Sphingolipid Degradation in Leishmania (Leishmania) amazonensis
نویسندگان
چکیده
منابع مشابه
Sphingolipid Degradation in Leishmania (Leishmania) amazonensis
BACKGROUND Human leishmaniasis is caused by more than 20 Leishmania species and has a wide range of symptoms. Our recent studies have demonstrated the essential role of sphingolipid degradation in the virulence of Leishmania (Leishmania) major, a species responsible for localized cutaneous leishmaniasis in the Old World. In this study, we investigated the function of sphingolipid degradation in...
متن کاملDevelopmentally Regulated Sphingolipid Degradation in Leishmania major
Leishmania parasites alternate between extracellular promastigotes in sandflies and intracellular amastigotes in mammals. These protozoans acquire sphingolipids (SLs) through de novo synthesis (to produce inositol phosphorylceramide) and salvage (to obtain sphingomyelin from the host). A single ISCL (Inositol phosphoSphingolipid phospholipase C-Like) enzyme is responsible for the degradation of...
متن کاملLeishmania amazonensis
Resistance to and recovery from leishmania infection is dependent on cell-mediated immunity. C57BL/6 mice are resistant to Leishmania amazonensis (La) infection but susceptible to LP-BM5 murine leukemia virus (MuLV) infection. MuLVinfection leads to a state ofimmunodeficiency characterized by severe compromise ofcell-mediated immunity. When infected with La alone, C57BL/6 mice developed a smaU ...
متن کاملRole of Leishmania (Leishmania) amazonensis amastigote glycosphingolipids in macrophage infectivity.
The role of glycosphingolipids (GSLs) present in amastigote forms of Leishmania (Leishmania) amazonensis during infection of macrophages was analyzed, with particular emphasis on GSLs presenting the terminal Galpss1-3Galpa disaccharide. Macrophage invasion by L. (L.) amazonensis amastigotes was reduced by 37% when the disaccharide Galpss1-3Galp (1 mM) was added to the culture medium. The putati...
متن کاملExperimental treatment with sodium stibogluconate of hamsters infected with Leishmania (Leishmania) chagasi and Leishmania (Leishmania) amazonensis.
The present paper reports the experimental treatment of hamsters infected with Leishmania chagasi and Leishmania amazonensis with sodium stibogluconate (20 mg/kg/day x 20 days). Only with L. chagasi did the treatment result in the complete elimination of parasites from the spleen. However, no parasitological cure was achieved in hamsters infected with L. amazonensis.
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ژورنال
عنوان ژورنال: PLoS Neglected Tropical Diseases
سال: 2012
ISSN: 1935-2735
DOI: 10.1371/journal.pntd.0001944