Pathophysiology of parkinsonian syndromes
AROTCARENA Marie-Laure (PhD student) BERTIN Eléonore (engineering assistant) BEZARD Erwan (researcher) BOUE-GRABOT Eric (researcher) BOURRE François (researcher) CANRON Marie-Hélène ( engineering assistant) CUNHA Anthony (PhD student) DEHAY Benjamin (researcher) DELAMARRE Anna (PhD student) DOVERO Sandra (engineer) DOUDNIKOFF Marie-Evelyne (engineering assistant) DUVEAU Alexia (PhD student) ESTAGER Alain (technical assistant) FAGGIANI Emilie (post-doctoral researcher) LAFERRIERE Florent (post-doctoral researcher) MARTIN-NEGRIER Marie-Laure (physician/researcher) MARTINEZ Audrey (engineering assistant) MASSE Karine (MCU) MEISSNER Wassilios (physician/researcher) PERSILLET Marine (PhD student) PLANCHE Vincent (CCA-R) THIOLAT Marie-Laure (technician) TEIL Margaux (PhD student) TISON François (physician/researcher) _________________________________ Branche clinique : AUZOU Nicolas (psychologist) BLARD Fabrice (ARC) BONNET Marie (psychologist) BORAUD Thomas (researcher) DUPOUY Sandrine (ARC) FOUBERT-SAMIER Alexandra (CCA) LAURENS Brice (CCA) MEISSNER Wassilios (physician/researcher) PLANCHE Vincent (CCA-R) TISON François (physician/researcher) VERGNET Sylvain (CCA) VILLARS Sandrine (bioexpert)
For any further information, please contact Dr Erwan Bézard.
Our goal is to understand molecular and cellular mechanisms responsible for motor and non-motor symptoms in Parkinson’s disease and atypical parkinsonism as well as the disturbed response to L-dopa. Our goal is thus to identify novel therapeutic targets on the ground of pathophysiological studies in experimental models (ranging from cell culture to non-human primate) as well as in man.
The cell death mechanisms and the pathological response to dopamine replacement therapies in parkinsonian syndromes are at the center of our research work. I close connection with the University Hospital of Bordeaux, we develop a translational research in the field of neurodegenerative disorders, oriented towards disease management and medical applications.
The research activities of the team evolve around the following axes :
- Mechanisms of cell death in parkinsonian syndromes
Parkinson’s disease is characterized by a progressive accumulation and propagation of a-synuclein likely responsible for their subsequent death. Our objective is to understand these mechanisms for then proposing adapted therapeutic approaches.
- Decrypting brain pathophysiology using innovative optical nanoprobes
Understanding the role of the extracellular space (ECS) in modulating neuronal communication represents a knowledge frontier in current brain research. We aim to decrypt the intimate interplay between extracellular space and receptors in shaping neuronal network (dys)function. To reach our goal we use innovative multidisciplinary approaches based on new optical nanoimaging reporters and tailored methodologies for manipulating brain functions in state-of-the-art Alzheimer’s disease and Parkinson’s disease models.
- Pathophysiology of L-dopa-induced dyskinesia
Our 15 years of work now culminate with a series of clinical trials testing the efficacy of pharmacological and non-pharmacological approaches upon dyskinesia severity.
- Purinergic signalling in the central nervous system
Our overall goal is to better understand the regulation and function of ATP signaling in the central nervous system. We will determine the spatiotemporal profile of ATP actions as well as the profile of expression of purine receptor during both neurogenesis and in pathological states.
- Modelling prion-like dissemination of synucleinopathies and tauopathies in nervous system in Parkinsonian syndromes and dementias.
- Study of targeting autophagy as a potential cure of Parkinson’s disease.
- Study of key mechanisms contributing to α-synuclein accumulation to counteract Parkinson’s disease and Multiple System Atrophy progression.
- Improvement of transgenesis approaches in neurodegenerative diseases modelling.
- Study of the role of extracellular space in neuronal communication.
Criteria : Author : "Bezard", Laboratoire(Affiliation) : "UMR5293", Publication type : "('ART')"
Number of occurrences founded : 190.
- Synucleinopathy alters nanoscale organization and diffusion in the brain extracellular space through hyaluronan remodeling
- Federico Soria, Chiara Paviolo, Evelyne Doudnikoff, Marie-Laure Arotcarena, Antony Lee, Noémie Danné, Amit Kumar Mandal, Philippe Gosset, Benjamin Dehay, Laurent Groc, Laurent Cognet, Erwan Bézard
- Nature Communications, Nature Publishing Group, 2020, 11 (1), pp.3440. ⟨10.1038/s41467-020-17328-9⟩
- Evidence for the spread of human-derived mutant huntingtin protein in mice and non-human primates
- Philippe Gosset, Alexander Maxan, Melanie Alpaugh, Ludivine Breger, Benjamin Dehay, Zhu Tao, Zhang Ling, Chuan Qin, Giulia Cisbani, Nadia Fortin, Jean-Paul Vonsattel, Steve Lacroix, Abid Oueslati, Erwan Bezard, Francesca Cicchetti
- Neurobiology of Disease, Elsevier, 2020, 141, pp.104941. ⟨10.1016/j.nbd.2020.104941⟩
- Identification of distinct pathological signatures induced by patient-derived $α$-synuclein structures in nonhuman primates
- Mathieu Bourdenx, Aurélien Nioche, Sandra Dovero, Marie-Laure Arotcarena, Sandrine Camus, Gregory Porras, Marie-Laure Thiolat, Nicolas P. Rougier, Alice Prigent, Philippe Aubert, Sylvain Bohic, Christophe Sandt, Florent Laferrière, Evelyne Doudnikoff, Niels Kruse, Brit Mollenhauer, Salvatore Novello, Michele Morari, Thierry Leste-Lasserre, Ines Trigo Damas, Michel Goillandeau, Celine Perier, Cristina Estrada, Nuria García Carrillo, Ariadna Recasens, Nishant Narayanan Vaikath, Omar El Agnaf, Maria Trinidad Herrero, Pascal Derkinderen, Miquel Vila, Jose A Obeso, Benjamin Dehay, Erwan Bezard
- Science Advances , American Association for the Advancement of Science (AAAS), 2020, 6 (20), pp.eaaz9165. ⟨10.1126/sciadv.aaz9165⟩
- Bidirectional gut-to-brain and brain-to-gut propagation of synucleinopathy in non-human primates
- Marie-Laure Arotcarena, Sandra Dovero, Alice Prigent, Mathieu Bourdenx, Sandrine Camus, Gregory Porras, Marie-Laure Thiolat, Maddalena Tasselli, Philippe Aubert, Niels Kruse, Brit Mollenhauer, Ines Trigo Damas, Cristina Estrada, Nuria Garcia-Carrillo, Nishant Vaikath, Omar El-Agnaf, Maria Trinidad Herrero, Miquel Vila, José Obeso, Pascal Derkinderen, Benjamin Dehay, Erwan Bezard
- Brain - A Journal of Neurology , Oxford University Press (OUP), 2020, pp.awaa096. ⟨10.1093/brain/awaa096⟩
- Use of adeno-associated virus-mediated delivery of mutant huntingtin to study the spreading capacity of the protein in mice and non-human primates
- Alexander Maxan, Giacomo Sciacca, Melanie Alpaugh, Zhu Tao, Ludivine Breger, Benjamin Dehay, Zhang Ling, Chuan Qin, Giulia Cisbani, Maria Masnata, Shireen Salem, Steve Lacroix, Abid Oueslati, Erwan Bezard, Francesca Cicchetti
- Neurobiology of Disease, Elsevier, 2020, pp.104951. ⟨10.1016/j.nbd.2020.104951⟩