The common Cryptococcus neoformans glucuronoxylomannan M2 motif elicits non-protective antibodies
نویسندگان
چکیده
منابع مشابه
Monoclonal antibodies reveal additional epitopes of serotype D Cryptococcus neoformans capsular glucuronoxylomannan that elicit protective antibodies.
Epitope specificity and isotype influence mAb efficacy against Cryptococcus neoformans; however, the relative contribution of each attribute is poorly understood. To date, only mAbs that recognize two epitopes of capsular glucuronoxylomannan (GXM), defined by the IgG1 mAbs 2H1 and E1, consistently mediate protection against C. neoformans. The role of epitope specificity was further examined usi...
متن کاملMonoclonal antibodies reactive with immunorecessive epitopes of glucuronoxylomannan, the major capsular polysaccharide of Cryptococcus neoformans.
Cryptococcus neoformans is surrounded by an antiphagocytic capsule whose primary constituent is glucuronoxylomannan (GXM). An epitope shared by GXM serotypes A, B, C, and D is immunodominant when mice are immunized with serotype A GXM. In contrast, an epitope shared only by serotypes A and D is immunodominant when mice are immunized with serotype D. Hybridomas secreting antibodies reactive with...
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BACKGROUND Cryptococcus neoformans is a widely disseminated fungus shown to be responsible for infections in individuals with impaired cell mediated immunity, such as patients with human immunodeficiency virus (HIV). Cryptococcus neoformans has a polysaccharide capsule composed of glucuronoxylomannan (GXM), which acts as a major virulence factor and is considered to be a thymus independent type...
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Cryptococcus neoformans, the etiological agent of cryptococcosis, is an occasional opportunistic fungal pathogen of immune competent individuals. However, it is a relatively frequent cause of life-threatening meningoencephalitis and pulmonary infections in immunosuppressed hosts and is a leading mycological cause of morbidity and mortality among patients with AIDS in most parts of the world. Th...
متن کاملGlucuronoxylomannan, the major capsular polysaccharide of Cryptococcus neoformans, inhibits the progression of group B streptococcal arthritis.
Glucuronoxylomannan (GXM), the principal constituent of the Cryptococcus neoformans capsule, modulates the inflammatory response of human monocytes in vitro. Here we examine the efficacy of GXM as a novel anti-inflammatory compound for use against experimental septic arthritis. Arthritis was induced in mice by the intravenous injection of 8 x 10(6) CFU of type IV group B streptococcus (GBS). GX...
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ژورنال
عنوان ژورنال: Vaccine
سال: 2009
ISSN: 0264-410X
DOI: 10.1016/j.vaccine.2009.03.089