Trypanosome variant surface glycoproteins are recognized by self-reactive antibodies in uninfected hosts

Autor: Thomas Seebeck, Norbert Müller, J. M. Mansfield
Rok vydání: 1996
Předmět:
Zdroj: Infection and Immunity. 64:4593-4597
ISSN: 1098-5522
0019-9567
DOI: 10.1128/iai.64.11.4593-4597.1996
Popis: The variant surface glycoproteins (VSGs) of African trypanosomes form a dense surface coat on the bloodstream parasites. VSGs are immunodominant antigens that stimulate a rapid antibody response in trypanosome-infected individuals. In the present study, we examined VSG-specific antibodies present not only in sera from infected individuals but also in sera from individuals that had never been exposed to trypanosomes. Native antibodies against different VSGs were detected in sera from uninfected mice, bovines, and humans; the antibodies were revealed to be exclusively directed against variable determinants of the antigens. Further experimentation demonstrated that such native antibodies immunoreact with cellular components of mice and thus are most likely produced by the self-reactive B-cell compartment of the murine immune system.
Databáze: OpenAIRE