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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Stat5a/b are essential for normal lymphoid development and differentiation.

Cytokines that use the common gamma chain gammac are critical for lymphoid development and function. Mutations of the IL-7 receptor, gammac, or its associated kinase, Jak3, are the major cause of human severe combined immunodeficiency. Although activated by IL-7, Stat5a/b ( Stat, signal transducer and activator of transcription) have been thought to play limited roles in lymphoid development. However, we now show that mice completely deficient in Stat5a/b have severely impaired lymphoid development and differentiation. Absence of Stat5 also abrogates T cell receptor gamma rearrangement and survival of peripheral CD8(+) T cells. Thus, deficiency of Stat5 results in severe combined immunodeficiency, similar in many respects to deficiency of IL-7R, gammac, and Jak3.[1]


  1. Stat5a/b are essential for normal lymphoid development and differentiation. Yao, Z., Cui, Y., Watford, W.T., Bream, J.H., Yamaoka, K., Hissong, B.D., Li, D., Durum, S.K., Jiang, Q., Bhandoola, A., Hennighausen, L., O'Shea, J.J. Proc. Natl. Acad. Sci. U.S.A. (2006) [Pubmed]
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