: Signaling events and molecules implicated in granule exocytosis in cytotoxic lymphocytes remain poorly characterized despite the central role that this effector mechanism plays in tumor and viral immunity. This study is aimed at identifying critical regulatory molecules and determining their role in regulation of lytic granule release. A functional genomics approach employing a partially automated expression cloning method will be used for this purpose. Compared to other expression cloning strategies, sib selection screening method outlined here allows more efficient identification of molecules of interest. Pools of indexed cDNA from a human brain library are already available, a human activated T cell library will be picked and pooled, and an NK cell line to be used as reporter of cytotoxic lymphocyte degranulation has been defined. Identification of granule exocytosis inducers will promote a better understanding of the regulation of cytotoxic function in CD8+ T cells and NK cells. The findings originating from this study would potentially allow modulation of cytotoxic effector function during lymphocyte response to tumors and viruses. ? ?

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Postdoctoral Individual National Research Service Award (F32)
Project #
5F32CA101449-04
Application #
6891955
Study Section
Special Emphasis Panel (ZRG1-F07 (20))
Program Officer
Lohrey, Nancy
Project Start
2003-05-01
Project End
2006-04-30
Budget Start
2005-05-01
Budget End
2006-04-30
Support Year
4
Fiscal Year
2005
Total Cost
$51,548
Indirect Cost
Name
Children's Research Institute
Department
Type
DUNS #
143983562
City
Washington
State
DC
Country
United States
Zip Code
20010