1887

Abstract

Summary

The fate of three freshly isolated strains of phagocytosis by human or guinea-pig polymorphs was studied Less than 1 per cent. of gonococci phagocytosed by the guinea-pig cells survived at 100 min., but some 20 per cent. of gonococci associated with the human polymorphs were not killed even after 3 hr. The persisting gonococci were destroyed when the polymorphs were exposed to penicillin and this indicates that the surviving bacteria lay outside the polymorph membrane.

Cationic proteins prepared by fractional ethanol precipitation of acid extracts of the granules from human and guinea-pig polymorphs rapidly destroyed gonococci and, presumably, are partly responsible for the ability of polymorphs to kill gonococci.

Although these findings require confirmation in studies with gonococci grown they strongly suggest that man's susceptibility to gonorrhoea is not explained simply by the survival of gonococci in polymorphs.

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/content/journal/jmm/10.1099/00222615-3-3-501
1970-08-01
2019-12-15
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