Studies on the attachment of Leishmania flagella to sand fly midgut epithelium.

Studies on the attachment of Leishmania flagella to sand fly midgut epithelium.
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利什曼原虫鞭毛附着于沙蝇中肠上皮的研究。

DOI:
10.1111/j.1550-7408.1989.tb01104.x
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发表时间:
1989
期刊:
The Journal of protozoology
影响因子:
--
通讯作者:
McMahon-Pratt,D
McMahon-Pratt,D
中科院分区:
--
文献类型:
--
作者:
Warburg,A;Tesh,RB;McMahon-Pratt,D

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本研究建立了一种研究利什曼原虫对白蛉中肠上皮细胞粘附识别机制的体外实验方法。将沙蝇肠的冷冻切片与Hagella制剂一起孵育,并用鞭毛特异性单克隆抗体进行探测。通过间接免疫荧光证实鞭毛与中肠上皮的组织特异性粘附。筛选以测试可能的凝集素介导的13种糖中没有一种似乎显著抑制鞭毛粘附到肠道部分。类似地,通过将鞭毛与抑制前鞭毛体-巨噬细胞识别机制的pep 63孵育也未实现抑制。通过将鞭毛制备物与结合鞭毛膜组分的单克隆抗体孵育获得显著抑制。利什曼原虫在其白蛉宿主的生物学机制的可能相关性进行了讨论。
An in vitro assay was developed to study the recognition mechanism for attachment ofLeishmaniaflagella to sand fly midgut epithelium. Frozen sections of sand fly guts were incubated with Hagella preparations, and probed with a flagella‐specific monoclonal antibody. Tissue‐specific adhesion of flagella to midgut epithelium was demonstrated by indirect immunofluorescence. None of the 13 sugars, screened to test for possible lectin‐mediation, appeared to significantly inhibit the adhesion of flagella to gut sections. Similarly no inhibition was achieved by incubating flagella with pep 63 which inhibits the promastigote‐macrophage recognition mechanism. Significant inhibition was attained by incubating flagella preparations with a monoclonal antibody which binds to a flagellar membrane‐component. The possible relevance of the described mechanism for the biology ofLeishmaniain their sand fly hosts, is discussed.
DOI: 10.4049/jimmunol.135.4.2785
发表时间: 1985-10
影响因子: 4.4
作者:
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DOI: --
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期刊:
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发表时间: 1982-01-01
期刊: SCIENCE
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