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1. Arginase‐1+ bone marrow myeloid cells are reduced in myeloproliferative neoplasms and correlate with clinical phenotype, fibrosis, and molecular driver

Author

Arturo Bonometti, Oscar Borsani, Elisa Rumi, Virginia Valeria Ferretti, Claudia Dioli, Elena Lucato, Marco Paulli, and Emanuela Boveri

Subjects
CALR, immune microenvironment, MDSC, myelofibrosis, myeloproliferative neoplasms, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Introduction Philadelphia‐negative myeloproliferative neoplasms (MPN) are clonal myeloid proliferative disorders characterized by sustained systemic inflammation. Despite its renowned importance, the knowledge concerning the inflammatory pathophysiology of these conditions is currently limited to studies on serum cytokines, while cellular immunity has rarely been investigated. Methods In the present study, we targeted Arginase‐1 immunosuppressive myeloid cells in the bone marrow of MPN patients and healthy controls and investigated their clinical and prognostic significance. We demonstrated that MPN are characterized by a significant reduction of bone marrow immunosuppressive cells and that the number of these cells significantly correlates with several clinical and histopathological features of diagnostic and prognostic importance. Moreover, we identified an unreported correlation between a reduction of Arginase‐1+ bone marrow cells and the presence of CALR mutations, linking tumor‐promoting immunity and molecular drivers. Finally, we postulate that the reduction of bone marrow Arginase‐1+ immunosuppressive cells may be due to the migration of these cells to the spleen, where they may exert systemic immunomodulatory function. Conclusion Altogether, this study preliminary investigated the contribution of cellular immunity in the pathogenesis of myeloproliferative neoplasms and identified a possible interesting therapeutic target as well as a set of new links that may contribute to unraveling the biological mechanisms behind these interesting hematological neoplasms.

Published
2023
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5. O5‐10‐05: NOVEL INSIGHTS OF TAU RNA‐PROTEIN BIOLOGY IN THE PRECIPITATING ROLE OF CHRONIC STRESS ON ALZHEIMER'S DISEASE BRAIN PATHOLOGY

Author

Akihiko Takashima, Benjamin Wolozin, Sara Rodrigues, Chrysoula Dioli, Joana Silva, Nuno Sousa, Ioannis Sotiropoulos, Patrícia Gomes, and Carina Soares-Cunha

Subjects
Psychiatry and Mental health, Cellular and Molecular Neuroscience, Rna protein, Developmental Neuroscience, Epidemiology, Health Policy, Chronic stress, Neurology (clinical), Disease, Geriatrics and Gerontology, Biology, Bioinformatics
Published
2019

6. P1-187: NEURONAL SORTING AND DEGRADATION OF TAU BY THE ENDOLYSOSOMAL PATHWAY AND RAB35 IN HIPPOCAMPAL PATHOLOGY

Author

Sotiropoulos, Ioannis, primary, Vaz-SIlva, Joao, additional, Gomes, Patricia, additional, Zhu, Mei, additional, Jin, Qi, additional, Zhuravleva, Viktoriya, additional, Silva, Joana, additional, Dioli, Chrysoula, additional, Soares-Cunha, Carina, additional, Daskalakis, Nikolaos, additional, Sousa, Nuno, additional, and Waites, Clarissa, additional

Published
2019
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8. [P4–101]: TAU‐DEPENDENT SUPPRESSION OF ADULT NEUROGENESIS IN THE STRESSED HIPPOCAMPUS

Author

Patrícia Patrício, Ioannis Sotiropoulos, Sheela Vyas, João Bessa, Chrysoula Dioli, and Luísa Pinto

Subjects
Psychiatry and Mental health, Cellular and Molecular Neuroscience, Developmental Neuroscience, Epidemiology, Health Policy, Neurogenesis, Hippocampus, Neurology (clinical), Geriatrics and Gerontology, Biology, Neuroscience
Published
2017

9. P1-187: NEURONAL SORTING AND DEGRADATION OF TAU BY THE ENDOLYSOSOMAL PATHWAY AND RAB35 IN HIPPOCAMPAL PATHOLOGY

Author

Chrysoula Dioli, Joao Vaz-Silva, Ioannis Sotiropoulos, Mei Zhu, Nuno Sousa, Qi Jin, Nikolaos P. Daskalakis, Clarissa L. Waites, Joana Silva, Viktoriya Zhuravleva, Patrícia Gomes, and Carina Soares-Cunha

Subjects
0303 health sciences, Epidemiology, Chemistry, Health Policy, Sorting, Hippocampal formation, Cell biology, 03 medical and health sciences, Psychiatry and Mental health, Cellular and Molecular Neuroscience, 0302 clinical medicine, Developmental Neuroscience, Neurology (clinical), Geriatrics and Gerontology, 030217 neurology & neurosurgery, 030304 developmental biology, Degradation (telecommunications)
Published
2019

10. Patterns and drivers of species diversity in the Indo‐Pacific red seaweed Portieria

Author

Leliaert, Frederik, primary, Payo, Dioli Ann, additional, Gurgel, Carlos Frederico D., additional, Schils, Tom, additional, Draisma, Stefano G. A., additional, Saunders, Gary W., additional, Kamiya, Mitsunobu, additional, Sherwood, Alison R., additional, Lin, Showe‐Mei, additional, Huisman, John M., additional, Le Gall, Line, additional, Anderson, Robert J., additional, Bolton, John J., additional, Mattio, Lydiane, additional, Zubia, Mayalen, additional, Spokes, Tracey, additional, Vieira, Christophe, additional, Payri, Claude E., additional, Coppejans, Eric, additional, D'hondt, Sofie, additional, Verbruggen, Heroen, additional, and De Clerck, Olivier, additional

Published
2018
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11. O4‐03‐02: Ablation of Tau Prevents Stress‐Induced Dendritic and Synaptic Atrophy in Prefrontal Cortex: The Role of Synaptic Mitochondria

Author

Joao Vaz-Silva, Nuno Sousa, Chrysoula Dioli, Michaela D. Filiou, Larysa Teplytska, Christoph W. Turck, Ioannis Sotiropoulos, Christian Webhofer, Sofia Oliveira Lopes, Osborne F. X. Almeida, and M. Morais

Subjects
0303 health sciences, Epidemiology, Chemistry, Health Policy, medicine.medical_treatment, Stress induced, Mitochondrion, medicine.disease, Ablation, 03 medical and health sciences, Psychiatry and Mental health, Cellular and Molecular Neuroscience, 0302 clinical medicine, Atrophy, Synaptic fatigue, Developmental Neuroscience, Synaptic augmentation, Synaptic plasticity, medicine, Neurology (clinical), Geriatrics and Gerontology, Prefrontal cortex, Neuroscience, 030217 neurology & neurosurgery, 030304 developmental biology
Published
2016

13. A REVISED CLASSIFICATION OF THE DICTYOTEAE (DICTYOTALES, PHAEOPHYCEAE) BASED ON rbc L AND 26S RIBOSOMAL DNA SEQUENCE ANALYSES 1

Author

Frederik Leliaert, Joel Campos De Paula, Christopher E. Lane, Heroen Verbruggen, Olivier De Clerck, Eric Coppejans, and Dioli Ann Payo

Subjects
Systematics, Monophyly, Genus, Molecular phylogenetics, Botany, Dictyotales, Plant Science, Aquatic Science, Biology, Clade, Tribe (biology), biology.organism_classification, Ribosomal DNA
Abstract

Dictyota is a genus of tropical to warm temperate brown algae characterized by parenchymatous, flattened thalli that grow from a single, transversely oriented apical cell. Dictyota is currently distinguished from allied genera of the tribe Dictyoteae (Dilophus, Glossophora, Glossophorella, and Pachydictyon) by the structure of the cortical and medullary layers, as well as the relative abundance of surface proliferations. Even though the traditional classification of the Dictyoteae has repeatedly been criticized in the past, the absence of sound molecular data has so far discouraged any new taxonomic proposals apart from a merger of Dilophus with Dictyota, which has been accepted by only part of the phycological community. Phylogenetic analysis of rbcL gene, partial 26S rDNA sequence, and combined data sets, including four of five generitypes, demonstrates that the traditional classification does not accurately reflect the evolutionary history of the group. None of the genera are resolved as a monophyletic clade. Hence, a merger of Glossophora, Glossophorella, and Pachydictyon in Dictyota is proposed. Two new genera, Canistrocarpus (incorporating D. cervicornis, D. crispata, and D. magneana) and Rugulopteryx (accommodating D. radicans, Dil. suhrii, and Dil. marginata), are proposed. Both genera are supported by molecular indications and a combination of reproductive and vegetative characters. The position of Dil. fastigiatus as a clade sister to Dictyota s.1. and the absence of Dil. gunnianus, the generitype of Dilophus, from the analyses, prevented us from making a more definite statement on the status of the latter genus.

Published
2006

14. O4‐03‐02: Ablation of Tau Prevents Stress‐Induced Dendritic and Synaptic Atrophy in Prefrontal Cortex: The Role of Synaptic Mitochondria.

Author

Sotiropoulos, Ioannis, primary, Lopes, Sofia, additional, Teplytska, Larysa, additional, Vaz-Silva, Joao, additional, Dioli, Chrysoula, additional, Morais, Monica, additional, Webhofer, Christian, additional, Almeida, Osborne F.X., additional, Turck, Christoph, additional, Sousa, Nuno, additional, and Filiou, Michaela, additional

Published
2016
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15. Notes on the morphology of the horns of a new artiodactyl mammal from Cambodia: Pseudonovibos spiralis

Author

Maurizio Dioli

Subjects
Pseudonovibos spiralis, Zoology, Animal Science and Zoology, Mammal, Morphology (biology), Biology, Ecology, Evolution, Behavior and Systematics
Abstract

A new species of bovid was discovered recently in Vietnam and Cambodia. At present, only the horns have been collected. A general description of the animal has been given by local hunters. The animal has been known since 1929 but was wrongly classified as an immature female kouprey (Box sauveli). Information gathered so far is incomplete but the bovid has been named Pseudonovibos spiralis, Peter Feiler, 1994a.

Published
1997

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