Biochemical characterization and cellular distribution of a polymorphic, murine cell-surface glycoprotein expressed on lymphoid tissues - PubMed (original) (raw)

Comparative Study

. 1982 Mar;15(3):299-312.

doi: 10.1007/BF00364338.

Comparative Study

Biochemical characterization and cellular distribution of a polymorphic, murine cell-surface glycoprotein expressed on lymphoid tissues

I S Trowbridge et al. Immunogenetics. 1982 Mar.

Abstract

A murine leukocyte surface glycoprotein (Mr = 95 000) has been defined by means of xenogeneic monoclonal antibodies. In normal hematopoietic tissues, the glycoprotein is found in highest amounts in the bone marrow. Flow cytometric analysis shows that essentially all bone-marrow cells express the glycoprotein and that it is a major component of a subpopulation of cells containing predominantly granulocytic precursors. In contrast, only about 5 percent of thymocytes express sufficient glycoprotein to be detected by flow cytometric analysis, although under stringent conditions up to 20 percent of thymocytes are susceptible to complement-mediated cytotoxicity using a monoclonal antibody against the glycoprotein. Functional assays showed that both prothymocytes and colony forming unit-spleen express the glycoprotein which is broadly distributed on murine hematopoietic tumor cell lines. However, although some Thy-1+ (T) cell lymphomas express large amounts of the glycoprotein, others do not express detectable quantities of the molecule. The glycoprotein is not restricted to hematopoietic cells and can be detected on lung, kidney, brain, and liver as well as cultured fibroblasts. Monoclonal antibodies against the glycoprotein cross-react with an antigen present on human cells. As described in the accompanying paper, the glycoprotein exists in two antithetical allelic forms and we show that it is identical to a polymorphic surface molecule independently characterized by Colombatti and co-workers.

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References

    1. Nature. 1981 Feb 5;289(5797):456-60 - PubMed
    1. Proc Natl Acad Sci U S A. 1978 May;75(5):2458-62 - PubMed
    1. Int J Cancer. 1972 Jul 15;10(1):44-57 - PubMed
    1. Radiat Res. 1961 Feb;14:213-22 - PubMed
    1. J Biol Chem. 1980 Feb 25;255(4):1662-9 - PubMed

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