✦ LIBER ✦

Differential expression of alloantigens of the major histocompatibility complex on unfertilized and fertilized mouse eggs

✍ Scribed by Heyner, Susan ;Hunziker, R. D.

Publisher: John Wiley and Sons
Year: 1979
Tongue: English
Weight: 477 KB
Volume: 1
Category: Article
ISSN: 0192-253X
DOI: 10.1002/dvg.1020010108

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✦ Synopsis

Mouse oocytes at the dictyate and metaphase I1 stages as well as fertilized eggs have been studied by indirect immunofluorescence for the expression of H-2 histocompatibility antigens on surface membranes. Serologically specific reactivity t o H-2 antibody was observed as patchy fluorescence distributed over the surface of the oocyte membrane. In contrast, one-cell zygotes exhibited variable reactivity, and early two-cell stages were negative. Absorption studies confirmed the serologic specificity of the reactivity on oocytes, which could be shown to be due t o H-2 antibody. The results suggest that fertilization results in altered expression of major histocompatibility complex surface antigens, and confirms earlier studies that cleavage stage mouse embryos are not reactive with H-2 antibody.

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