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L-type Calcium Channel Regulation of Neuronal Differentiation

Award Number: F31MH090648
ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS
PERIOD OF PERFORMANCE START DATE: 06/18/2010
PERIOD OF PERFORMANCE END DATE: 06/17/2013

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L-type Calcium Channel Regulation of Neuronal Differentiation - Mutations in L-type voltage gated calcium channels (LTCs) are associated with autism and other neurodevelopmental disorders. The goal of this project is to investigate how LTCs regulate neural progenitor cell (NPC) proliferation and differentiation. Neural development involves a series of coordinated events that balance maintenance and proliferation of NPCs with the differentiation of daughter cells to generate the neuronal populations that comprise the mature cerebral cortex. LTCs such as CaV1.2 convert electrical signals into calcium signals that control biochemical pathways and activate programs of gene expression in the developing nervous system. A gain of function mutation in CaV1.2 leads to Timothy Syndrome (TS), a multi- systemic disorder characterized by autism and mental retardation. Our laboratory has generated a transgenic mouse model for TS and I have found that there is a significant increase in proliferation of NPCs in the ventricular zone (VZ) of these animals. Using an in vitro system to study neuronal differentiation, I have also found that over-expression of wildtype CaV1.2 or CaV1.2 containing the TS mutation (TS-CaV1.2) results in a dramatic impairment of neuronal differentiation. Furthermore, blocking endogenous LTCs also reduces NPC differentiation in vitro. The goal of this project is to extend these initial findings by investigating both the regulation of CaV1.2 during development and the mechanisms by which these channels control NPC differentiation in vitro and in vivo. These studies will expand our understanding of how activity regulates brain development and will provide new insights into the underlying pathophysiology of autism and mental retardation.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2017 ( Subtotal = $0 )
2017	2012	LELAND STANFORD JUNIOR UNIVERSITY, THE	450 SERRA MALL	STANFORD	CA	94305	SANTA CLARA	USA	Mental Health National Research Service Awards for Research Training	000	3	5/15/2017	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2012 ( Subtotal = $33,002 )
2012	2012	STANFORD UNIVERSITY	651 SERRA STREET, ROOM 110	STANFORD	CA	94305	SANTA CLARA	USA	Mental Health National Research Service Awards for Research Training	000	3	5/17/2012	NON-COMPETING CONTINUATION	$33,002
														Subtotal = $33,002

Issue Date FY: 2011 ( Subtotal = $32,129 )
2011	2011	STANFORD UNIVERSITY	651 SERRA STREET, ROOM 110	STANFORD	CA	94305	SANTA CLARA	USA	Mental Health National Research Service Awards for Research Training	000	2	8/29/2011	NON-COMPETING CONTINUATION	$32,129
														Subtotal = $32,129

Issue Date FY: 2010 ( Subtotal = $41,380 )
2010	2010	STANFORD UNIVERSITY	651 SERRA STREET, ROOM 110	STANFORD	CA	94305	SANTA CLARA	USA	Mental Health National Research Service Awards for Research Training	000	1	4/5/2010	NEW	$41,380
2010	2010	STANFORD UNIVERSITY	651 SERRA STREET, ROOM 110	STANFORD	CA	94305	SANTA CLARA	USA	Mental Health National Research Service Awards for Research Training	001	1	4/5/2010	NEW	$0
														Subtotal = $41,380

Grand Total All Awards = $106,511

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L-type Calcium Channel Regulation of Neuronal Differentiation

Award Number: F31MH090648

ORGANIZATION: NATIONAL INSTITUTE OF MENTAL HEALTH

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

PERIOD OF PERFORMANCE START DATE: 06/18/2010

PERIOD OF PERFORMANCE END DATE: 06/17/2013

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