Granulocyte-Complement Interaction: A Beneficial Antimicrobial Mechanism That Can Cause Disease

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Abstract

As is so frequently the case, “experiments of nature,” in which patients lack a normal bodily constituent, educate us to the function of the missing component. Although the plasma complement (C) system was initially recognized by its ability to foster hemolysis of antibody-coated RBCs, the microbicidal activity of the system probably has determined its evolutionary selection. Thus, rare patients who are genetically deficient in C3, a C component that is common to both pathways of C activation—the classical and alternative, are chronically and severely victimized by pyogenic infections.1 BENEFICIAL EFFECTS OF COMPLEMENT-GRANULOCYTE INTERACTION The C system probably serves mainly to potentiate the capability of granulocytes to kill bacteria, and does so in several different ways. Perhaps most noteworthy is the ability of C3b, a cleavage product that results from activation of C3, to opsonize bacteria and other unwanted particles. Since granulocytes (and monocytes) have receptors for this and other.

Original languageEnglish (US)
Pages (from-to)461-463
Number of pages3
JournalArchives of Internal Medicine
Volume138
Issue number3
DOIs
StatePublished - Mar 1978

Bibliographical note

Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

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