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. 1990 Jul;58(7):2297–2302. doi: 10.1128/iai.58.7.2297-2302.1990

Study of Leishmania major-infected macrophages by use of lipophosphoglycan-specific monoclonal antibodies.

E Handman 1
PMCID: PMC258811  PMID: 1694823

Abstract

Leishmania major infection of macrophages is followed by a time-dependent appearance of lipophosphoglycan (LPG) that can be detected on the surface of infected cells by monoclonal antibodies. The origin of these LPG epitopes is probably the intracellular amastigote. LPG epitopes could be detected on the amastigote and the infected macrophage by a number of monoclonal antibodies directed to several distinct determinants on the phosphoglycan moiety. The macrophage-expressed LPG may be modified because, unlike the parasite LPG as expressed on promastigotes or amastigotes, it could not be radiolabeled by galactose oxidase or periodate treatment of infected cells followed by reduction with 3H-labeled sodium borohydride. Some LPG epitopes displayed on the macrophage may be anchored with glycosylphosphatidylinositol, and some may be in the water-soluble phosphoglycan form bound to macrophage integrins involved in its specific recognition. The water-soluble population could be released from the infected macrophage by gentle protease treatment.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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