Divergent role of Gs alpha subunit in CD4 T cells on Th subset differentiation and their inflammator...

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" Divergent role of Gs alpha subunit in CD4 T cells on Th subset differentiation and their inflammatory profile "
Goldstone, Jonathan

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	897588
Doc. No	:	TL7789p31n
Main Entry	:	Bowman, Rocco
Title & Author	:	Divergent role of Gs alpha subunit in CD4 T cells on Th subset differentiation and their inflammatory profile\ Goldstone, Jonathan
Date	:	2011
student score	:	2011
Abstract	:	Cyclic AMP both inhibits and promotes T cell functions; however the effects in a particular T helper subset have been difficult to define. We engineered mice with a deletion of the stimulatory G alpha subunit (Gnas-/-) in CD4⁺ T cells. Gnas-/- CD4 T cells have reduced cAMP accumulation, display weak Th17 and Th1 but normal Th2 responses and fail to elicit colitis. Incubation of Gnas-/ - CD4 T cells with cell permeable cAMP analog restored their impaired phenotype via a PKA-dependent influx of Ca²⁺. These findings define an important role for cAMP in the differentiation of certain Th subsets and their subsequent inflammatory functions and raise the possibility that altering cAMP levels in CD4 T cells could provide an immunomodulatory approach for specific Th subsets
Added Entry	:	Goldstone, Jonathan
Added Entry	:	UC San Diego