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1. Therapeutic potential of extracellular vesicles derived from cardiac progenitor cells in rodent models of chemotherapy-induced cardiomyopathy

Author

Manon Desgres, Bruna Lima Correa, Lorena Petrusca, Gwennhael Autret, Chloé Pezzana, Céline Marigny, Chloé Guillas, Valérie Bellamy, José Vilar, Marie-Cécile Perier, Florent Dingli, Damarys Loew, Camille Humbert, Jérôme Larghero, Guillaume Churlaud, Nisa Renault, Pierre Croisille, Albert Hagège, Jean-Sébastien Silvestre, and Philippe Menasché

Subjects
cardiovascular progenitor, extracellular vesicles, chemotherapy-induced cardiomyopathy, cardiac strain, cardio-oncology, regenerative medicine, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

BackgroundCurrent treatments of chemotherapy-induced cardiomyopathy (CCM) are of limited efficacy. We assessed whether repeated intravenous injections of human extracellular vesicles from cardiac progenitor cells (EV-CPC) could represent a new therapeutic option and whether EV manufacturing according to a Good Manufacturing Practices (GMP)-compatible process did not impair their bioactivity.MethodsImmuno-competent mice received intra-peritoneal injections (IP) of doxorubicin (DOX) (4 mg/kg each; cumulative dose: 12 mg/kg) and were then intravenously (IV) injected three times with EV-CPC (total dose: 30 billion). Cardiac function was assessed 9–11 weeks later by cardiac magnetic resonance imaging (CMR) using strain as the primary end point. Then, immuno-competent rats received 5 IP injections of DOX (3 mg/kg each; cumulative dose 15 mg/kg) followed by 3 equal IV injections of GMP-EV (total dose: 100 billion). Cardiac function was assessed by two dimensional-echocardiography.ResultsIn the chronic mouse model of CCM, DOX + placebo-injected hearts incurred a significant decline in basal (global, epi- and endocardial) circumferential strain compared with sham DOX-untreated mice (p = 0.043, p = 0.042, p = 0.048 respectively) while EV-CPC preserved these indices. Global longitudinal strain followed a similar pattern. In the rat model, IV injections of GMP-EV also preserved left ventricular end-systolic and end-diastolic volumes compared with untreated controls.ConclusionsIntravenously-injected extracellular vesicles derived from CPC have cardio-protective effects which may make them an attractive user-friendly option for the treatment of CCM.

Published
2023
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2. Mutations in GREB1L Cause Bilateral Kidney Agenesis in Humans and Mice

Author

Bertrand Isidor, Christelle Arrondel, Camille Humbert, Flora Silbermann, Marie-Hélène Said-Menthon, Cécile Jeanpierre, Christelle Cabrol, Audrey Desgrange, Frédéric Tores, Laurence Heidet, Lara De Tomasi, Ishwar C. Verma, Marie-Pierre Cordier, Ratna Dua Puri, Laurent Gavard, Jelena Martinovic, Christine Pietrement, Juliette Piard, Olivier Niel, Marie Gonzales, Patrick Nitschke, Robert Novo, Stéphane Fouquet, Joelle Roume, Philippe Khau Van Kien, Jacqueline Aziza, Pierre David, Sophie Saunier, Marie-Hélène Saint-Frison, Hubert Journel, Christine Bole-Feysot, The molecular basis of kidney diseases: cystinosis and hereditary nephrotic syndrome (Equipe Inserm U1163), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris Diderot - Paris 7 (UPD7), Structure Fédérative de Recherche Necker (SFR Necker - UMS 3633 / US24), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Institut de la Vision, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Coordination des Cellules et Morphogenèse / Heart Morphogenesis (Imagine - Institut Pasteur U1163), Institut Pasteur [Paris] (IP)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris Descartes - Paris 5 (UPD5), Hôpital Robert Debré Paris, Hôpital Robert Debré, CHI Poissy-Saint-Germain, Centre Hospitalier Universitaire de Reims (CHU Reims), Centre hospitalier universitaire de Nantes (CHU Nantes), Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Laboratoire Histologie Embryologie Cytogénétique [CHU Necker], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), AP-HP - Hôpital Antoine Béclère [Clamart], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Lille, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), and Sir Ganga Ram Hospital [New Delhi, India]

Subjects
0301 basic medicine, Male, nephrogenesis, 030105 genetics & heredity, Kidney, Mice, Missense mutation, Exome, Child, Urinary Tract, Genetics (clinical), Exome sequencing, kidney development, Mice, Knockout, kidney agenesis, heart defect, tubulogenesis, Hypoplasia, Neoplasm Proteins, medicine.anatomical_structure, Phenotype, Agenesis, Female, Kidney Diseases, medicine.medical_specialty, Heterozygote, Urinary system, mouse model, Biology, Congenital Abnormalities, 03 medical and health sciences, Fetus, Internal medicine, Report, Genetics, medicine, Animals, Humans, Renal agenesis, CAKUT, Membrane Proteins, Proteins, genital tract, [SDV.BDD.MOR]Life Sciences [q-bio]/Development Biology/Morphogenesis, medicine.disease, 3DISCO, GREB1L, Mice, Inbred C57BL, 030104 developmental biology, Endocrinology, Urogenital Abnormalities, Mutation, Kidney disease
Abstract

International audience; Congenital anomalies of the kidney and urinary tract (CAKUT) constitute a major cause of chronic kidney disease in children and 20% of prenatally detected anomalies. CAKUT encompass a spectrum of developmental kidney defects, including renal agenesis, hypoplasia, and cystic and non-cystic dysplasia. More than 50 genes have been reported as mutated in CAKUT-affected case subjects. However, the pathophysiological mechanisms leading to bilateral kidney agenesis (BKA) remain largely elusive. Whole-exome or targeted exome sequencing of 183 unrelated familial and/or severe CAKUT-affected case subjects, including 54 fetuses with BKA, led to the identification of 16 heterozygous variants in GREB1L (growth regulation by estrogen in breast cancer 1-like), a gene reported as a target of retinoic acid signaling. Four loss-of-function and 12 damaging missense variants, 14 being absent from GnomAD, were identified. Twelve of them were present in familial or simplex BKA-affected case subjects. Female BKA-affected fetuses also displayed uterus agenesis. We demonstrated a significant association between GREB1L variants and BKA. By in situ hybridization, we showed expression of Greb1l in the nephrogenic zone in developing mouse kidney. We generated a Greb1l knock-out mouse model by CRISPR-Cas9. Analysis at E13.5 revealed lack of kidneys and genital tract anomalies in male and female Greb1l-/- embryos and a slight decrease in ureteric bud branching in Greb1l+/- embryos. We showed that Greb1l invalidation in mIMCD3 cells affected tubulomorphogenesis in 3D-collagen culture, a phenotype rescued by expression of the wild-type human protein. This demonstrates that GREB1L plays a major role in early metanephros and genital development in mice and humans.

Published
2017

3. Integrin Alpha 8 Recessive Mutations Are Responsible for Bilateral Renal Agenesis in Humans

Author

Philippe Khau Van Kien, Flora Silbermann, Cécile Jeanpierre, Bharti Morar, Alexandre Benmerah, Camille Humbert, Rémi Salomon, Marie-José Perez, Luba Kalaydjieva, Mohammed Zarhrate, Cécile Masson, Patricia Blanchet, Corinne Antignac, Joelle Roume, Brigitte Leroy, Laurence Heidet, Sophie Saunier, Yuliya Petrov, Frédéric Tores, Olivier Gribouval, Mélanie Parisot, Benmerah, Alexandre, Néphropathies héréditaires et rein en développement (UMR_S 983), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Imagine - Institut des maladies génétiques (IHU) (Imagine - U1163), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), The University of Western Australia (UWA), Hôpital Arnaud de Villeneuve [CHRU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre hospitalier intercommunal de Poissy/Saint-Germain-en-Laye - CHIPS [Poissy], and Centre de Référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte [CHU-Necker] (MARHEA)

Subjects
Male, Pathology, 030232 urology & nephrology, Kidney development, [SDV.GEN] Life Sciences [q-bio]/Genetics, Kidney, medicine.disease_cause, [SDV.MHEP.UN]Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, 0302 clinical medicine, Genetics(clinical), [SDV.BDD]Life Sciences [q-bio]/Development Biology, Genetics (clinical), Genetics, 0303 health sciences, Mutation, Homozygote, Hypoplasia, Pedigree, 3. Good health, Bilateral Renal Agenesis, medicine.anatomical_structure, Female, Kidney Diseases, Erratum, Integrin alpha Chains, medicine.medical_specialty, Genes, Recessive, [SDV.BC]Life Sciences [q-bio]/Cellular Biology, Congenital Abnormalities, 03 medical and health sciences, Fetus, Report, [SDV.BDD] Life Sciences [q-bio]/Development Biology, medicine, Humans, [SDV.BC] Life Sciences [q-bio]/Cellular Biology, Renal agenesis, Gene, 030304 developmental biology, [SDV.GEN]Life Sciences [q-bio]/Genetics, business.industry, medicine.disease, [SDV.MHEP.UN] Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, Dysplasia, Urogenital Abnormalities, business, 030217 neurology & neurosurgery
Abstract

International audience; Renal hypodysplasia (RHD) is a heterogeneous condition encompassing a spectrum of kidney development defects including renal agenesis, hypoplasia, and (cystic) dysplasia. Heterozygous mutations of several genes have been identified as genetic causes of RHD with various severity. However, these genes and mutations are not associated with bilateral renal agenesis, except for RET mutations, which could be involved in a few cases. The pathophysiological mechanisms leading to total absence of kidney development thus remain largely elusive. By using a whole-exome sequencing approach in families with several fetuses with bilateral renal agenesis, we identified recessive mutations in the integrin α8-encoding gene ITGA8 in two families. Itga8 homozygous knockout in mice is known to result in absence of kidney development. We provide evidence of a damaging effect of the human ITGA8 mutations. These results demonstrate that mutations of ITGA8 are a genetic cause of bilateral renal agenesis and that, at least in some cases, bilateral renal agenesis is an autosomal-recessive disease.

Published
2014
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