220 results on '"Russo SJ"'
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2. Testosterone plays a limited role in cocaine-induced conditioned place preference and locomotor activity in male rats.
- Author
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Minerly AE, Russo SJ, Kemen LM, Nazarian A, Wu HB, Weierstall KM, Akhavan A, Jenab S, and Quinones-Jenab V
- Published
- 2008
3. Behavioral Animal Models and Neural-Circuit Framework of Depressive Disorder.
- Author
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Tian X, Russo SJ, and Li L
- Abstract
Depressive disorder is a chronic, recurring, and potentially life-endangering neuropsychiatric disease. According to a report by the World Health Organization, the global population suffering from depression is experiencing a significant annual increase. Despite its prevalence and considerable impact on people, little is known about its pathogenesis. One major reason is the scarcity of reliable animal models due to the absence of consensus on the pathology and etiology of depression. Furthermore, the neural circuit mechanism of depression induced by various factors is particularly complex. Considering the variability in depressive behavior patterns and neurobiological mechanisms among different animal models of depression, a comparison between the neural circuits of depression induced by various factors is essential for its treatment. In this review, we mainly summarize the most widely used behavioral animal models and neural circuits under different triggers of depression, aiming to provide a theoretical basis for depression prevention., (© 2024. The Author(s).)
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- 2024
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4. Sex differences in change-of-mind neuroeconomic decision-making is modulated by LINC00473 in medial prefrontal cortex.
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Cuttoli RD, Issler O, Yakubov B, Jahan N, Abid A, Kasparov S, Granizo K, Ahmed S, Russo SJ, Nestler EJ, and Sweis BM
- Abstract
Changing one's mind is a complex cognitive phenomenon involving a continuous re-appraisal of the trade-off between past costs and future value. Recent work modeling this behavior across species has established associations between aspects of this choice process and their contributions to altered decision-making in psychopathology. Here, we investigated the actions in medial prefrontal cortex (mPFC) neurons of long intergenic non-coding RNA, LINC00473, known to induce stress resilience in a striking sex-dependent manner, but whose role in cognitive function is unknown. We characterized complex decision-making behavior in male and female mice longitudinally in our neuroeconomic foraging paradigm, Restaurant Row, following virus-mediated LINC00473 expression in mPFC neurons. On this task, mice foraged for their primary source of food among varying costs (delays) and subjective value (flavors) while on a limited time-budget during which decisions to accept and wait for rewards were separated into discrete stages of primary commitments and secondary re-evaluations. We discovered important differences in decision-making behavior between female and male mice. LINC00473 expression selectively influenced multiple features of re-evaluative choices, without affecting primary decisions, in female mice only. These behavioral effects included changing how mice (i) cached the value of the passage of time and (ii) weighed their history of economically disadvantageous choices. Both processes were uniquely linked to change-of-mind decisions and underlie the computational bases of distinct aspects of counterfactual thinking. These findings reveal a key bridge between a molecular driver of stress resilience and psychological mechanisms underlying sex-specific decision-making proclivities.
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- 2024
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5. A Double Hit of Social and Economic Stress in Mice Precipitates Changes in Decision-Making Strategies.
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Durand-de Cuttoli R, Martínez-Rivera FJ, Li L, Minier-Toribio A, Dong Z, Cai DJ, Russo SJ, Nestler EJ, and Sweis BM
- Subjects
- Animals, Male, Mice, Eating psychology, Social Defeat, Body Weight, Disease Models, Animal, Stress, Psychological, Decision Making physiology, Reward, Mice, Inbred C57BL
- Abstract
Background: Economic stress can serve as a second hit for people who have already accumulated a history of adverse life experiences. How one recovers from a setback is a core feature of resilience but is seldom captured in animal studies., Methods: We challenged mice in a novel 2-hit stress model by first exposing them to chronic social defeat stress and then testing adaptations to increasing reward scarcity on a neuroeconomic task. Mice were tested across months on the Restaurant Row task, during which they foraged daily for their primary source of food while on a limited time budget in a closed-economy system. An abrupt transition into a reward-scarce environment elicits an economic challenge, precipitating a drop in food intake and body weight to which mice must respond to survive., Results: We found that mice with a history of social stress mounted a robust behavioral response to this economic challenge that was achieved through a complex redistribution of time allocation among competing opportunities. Interestingly, we found that mice with a history of social defeat displayed changes in the development of decision-making policies during the recovery process that are important not only for ensuring food security necessary for survival but also prioritizing subjective value and that these changes emerged only for certain types of choices., Conclusions: These findings indicate that an individual's capacity to recover from economic challenges depends on that person's prior history of stress and can affect multiple decision-making aspects of subjective well-being, thus highlighting a motivational balance that may be altered in stress-related disorders such as depression., (Copyright © 2023 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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6. Neurobiology and systems biology of stress resilience.
- Author
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Kalisch R, Russo SJ, and Müller MB
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- Humans, Animals, Brain, Stress, Psychological physiopathology, Systems Biology, Neurobiology, Resilience, Psychological
- Abstract
Stress resilience is the phenomenon that some people maintain their mental health despite exposure to adversity or show only temporary impairments followed by quick recovery. Resilience research attempts to unravel the factors and mechanisms that make resilience possible and to harness its insights for the development of preventative interventions in individuals at risk for acquiring stress-related dysfunctions. Biological resilience research has been lagging behind the psychological and social sciences but has seen a massive surge in recent years. At the same time, progress in this field has been hampered by methodological challenges related to finding suitable operationalizations and study designs, replicating findings, and modeling resilience in animals. We embed a review of behavioral, neuroimaging, neurobiological, and systems biological findings in adults in a critical methods discussion. We find preliminary evidence that hippocampus-based pattern separation and prefrontal-based cognitive control functions protect against the development of pathological fears in the aftermath of singular, event-type stressors [as found in fear-related disorders, including simpler forms of posttraumatic stress disorder (PTSD)] by facilitating the perception of safety. Reward system-based pursuit and savoring of positive reinforcers appear to protect against the development of more generalized dysfunctions of the anxious-depressive spectrum resulting from more severe or longer-lasting stressors (as in depression, generalized or comorbid anxiety, or severe PTSD). Links between preserved functioning of these neural systems under stress and neuroplasticity, immunoregulation, gut microbiome composition, and integrity of the gut barrier and the blood-brain barrier are beginning to emerge. On this basis, avenues for biological interventions are pointed out.
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- 2024
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7. Mono-methylation of lysine 27 at histone 3 confers lifelong susceptibility to stress.
- Author
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Torres-Berrío A, Estill M, Patel V, Ramakrishnan A, Kronman H, Minier-Toribio A, Issler O, Browne CJ, Parise EM, van der Zee YY, Walker DM, Martínez-Rivera FJ, Lardner CK, Durand-de Cuttoli R, Russo SJ, Shen L, Sidoli S, and Nestler EJ
- Abstract
Histone post-translational modifications are critical for mediating persistent alterations in gene expression. By combining unbiased proteomics profiling and genome-wide approaches, we uncovered a role for mono-methylation of lysine 27 at histone H3 (H3K27me1) in the enduring effects of stress. Specifically, mice susceptible to early life stress (ELS) or chronic social defeat stress (CSDS) displayed increased H3K27me1 enrichment in the nucleus accumbens (NAc), a key brain-reward region. Stress-induced H3K27me1 accumulation occurred at genes that control neuronal excitability and was mediated by the VEFS domain of SUZ12, a core subunit of the polycomb repressive complex-2, which controls H3K27 methylation patterns. Viral VEFS expression changed the transcriptional profile of the NAc, led to social, emotional, and cognitive abnormalities, and altered excitability and synaptic transmission of NAc D1-medium spiny neurons. Together, we describe a novel function of H3K27me1 in the brain and demonstrate its role as a "chromatin scar" that mediates lifelong stress susceptibility., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024 Elsevier Inc. All rights reserved.)
- Published
- 2024
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8. Immune-Targeted Therapies for Depression: Current Evidence for Antidepressant Effects of Monoclonal Antibodies.
- Author
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Rizk MM, Bolton L, Cathomas F, He H, Russo SJ, Guttman-Yassky E, Mann JJ, and Murrough J
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- Humans, Depressive Disorder, Treatment-Resistant drug therapy, Antibodies, Monoclonal therapeutic use, Antibodies, Monoclonal pharmacology, Antibodies, Monoclonal adverse effects, Antidepressive Agents therapeutic use
- Abstract
Importance: Increasing evidence suggests a potential role of immune-modulatory drugs for treatment-resistant depression. This scoping review explores the emerging evidence regarding the antidepressant effects of monoclonal antibodies (mAbs), a relatively newer class of immune therapeutics with favorable safety profile., Observations: PubMed was searched up to November 2023 for English publications addressing the antidepressant effects of mAbs, including meta-analyses, randomized controlled trials, open-label, single-arm studies, and case series. Several mAbs have shown potential antidepressant effects, but most studies in primary inflammatory disorders included patients with mild depression. Only infliximab and sirukumab were directly examined in individuals with primary depression. mAbs that do not require laboratory monitoring, such as ixekizumab and dupilumab, could hold potential promise if future studies establish their safety profile regarding suicide risk., Conclusions and Relevance: The use of several mAbs for the treatment of primary inflammatory disorders has been associated with improvement of comorbid depressive symptoms. Given their unique mechanisms of action, mAbs may offer a new hope for depressed patients who do not respond to currently available antidepressants. Further research addressing individuals with more severe depressive symptoms is essential. Direct examination of antidepressant effects of mAbs in people with primary depressive disorders is also crucial to refine their clinical use in the treatment of depression., (© Copyright 2024 Physicians Postgraduate Press, Inc.)
- Published
- 2024
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9. Neurobiological basis of stress resilience.
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Nestler EJ and Russo SJ
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- Humans, Animals, Stress Disorders, Post-Traumatic physiopathology, Stress Disorders, Post-Traumatic psychology, Brain physiology, Brain physiopathology, Stress, Psychological physiopathology, Resilience, Psychological
- Abstract
A majority of humans faced with severe stress maintain normal physiological and behavioral function, a process referred to as resilience. Such stress resilience has been modeled in laboratory animals and, over the past 15 years, has transformed our understanding of stress responses and how to approach the treatment of human stress disorders such as depression, post-traumatic stress disorder (PTSD), and anxiety disorders. Work in rodents has demonstrated that resilience to chronic stress is an active process that involves much more than simply avoiding the deleterious effects of the stress. Rather, resilience is mediated largely by the induction of adaptations that are associated uniquely with resilience. Such mechanisms of natural resilience in rodents are being characterized at the molecular, cellular, and circuit levels, with an increasing number being validated in human investigations. Such discoveries raise the novel possibility that treatments for human stress disorders, in addition to being geared toward reversing the damaging effects of stress, can also be based on inducing mechanisms of natural resilience in individuals who are inherently more susceptible. This review provides a progress report on this evolving field., Competing Interests: Declaration of interests The authors declare no competing interests, (Copyright © 2024 Elsevier Inc. All rights reserved.)
- Published
- 2024
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10. Histone serotonylation in dorsal raphe nucleus contributes to stress- and antidepressant-mediated gene expression and behavior.
- Author
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Al-Kachak A, Di Salvo G, Fulton SL, Chan JC, Farrelly LA, Lepack AE, Bastle RM, Kong L, Cathomas F, Newman EL, Menard C, Ramakrishnan A, Safovich P, Lyu Y, Covington HE 3rd, Shen L, Gleason K, Tamminga CA, Russo SJ, and Maze I
- Subjects
- Animals, Male, Female, Humans, Mice, Serotonin metabolism, Mice, Inbred C57BL, Epigenesis, Genetic drug effects, Behavior, Animal drug effects, Gene Expression Regulation drug effects, Social Defeat, Dorsal Raphe Nucleus metabolism, Dorsal Raphe Nucleus drug effects, Histones metabolism, Stress, Psychological metabolism, Antidepressive Agents pharmacology, Depressive Disorder, Major metabolism, Depressive Disorder, Major genetics, Depressive Disorder, Major drug therapy
- Abstract
Mood disorders are an enigmatic class of debilitating illnesses that affect millions of individuals worldwide. While chronic stress clearly increases incidence levels of mood disorders, including major depressive disorder (MDD), stress-mediated disruptions in brain function that precipitate these illnesses remain largely elusive. Serotonin-associated antidepressants (ADs) remain the first line of therapy for many with depressive symptoms, yet low remission rates and delays between treatment and symptomatic alleviation have prompted skepticism regarding direct roles for serotonin in the precipitation and treatment of affective disorders. Our group recently demonstrated that serotonin epigenetically modifies histone proteins (H3K4me3Q5ser) to regulate transcriptional permissiveness in brain. However, this non-canonical phenomenon has not yet been explored following stress and/or AD exposures. Here, we employed a combination of genome-wide and biochemical analyses in dorsal raphe nucleus (DRN) of male and female mice exposed to chronic social defeat stress, as well as in DRN of human MDD patients, to examine the impact of stress exposures/MDD diagnosis on H3K4me3Q5ser dynamics, as well as associations between the mark and depression-related gene expression. We additionally assessed stress-induced/MDD-associated regulation of H3K4me3Q5ser following AD exposures, and employed viral-mediated gene therapy in mice to reduce H3K4me3Q5ser levels in DRN and examine its impact on stress-associated gene expression and behavior. We found that H3K4me3Q5ser plays important roles in stress-mediated transcriptional plasticity. Chronically stressed mice displayed dysregulated H3K4me3Q5ser dynamics in DRN, with both AD- and viral-mediated disruption of these dynamics proving sufficient to attenuate stress-mediated gene expression and behavior. Corresponding patterns of H3K4me3Q5ser regulation were observed in MDD subjects on vs. off ADs at their time of death. These findings thus establish a neurotransmission-independent role for serotonin in stress-/AD-associated transcriptional and behavioral plasticity, observations of which may be of clinical relevance to human MDD and its treatment., (© 2024. The Author(s).)
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- 2024
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11. Structural pharmacology and therapeutic potential of 5-methoxytryptamines.
- Author
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Warren AL, Lankri D, Cunningham MJ, Serrano IC, Parise LF, Kruegel AC, Duggan P, Zilberg G, Capper MJ, Havel V, Russo SJ, Sames D, and Wacker D
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- Animals, Humans, Male, Mice, Cryoelectron Microscopy, Hallucinogens, Lysergic Acid Diethylamide chemistry, Lysergic Acid Diethylamide pharmacology, Models, Molecular, Serotonin Receptor Agonists chemistry, Serotonin Receptor Agonists pharmacology, Serotonin Receptor Agonists therapeutic use, Structure-Activity Relationship, 5-Methoxytryptamine analogs & derivatives, 5-Methoxytryptamine chemistry, 5-Methoxytryptamine pharmacology, 5-Methoxytryptamine therapeutic use, Anti-Anxiety Agents chemistry, Anti-Anxiety Agents pharmacology, Anti-Anxiety Agents therapeutic use, Antidepressive Agents chemistry, Antidepressive Agents pharmacology, Antidepressive Agents therapeutic use, Methoxydimethyltryptamines chemistry, Methoxydimethyltryptamines pharmacology, Methoxydimethyltryptamines therapeutic use, Receptor, Serotonin, 5-HT1A chemistry, Receptor, Serotonin, 5-HT1A genetics, Receptor, Serotonin, 5-HT1A metabolism, Receptor, Serotonin, 5-HT1A ultrastructure, Receptor, Serotonin, 5-HT2A chemistry, Receptor, Serotonin, 5-HT2A genetics, Receptor, Serotonin, 5-HT2A metabolism, Receptor, Serotonin, 5-HT2A ultrastructure
- Abstract
Psychedelic substances such as lysergic acid diethylamide (LSD) and psilocybin show potential for the treatment of various neuropsychiatric disorders
1-3 . These compounds are thought to mediate their hallucinogenic and therapeutic effects through the serotonin (5-hydroxytryptamine (5-HT)) receptor 5-HT2A (ref.4 ). However, 5-HT1A also plays a part in the behavioural effects of tryptamine hallucinogens5 , particularly 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT), a psychedelic found in the toxin of Colorado River toads6 . Although 5-HT1A is a validated therapeutic target7,8 , little is known about how psychedelics engage 5-HT1A and which effects are mediated by this receptor. Here we map the molecular underpinnings of 5-MeO-DMT pharmacology through five cryogenic electron microscopy (cryo-EM) structures of 5-HT1A , systematic medicinal chemistry, receptor mutagenesis and mouse behaviour. Structure-activity relationship analyses of 5-methoxytryptamines at both 5-HT1A and 5-HT2A enable the characterization of molecular determinants of 5-HT1A signalling potency, efficacy and selectivity. Moreover, we contrast the structural interactions and in vitro pharmacology of 5-MeO-DMT and analogues to the pan-serotonergic agonist LSD and clinically used 5-HT1A agonists. We show that a 5-HT1A -selective 5-MeO-DMT analogue is devoid of hallucinogenic-like effects while retaining anxiolytic-like and antidepressant-like activity in socially defeated animals. Our studies uncover molecular aspects of 5-HT1A -targeted psychedelics and therapeutics, which may facilitate the future development of new medications for neuropsychiatric disorders., (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2024
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12. Mesolimbic Neural Response Dynamics Predict Future Individual Alcohol Drinking in Mice.
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Montgomery SE, Li L, Russo SJ, Calipari ES, Nestler EJ, Morel C, and Han MH
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- Animals, Male, Mice, Mice, Inbred C57BL, Limbic System physiopathology, Ethanol pharmacology, Ethanol administration & dosage, Alcohol Drinking physiopathology, Alcohol Drinking genetics, Reward, Ventral Tegmental Area drug effects, Dopaminergic Neurons physiology, Dopaminergic Neurons drug effects
- Abstract
Background: Individual variability in response to rewarding stimuli is a striking but understudied phenomenon. The mesolimbic dopamine system is critical in encoding the reinforcing properties of both natural reward and alcohol; however, how innate or baseline differences in the response dynamics of this circuit define individual behavior and shape future vulnerability to alcohol remain unknown., Methods: Using naturalistic behavioral assays, a voluntary alcohol drinking paradigm, in vivo fiber photometry, in vivo electrophysiology, and chemogenetics, we investigated how differences in mesolimbic neural circuit activity contribute to the individual variability seen in reward processing and, by proxy, alcohol drinking., Results: We first characterized heterogeneous behavioral and neural responses to natural reward and defined how these baseline responses predicted future individual alcohol-drinking phenotypes in male mice. We then determined spontaneous ventral tegmental area dopamine neuron firing profiles associated with responses to natural reward that predicted alcohol drinking. Using a dual chemogenetic approach, we mimicked specific mesolimbic dopamine neuron firing activity before or during voluntary alcohol drinking to link unique neurophysiological profiles to individual phenotype. We show that hyperdopaminergic individuals exhibit a lower neuronal response to both natural reward and alcohol that predicts lower levels of alcohol consumption in the future., Conclusions: These findings reveal unique, circuit-specific neural signatures that predict future individual vulnerability or resistance to alcohol and expand the current knowledge base on how some individuals are able to titrate their alcohol consumption whereas others go on to engage in unhealthy alcohol-drinking behaviors., (Copyright © 2023 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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13. Serum cytokine and inflammatory markers in individuals with heroin use disorder: potential biomarkers for diagnosis and disease severity.
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Butelman ER, Huang Y, Cathomas F, Gaudreault PO, Roussos P, Russo SJ, Goldstein RZ, and Alia-Klein N
- Abstract
Opioid use disorders cause major morbidity and mortality, and there is a pressing need for novel mechanistic targets and biomarkers for diagnosis and prognosis. Exposure to mu-opioid receptor (MOR) agonists causes changes in cytokine and inflammatory protein networks in peripheral blood, and also in brain glia and neurons. Individuals with heroin use disorder (iHUD) show dysregulated levels of several cytokines in blood. However, there is limited data on a comprehensive panel of such markers in iHUD versus healthy controls (HC), especially as a multi-target biomarker. We used a validated proximity extension assay for relative quantification of 92 cytokines and inflammatory proteins in serum of iHUD on medication assisted therapy (MAT; n=21), versus HC (n=24). Twenty-nine targets showed significant group differences (primarily iHUD>HC), surviving multiple comparison correction (p=0.05). This included 19 members of canonical cytokine families, including specific chemokines, interleukins, growth factors, and tumor necrosis factor (TNF)-related proteins. For dimensionality reduction, data from these 19 cytokines were entered into a principal component (PC) analysis, and PC1 scores were iHUD>HC (p<0.0001). A receiver-operating characteristic (ROC) curve analysis yielded an AUROC=91.7% (p<0.0001). This PC1 score remained a positive predictor of being in the HUD group in a multivariable logistic regression, which included demographic/clinical variables. Overall, this study shows a panel of cytokines that differ significantly between iHUD and HC, and provides a multi-target "cytokine biomarker score" for potential diagnostic purposes, and examination of disease severity.
- Published
- 2024
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14. Sex-Specific Regulation of Stress Susceptibility by the Astrocytic Gene Htra1 .
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Parise EM, Gyles TM, Godino A, Sial OK, Browne CJ, Parise LF, Torres-Berrío A, Salery M, Durand-de Cuttoli R, Rivera MT, Cardona-Acosta AM, Holt L, Markovic T, van der Zee YY, Lorsch ZS, Cathomas F, Garon JB, Teague C, Issler O, Hamilton PJ, Bolaños-Guzmán CA, Russo SJ, and Nestler EJ
- Abstract
Major depressive disorder (MDD) is linked to impaired structural and synaptic plasticity in limbic brain regions. Astrocytes, which regulate synapses and are influenced by chronic stress, likely contribute to these changes. We analyzed astrocyte gene profiles in the nucleus accumbens (NAc) of humans with MDD and mice exposed to chronic stress. Htra1 , which encodes an astrocyte-secreted protease targeting the extracellular matrix (ECM), was significantly downregulated in the NAc of males but upregulated in females in both species. Manipulating Htra1 in mouse NAc astrocytes bidirectionally controlled stress susceptibility in a sex-specific manner. Such Htra1 manipulations also altered neuronal signaling and ECM structural integrity in NAc. These findings highlight astroglia and the brain's ECM as key mediators of sex-specific stress vulnerability, offering new approaches for MDD therapies.
- Published
- 2024
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15. Male and female variability in response to chronic stress and morphine in C57BL/6J, DBA/2J, and their BXD progeny.
- Author
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Morel C, Parise LF, Van der Zee Y, Issler O, Cai M, Browne C, Blando A, Leclair K, Haynes S, Williams RW, Mulligan MK, Russo SJ, Nestler EJ, and Han MH
- Abstract
Drug addiction is a multifactorial syndrome in which genetic predispositions and exposure to environmental stressors constitute major risk factors for the early onset, escalation, and relapse of addictive behaviors. While it is well known that stress plays a key role in drug addiction, the genetic factors that make certain individuals particularly sensitive to stress and thereby more vulnerable to becoming addicted are unknown. In an effort to test a complex set of gene x environment interactions-specifically gene x chronic stress -here we leveraged a systems genetics resource: BXD recombinant inbred mice (BXD5, BXD8, BXD14, BXD22, BXD29, and BXD32) and their parental mouse lines, C57BL/6J and DBA/2J. Utilizing the chronic social defeat stress (CSDS) and chronic variable stress (CVS) paradigms, we first showed sexual dimorphism in the behavioral stress response between the mouse strains. Further, we observed an interaction between genetic background and vulnerability to prolonged exposure to non-social stressors. Finally, we found that DBA/2J and C57BL/6J mice pre-exposed to stress displayed differences in morphine sensitivity. Our results support the hypothesis that genetic variation in predisposition to stress responses influences morphine sensitivity and is likely to modulate the development of drug addiction.
- Published
- 2024
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16. Circulating myeloid-derived MMP8 in stress susceptibility and depression.
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Cathomas F, Lin HY, Chan KL, Li L, Parise LF, Alvarez J, Durand-de Cuttoli R, Aubry AV, Muhareb S, Desland F, Shimo Y, Ramakrishnan A, Estill M, Ferrer-Pérez C, Parise EM, Wilk CM, Kaster MP, Wang J, Sowa A, Janssen WG, Costi S, Rahman A, Fernandez N, Campbell M, Swirski FK, Nestler EJ, Shen L, Merad M, Murrough JW, and Russo SJ
- Subjects
- Animals, Humans, Mice, Extracellular Space metabolism, Mice, Inbred C57BL, Nucleus Accumbens metabolism, Nucleus Accumbens pathology, Parenchymal Tissue metabolism, Single-Cell Gene Expression Analysis, Social Behavior, Social Isolation, Depressive Disorder, Major blood, Depressive Disorder, Major enzymology, Depressive Disorder, Major genetics, Depressive Disorder, Major metabolism, Matrix Metalloproteinase 8 blood, Matrix Metalloproteinase 8 deficiency, Matrix Metalloproteinase 8 genetics, Matrix Metalloproteinase 8 metabolism, Monocytes chemistry, Monocytes immunology, Monocytes metabolism, Stress, Psychological blood, Stress, Psychological genetics, Stress, Psychological immunology, Stress, Psychological metabolism
- Abstract
Psychosocial stress has profound effects on the body, including the immune system and the brain
1,2 . Although a large number of pre-clinical and clinical studies have linked peripheral immune system alterations to stress-related disorders such as major depressive disorder (MDD)3 , the underlying mechanisms are not well understood. Here we show that expression of a circulating myeloid cell-specific proteinase, matrix metalloproteinase 8 (MMP8), is increased in the serum of humans with MDD as well as in stress-susceptible mice following chronic social defeat stress (CSDS). In mice, we show that this increase leads to alterations in extracellular space and neurophysiological changes in the nucleus accumbens (NAc), as well as altered social behaviour. Using a combination of mass cytometry and single-cell RNA sequencing, we performed high-dimensional phenotyping of immune cells in circulation and in the brain and demonstrate that peripheral monocytes are strongly affected by stress. In stress-susceptible mice, both circulating monocytes and monocytes that traffic to the brain showed increased Mmp8 expression following chronic social defeat stress. We further demonstrate that circulating MMP8 directly infiltrates the NAc parenchyma and controls the ultrastructure of the extracellular space. Depleting MMP8 prevented stress-induced social avoidance behaviour and alterations in NAc neurophysiology and extracellular space. Collectively, these data establish a mechanism by which peripheral immune factors can affect central nervous system function and behaviour in the context of stress. Targeting specific peripheral immune cell-derived matrix metalloproteinases could constitute novel therapeutic targets for stress-related neuropsychiatric disorders., (© 2024. The Author(s).)- Published
- 2024
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17. Neurobiology of social stress and age-related neurodegeneration.
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Wang J and Russo SJ
- Subjects
- Humans, Amyloid beta-Peptides, Alzheimer Disease
- Published
- 2024
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18. Transcriptional correlates of cocaine-associated learning in striatal ARC ensembles.
- Author
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Salery M, Godino A, Xu YQ, Fullard JF, Durand-de Cuttoli R, LaBanca AR, Holt LM, Russo SJ, Roussos P, and Nestler EJ
- Abstract
Learned associations between the rewarding effects of drugs and the context in which they are experienced underlie context-induced relapse. Previous work demonstrates the importance of sparse neuronal populations - called neuronal ensembles - in associative learning and cocaine seeking, but it remains unknown whether the encoding vs. retrieval of cocaine-associated memories involves similar or distinct mechanisms of ensemble activation and reactivation in nucleus accumbens (NAc). We use ArcCreER
T2 mice to establish that mostly distinct NAc ensembles are recruited by initial vs. repeated exposures to cocaine, which are then differentially reactivated and exert distinct effects during cocaine-related memory retrieval. Single-nuclei RNA-sequencing of these ensembles demonstrates predominant recruitment of D1 medium spiny neurons and identifies transcriptional properties that are selective to cocaine-recruited NAc neurons and could explain distinct excitability features. These findings fundamentally advance our understanding of how cocaine drives pathological memory formation during repeated exposures.- Published
- 2023
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19. Circulating senescent myeloid cells infiltrate the brain and cause neurodegeneration in histiocytic disorders.
- Author
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Wilk CM, Cathomas F, Török O, Le Berichel J, Park MD, Bigenwald C, Heaton GR, Hamon P, Troncoso L, Scull BP, Dangoor D, Silvin A, Fleischmann R, Belabed M, Lin H, Merad Taouli E, Boettcher S, Li L, Aubry A, Manz MG, Kofler JK, Yue Z, Lira SA, Ginhoux F, Crary JF, McClain KL, Picarsic JL, Russo SJ, Allen CE, and Merad M
- Subjects
- Humans, Brain metabolism, Myeloid Cells metabolism, Cell Differentiation, Proto-Oncogene Proteins B-raf genetics, Proto-Oncogene Proteins B-raf metabolism, Histiocytosis, Langerhans-Cell genetics, Histiocytosis, Langerhans-Cell pathology, Histiocytosis, Langerhans-Cell therapy
- Abstract
Neurodegenerative diseases (ND) are characterized by progressive loss of neuronal function. Mechanisms of ND pathogenesis are incompletely understood, hampering the development of effective therapies. Langerhans cell histiocytosis (LCH) is an inflammatory neoplastic disorder caused by hematopoietic progenitors expressing mitogen-activated protein kinase (MAPK)-activating mutations that differentiate into senescent myeloid cells that drive lesion formation. Some individuals with LCH subsequently develop progressive and incurable neurodegeneration (LCH-ND). Here, we showed that LCH-ND was caused by myeloid cells that were clonal with peripheral LCH cells. Circulating BRAFV600E
+ myeloid cells caused the breakdown of the blood-brain barrier (BBB), enhancing migration into the brain parenchyma where they differentiated into senescent, inflammatory CD11a+ macrophages that accumulated in the brainstem and cerebellum. Blocking MAPK activity and senescence programs reduced peripheral inflammation, brain parenchymal infiltration, neuroinflammation, neuronal damage and improved neurological outcome in preclinical LCH-ND. MAPK activation and senescence programs in circulating myeloid cells represent targetable mechanisms of LCH-ND., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2023. Published by Elsevier Inc.)- Published
- 2023
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20. Social stress induces autoimmune responses against the brain.
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Shimo Y, Cathomas F, Lin HY, Chan KL, Parise LF, Li L, Ferrer-Pérez C, Muhareb S, Costi S, Murrough JW, and Russo SJ
- Subjects
- Humans, Mice, Animals, Brain, Social Behavior, Immunoglobulin G, Stress, Psychological psychology, Mice, Inbred C57BL, Autoimmunity, Depressive Disorder, Major
- Abstract
Clinical studies have revealed a high comorbidity between autoimmune diseases and psychiatric disorders, including major depressive disorder (MDD). However, the mechanisms connecting autoimmunity and depression remain unclear. Here, we aim to identify the processes by which stress impacts the adaptive immune system and the implications of such responses to depression. To examine this relationship, we analyzed antibody responses and autoimmunity in the chronic social defeat stress (CSDS) model in mice, and in clinical samples from patients with MDD. We show that socially stressed mice have elevated serum antibody concentrations. We also confirm that social stress leads to the expansion of specific T and B cell populations within the cervical lymph nodes, where brain-derived antigens are preferentially delivered. Sera from stress-susceptible (SUS) mice exhibited high reactivity against brain tissue, and brain-reactive immunoglobulin G (IgG) antibody levels positively correlated with social avoidance behavior. IgG antibody concentrations in the brain were significantly higher in SUS mice than in unstressed mice, and positively correlated with social avoidance. Similarly, in humans, increased peripheral levels of brain-reactive IgG antibodies were associated with increased anhedonia. In vivo assessment of IgG antibodies showed they largely accumulate around blood vessels in the brain only in SUS mice. B cell-depleted mice exhibited stress resilience following CSDS, confirming the contribution of antibody-producing cells to social avoidance behavior. This study provides mechanistic insights connecting stress-induced autoimmune reactions against the brain and stress susceptibility. Therapeutic strategies targeting autoimmune responses might aid in the treatment of patients with MDD featuring immune abnormalities., Competing Interests: Competing interests statement:Y.S. is currently a full time employee of Shionogi & Co., Ltd. This work is independent of Y.S.’s affiliation with Shionogi & Co., Ltd and was performed solely while serving as a visiting scholar at Mount Sinai.
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- 2023
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21. Early life stress and altered social behaviors: A perspective across species.
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Parise LF, Joseph Burnett C, and Russo SJ
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Childhood and adolescent affiliations guide how individuals engage in social relationships throughout their lifetime and adverse experiences can promote biological alterations that facilitate behavioral maladaptation. Indeed, childhood victims of abuse are more likely to be diagnosed with conduct or mood disorders which are both characterized by altered social engagement. A key domain particularly deserving of attention is aggressive behavior, a hallmark of many disorders characterized by deficits in reward processing. Animal models have been integral in identifying both the short- and long-term consequences of stress exposure and suggest that whether it is disruption to parental care or social isolation, chronic exposure to early life stress increases corticosterone, changes the expression of neurotransmitters and neuromodulators, and facilitates structural alterations to the hypothalamus, hippocampus, and amygdala, influencing how these brain regions communicate with other reward-related substrates. Herein, we describe how adverse early life experiences influence social behavioral outcomes across a wide range of species and highlight the long-term biological mechanisms that are most relevant to maladaptive aggressive behavior., (Copyright © 2023. Published by Elsevier B.V.)
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- 2023
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22. Circulating senescent myeloid cells drive blood brain barrier breakdown and neurodegeneration.
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Wilk CM, Cathomas F, Török O, Le Berichel J, Park MD, Heaton GR, Hamon P, Troncoso L, Scull BP, Dangoor D, Silvin A, Fleischmann R, Belabed M, Lin H, Taouli EM, Boettcher S, Manz MG, Kofler JK, Yue Z, Lira SA, Ginhoux F, Crary JF, McClain KL, Picarsic JL, Russo SJ, Allen CE, and Merad M
- Abstract
Neurodegenerative diseases (ND) are characterized by progressive loss of neuronal function. Mechanisms of ND pathogenesis are incompletely understood, hampering the development of effective therapies. Langerhans cell histiocytosis (LCH) is an inflammatory neoplastic disorder caused by hematopoietic progenitors expressing MAPK activating mutations that differentiate into senescent myeloid cells that drive lesion formation. Some patients with LCH subsequently develop progressive and incurable neurodegeneration (LCH-ND). Here, we show that LCH-ND is caused by myeloid cells that are clonal with peripheral LCH cells. We discovered that circulating BRAF V600E
+ myeloid cells cause the breakdown of the blood-brain barrier (BBB), enhancing migration into the brain parenchyma where they differentiate into senescent, inflammatory CD11a+ macrophages that accumulate in the brainstem and cerebellum. Blocking MAPK activity and senescence programs reduced parenchymal infiltration, neuroinflammation, neuronal damage and improved neurological outcome in preclinical LCH-ND. MAPK activation and senescence programs in circulating myeloid cells represent novel and targetable mechanisms of ND.- Published
- 2023
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23. Central regulation of stress-evoked peripheral immune responses.
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Chan KL, Poller WC, Swirski FK, and Russo SJ
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- Humans, Adipose Tissue, Anxiety, Inflammation, Immunity, Depressive Disorder, Major
- Abstract
Stress-linked psychiatric disorders, including anxiety and major depressive disorder, are associated with systemic inflammation. Recent studies have reported stress-induced alterations in haematopoiesis that result in monocytosis, neutrophilia, lymphocytopenia and, consequently, in the upregulation of pro-inflammatory processes in immunologically relevant peripheral tissues. There is now evidence that this peripheral inflammation contributes to the development of psychiatric symptoms as well as to common co-morbidities of psychiatric disorders such as metabolic syndrome and immunosuppression. Here, we review the specific brain and spinal regions, and the neuronal populations within them, that respond to stress and transmit signals to peripheral tissues via the autonomic nervous system or neuroendocrine pathways to influence immunological function. We comprehensively summarize studies that have employed retrograde tracing to define neurocircuits linking the brain to the bone marrow, spleen, gut, adipose tissue and liver. Moreover, we highlight studies that have used chemogenetic or optogenetic manipulation or intracerebroventricular administration of peptide hormones to control somatic immune responses. Collectively, this growing body of literature illustrates potential mechanisms through which stress signals are conveyed from the CNS to immune cells to regulate stress-relevant behaviours and comorbid pathophysiology., (© 2023. Springer Nature Limited.)
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- 2023
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24. Histone H3 serotonylation dynamics in dorsal raphe nucleus contribute to stress- and antidepressant-mediated gene expression and behavior.
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Al-Kachak A, Fulton SL, Di Salvo G, Chan JC, Farrelly LA, Lepack AE, Bastle RM, Kong L, Cathomas F, Newman EL, Menard C, Ramakrishnan A, Safovich P, Lyu Y, Covington HE 3rd, Shen L, Gleason K, Tamminga CA, Russo SJ, and Maze I
- Abstract
Background: Major depressive disorder (MDD), along with related mood disorders, is a debilitating illness that affects millions of individuals worldwide. While chronic stress increases incidence levels of mood disorders, stress-mediated disruptions in brain function that precipitate these illnesses remain elusive. Serotonin-associated antidepressants (ADs) remain the first line of therapy for many with depressive symptoms, yet low remission rates and delays between treatment and symptomatic alleviation have prompted skepticism regarding precise roles for serotonin in the precipitation of mood disorders. Our group recently demonstrated that serotonin epigenetically modifies histone proteins (H3K4me3Q5ser) to regulate transcriptional permissiveness in brain. However, this phenomenon has not yet been explored following stress and/or AD exposures., Methods: We employed a combination of genome-wide and biochemical analyses in dorsal raphe nucleus (DRN) of male and female mice exposed to chronic social defeat stress to examine the impact of stress exposures on H3K4me3Q5ser dynamics, as well as associations between the mark and stress-induced gene expression. We additionally assessed stress-induced regulation of H3K4me3Q5ser following AD exposures, and employed viral-mediated gene therapy to reduce H3K4me3Q5ser levels in DRN and examine the impact on stress-associated gene expression and behavior., Results: We found that H3K4me3Q5ser plays important roles in stress-mediated transcriptional plasticity. Chronically stressed mice displayed dysregulated H3K4me3Q5ser dynamics in DRN, with both AD- and viral-mediated disruption of these dynamics proving sufficient to rescue stress-mediated gene expression and behavior., Conclusions: These findings establish a neurotransmission-independent role for serotonin in stress-/AD-associated transcriptional and behavioral plasticity in DRN., Competing Interests: COMPETING INTERESTS The authors declare no competing interests.
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- 2023
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25. Neuroimmune Mechanisms of Opioid Use Disorder and Recovery: Translatability to Human Studies, and Future Research Directions.
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Butelman ER, Goldstein RZ, Nwaneshiudu CA, Girdhar K, Roussos P, Russo SJ, and Alia-Klein N
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- Humans, Diffusion Tensor Imaging, Analgesics, Opioid therapeutic use, Heroin, Neuroimmunomodulation, Opioid-Related Disorders
- Abstract
Opioid use disorder (OUD) is a major current cause of morbidity and mortality. Long-term exposure to short-acting opioids (MOP-r agonists such as heroin or fentanyl) results in complex pathophysiological changes to neuroimmune and neuroinflammatory functions, affected in part by peripheral mechanisms (e.g., cytokines in blood), and by neuroendocrine systems such as the hypothalamic-pituitary-adrenal (HPA) stress axis. There are important findings from preclinical models, but their role in the trajectory and outcomes of OUD in humans is not well understood. The goal of this narrative review is to examine available data on immune and inflammatory functions in persons with OUD, and to identify major areas for future research. Peripheral blood biomarker studies revealed a pro-inflammatory state in persons with OUD in withdrawal or early abstinence, consistent with available postmortem brain studies (which show glial activation) and diffusion tensor imaging studies (indicating white matter disruptions), with gradual abstinence-associated recovery. The mechanistic roles of these neuroimmune and neuroinflammatory changes in the trajectory of OUD (including recovery and medication management) cannot be examined practically with postmortem data. Collection of longitudinal data in larger-scale human cohorts would allow examination of these mechanisms associated with OUD stage and progression. Given the heterogeneity in presentation of OUD, a precision medicine approach integrating multi-omic peripheral biomarkers and comprehensive phenotyping, including neuroimaging, can be beneficial in risk stratification, and individually optimized selection of interventions for individuals who will benefit, and assessments under refractory therapy., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 IBRO. Published by Elsevier Ltd. All rights reserved.)
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- 2023
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26. Chemokine receptor 5 signaling in PFC mediates stress susceptibility in female mice.
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Lin HY, Cathomas F, Li L, Cuttoli RD, Guevara C, Bayrak CS, Wang Q, Gupta S, Chan KL, Shimo Y, Parise LF, Yuan C, Aubry AV, Chen F, Wong J, Morel C, Huntley GW, Zhang B, Russo SJ, and Wang J
- Abstract
Chronic stress induces changes in the periphery and the central nervous system (CNS) that contribute to neuropathology and behavioral abnormalities associated with psychiatric disorders. In this study, we examined the impact of peripheral and central inflammation during chronic social defeat stress (CSDS) in female mice. Compared to male mice, we found that female mice exhibited heightened peripheral inflammatory response and identified C-C motif chemokine ligand 5 (CCL5), as a stress-susceptibility marker in females. Blocking CCL5 signaling in the periphery promoted resilience to CSDS. In the brain, stress-susceptible mice displayed increased expression of C-C chemokine receptor 5 (CCR5), a receptor for CCL5, in microglia in the prefrontal cortex (PFC). This upregulation was associated with microglia morphological changes, their increased migration to the blood vessels, and enhanced phagocytosis of synaptic components and vascular material. These changes coincided with neurophysiological alterations and impaired blood-brain barrier (BBB) integrity. By blocking CCR5 signaling specifically in the PFC were able to prevent stress-induced physiological changes and rescue social avoidance behavior. Our findings are the first to demonstrate that stress-mediated dysregulation of the CCL5-CCR5 axis triggers excessive phagocytosis of synaptic materials and neurovascular components by microglia, resulting in disruptions in neurotransmission, reduced BBB integrity, and increased stress susceptibility. Our study provides new insights into the role of cortical microglia in female stress susceptibility and suggests that the CCL5-CCR5 axis may serve as a novel sex-specific therapeutic target for treating psychiatric disorders in females.
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- 2023
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27. Monomethylation of Lysine 27 at Histone 3 Confers Lifelong Susceptibility to Stress.
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Torres-Berrío A, Estill M, Ramakrishnan A, Kronman H, Patel V, Minier-Toribio A, Issler O, Browne CJ, Parise EM, van der Zee Y, Walker D, Martínez-Rivera FJ, Lardner CK, Cuttoli RD, Russo SJ, Shen L, Sidoli S, and Nestler EJ
- Abstract
Histone post-translational modifications are critical for mediating persistent alterations in gene expression. By combining unbiased proteomics profiling, and genome-wide approaches, we uncovered a role for mono-methylation of lysine 27 at histone H3 (H3K27me1) in the enduring effects of stress. Specifically, mice exposed to early life stress (ELS) or to chronic social defeat stress (CSDS) in adulthood displayed increased enrichment of H3K27me1, and transient decreases in H3K27me2, in the nucleus accumbens (NAc), a key brain-reward region. Stress induction of H3K27me1 was mediated by the VEFS domain of SUZ12, a core subunit of the polycomb repressive complex-2, which is induced by chronic stress and controls H3K27 methylation patterns. Overexpression of the VEFS domain led to social, emotional, and cognitive abnormalities, and altered excitability of NAc D1 mediums spiny neurons. Together, we describe a novel function of H3K27me1 in brain and demonstrate its role as a "chromatin scar" that mediates lifelong stress susceptibility.
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- 2023
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28. ZBTB7A regulates MDD-specific chromatin signatures and astrocyte-mediated stress vulnerability in orbitofrontal cortex.
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Fulton SL, Bendl J, Gameiro-Ros I, Fullard JF, Al-Kachak A, Lepack AE, Stewart AF, Singh S, Poller WC, Bastle RM, Hauberg ME, Fakira AK, Chen M, Cuttoli RD, Cathomas F, Ramakrishnan A, Gleason K, Shen L, Tamminga CA, Milosevic A, Russo SJ, Swirski F, Blitzer RD, Slesinger PA, Roussos P, and Maze I
- Abstract
Hyperexcitability in the orbitofrontal cortex (OFC) is a key clinical feature of anhedonic domains of Major Depressive Disorder (MDD). However, the cellular and molecular substrates underlying this dysfunction remain unknown. Here, cell-population-specific chromatin accessibility profiling in human OFC unexpectedly mapped genetic risk for MDD exclusively to non-neuronal cells, and transcriptomic analyses revealed significant glial dysregulation in this region. Characterization of MDD-specific cis-regulatory elements identified ZBTB7A - a transcriptional regulator of astrocyte reactivity - as an important mediator of MDD-specific chromatin accessibility and gene expression. Genetic manipulations in mouse OFC demonstrated that astrocytic Zbtb7a is both necessary and sufficient to promote behavioral deficits, cell-type-specific transcriptional and chromatin profiles, and OFC neuronal hyperexcitability induced by chronic stress - a major risk factor for MDD. These data thus highlight a critical role for OFC astrocytes in stress vulnerability and pinpoint ZBTB7A as a key dysregulated factor in MDD that mediates maladaptive astrocytic functions driving OFC hyperexcitability., Competing Interests: Competing financial interests The authors declare no competing financial interests.
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- 2023
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29. Transcriptional control of nucleus accumbens neuronal excitability by retinoid X receptor alpha tunes sensitivity to drug rewards.
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Godino A, Salery M, Durand-de Cuttoli R, Estill MS, Holt LM, Futamura R, Browne CJ, Mews P, Hamilton PJ, Neve RL, Shen L, Russo SJ, and Nestler EJ
- Subjects
- Mice, Male, Female, Animals, Nucleus Accumbens metabolism, Retinoid X Receptor alpha genetics, Retinoid X Receptor alpha metabolism, Neurons physiology, Receptors, Dopamine D1 metabolism, Reward, Mice, Inbred C57BL, Cocaine pharmacology, Mental Disorders metabolism
- Abstract
The complex nature of the transcriptional networks underlying addictive behaviors suggests intricate cooperation between diverse gene regulation mechanisms that go beyond canonical activity-dependent pathways. Here, we implicate in this process a nuclear receptor transcription factor, retinoid X receptor alpha (RXRα), which we initially identified bioinformatically as associated with addiction-like behaviors. In the nucleus accumbens (NAc) of male and female mice, we show that although its own expression remains unaltered after cocaine exposure, RXRα controls plasticity- and addiction-relevant transcriptional programs in both dopamine receptor D1- and D2-expressing medium spiny neurons, which in turn modulate intrinsic excitability and synaptic activity of these NAc cell types. Behaviorally, bidirectional viral and pharmacological manipulation of RXRα regulates drug reward sensitivity in both non-operant and operant paradigms. Together, this study demonstrates a key role for NAc RXRα in promoting drug addiction and paves the way for future studies of rexinoid signaling in psychiatric disease states., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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30. Neurovascular adaptations modulating cognition, mood, and stress responses.
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Dion-Albert L, Dudek KA, Russo SJ, Campbell M, and Menard C
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- Humans, Cognition, Emotions, Aging, Blood-Brain Barrier, Brain, Brain Diseases
- Abstract
The neurovascular unit (NVU) is a dynamic center for substance exchange between the blood and the brain, making it an essential gatekeeper for central nervous system (CNS) homeostasis. Recent evidence supports a role for the NVU in modulating brain function and cognition. In addition, alterations in NVU processes are observed in response to stress, although the mechanisms via which they can affect mood and cognitive functions remain elusive. Here, we summarize recent studies of neurovascular regulation of emotional processes and cognitive function, including under stressful conditions. We also highlight relevant RNA-sequencing (RNA-seq) databases aiming to profile the NVU along with innovative tools to study and manipulate NVU function that can be exploited in the context of cognition and stress research throughout development, aging, or brain disorders., Competing Interests: Declaration of interests The authors declare no financial or competing interests., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2023
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31. Peripheral immune-derived matrix metalloproteinase promotes stress susceptibility.
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Cathomas F, Lin HY, Chan KL, Li L, Durand-de Cuttoli R, Parise LF, Aubry AV, Muhareb S, Desland F, Shimo Y, Ramakrishnan A, Estill M, Ferrer-Pérez C, Parise EM, Wang J, Sowa A, Janssen WG, Costi S, Rahman A, Fernandez N, Swirski FK, Nestler EJ, Shen L, Merad M, Murrough JW, and Russo SJ
- Abstract
Psychosocial stress has profound effects on the body, including the peripheral immune system and the brain
1,2 . Although a large number of pre-clinical and clinical studies have linked peripheral immune system alterations to stress-related disorders such as major depressive disorder (MDD)3,4,5 , the underlying mechanisms are not well understood. Here we show that a peripheral myeloid cell-specific proteinase, matrix metalloproteinase 8 (MMP8), is elevated in serum of subjects with MDD as well as in stress-susceptible (SUS) mice following chronic social defeat stress (CSDS). In mice, we show that this increase leads to alterations in extracellular space and neurophysiological changes in the nucleus accumbens (NAc), thereby altering social behaviour. Using a combination of mass cytometry and single-cell RNA-sequencing, we performed high-dimensional phenotyping of immune cells in circulation and brain and demonstrate that peripheral monocytes are strongly affected by stress. Both peripheral and brain-infiltrating monocytes of SUS mice showed increased Mmp8 expression following CSDS. We further demonstrate that peripheral MMP8 directly infiltrates the NAc parenchyma to control the ultrastructure of the extracellular space. Depleting MMP8 prevented stress-induced social avoidance behaviour and alterations in NAc neurophysiology and extracellular space. Collectively, these data establish a novel mechanism by which peripheral immune factors can affect central nervous system function and behaviour in the context of stress. Targeting specific peripheral immune cell-derived matrix metalloproteinases could constitute novel therapeutic targets for stress-related neuropsychiatric disorders.- Published
- 2023
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32. Social trauma engages lateral septum circuitry to occlude social reward.
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Li L, Durand-de Cuttoli R, Aubry AV, Burnett CJ, Cathomas F, Parise LF, Chan KL, Morel C, Yuan C, Shimo Y, Lin HY, Wang J, and Russo SJ
- Subjects
- Animals, Female, Male, Mice, Brain pathology, Brain physiopathology, Calcium analysis, Calcium metabolism, Mice, Inbred C57BL, Neurons metabolism, Neurotensin metabolism, Optogenetics, Neural Pathways, Psychological Trauma pathology, Psychological Trauma physiopathology, Reward, Septal Nuclei pathology, Septal Nuclei physiopathology, Social Behavior, Stress, Psychological pathology, Stress, Psychological physiopathology
- Abstract
In humans, traumatic social experiences can contribute to psychiatric disorders
1 . It is suggested that social trauma impairs brain reward function such that social behaviour is no longer rewarding, leading to severe social avoidance2,3 . In rodents, the chronic social defeat stress (CSDS) model has been used to understand the neurobiology underlying stress susceptibility versus resilience following social trauma, yet little is known regarding its impact on social reward4,5 . Here we show that, following CSDS, a subset of male and female mice, termed susceptible (SUS), avoid social interaction with non-aggressive, same-sex juvenile C57BL/6J mice and do not develop context-dependent social reward following encounters with them. Non-social stressors have no effect on social reward in either sex. Next, using whole-brain Fos mapping, in vivo Ca2+ imaging and whole-cell recordings, we identified a population of stress/threat-responsive lateral septum neurotensin (NTLS ) neurons that are activated by juvenile social interactions only in SUS mice, but not in resilient or unstressed control mice. Optogenetic or chemogenetic manipulation of NTLS neurons and their downstream connections modulates social interaction and social reward. Together, these data suggest that previously rewarding social targets are possibly perceived as social threats in SUS mice, resulting from hyperactive NTLS neurons that occlude social reward processing., (© 2022. The Author(s).)- Published
- 2023
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33. Distinct forms of regret linked to resilience versus susceptibility to stress are regulated by region-specific CREB function in mice.
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Durand-de Cuttoli R, Martínez-Rivera FJ, Li L, Minier-Toribio A, Holt LM, Cathomas F, Yasmin F, Elhassa SO, Shaikh JF, Ahmed S, Russo SJ, Nestler EJ, and Sweis BM
- Abstract
Regret describes recognizing alternative actions could have led to better outcomes. It remains unclear whether regret derives from generalized mistake appraisal or instead comprises dissociable, action-specific processes. Using a neuroeconomic task, we found that mice were sensitive to fundamentally distinct types of regret following exposure to chronic social defeat stress or manipulations of CREB, a transcription factor implicated in stress action. Bias to make compensatory decisions after rejecting high-value offers (regret type I) was unique to stress-susceptible mice. Bias following the converse operation, accepting low-value offers (regret type II), was enhanced in stress-resilient mice and absent in stress-susceptible mice. CREB function in either the prefrontal cortex or nucleus accumbens was required to suppress regret type I but bidirectionally regulated regret type II. We provide insight into how maladaptive stress response traits relate to distinct forms of counterfactual thinking, which could steer therapy for mood disorders, such as depression, toward circuit-specific computations through a careful description of decision narrative.
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- 2022
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34. Inflammation and emotion regulation: Findings from the MIDUS II study.
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Ospina LH, Beck-Felts K, Ifrah C, Lister A, Messer S, Russo SJ, Gross JJ, and Kimhy D
- Abstract
Emotion regulation (ER) strategies are thought to contribute to mental as well as physical health outcomes. Two common ER strategies include expressive suppression, or inhibition of emotional expression, and cognitive reappraisal, which involves changing how to think about an emotion-eliciting event in order to change its emotional impact. Recent reports have hypothesized that one potential way in which ER may be linked to health outcomes is via the immune system. However, information on this putative link is scarce. The present study aims to explore whether peripheral inflammatory biomarkers are associated with individual differences in ER-strategy use. Participants (n = 117) from the Midlife in the United States II (MIDUS II) study completed the Emotion Regulation Questionnaire (ERQ), and provided a blood sample for immune biomarker extraction including interleukin (IL)-6, IL-8, IL-10, tumor necrosis factor-α (TNF-α), C-reactive protein (CRP), E-selectin, Intercellular Adhesion Molecule-1 (ICAM-1), and fibrinogen. Results showed higher levels of expressive suppression were associated with decreased IL-10, TNF-α, and ICAM-1 levels (controlling for age, sex, BMI, total prescribed medications, and depressive symptoms). Consistent with these findings, hierarchical regression results identified TNF-α as a significant predictor of expressive suppression use. In contrast, no inflammatory markers were associated with predicted use of cognitive reappraisal. Our findings suggest a link between inflammation and specific ER-strategy use. Future research should consider the effects of pro-vs. anti-inflammatory cytokines on adaptive ER and subsequent mental and physical health., Competing Interests: All authors report no conflict of interests.
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- 2022
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35. Relationships among inflammation, social cognition, and social functioning in schizophrenia.
- Author
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Ospina LH, Beck-Felts K, Ifrah C, Shagalow S, Lister A, Russo SJ, Gross JJ, and Kimhy D
- Subjects
- Humans, Social Cognition, Social Interaction, Schizophrenic Psychology, Inflammation, Schizophrenia
- Abstract
Competing Interests: Declaration of competing interest On behalf of all authors, the corresponding author states that there is no conflict of interest.
- Published
- 2022
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36. Sex differences in appetitive and reactive aggression.
- Author
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Aubry AV, Joseph Burnett C, Goodwin NL, Li L, Navarrete J, Zhang Y, Tsai V, Durand-de Cuttoli R, Golden SA, and Russo SJ
- Subjects
- Animals, Female, Male, Mice, Reward, Self Administration, Social Behavior, Aggression, Sex Characteristics
- Abstract
Aggression is an evolutionarily conserved, adaptive component of social behavior. Studies in male mice illustrate that aggression is influenced by numerous factors including the degree to which an individual finds aggression rewarding and will work for access to attack and subordinate mice. While such studies have expanded our understanding of the molecular and circuit mechanisms of male aggression very little is known about female aggression, within these established contexts. Here we use an ethologically relevant model of male vs. female aggression by pair housing adult male and female outbred CFW mice with opposite sex cage mates. We assess reactive (defensive) aggression in the resident intruder (RI) test and appetitive (rewarding) aggression in the aggression conditioned place preference (CPP) and operant self-administration (SA) tests. Our results show dramatic sex differences in both qualitative and quantitative aspects of reactive vs. appetitive aggression. Males exhibit more wrestling and less investigative behavior during RI, find aggression rewarding, and will work for access to a subordinate to attack. Females exhibit more bites, alternate between aggressive behaviors and investigative behaviors more readily during RI, however, they do not find aggression to be rewarding or reinforcing. These results establish sex differences in aggression in mice, providing an important resource for the field to better understand the circuit and molecular mechanisms of aggression in both sexes., (© 2022. The Author(s), under exclusive licence to American College of Neuropsychopharmacology.)
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- 2022
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37. Exaggerated amygdala response to threat and association with immune hyperactivity in depression.
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Boukezzi S, Costi S, Shin LM, Kim-Schulze S, Cathomas F, Collins A, Russo SJ, Morris LS, and Murrough JW
- Abstract
Background: Depression is characterized by altered neurobiological responses to threat and inflammation may be involved in the development and maintenance of symptoms. However, the mechanistic pathways underlying the relationship between the neural underpinnings of threat, inflammation and depressive symptoms remain unknown., Methods: Twenty participants with major depressive disorder (MDD) and 17 healthy controls (HCs) completed this study. Peripheral blood mononuclear cells (PBMCs) were collected and stimulated ex vivo with lipopolysaccharide (LPS). We then measured a broad array of secreted proteins and performed principal component analysis to compute an aggregated immune reactivity score. Subjects completed a well-validated emotional face processing task during functional magnetic resonance imaging (fMRI). Amygdala activation was measured during perception of threat for the main contrast of interest: fear > happy face. Participants completed the Mood and Anxiety Symptom Questionnaire (MASQ) and the Perceived Stress Scale (PSS). Correlation analyses between amygdala activation, the aggregate immune score, and symptom were computed across groups. A mediation analysis was also performed across groups to further explore the relationship between these three variables., Results: In line with our hypotheses and with prior work, the MDD group showed greater amygdala activation in response to threat compared to the HC group [t
35 = -2.038, p = 0.049]. Internal consistency of amygdala activation to threat was found to be moderate. Response to an ex vivo immune challenge was greater in MDD than HC based on the computed immune reactivity score (PC1; t35 = 2.674, p = 0.011). Amygdala activation was positively correlated with the immune score (r = 0.331, p = 0.045). Moreover, higher amygdala activation was associated with greater anxious arousal measured by the MASQ (r = 0.390, p = 0.017). Exploring the role of stress, we found that higher perceived stress was positively associated with both inflammatory response (r = 0.367, p = 0.026) and amygdala response to threat (r = 0.325, p = 0.050). Mediation analyses showed that perceived stress predicted anxious arousal, but neither inflammation nor amygdala activation fully accounted for the effect of perceived stress on anxious arousal., Conclusion: These data highlight the potential importance of threat circuitry hyperactivation in MDD, consistent with prior reports. We found that higher levels of inflammatory biomarkers were associated with higher amygdala activation, which in turn was associated with anxious arousal. Future research utilizing larger sample sizes are needed to replicate these preliminary results., (Copyright © 2022 Elsevier Inc. All rights reserved.)- Published
- 2022
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38. Lateral habenula glutamatergic neurons projecting to the dorsal raphe nucleus promote aggressive arousal in mice.
- Author
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Takahashi A, Durand-de Cuttoli R, Flanigan ME, Hasegawa E, Tsunematsu T, Aleyasin H, Cherasse Y, Miya K, Okada T, Keino-Masu K, Mitsui K, Li L, Patel V, Blitzer RD, Lazarus M, Tanaka KF, Yamanaka A, Sakurai T, Ogawa S, and Russo SJ
- Subjects
- Aggression physiology, Animals, Arousal, Male, Mice, Neural Pathways physiology, Neurons metabolism, Dorsal Raphe Nucleus physiology, Habenula physiology
- Abstract
The dorsal raphe nucleus (DRN) is known to control aggressive behavior in mice. Here, we found that glutamatergic projections from the lateral habenula (LHb) to the DRN were activated in male mice that experienced pre-exposure to a rival male mouse ("social instigation") resulting in heightened intermale aggression. Both chemogenetic and optogenetic suppression of the LHb-DRN projection blocked heightened aggression after social instigation in male mice. In contrast, inhibition of this pathway did not affect basal levels of aggressive behavior, suggesting that the activity of the LHb-DRN projection is not necessary for the expression of species-typical aggressive behavior, but required for the increase of aggressive behavior resulting from social instigation. Anatomical analysis showed that LHb neurons synapse on non-serotonergic DRN neurons that project to the ventral tegmental area (VTA), and optogenetic activation of the DRN-VTA projection increased aggressive behaviors. Our results demonstrate that the LHb glutamatergic inputs to the DRN promote aggressive arousal induced by social instigation, which contributes to aggressive behavior by activating VTA-projecting non-serotonergic DRN neurons as one of its potential targets., (© 2022. The Author(s).)
- Published
- 2022
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39. Brain motor and fear circuits regulate leukocytes during acute stress.
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Poller WC, Downey J, Mooslechner AA, Khan N, Li L, Chan CT, McAlpine CS, Xu C, Kahles F, He S, Janssen H, Mindur JE, Singh S, Kiss MG, Alonso-Herranz L, Iwamoto Y, Kohler RH, Wong LP, Chetal K, Russo SJ, Sadreyev RI, Weissleder R, Nahrendorf M, Frenette PS, Divangahi M, and Swirski FK
- Subjects
- Animals, Bone Marrow Cells cytology, Bone Marrow Cells immunology, COVID-19 immunology, Chemokines immunology, Disease Susceptibility, Glucocorticoids metabolism, Humans, Lymphocytes cytology, Lymphocytes immunology, Lymphoid Tissue cytology, Lymphoid Tissue immunology, Mice, Monocytes cytology, Monocytes immunology, Neutrophils cytology, Neutrophils immunology, Optogenetics, Orthomyxoviridae Infections immunology, Paraventricular Hypothalamic Nucleus physiology, SARS-CoV-2 immunology, Brain cytology, Brain physiology, Fear physiology, Leukocytes cytology, Leukocytes immunology, Motor Neurons cytology, Motor Neurons physiology, Neural Pathways, Stress, Psychological immunology, Stress, Psychological physiopathology
- Abstract
The nervous and immune systems are intricately linked
1 . Although psychological stress is known to modulate immune function, mechanistic pathways linking stress networks in the brain to peripheral leukocytes remain poorly understood2 . Here we show that distinct brain regions shape leukocyte distribution and function throughout the body during acute stress in mice. Using optogenetics and chemogenetics, we demonstrate that motor circuits induce rapid neutrophil mobilization from the bone marrow to peripheral tissues through skeletal-muscle-derived neutrophil-attracting chemokines. Conversely, the paraventricular hypothalamus controls monocyte and lymphocyte egress from secondary lymphoid organs and blood to the bone marrow through direct, cell-intrinsic glucocorticoid signalling. These stress-induced, counter-directional, population-wide leukocyte shifts are associated with altered disease susceptibility. On the one hand, acute stress changes innate immunity by reprogramming neutrophils and directing their recruitment to sites of injury. On the other hand, corticotropin-releasing hormone neuron-mediated leukocyte shifts protect against the acquisition of autoimmunity, but impair immunity to SARS-CoV-2 and influenza infection. Collectively, these data show that distinct brain regions differentially and rapidly tailor the leukocyte landscape during psychological stress, therefore calibrating the ability of the immune system to respond to physical threats., (© 2022. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2022
- Full Text
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40. Neuromodulatory effect of interleukin 1β in the dorsal raphe nucleus on individual differences in aggression.
- Author
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Takahashi A, Aleyasin H, Stavarache MA, Li L, Cathomas F, Parise LF, Lin HY, Burnett CJ, Aubry A, Flanigan ME, Brancato A, Menard C, Pfau ML, Kana V, Wang J, Hodes GE, Sasaki T, Kaplitt MG, Ogawa S, McEwen BS, and Russo SJ
- Subjects
- Animals, Humans, Individuality, Male, Mice, Aggression physiology, Dorsal Raphe Nucleus metabolism, Interleukin-1beta metabolism, Serotonin metabolism
- Abstract
Heightened aggressive behavior is considered as one of the central symptoms of many neuropsychiatric disorders including autism, schizophrenia, and dementia. The consequences of aggression pose a heavy burden on patients and their families and clinicians. Unfortunately, we have limited treatment options for aggression and lack mechanistic insight into the causes of aggression needed to inform new efforts in drug discovery and development. Levels of proinflammatory cytokines in the periphery or cerebrospinal fluid were previously reported to correlate with aggressive traits in humans. However, it is still unknown whether cytokines affect brain circuits to modulate aggression. Here, we examined the functional role of interleukin 1β (IL-1β) in mediating individual differences in aggression using a resident-intruder mouse model. We found that nonaggressive mice exhibit higher levels of IL-1β in the dorsal raphe nucleus (DRN), the major source of forebrain serotonin (5-HT), compared to aggressive mice. We then examined the effect of pharmacological antagonism and viral-mediated gene knockdown of the receptors for IL-1 within the DRN and found that both treatments consistently increased aggressive behavior of male mice. Aggressive mice also exhibited higher c-Fos expression in 5-HT neurons in the DRN compared to nonaggressive mice. In line with these findings, deletion of IL-1 receptor in the DRN enhanced c-Fos expression in 5-HT neurons during aggressive encounters, suggesting that modulation of 5-HT neuronal activity by IL-1β signaling in the DRN controls expression of aggressive behavior., (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2022
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41. Beyond the neuron: Role of non-neuronal cells in stress disorders.
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Cathomas F, Holt LM, Parise EM, Liu J, Murrough JW, Casaccia P, Nestler EJ, and Russo SJ
- Subjects
- Brain, Humans, Mental Disorders, Neurons
- Abstract
Stress disorders are leading causes of disease burden in the U.S. and worldwide, yet available therapies are fully effective in less than half of all individuals with these disorders. Although to date, much of the focus has been on neuron-intrinsic mechanisms, emerging evidence suggests that chronic stress can affect a wide range of cell types in the brain and periphery, which are linked to maladaptive behavioral outcomes. Here, we synthesize emerging literature and discuss mechanisms of how non-neuronal cells in limbic regions of brain interface at synapses, the neurovascular unit, and other sites of intercellular communication to mediate the deleterious, or adaptive (i.e., pro-resilient), effects of chronic stress in rodent models and in human stress-related disorders. We believe that such an approach may one day allow us to adopt a holistic "whole body" approach to stress disorder research, which could lead to more precise diagnostic tests and personalized treatment strategies. Stress is a major risk factor for many psychiatric disorders. Cathomas et al. review new insight into how non-neuronal cells mediate the deleterious effects, as well as the adaptive, protective effects, of stress in rodent models and human stress-related disorders., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2022 Elsevier Inc. All rights reserved.)
- Published
- 2022
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- View/download PDF
42. Midbrain projection to the basolateral amygdala encodes anxiety-like but not depression-like behaviors.
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Morel C, Montgomery SE, Li L, Durand-de Cuttoli R, Teichman EM, Juarez B, Tzavaras N, Ku SM, Flanigan ME, Cai M, Walsh JJ, Russo SJ, Nestler EJ, Calipari ES, Friedman AK, and Han MH
- Subjects
- Animals, Anxiety, Anxiety Disorders, Dopaminergic Neurons metabolism, Mesencephalon, Mice, Stress, Psychological, Ventral Tegmental Area physiology, Basolateral Nuclear Complex
- Abstract
Anxiety disorders are complex diseases, and often co-occur with depression. It is as yet unclear if a common neural circuit controls anxiety-related behaviors in both anxiety-alone and comorbid conditions. Here, utilizing the chronic social defeat stress (CSDS) paradigm that induces singular or combined anxiety- and depressive-like phenotypes in mice, we show that a ventral tegmental area (VTA) dopamine circuit projecting to the basolateral amygdala (BLA) selectively controls anxiety- but not depression-like behaviors. Using circuit-dissecting ex vivo electrophysiology and in vivo fiber photometry approaches, we establish that expression of anxiety-like, but not depressive-like, phenotypes are negatively correlated with VTA → BLA dopamine neuron activity. Further, our optogenetic studies demonstrate a causal link between such neuronal activity and anxiety-like behaviors. Overall, these data establish a functional role for VTA → BLA dopamine neurons in bi-directionally controlling anxiety-related behaviors not only in anxiety-alone, but also in anxiety-depressive comorbid conditions in mice., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
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43. Whole blood transcriptional signatures associated with rapid antidepressant response to ketamine in patients with treatment resistant depression.
- Author
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Cathomas F, Bevilacqua L, Ramakrishnan A, Kronman H, Costi S, Schneider M, Chan KL, Li L, Nestler EJ, Shen L, Charney DS, Russo SJ, and Murrough JW
- Subjects
- Antidepressive Agents therapeutic use, Humans, Infusions, Intravenous, Depressive Disorder, Treatment-Resistant drug therapy, Depressive Disorder, Treatment-Resistant genetics, Ketamine therapeutic use
- Abstract
Ketamine has rapid and sustained antidepressant effects in patients with treatment-resistant depression (TRD). However, the underlying mechanisms of action are not well understood. There is increasing evidence that TRD is associated with a pro-inflammatory state and that ketamine may inhibit inflammatory processes. We thus investigated whole blood transcriptional profiles related to TRD and gene expression changes associated with treatment response to ketamine. Whole blood was collected at baseline (21 healthy controls [HC], 26 patients with TRD) and then again in patients with TRD 24 hours following a single intravenous infusion of ketamine (0.5 mg/kg). We performed RNA-sequencing and analyzed (a) baseline transcriptional profiles between patients with TRD and HC, (b) responders vs. non-responders before ketamine treatment, and (c) gene expression signatures associated with clinical improvement. At baseline, patients with TRD compared to HC showed a gene expression signature indicative of interferon signaling pathway activation. Prior to ketamine administration, the metabotropic glutamate receptor gene GRM2 and the ionotropic glutamate receptor gene GRIN2D were upregulated in responders compared to non-responders. Response to ketamine was associated with a distinct transcriptional signature, however, we did not observe gene expression changes indicative of an anti-inflammatory effect. Future studies are needed to determine the role of the peripheral immune system in the antidepressant effect of ketamine., (© 2021. The Author(s).)
- Published
- 2022
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44. Corrigendum to "Changes in motor function, cognition, and emotion-related behavior after right hemispheric intracerebral hemorrhage in various brain regions of mouse" [Brain Behav. Immun. 69 (2018) 568-581].
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Zhu W, Gao Y, Wan J, Lan X, Han X, Zhu S, Zang W, Chen X, Ziai W, Hanley DF, Russo SJ, Jorge RE, and Wang J
- Published
- 2022
- Full Text
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45. Peripheral immune cell reactivity and neural response to reward in patients with depression and anhedonia.
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Costi S, Morris LS, Collins A, Fernandez NF, Patel M, Xie H, Kim-Schulze S, Stern ER, Collins KA, Cathomas F, Parides MK, Whitton AE, Pizzagalli DA, Russo SJ, and Murrough JW
- Subjects
- Anhedonia, Depression, Humans, Magnetic Resonance Imaging, Reward, Leukocytes, Mononuclear, Ventral Striatum
- Abstract
Increased levels of peripheral cytokines have been previously associated with depression in preclinical and clinical research. Although the precise nature of peripheral immune dysfunction in depression remains unclear, evidence from animal studies points towards a dysregulated response of peripheral leukocytes as a risk factor for stress susceptibility. This study examined dynamic release of inflammatory blood factors from peripheral blood mononuclear cells (PBMC) in depressed patients and associations with neural and behavioral measures of reward processing. Thirty unmedicated patients meeting criteria for unipolar depressive disorder and 21 healthy control volunteers were enrolled. PBMCs were isolated from whole blood and stimulated ex vivo with lipopolysaccharide (LPS). Olink multiplex assay was used to analyze a large panel of inflammatory proteins. Participants completed functional magnetic resonance imaging with an incentive flanker task to probe neural responses to reward anticipation, as well as clinical measures of anhedonia and pleasure including the Temporal Experience of Pleasure Scale (TEPS) and the Snaith-Hamilton Pleasure Scale (SHAPS). LPS stimulation revealed larger increases in immune factors in depressed compared to healthy subjects using an aggregate immune score (t
49 = 2.83, p = 0.007). Higher peripheral immune score was associated with reduced neural responses to reward anticipation within the ventral striatum (VS) (r = -0.39, p = 0.01), and with reduced anticipation of pleasure as measured with the TEPS anticipatory sub-score (r = -0.318, p = 0.023). Our study provides new evidence suggesting that dynamic hyper-reactivity of peripheral leukocytes in depressed patients is associated with blunted activation of the brain reward system and lower subjective anticipation of pleasure., (© 2021. This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.)- Published
- 2021
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46. Heterogeneity in Human Induced Pluripotent Stem Cell-derived Alveolar Epithelial Type II Cells Revealed with ABCA3/SFTPC Reporters.
- Author
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Sun YL, Hurley K, Villacorta-Martin C, Huang J, Hinds A, Gopalan K, Caballero IS, Russo SJ, Kitzmiller JA, Whitsett JA, Beers MF, and Kotton DN
- Subjects
- Cell Differentiation physiology, Epithelial Cells metabolism, Humans, Lung metabolism, Pulmonary Surfactant-Associated Proteins metabolism, ATP-Binding Cassette Transporters metabolism, Alveolar Epithelial Cells cytology, Induced Pluripotent Stem Cells cytology, Pulmonary Alveoli cytology, Pulmonary Surfactant-Associated Protein C metabolism
- Abstract
Alveolar epithelial type 2 cells (AEC2s), the facultative progenitors of lung alveoli, are typically identified through the use of the canonical markers, SFTPC and ABCA3. Self-renewing AEC2-like cells have been generated from human induced pluripotent stem cells (iPSCs) through the use of knock-in SFTPC fluorochrome reporters. However, developmentally, SFTPC expression onset begins in the fetal distal lung bud tip and thus is not specific to mature AEC2s. Furthermore, SFTPC reporters appear to identify only those iPSC-derived AEC2s (iAEC2s) expressing the highest SFTPC levels. Here, we generate an ABCA3 knock-in GFP fusion reporter (ABCA3:GFP) that enables the purification of iAEC2s while allowing visualization of lamellar bodies, organelles associated with AEC2 maturation. Using an SFTPC
tdTomato and ABCA3:GFP bifluorescent line for in vitro distal lung-directed differentiation, we observe later onset of ABCA3:GFP expression and broader identification of the subsequently emerging iAEC2 population based on ABCA3:GFP expression compared with SFTPCtdTomato expression. Comparing ABCA3:GFP/SFTPCtdTomato double-positive with ABCA3:GFP single-positive (SP) cells by RNA sequencing and functional studies reveals iAEC2 cellular heterogeneity with both populations functionally processing surfactant proteins but the SP cells exhibiting faster growth kinetics, increased clonogenicity, increased expression of progenitor markers, lower levels of SFTPC expression, and lower levels of AEC2 maturation markers. Over time, we observe that each population (double-positive and SP) gives rise to the other and each can serve as the parents of indefinitely self-renewing iAEC2 progeny. Our results indicate that iAEC2s are a heterogeneous population of cells with differing proliferation versus maturation properties, the majority of which can be tracked and purified using the ABCA3:GFP reporter or surrogate cell surface proteins, such as SLC34A2 and CPM.- Published
- 2021
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47. Individual history of winning and hierarchy landscape influence stress susceptibility in mice.
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LeClair KB, Chan KL, Kaster MP, Parise LF, Burnett CJ, and Russo SJ
- Subjects
- Adaptation, Psychological, Animals, Behavior, Animal, Female, Male, Mice, Inbred C57BL, Psychological Distance, Social Dominance, Hierarchy, Social, Mice psychology, Stress, Psychological
- Abstract
Social hierarchy formation is strongly evolutionarily conserved. Across species, rank within social hierarchy has large effects on health and behavior. To investigate the relationship between social rank and stress susceptibility, we exposed ranked male and female mice to social and non-social stressors and manipulated social hierarchy position. We found that rank predicts same sex social stress outcomes: dominance in males and females confers resilience while subordination confers susceptibility. Pre-existing rank does not predict non-social stress outcomes in females and weakly does so in males, but rank emerging under stress conditions reveals social interaction deficits in male and female subordinates. Both history of winning and rank of cage mates affect stress susceptibility in males: rising to the top rank through high mobility confers resilience and mice that lose dominance lose stress resilience, although gaining dominance over a subordinate animal does not confer resilience. Overall, we have demonstrated a relationship between social status and stress susceptibility, particularly when taking into account individual history of winning and the overall hierarchy landscape in male and female mice., Competing Interests: KL, KC, MK, LP, CB, SR No competing interests declared, (© 2021, LeClair et al.)
- Published
- 2021
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48. Patient-specific iPSCs carrying an SFTPC mutation reveal the intrinsic alveolar epithelial dysfunction at the inception of interstitial lung disease.
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Alysandratos KD, Russo SJ, Petcherski A, Taddeo EP, Acín-Pérez R, Villacorta-Martin C, Jean JC, Mulugeta S, Rodriguez LR, Blum BC, Hekman RM, Hix OT, Minakin K, Vedaie M, Kook S, Tilston-Lunel AM, Varelas X, Wambach JA, Cole FS, Hamvas A, Young LR, Liesa M, Emili A, Guttentag SH, Shirihai OS, Beers MF, and Kotton DN
- Subjects
- Alveolar Epithelial Cells pathology, Animals, Cell Line, Cell Proliferation, Energy Metabolism, Genetic Predisposition to Disease, Humans, Induced Pluripotent Stem Cells pathology, Inflammation Mediators metabolism, Lung Diseases, Interstitial metabolism, Lung Diseases, Interstitial pathology, Mice, Knockout, Mutation, NF-kappa B metabolism, Phenotype, Proteostasis, Pulmonary Surfactant-Associated Protein C metabolism, Signal Transduction, Mice, Alveolar Epithelial Cells metabolism, Induced Pluripotent Stem Cells metabolism, Lung Diseases, Interstitial genetics, Pulmonary Surfactant-Associated Protein C genetics
- Abstract
Alveolar epithelial type 2 cell (AEC2) dysfunction is implicated in the pathogenesis of adult and pediatric interstitial lung disease (ILD), including idiopathic pulmonary fibrosis (IPF); however, identification of disease-initiating mechanisms has been impeded by inability to access primary AEC2s early on. Here, we present a human in vitro model permitting investigation of epithelial-intrinsic events culminating in AEC2 dysfunction, using patient-specific induced pluripotent stem cells (iPSCs) carrying an AEC2-exclusive disease-associated variant (SFTPC
I73T ). Comparing syngeneic mutant versus gene-corrected iPSCs after differentiation into AEC2s (iAEC2s), we find that mutant iAEC2s accumulate large amounts of misprocessed and mistrafficked pro-SFTPC protein, similar to in vivo changes, resulting in diminished AEC2 progenitor capacity, perturbed proteostasis, altered bioenergetic programs, time-dependent metabolic reprogramming, and nuclear factor κB (NF-κB) pathway activation. Treatment of SFTPCI73T -expressing iAEC2s with hydroxychloroquine, a medication used in pediatric ILD, aggravates the observed perturbations. Thus, iAEC2s provide a patient-specific preclinical platform for modeling the epithelial-intrinsic dysfunction at ILD inception., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Inc. All rights reserved.)- Published
- 2021
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49. Regulation of impulsive and aggressive behaviours by a novel lncRNA.
- Author
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Labonté B, Abdallah K, Maussion G, Yerko V, Yang J, Bittar T, Quessy F, Golden SA, Navarro L, Checknita D, Gigek C, Lopez JP, Neve RL, Russo SJ, Tremblay RE, Côté G, Meaney MJ, Mechawar N, Nestler EJ, and Turecki G
- Subjects
- Animals, Genotype, Humans, Mice, Monoamine Oxidase genetics, Aggression, Impulsive Behavior, RNA, Long Noncoding genetics, Suicide
- Abstract
High impulsive and aggressive traits associate with poor behavioural self-control. Despite their importance in predicting behavioural negative outcomes including suicide, the molecular mechanisms underlying the expression of impulsive and aggressive traits remain poorly understood. Here, we identified and characterized a novel long noncoding RNA (lncRNA), acting as a regulator of the monoamine oxidase A (MAOA) gene in the brain, and named it MAOA-associated lncRNA (MAALIN). Our results show that in the brain of suicide completers, MAALIN is regulated by a combination of epigenetic mechanisms including DNA methylation and chromatin modifications. Elevated MAALIN in the dentate gyrus of impulsive-aggressive suicides was associated with lower MAOA expression. Viral overexpression of MAALIN in neuroprogenitor cells decreased MAOA expression while CRISPR-mediated knock out resulted in elevated MAOA expression. Using viral-mediated gene transfer, we confirmed that MAALIN in the hippocampus significantly decreases MAOA expression and exacerbates the expression of impulsive-aggressive behavioural traits in CD1 aggressive mice. Overall, our findings suggest that variations in DNA methylation mediate the differential expression of a novel lncRNA that acts on MAOA expression to regulate impulsive-aggressive behaviours., (© 2020. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2021
- Full Text
- View/download PDF
50. Sperm Transcriptional State Associated with Paternal Transmission of Stress Phenotypes.
- Author
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Cunningham AM, Walker DM, Ramakrishnan A, Doyle MA, Bagot RC, Cates HM, Peña CJ, Issler O, Lardner CK, Browne C, Russo SJ, Shen L, and Nestler EJ
- Abstract
Paternal stress can induce long-lasting changes in germ cells potentially propagating heritable changes across generations. To date, no studies have investigated differences in transmission patterns between stress-resilient and stress-susceptible mice. We tested the hypothesis that transcriptional alterations in sperm during chronic social defeat stress (CSDS) transmit increased susceptibility to stress phenotypes to the next generation. We demonstrate differences in offspring from stressed fathers that depend on paternal category (resilient vs susceptible) and offspring sex. Importantly, artificial insemination (AI) reveals that sperm mediates some of the behavioral phenotypes seen in offspring. Using RNA-sequencing (RNA-seq), we report substantial and distinct changes in the transcriptomic profiles of sperm following CSDS in susceptible versus resilient fathers, with alterations in long noncoding RNAs (lncRNAs) predominating especially in susceptibility. Correlation analysis revealed that these alterations were accompanied by a loss of regulation of protein-coding genes by lncRNAs in sperm of susceptible males. We also identify several co-expression gene modules that are enriched in differentially expressed genes (DEGs) in sperm from either resilient or susceptible fathers. Taken together, these studies advance our understanding of intergenerational epigenetic transmission of behavioral experience. SIGNIFICANCE STATEMENT This manuscript contributes to the complex factors that influence the paternal transmission of stress phenotypes. By leveraging the segregation of males exposed to chronic social defeat stress (CSDS) into either resilient or susceptible categories we were able to identify the phenotypic differences in the paternal transmission of stress phenotypes across generations between the two lineages. Importantly, this work also alludes to the significance of both long noncoding RNAs (lncRNAs) and protein coding genes (PCGs) mediating the paternal transmission of stress. The knowledge gained from these data are of particular interest in understanding the risk for the development of psychiatric disorders such as anxiety and depression., (Copyright © 2021 the authors.)
- Published
- 2021
- Full Text
- View/download PDF
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