Species-specific inhibition by glycophorins of complement activation via the alternative pathway.

Abstract:

:Glycophorin, one of the major glycoproteins of erythrocytes (E), was extracted from human E (glycophorin-Hu) and guinea pig E (glycophorin-GP) and adsorbed to rabbit-E. The adsorption of glycophorin-Hu and glycophorin-GP to rabbit-E made the E resistant to hemolysis by human serum and guinea pig serum, respectively, via the alternative complement pathway (ACP). However, it did not make the rabbit-E resistant to hemolysis by serum heterologous to the glycophorin adsorbed. This species-specific inhibition by glycophorin of ACP activation should play a role in restricting ACP activation on self cell membranes. By recognizing the self-cell surface as the place where the complement reaction must be prevented, ACP will be able to accomplish the discrimination of non-self constituents without diversity of recognition sites for a variety of foreign substances.

journal_name

Mol Immunol

journal_title

Molecular immunology

authors

Okada H,Tanaka H

doi

10.1016/0161-5890(83)90148-7

subject

Has Abstract

pub_date

1983-11-01 00:00:00

pages

1233-6

issue

11

eissn

0161-5890

issn

1872-9142

journal_volume

20

pub_type

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