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Interleukin 2 production by human T lymphocytes identified by antibodies to dipeptidyl peptidase IV.

作者信息

Scholz W, Mentlein R, Heymann E, Feller A C, Ulmer A J, Flad H D

出版信息

Cell Immunol. 1985 Jun;93(1):199-211. doi: 10.1016/0008-8749(85)90400-9.

DOI:10.1016/0008-8749(85)90400-9
PMID:2859930
Abstract

T-Cell subsets identified by polyclonal and monoclonal antibodies to dipeptidyl peptidase IV (DP IV) were investigated. Analysis in a cytofluorograf revealed 63 +/- 7% positive scatter-gated T lymphocytes. DP IV-positive cells were found to be T11+, 74-81% OKT4+, and 12-19% OKT8+. DP IV-negative cells were T11+ and comprise 16-40% OKT8+, and 10-30% OKT4+ T cells. Treatment of T lymphocytes with rabbit anti-DP IV and complement as well as the presence of rabbit anti-DP IV during culture resulted in a reduction of interleukin 2 (IL-2) production. This reduction was not observed with the mouse monoclonal anti-DP IV antibody II-19-4-7. Positive enrichment of DP IV-positive lymphocytes by cell sorting revealed excellent IL-2 production of DP IV-positive cells and very poor IL-2 activity in supernatants obtained from DP IV-negative lymphocytes. Thus, DP IV may serve as cell surface marker for IL-2-producing T lymphocytes.

摘要

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