溶组织内阿米巴致病因子的研究进展

Advances in Research on Virulence Factors of Entamoeba histolytica

溶组织内阿米巴滋养体入侵宿主,聚集在结肠,可以穿过覆盖在结肠上皮的黏液层,引起阿米巴性结肠炎;或者随血液循环进入其他组织,引起肠外脓肿。本文就溶组织内阿米巴滋养体致病因子及其作用作一综述。

The parasitic protozoan Entamoeba histolytica is an important pathogen responsible for intestinal and extraintestinal amebiasis in human, claiming up to 100 000 victims every year. This parasite is characterized by its high potential for invading and destroying human tissues. Invasion past the mucous barrier of the colonic epithelium leads to the development of colitis and amebic dysentery. Dissemination of the trophozoite through blood stream permits the invasion of other tissues, resulting in abscesses in extracolonic location. Several virulence factors have been proposed to be involved in E. histolytica pathogenicity. This review is to summarize the advances in the research.