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  3. Guoping Feng
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Feng
Guoping
Ph.D.
James W (1963) & Patricia T Poitras Prof.
Brain & Cognitive Sciences
Associate Director and Investigator
McGovern Institute for Brain Research
Institute Member
Broad Institute of MIT and Harvard
Faculty Appointment
Primary
Building
46-3143A
Email
fengg@mit.edu
Phone
6177154898
Lab website
    About

    Guoping Feng is the Poitras Professor of Neuroscience in the McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology. He is also the Director of Model Systems and Neurobiology at the Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard. Dr. Feng’s research is devoted to understanding molecular mechanisms regulating neuron-neuron communications in the brain and how defects in neuronal communication contribute to psychiatric disorders. Using genetically engineered animal models, Dr. Feng’s laboratory combines cutting-edge technologies and multidisciplinary approaches to unravel the neurobiological mechanisms of autism, OCD and schizophrenia. Dr. Feng has won numerous awards for his scientific achievements including Beckman Young Investigator Award, Gill Young Investigator Award, McKnight Neuroscience of Brain Disorders Award, McKnight Technology Innovation Award, and Hartwell Individual Biomedical Research Award. Dr. Feng studied medicine at Zhejiang University School of Medicine in Hangzhou, China. He obtained his PhD from the State University of New York at Buffalo and postdoctoral training at Washington University in St. Louis. Prior to joining the faculty at MIT, he was a faculty member in the Department of Neurobiology, Duke University School of Medicine.

    Research

    Molecular Mechanisms of Synaptic and Circuitry Development and Psychiatric Disorders

    Synapses are fundamental units of neuronal connectivity in the brain. It is at these specialized cell junctions that neurons communicate with one another. Many neuroscientists now look to the synapse for principles of learning and memory, for processes underlying behavior, and for pathological mechanisms of various neurological and psychiatric disorders. Our long-term goal is to understand the mechanisms regulating the development and function of synapses and to probe the roles of synaptic and circuitry dysfunction in certain abnormal behaviors and their relevance to psychiatric disorders. There are currently three major aspects of research in the lab.

    First, we are interested in the molecular mechanisms regulating the assembly and function of the postsynaptic complex. Although hundreds of proteins have been identified at the postsynaptic complex, little is known about their in vivo functions at synapses. Using genetic approaches in mice we are dissecting the roles of some key synaptic proteins in the assembly, maintenance and plasticity of the postsynaptic complex.

    The second aspect of our research is focused on using genetic approaches in mice to dissect the molecular and cellular basis of behaviors. We are particularly interested in how changes in synaptic and circuitry function may lead to abnormal behaviors related to OCD, autism and bipolar disorder. We apply a variety of mouse molecular genetic methods, such as regional and cell type-specific knockout and transgenic mice, to elucidate the molecules, the types of neurons, and the circuits involved in generating specific behaviors.

    The third line of research in the lab is to develop cutting-edge genetic tools for probing synaptic and circuitry function and dysfunction in mice. These include transgenic mice expressing GFP in single neurons in the brain for long-term live imaging; single-neuron labeling with inducible cre-mediated knockout (SLICK) in transgenic mice for combined genetic manipulation and imaging in single neurons in the brain; transgenic mice expressing Channelrhodopsin-2 and Halorhodopsin for cell type-specific manipulation of neural activity and circuit function in living mice; and transgenic mice expressing genetically encoded activity sensors for monitoring neuronal activity in vivo.

    Teaching

    9.013J Molecular and Cellular Neuroscience Core I 9.013J Molecular and cellular neuroscience core II

    Publications

    Welch, JM., Lu, J., Rodriguiz, RM., Trotta, NC., Peca, J., Ding, J-D., Feliciano, C., Chen, M., Adams, JP., Luo, J., Dudek, SM., Weinberg, RJ., Calakos, N., Wetsel, WC., and Feng, G. (2007) Cortico-striatal synaptic defects and OCD-like behaviors in SAPAP3 mutant mice. Nature 448:894-900.

    Lu, Z, Je, H-S., Young, P., Groos, J., Lu, B., and Feng, G. (2007) Regulation of Synaptic Growth and Maturation by a Synapse-Associated E3 Ubiquitin Ligase at the Neuromuscular Junction. J Cell Biol. 177:1077-1089.

    Arenkiel, B.A., Peca, J., Davison, I.G., Feliciano, C., Deisseroth, K., Augustine, G.J., Ehlers, M.D., and Feng, G. (2007) Light-Induced Activation of Neural Circuitry in Transgenic Mice Expressing Channelrhodopsin-2. Neuron 54:205-218.

    Young, P., Qiu, L., Wang, D., Zhao, S., Gross, J., and Feng, G. (2008). Single-neuron labeling with inducible cre-mediated knockout in transgenic mice. Nature Neurosci. 11:721-8.

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