The present program project centers around three independent proposals aimed at understanding the development, function and plasticity of 5HT3aR interneurons (INs) in the cerebral cortex. The impetus to create this core emerged out of the recognition that a shared molecular and transgenic resource would serve the dual purpose of cost efficiency in the production and distribution of a shared set of reagents and to foster a natural setting for collaboration between the three contributing laboratories. Indeed, the use of the same genetic tools across each of the proposals provides for a solid basis by which results garnered through diverse methods and collected at different time points from both developing and mature animals can be compared. To implement these goals we recognize that two distinct considerations need to be taken into account in assembling this core. First, (in Phase 1) we need to scale up the availability of a set of existing reagents that are broadly required for the execution of the aims of each of the constituent projects. From the judicious collection of preexisting reagents, we have assembled our preliminary data. Although lacking sufficient specificity to individually target each of the five classes of 5HT3aR INs we wish to study, we already possessed the ability to label this population in its entirety using the 5HT3aRcre driver line, as well as to selectively examine the VIP+ versus VIP- subpopulations that separate the entire 5HT3aR pool into two distinct subgroups using the VIPcre driver line in conjunction with the 5HT3aR-EGFP line. In addition, the Chatcre driver allows us to;with reasonable fidelity target the VIP+/CR+ bipolar population. In combination with a series of conditional alleles, reporters and viral effectors, with the establishment of Core A, we will have in hand the tools to at a general level address all aims in our proposal. In Phase 2 of this proposal we wish to increase the fidelity of our analysis by developing a refined set of alleles and viral reagents to more specifically label and manipulate discrete subsets of the 5HT3aR+ IN population. , Hence, having produced (or collected) such reagents during the first two years of our proposal, we wish in the second portion of the core's existence (years 3-5) to utilize these tools in a finer grained analysis of these IN subtypes.

Public Health Relevance

By developing a centralized infrastructure, the efficiency in generation of these reagents can be done most economically. It also provides a centralized resource for distribution, first and foremost to the members of the PPG but ultimately to the community at large.

National Institute of Health (NIH)
National Institute of Neurological Disorders and Stroke (NINDS)
Research Program Projects (P01)
Project #
Application #
Study Section
National Institute of Neurological Disorders and Stroke Initial Review Group (NSD)
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
New York University
New York
United States
Zip Code
Yang, Guang; Lai, Cora Sau Wan; Cichon, Joseph et al. (2014) Sleep promotes branch-specific formation of dendritic spines after learning. Science 344:1173-8
Kepecs, Adam; Fishell, Gordon (2014) Interneuron cell types are fit to function. Nature 505:318-26
Muñoz, William; Tremblay, Robin; Rudy, Bernardo (2014) Channelrhodopsin-assisted patching: in vivo recording of genetically and morphologically identified neurons throughout the brain. Cell Rep 9:2304-16
Muñoz, William; Rudy, Bernardo (2014) Spatiotemporal specificity in cholinergic control of neocortical function. Curr Opin Neurobiol 26:149-60
De Marco Garcia, Natalia V; Fishell, Gord (2014) Subtype-selective electroporation of cortical interneurons. J Vis Exp :e51518
Takada, Naoki; Pi, Hyun Jae; Sousa, Vitor H et al. (2014) A developmental cell-type switch in cortical interneurons leads to a selective defect in cortical oscillations. Nat Commun 5:5333
Karayannis, T; Au, E; Patel, J C et al. (2014) Cntnap4 differentially contributes to GABAergic and dopaminergic synaptic transmission. Nature 511:236-40
Rossignol, Elsa; Kruglikov, Illya; van den Maagdenberg, Arn M J M et al. (2013) CaV 2.1 ablation in cortical interneurons selectively impairs fast-spiking basket cells and causes generalized seizures. Ann Neurol 74:209-22
Lee, Soohyun; Kruglikov, Illya; Huang, Z Josh et al. (2013) A disinhibitory circuit mediates motor integration in the somatosensory cortex. Nat Neurosci 16:1662-70
Fishell, Gord; Heintz, Nathaniel (2013) The neuron identity problem: form meets function. Neuron 80:602-12

Showing the most recent 10 out of 11 publications