First Author | Wang L | Year | 2008 |
Journal | Nat Immunol | Volume | 9 |
Issue | 2 | Pages | 186-93 |
PubMed ID | 18084294 | Mgi Jnum | J:131641 |
Mgi Id | MGI:3774091 | Doi | 10.1038/ni1548 |
Citation | Wang L, et al. (2008) 'Tuning' of type I interferon-induced Jak-STAT1 signaling by calcium-dependent kinases in macrophages. Nat Immunol 9(2):186-93 |
abstractText | Immunoreceptor tyrosine-based activation motif (ITAM)-coupled receptors modulate the amplitude and nature of macrophage responses to Toll-like receptor and cytokine receptor stimulation. However, the molecular mechanisms enabling this receptor crosstalk are not known. Here we investigated the function of the calcium-dependent kinases CaMK and Pyk2 'downstream' of ITAM-associated receptors in the regulation of cytokine-induced activation of Jak kinases and STAT transcription factors. CaMK and Pyk2 relayed signals from integrins and the ITAM-containing adaptor DAP12 to augment interleukin 10- and interferon-alpha-induced Jak activation and STAT1-dependent gene expression. CaMK inhibition suppressed STAT1-mediated interferon-alpha signaling in a mouse model of systemic lupus erythematosus. Our results associate Pyk2 and Jak kinases with the linkage of signals emanating from cytokine and heterologous ITAM-dependent receptors. |