XB-ART-14881Semin Immunol April 1, 1998; 10 (2): 127-32.
HMG box containing transcription factors in lymphocyte differentiation.
The identification of the mammalian sex-determining gene Sry has led to the discovery of a large family of related (''HMG box'') transcription factors that control developmental events in yeast, C. elegans, Drosophila and vertebrates. In lymphocyte differentiation, several HMG box proteins play a decisive role. Sox-4 is important for very early B-cell differentiation, while TCF-1/LEF-1 play a crucial role in early thymocyte development. TCF/LEF proteins have recently been found to constitute a downstream component of the Wingless/Wnt signal transduction pathway. In flies, this pathway controls segment polarity; in Xenopus it controls the definition of the body axis. Deregulation of the pathway occurs in several human tumors. These insights in the molecular events that are involved in TCF/LEF function in these organisms may eventually lead to the understanding of the function of these HMG box proteins in lymphoid development.
PubMed ID: 9618758
Article link: Semin Immunol
Species referenced: Xenopus
Genes referenced: lef1 sox13 sox3 tcf7