Leishmania promastigotes are recognized by the macrophage receptor for advanced glycosylation endproducts.

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Leishmania promastigotes are recognized by the macrophage receptor for advanced glycosylation endproducts

In this paper we demonstrate the involvement of the macrophage receptor for advanced glycosylation endproducts (AGE) in the phagocytosis of Leishmania major promastigotes. Blocking of this receptor with the ligand, AGE-BSA, leads to a 50% decrease in phagocytosis relative to controls, and a comparable decrease in the respiratory burst. The inhibition of phagocytosis by AGE-BSA was specific to l...

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Two novel rat liver membrane proteins that bind advanced glycosylation endproducts: relationship to macrophage receptor for glucose-modified proteins

Advanced glycosylation endproducts (AGEs), the glucose-derived adducts that form nonenzymatically and accumulate on tissue proteins, are implicated in many chronic complications associated with diabetes and aging. We have previously described a monocyte/macrophage surface receptor system thought to coordinate AGE protein removal and tissue remodeling, and purified a corresponding 90-kD AGE-bind...

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Modulation of macrophage mannose receptor affects the uptake of virulent and avirulent Leishmania donovani promastigotes.

The effect of oxidants and the anti-inflammatory steroid dexamethasone on the attachment and internalization of virulent and avirulent Leishmania donovani promastigotes by the macrophage mannosyl fucosyl receptor was examined. Oxidants and dexamethasone are known to down- and upregulate the expression of the mannose receptor. Macrophages, when treated with 500 microM H2O2 at 37 C for 30 min, st...

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Advanced glycosylation endproducts on erythrocyte cell surface induce receptor-mediated phagocytosis by macrophages. A model for turnover of aging cells

Glucose can react nonenzymatically with amino groups of proteins to form covalent Amadori products. With time these adducts undergo further rearrangements to form irreversible advanced glycosylation endproducts (AGE), which accumulate with protein age. A specific AGE, 2-(2-furoyl)-4(5)-(2-furanyl)-1H-imidazole (FFI), has been identified on proteins in vivo. We have recently shown that a macroph...

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Leishmaniasis is a parasitosis caused by several species of the genus Leishmania, an obligate intramacrophagic parasite. Although neurologic symptoms have been observed in human cases of leishmaniasis, the manifestation of neurodegenerative processes is poorly studied. The aim of the present work was to investigate if peripheral infection of BALB/c mice with Leishmania amazonensis affects tau p...

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ژورنال

عنوان ژورنال: Journal of Experimental Medicine

سال: 1987

ISSN: 0022-1007,1540-9538

DOI: 10.1084/jem.165.1.140