First Author | Wang D | Year | 2002 |
Journal | Nat Immunol | Volume | 3 |
Issue | 9 | Pages | 830-5 |
PubMed ID | 12154356 | Mgi Jnum | J:304570 |
Mgi Id | MGI:6695669 | Doi | 10.1038/ni824 |
Citation | Wang D, et al. (2002) A requirement for CARMA1 in TCR-induced NF-kappa B activation. Nat Immunol 3(9):830-5 |
abstractText | Stimulation of the T cell receptor (TCR) complex initiates multiple signaling cascades that lead to the activation of several transcription factors, including the NF-kappa B family members. Although various proximal signaling components of the TCR have been intensively studied, the distal components that mediate TCR-induced NF-kappa B activation remain largely unknown. Using a somatic mutagenesis approach, we cloned a CARMA1-deficient T cell line. Deficiency in CARMA1 (originally known as CARDII) resulted in selectively impaired activation of NF-kappa B induced by the TCR and a consequent defect in interleukin-2 (IL-2) production. Reconstitution of the CARMA1-deficient cells with CARMA1 fully rescued this signaling defect. Together, our results show that CARMA1 is an essential signaling component that mediates TCR-induced NF-kappa B activation. |