Delineation of immunologically and biochemically distinct HLA-A2 antigens.

Author:

Biddison W E,Kostyu D D,Strominger J L,Krangel M S

Abstract

Abstract Cytotoxic T cell (CTL) recognition of influenza virus in conjunction with HLA-A2 was examined in a population study. Virus-infected target cells from three unrelated A2-positive donors were not lysed by virus-immune CTL from any donor matched only for A2. The A2 antigens of these three donors were indistinguishable from the A2 antigens of other A2-positive donors as assessed by extensive serologic analyses; however, isoelectric focusing (IEF) of A2 molecules from these three donors demonstrated that their A2 heavy polypeptide chains are structurally distinct from those of "normal" A2-positive donors. To date 11% of all A2-positive donors tested exhibited a "variant" A2-associated CTL restriction antigen, and IEF of A2 heavy chains from all "variant" A2-positive cells revealed structural differences in each of these polypeptides. These results suggest there may be considerably greater polymorphism of HLA-A gene products than has been revealed by current serologic techniques.

Publisher

The American Association of Immunologists

Subject

Immunology,Immunology and Allergy

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Immune Response to Virus-Infected Cells;Clinics in Immunology and Allergy;1986-02

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