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Maier CC , Bhandoola A , Borden W , Yui K , Hayakawa K , Greene MI
Unique molecular surface features of in vivo tolerized T cells
Proceedings of the National Academy of Sciences of the United States of America. 1998 Apr 14;95(8) :4499-4503
AbstractDifferential expression of surface markers can frequently be used to distinguish functional subsets of T cells, yet a surface phenotype unique to T cells induced into an anergic state has not been described. Here, we report that CD4 T cells rendered anergic in vivo by superantigen can be identified by loss of the 6C10 T cell marker. Inoculation of V beta 8.1 T cell antigen receptor (TCR) transgenic mice with a V beta 8.1- reactive minor lymphocyte-stimulating superantigen (Mls-1(a)) induces tolerance to Mls-1(a) by clonal anergy, CD4 lymph node T cells from Mls-1(a) inoculated transgenic mice enriched for the 6C10(-) phenotype neither proliferate nor produce interleukin-2 upon TCR engagement, whereas 6C10(+) CD4 T cells retain responsiveness. Analysis of T cell memory markers demonstrate that 6C10(-) T cells remain 3G11(hi) but express heterogeneous levels of CD45RB, CD62L, CD44, and the CD69 early activation marker, suggesting that T cells at various degrees of activation can be functionally anergic, These studies demonstrate that anergic T cells can be purified based on 6C10 expression permitting examination of issues concerning biochemical and biological features specific to T cell anergy.
NotesTimes Cited: 9 English Article ZH535 PROC NAT ACAD SCI USA