A fundamental challenge in neuroscience is to determine how neuronal circuits control behavior and how plasticity, or changes in behavior, is brought about by experience- dependent changes in circuitry. To address this basic challenge we must first identify synaptically-connected neurons within a functional circuit and second, we must be to visualize connected neurons in living animals under conditions in which circuits and behavior are induced to change. This will allow scientists to test whether experience- dependent changes in neuronal connections underlie changes in behavior. The goal of our proposal is to generate tools to visualize and manipulate synaptically-connected neurons within functional circuits in living animals. We propose to accomplish this goal using a unique strategy in which we identify endogenous proteins which cross synapses and use these proteins to transport the gal4 transcriptional activator into postsynaptic neurons, where it will induce amplified expression of UAS-driven reporters or genes of interest.

Public Health Relevance

The ability to visualize and manipulate neuronal circuits in the intact brain is a will be a major advance in understanding how brain circuits affect behavior. We propose to develop a novel method to label trans-synaptically connected neurons which is amenable to in vivo time-lapse imaging.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Project (R01)
Project #
5R01MH091676-04
Application #
8454534
Study Section
Special Emphasis Panel (ZNS1-SRB-B (21))
Program Officer
Beckel-Mitchener, Andrea C
Project Start
2010-07-20
Project End
2014-04-30
Budget Start
2013-05-01
Budget End
2014-04-30
Support Year
4
Fiscal Year
2013
Total Cost
$360,962
Indirect Cost
$170,882
Name
Scripps Research Institute
Department
Type
DUNS #
781613492
City
La Jolla
State
CA
Country
United States
Zip Code
92037
Shen, Wanhua; Liu, Han-Hsuan; Schiapparelli, Lucio et al. (2014) Acute synthesis of CPEB is required for plasticity of visual avoidance behavior in Xenopus. Cell Rep 6:737-47
Schiapparelli, Lucio Matias; McClatchy, Daniel B; Liu, Han-Hsuan et al. (2014) Direct detection of biotinylated proteins by mass spectrometry. J Proteome Res 13:3966-78
Sharma, Pranav; Schiapparelli, Lucio; Cline, Hollis T (2013) Exosomes function in cell-cell communication during brain circuit development. Curr Opin Neurobiol 23:997-1004