Abstract
Two dominant lineages of T cells (αβ and γδ T cells) are highly distinct in function and anatomical location yet share a common precursor within the thymus. Exactly how one cell fate is decided over another remains unresolved. Melichar et al . present evidence that selection to the γδ T cell branch in the thymus is controlled by the transcription factor SOX13, which supports and possibly even initiates γδ T cell development while opposing differentiation of their αβ T cell brethren. The authors noted that SOX13 inhibited an important effector of the central T cell developmental signaling pathway mediated by the Wnt protein. H. J. Melichar, K. Narayan, S. D. Der, Y. Hiraoka, N. Gardiol, G. Jeannet, W. Held, C. A. Chambers, J. Kang, Regulation of γδ versus αβ T lymphocyte differentiation by the transcription factor SOX13. Science 315 , 230-233 (2007). [Abstract] [Full Text]
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