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  • Title: JAK3 Janus kinase is involved in interleukin 7 signal pathway.
    Author: Zeng YX, Takahashi H, Shibata M, Hirokawa K.
    Journal: FEBS Lett; 1994 Oct 24; 353(3):289-93. PubMed ID: 7957877.
    Abstract:
    Interleukin (IL) 7 is an important cytokine regulating both T and B cell development and inducing the formation of lymphokine-activated killer cells and cytolytic T lymphocytes. This study reports the role of JAK family kinases in the IL-7 signalling pathway in a T cell clone. The results have shown that out of 4 members of JAK family tyrosine kinases (JAK1, JAK2, JAK3 and Tyk2), only JAK3 was tyrosine-phosphorylated and activated in cells of a T cell clone by stimulation with IL-7. Furthermore, STAT1 alpha (STAT, the signal transducers and activators of transcription) and p44 of MAPK (mitogen-activated protein kinases) were tyrosine phosphorylated by IL-7 stimulation, indicating that the two signal pathways might be involved in IL-7 signal transduction.
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