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    Claire Benard PhD

    TitleAssistant Professor
    InstitutionUniversity of Massachusetts Medical School
    DepartmentNeurobiology
    AddressUniversity of Massachusetts Medical School
    364 Plantation Street, LRB 721
    Worcester MA 01605
    Phone508-856-6484
      Other Positions
      InstitutionUMMS - Graduate School of Biomedical Sciences
      DepartmentInterdisciplinary Graduate Program

      InstitutionUMMS - Graduate School of Biomedical Sciences
      DepartmentNeuroscience

        Overview 
        Narrative

        Molecular mechanisms of nervous system maintenance and protection

        The long-term goal of our research is to identify mechanisms that keep the nervous system functioning throughout life and protect it from aging and neurodegenerative disorders. Neuronal structures established early in development need to persist throughout life for proper brain function. Yet physical stresses are exerted on the nervous system by body movements, increase in body size, and injury. Importantly, aging precipitates dramatic alterations in the physiology of all organisms, compromising cellular function, reducing resistance to stress, and increasing the likelihood of developing age-related diseases. Characteristic conditions are late-onset neurodegenerative disorders and cognitive decline. Remarkably, while physical stress and age are known to be strong determinants of these conditions, the molecular mechanisms leading to natural age-related and lesion-related neural deterioration are virtually unknown.

        In the lab we take a multidisciplinary approach that includes genetics, molecular biology, cell biology, biochemistry and confocal microscopy to elucidate the mechanisms that protect the architecture and function of the nervous system throughout life. We use the powerful model organism C. elegans, which has a strong track record of contributions to the fields of nervous system development and function, and of aging, to tease apart the molecular mechanisms underlying normal age-dependent brain decline and neuropathological conditions manifested during senescence and traumatic brain injury. Through our research, we have identified several proteins with roles dedicated to long-term neural protection, including a member of the conserved L1CAM family, SAX-7. Given that the development and function of the C. elegans nervous system has a high degree of evolutionary conservation with the mammalian brain, we expect that our research will ultimately provide crucial information to ameliorate the consequences of age-related cognitive decline, neurodegenerative diseases, and brain lesions.

         

        Claire Bénard received her Ph.D. (2003) from McGill University, Canada, supported by scholarships from NSERC and FCAR. She obtained postdoctoral fellowships from NSERC and CIHR for her training at Columbia University. She joined the Department of Neurobiology at the University of Massachusetts Medical School in 2009. Her lab is funded by the NIH and The Ellison Biomedical Foundation.

        UMASS News     http://www.umassmed.edu/news/research/2011/study_on_aging.aspx

        Podcast about our research recorded at the Boston Museum of Science in 2010:  http://www.mos.org/events_activities/podcasts&d=4484



        Rotation Projects

        Rotation Projects

        The Bénard lab studies how the nervous system is protected throughout the life of an animal. Neuronal structures established early in development need to persist throughout adulthood for proper brain function. We use the nematode C. elegans as a model system to elucidate the cellular and molecular bases of maintenance of neuronal architecture. Some neurodegenerative diseases for which the causes are unknown may result from postdevelopmental failures in these maintenance mechanisms.

        Rotation projects include the study of the genetic and biochemical interactions between maintenance factors that we have identified in the lab. Students will get training in genetics, molecular genetics and biochemical approaches and will use a range of molecular biology, cell culture, microscopy and genetic techniques. Contact Dr. Bénard to discuss specific interests and projects.



        Post Docs

        A postdoctoral position is available to train in this laboratory. Contact Dr. Bénard for additional details.



        Bibliographic 
        selected publications
        List All   |   Timeline
        1. Bénard CY, Blanchette C, Recio J, Hobert O. The secreted immunoglobulin domain proteins ZIG-5 and ZIG-8 cooperate with L1CAM/SAX-7 to maintain nervous system integrity. PLoS Genet. 2012; 8(7):e1002819.
          View in: PubMed
        2. Bénard C, Tjoe N, Boulin T, Recio J, Hobert O. The small, secreted immunoglobulin protein ZIG-3 maintains axon position in Caenorhabditis elegans. Genetics. 2009 Nov; 183(3):917-27.
          View in: PubMed
        3. Seitan VC, Banks P, Laval S, Majid NA, Dorsett D, Rana A, Smith J, Bateman A, Krpic S, Hostert A, Rollins RA, Erdjument-Bromage H, Tempst P, Benard CY, Hekimi S, Newbury SF, Strachan T. Metazoan Scc4 homologs link sister chromatid cohesion to cell and axon migration guidance. PLoS Biol. 2006 Jul; 4(8):e242.
          View in: PubMed
        4. Burgess J, Hihi AK, Benard CY, Branicky R, Hekimi S. Molecular mechanism of maternal rescue in the clk-1 mutants of Caenorhabditis elegans. J Biol Chem. 2003 Dec 5; 278(49):49555-62.
          View in: PubMed
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