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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Praziquantel treatment of individuals exposed to Schistosoma haematobium enhances serological recognition of defined parasite antigens
Journal of Infectious Diseases, Volume 192, No. 6, Year 2005
Notification
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Description
Background. Schistosomiasis is a major parasitic disease affecting >200 million people in the developing world, and 400 million people are at risk for infection. This study aimed to identify and compare proteins recognized by serum samples from schistosome-exposed individuals before and after curative praziquantel treatment. Methods. Proteins recognized by pooled serum samples from Schistosoma haematobium-exposed Zimbabweans were determined by 2-dimensional Western blotting and identified by mass spectrometry. Results. Serum samples recognized 71 spots, which resolved to 26 different characterized proteins. Eleven of these proteins have not previously been shown to be immunogenic in natural human infection or in experimental models of schistosomiasis, making them novel antigens in the parasite. Pretreatment serum samples recognized 59 spots, which resolved to 21 different identified proteins. Posttreatment serum samples recognized an additional 12 spots, which resolved to 8 different identified proteins. Of these 8 proteins, 3 had putative isoforms recognized before treatment, and 5 (calreticulin, tropomyosin 1, tropomyosin 2, paramyosin, and triose phosphate isomerase) did not. Conclusions. This study is the most comprehensive characterization of S. haematobium antigens to date and describes novel antigens in all schistosome species. Posttreatment results are consistent with praziquantel treatment inducing quantitative and qualitative changes in schistosome-specific antibody responses. © 2005 by the Infectious Diseases Society of America. All rights reserved.
Authors & Co-Authors
Mutapi, Francisca
Unknown Affiliation
Burchmore, Richard J.
Unknown Affiliation
Mduluza, Takafira
Unknown Affiliation
Foucher, Aude
Unknown Affiliation
Harcus, Yvonne M.
Unknown Affiliation
Nicoll, Gavin
Unknown Affiliation
Midzi, Nicholas
Unknown Affiliation
Turner, Charles Michael R.
Unknown Affiliation
Maizels, Rick M.
Unknown Affiliation
Statistics
Citations: 102
Authors: 9
Affiliations: 6
Identifiers
Doi:
10.1086/432553
ISSN:
00221899
Research Areas
Infectious Diseases
Study Approach
Qualitative
Quantitative