PMID: 6989907Jun 1, 1980Paper

Human leukemia-associated antigen: relation to a family of surface glycoproteins

The Journal of Immunology : Official Journal of the American Association of Immunologists
J M PesandoS F Schlossman

Abstract

A heteroantiserum raised to leukemic cells of a patient with non-T cell acute lymphoblastic leukemia (ALL) has been extensively absorbed with cells from a leukemic T cell line and an autologous B lymphoblastoid cell line to produce a common ALL antiserum (CALLA). CALLA is specific for leukemic cells of most patients with non-T cell ALL and chronic myelogenous leukemia (CML) in lymphoid blast crisis. It has been extensively tested on a wide variety of normal cells and is unreactive with them. CALLA identifies a surface glycoprotein having a m.w. of approximately 100,000 on reactive cell populations. In contrast, partially absorbed anti-ALL sera detect a similar glycoprotein band on CALLA-negative B and T cell lines. The glycoprotein identified by CALLA has been isolated and used as an immunogen. This new antiserum (C129) detects a 100,000-dalton glycoprotein not only on CALLA-positive cell populations but also on most CALLA-negative normal and malignant hematopoietic cells and on B and T cell lines. We conclude that there exists a family of 100,000-dalton glycoproteins that are present on a variety of normal, transformed, and malignant cells and that possess shared as well as unique antigenic regions. The expression of at least ...Continue Reading

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