Cutting edge: Suppressor of cytokine signaling 3 inhibits activation of NFATp

A Banerjee, AS Banks, MC Nawijn, XP Chen, PB Rothman*

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

50 Citaten (Scopus)

Samenvatting

Recent studies have suggested that signaling initiated by the activation of Ag receptors and signaling activated through cytokine receptors may be regulated by a common set of inhibitory proteins. Suppressor of cytokine signaling 3 (SOCS-3), which has previously been demonstrated to inhibit cytokine signaling, is induced on TCR ligation. Overexpression of SOCS-3 can inhibit transcription driven by the IL-2 promoter in response to T cell activation. This inhibitory activity correlates with the suppression of calcineurin-dependent dephosphorylation and activation of the IL-2 promoter binding transcription factor, NFATp. Infection of primary marine T cells with a retrovirus encoding SOCS-3 blocks their IL-2 production in response to activation. Interestingly, SOCS-3 was found to coimmunoprecipitate with the catalytic subunit of calcineurin. These studies suggest that SOCS-3 may regulate T cell function as part of a negative feedback loop.

Originele taal-2English
Pagina's (van-tot)4277-4281
Aantal pagina's5
TijdschriftJournal of Immunology
Volume168
Nummer van het tijdschrift9
StatusPublished - 1-mei-2002

Citeer dit