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  • Title: A monoclonal antibody (100C5) to the Lyt-2-T cell population expanding in MRL/Mp-lpr/lpr mice detects a surface antigen normally expressed on Lyt-2+ cells and B cells.
    Author: Dumont FJ, Habbersett RC, Nichols EA, Treffinger JA, Tung AS.
    Journal: Eur J Immunol; 1983 Jun; 13(6):455-9. PubMed ID: 6602708.
    Abstract:
    MRL/Mp-lpr/lpr (MRL-lpr) mice develop a generalized lymphadenopathy reflecting the expansion of a Lyt-2- T cell population. The present report describes the pattern of reactivity of a xenogeneic monoclonal antibody (mAb 100C5) directed against this T cell population. By single- and two-color flow cytofluorometry analysis this mAb was found to stain brightly 80-90% of T cells in enlarged MRL-lpr lymph nodes. In contrast lymph node T cells from congenic MRL-MP-+/+ (MRL-+) mice were either unstained (70%) or weakly stained (30%), these latter cells being mostly Lyt-2+. Unexpectedly, all lymph node B cells from MRL-+ or MRL-lpr mice were as strongly 100C5+ as MRL-lpr T cells. Similar observations were made in C57BL/6-lpr/lpr and C57BL/6-+/+ mice. Molecular weight determination suggested that the 100C5 mAb binds to the same molecule (Mr = 220 000) on MRL-lpr T cells and normal B cells.
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