Abstract：
:This is the first report establishing the existence of glycolipids synthesized by plasmodia, in particular Plasmodium falciparum. Trophozoites, schizonts, gametocytes, and gametes were metabolically labeled in vitro with [3H]glucosamine, [3H]galactose, [3H]glucose, [3H]mannose, [3H]fucose, [32P]inorganic phosphate, or [35S]sulfate, and total lipid extracts analyzed by high-performance thin-layer chromatography and autoradiography or fluorography. Parasites incorporated [3H]monosaccharides into distinctly different series of molecules previously undescribed. Three properties of [3H]glucosamine labeled molecules indicate they are glycolipids. First, labeled molecules have lipid solubility properties. Second, mobility on thin-layer chromatography was characteristic of glycolipids. Third, following acid hydrolysis, [3H]glucosamine was recovered from a total lipid extract of labeled parasites demonstrating that glucosamine is a constituent of some of these lipid molecules. Most of these glycolipids are neutral and alkali labile. The majority of these glycolipids differs from several synthesized phospholipids. None of these glycolipids was sulfated. Plasmodial glycolipid synthesis occurs concomitantly with glycoprotein synthesis, and both increase during schizogony. Many of these glycolipids appear to be identical among three strains of P. falciparum and between two species, P. falciparum and P. knowlesi. In contrast, there are stage specific differences in glycolipid synthesis among rings, schizonts, gametocytes, and a mixture of gametes plus zygotes of P. falciparum, examples of both erythrocytic and vector forms of the parasite.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
Sherwood JA,Spitalnik SL,Aley SB,Quakyi IA,Howard RJdoi
10.1016/0014-4894(86)90016-0subject
Has Abstractpub_date
1986-08-01 00:00:00pages
127-41issue
1eissn
0014-4894issn
1090-2449journal_volume
62pub_type
杂志文章abstract：:Ten pairs of Leishmania (Viannia) strains isolated from mucosal and cutaneous lesions of the same patient were analyzed genotypically in order to determine whether populations that had metastasized to mucosal sites differed from those in the cutaneous lesion. The strains were previously characterized by multi locus en...
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更新日期：1988-10-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
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更新日期：1984-06-01 00:00:00
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更新日期：1985-06-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2006.05.001
更新日期：2007-01-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2004.12.006
更新日期：2005-03-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章,评审
doi：10.1016/j.exppara.2007.06.004
更新日期：2007-11-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(88)90116-6
更新日期：1988-02-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(90)90026-9
更新日期：1990-08-01 00:00:00
abstract：:We have studied inflammatory reactions in the mesenteric tissue of mice infected with Schistosoma mansoni. Perivascular tissue contained diffuse infiltrates of macrophages, eosinophilic granulocytes and lymphocytes. Angiogenesis in the perivascular adipose tissue was associated with superficial plasmacytogenic foci. P...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(92)90203-m
更新日期：1992-06-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/0014-4894(90)90108-o
更新日期：1990-04-01 00:00:00
abstract：:Entamoeba histolytica infection is associated with considerable morbidity and mortality in the form of intestinal and extraintestinal amoebiasis. No vaccine is yet available for amoebiasis. Heparan Sulphate Binding Proteins (HSBPs) from E. histolytica were evaluated for immunogenicity and protective efficacy in a Guin...
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更新日期：2013-11-01 00:00:00
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更新日期：2012-04-01 00:00:00
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更新日期：1991-10-01 00:00:00
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更新日期：1998-03-01 00:00:00
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更新日期：1985-08-01 00:00:00
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