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FOXP3 and GARP (LRRC32): the master and its minion
Michael Probst-Kepper1, Jan Buer
1Institute for Microbiology, Immunology and Hygiene, Städtisches Klinikum Braunschweig gGmbH, Braunschweig, Germany. m.probst-kepper@klinikum-braunschweig.de
Abstract:
The transcription factor FOXP3 is essential for the development and function of CD4+CD25hiFOXP3+ regulatory T (T(reg)) cells, but also expressed in activated human helper T cells without acquisition of a regulatory phenotype. This comment focuses on glycoprotein-A repetitions predominant (GARP or LRRC32) recently identified as specific marker of activated human T(reg) cells, which may provide the missing link toward a better molecular definition of the regulatory phenotype.
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