Abstract:
:The p38 and JNK stress-activated MAPK signal transduction pathways are activated by T cell receptor (TCR) signaling and are required for IFN-gamma production by TH1 effector cells. Here, we show that the expression of GADD45gamma is induced during T cell activation and that the level of expression is higher in TH1 cells than in TH2 cells. TH1 cells from GADD45gamma(-/-) mice are severely compromised in their abilities to activate p38 and JNK in response to TCR signaling, produce much less IFN-gamma upon restimulation, and are deficient in activation-induced cell death (AICD). Additionally, GADD45gamma deficiencies caused reduced contact hypersensitivity in mice. Thus, GADD45gamma mediates activation of the p38 and JNK pathways and effector function of TH1 cells.
journal_name
Immunityjournal_title
Immunityauthors
Lu B,Yu H,Chow C,Li B,Zheng W,Davis RJ,Flavell RAdoi
10.1016/s1074-7613(01)00141-8keywords:
subject
Has Abstractpub_date
2001-05-01 00:00:00pages
583-90issue
5eissn
1074-7613issn
1097-4180pii
S1074-7613(01)00141-8journal_volume
14pub_type
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