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. 1995 Jul 7;269(5220):79-81.
doi: 10.1126/science.7604283.

"V体育2025版" Constitutively activated Jak-STAT pathway in T cells transformed with HTLV-I

T S Migone  1 , J X Lin, A Cereseto, J C Mulloy, J J O'Shea, G Franchini, W J Leonard
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Constitutively activated Jak-STAT pathway in T cells transformed with HTLV-I

T S Migone et al. Science. .

Abstract

Human T cell lymphotropic virus I (HTLV-I) is the etiological agent for adult T cell leukemia and tropical spastic paraparesis (also termed HTLV-I-associated myelopathy). HTLV-I-infected peripheral blood T cells exhibit an initial phase of interleukin-2 (IL-2)-dependent growth; over time, by an unknown mechanism, the cells become IL-2-independent. Whereas the Jak kinases Jak1 and Jak3 and the signal transducer and activator of transcription proteins Stat3 and Stat5 are activated in normal T cells in response to IL-2, this signaling pathway was constitutively activated in HTLV-I-transformed cells. In HTLV-I-infected cord blood lymphocytes, the transition from IL-2-dependent to IL-2-independent growth correlated with the acquisition of a constitutively activated Jak-STAT pathway, which suggests that this pathway participates in HTLV-I-mediated T cell transformation. VSports手机版.

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