Analysis of human immunoglobulin-degrading cysteine proteinases of Trichomonas vaginalis
نویسندگان
چکیده
منابع مشابه
Analysis of human immunoglobulin-degrading cysteine proteinases of Trichomonas vaginalis.
Trichomonas vaginalis is a protozoan parasite that causes a widely distributed sexually transmitted disease (STD). Since immunoglobulin G (IgG) antibodies to specific trichomonad immunogens are found in serum and vaginal washes (VWs) from patients with trichomoniasis, a potential mechanism of immune evasion by this parasite might be the ability of T. vaginalis proteinases to degrade human immun...
متن کاملTrichomonas vaginalis is to trichomonad proteinases
Background-A recent report demonstrated the immunogenic character of the cysteine proteinases of Trichomonas vaginalis. It was of interest, therefore, to examine for the presence of serum anti-proteinase antibody among patients with trichomoniasis. Methods-An immunoprecipitation assay was used involving protein A-bearing Staphylococcus aureus first coated with the IgG fraction ofgoat anti-human...
متن کاملBiological roles of cysteine proteinases in the pathogenesis of Trichomonas vaginalis
Human trichomonosis, infection with Trichomonas vaginalis, is the most common non-viral sexually transmitted disease in the world. The host-parasite interaction and pathophysiological processes of trichomonosis remain incompletely understood. This review focuses on the advancements reached in the area of the pathogenesis of T. vaginalis, especially in the role of the cysteine proteinases. It hi...
متن کاملThe vagina has reducing environment sufficient for activation of Trichomonas vaginalis cysteine proteinases.
BACKGROUND Trichomonas vaginalis, a worldwide distributed sexually transmitted protozoan, is remarkable for synthesis of numerous, distinct cysteine proteinases, the significance of which is evidenced by the presence in vivo of soluble proteinases in secretions and antiproteinase antibody in serum of patients with trichomonosis. These proteinases purportedly play a role in host parasitism and i...
متن کاملTrichomonas vaginalis Cysteine Proteinases: Iron Response in Gene Expression and Proteolytic Activity
We focus on the iron response of Trichomonas vaginalis to gene family products such as the cysteine proteinases (CPs) involved in virulence properties. In particular, we examined the effect of iron on the gene expression regulation and function of cathepsin L-like and asparaginyl endopeptidase-like CPs as virulence factors. We addressed some important aspects about CPs genomic organization and ...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1995
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.63.9.3388-3395.1995