Impaired Tetanus-Specific Cellular and Humoral Responses following Tetanus Vaccination in Human Onchocerciasis: A Possible Role for Interleukin-10

Onchocerca volvulus infection has been associated with impaired cellular responses to parasite antigens, an impairment that may also extend to nonparasite antigens. To investigate the mechanism of this impaired immune response, the effect of concurrent O. volvulus infection on the immune response to...

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Published inThe Journal of infectious diseases Vol. 178; no. 4; pp. 1133 - 1138
Main Authors Cooper, P. J., Espinel, I., Paredes, W., Guderian, R. H., Nutman, T. B.
Format Journal Article
LanguageEnglish
Published Chicago, IL The University of Chicago Press 01.10.1998
University of Chicago Press
Oxford University Press
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Summary:Onchocerca volvulus infection has been associated with impaired cellular responses to parasite antigens, an impairment that may also extend to nonparasite antigens. To investigate the mechanism of this impaired immune response, the effect of concurrent O. volvulus infection on the immune response to tetanus toxoid (TT) following tetanus vaccination was studied. The proliferative, cytokine, and antibody response to TT of O. volvulus—infected subjects (n = 19) and comparable noninfected controls (n = 20) were studied before and 6 months after vaccination with TT. Following vaccination, antibody levels, proliferative responses, and levels of interferon-γ were significantly greater in noninfected subjects (P < .05, .001, and .05, respectively); however, infected subjects produced interleukin-10, but noninfected controls did not (P < .001). These studies indicate that concurrent infection with O. volvulus can diminish the immune response to an unrelated antigen (TT) by a mechanism that is likely to involve interleukin—10.
Bibliography:istex:D08B623E4D23861C1EA5CCECDE9C20299125B5D9
ark:/67375/HXZ-8M8X03SC-4
Informed consent was obtained from all subjects, and procedures were explained in the local language. The study was done under protocols approved by NIH and Hospital Vozandes, Quito, Ecuador.
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ISSN:0022-1899
1537-6613
DOI:10.1086/515661