Antibodies reactive to Plasmodium falciparum serine repeat antigen in children with Burkitt lymphoma from Ghana

Simple item page
dc.contributor.authorGuech-Ongey M.
dc.contributor.authorYagi M.
dc.contributor.authorPalacpac N.M.Q.
dc.contributor.authorEmmanuel B.
dc.contributor.authorTalisuna A.O.
dc.contributor.authorBhatia K.
dc.contributor.authorStefan D.C.
dc.contributor.authorBiggar R.J.
dc.contributor.authorNkrumah F.
dc.contributor.authorNeequaye J.
dc.contributor.authorTougan T.
dc.contributor.authorHorii T.
dc.contributor.authorMbulaiteye S.M.
dc.date.accessioned2011-10-13T16:58:19Z
dc.date.available2011-10-13T16:58:19Z
dc.date.issued2011-10-13
dc.description.abstractThe role of protective immunity to Plasmodium falciparum (Pf) malaria in Burkitt lymphoma (BL) is unknown. We investigated the association between BL and antibodies reactive to SE36 antigen, a recombinant protein based on P. falciparum serine repeat antigen 5 gene, targeted by protective malaria immune responses. Cases were children (0-14 years) enrolled at the Korle-Bu Teaching Hospital, Accra, Ghana, during 1965-1994 with BL confirmed by histology or cytology (92% of cases). Controls were apparently healthy children enrolled contemporaneous to the cases from the nearest neighbor house to the case house and were age,- sex-frequency-matched to the cases. Anti-SE36 IgG antibodies were measured using enzyme-linked absorbent immunoassays (ELISAs). SE36 titers were estimated by extrapolating ELISA optical density readings to a standard fitting curve. Anti-SE36 titers were log-transformed for analysis. Odds ratios (ORs) and two-sided 95% confidence intervals (95% CIs) were estimated using unconditional logistic regression. The mean log endpoint dilution titers were 0.63 logs lower in cases than in controls (8.26 [SD 1.68] vs. 8.89 [SD 1.75], Student's t-test, p = 0.019). Lower titers were observed in cases than controls aged 0-4 years (p = 0.05) and in those aged 5-14 years (p = 0.06). Low and medium tertiles of anti-SE36 IgG antibodies were associated with increased OR for BL ([OR 1.67, 95% CI 1.21-2.31] and [OR 1.33, 95% CI 0.96-1.86], respectively, ptrend = 0.002) in analyses adjusting for age, sex, calendar period and test plate. Our findings suggest that compared to similarly aged children enrolled from the same community, children with BL in Ghana have lower antibodies to SE36 antigen. © 2011 UICC.
dc.description.versionArticle in Press
dc.identifier.citationInternational Journal of Cancer
dc.identifier.citation7
dc.identifier.citation6
dc.identifier.citationhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79961164635&partnerID=40&md5=a633f5fa7ed8a082ea6f6279bd031085
dc.identifier.issn207136
dc.identifier.other10.1002/ijc.26203
dc.identifier.urihttp://hdl.handle.net/10019.1/16682
dc.subjectAfrica
dc.subjectEpidemiology
dc.subjectEpstein-Barr virus
dc.subjectImmunity
dc.subjectPlasmodium falciparum malaria
dc.titleAntibodies reactive to Plasmodium falciparum serine repeat antigen in children with Burkitt lymphoma from Ghana
dc.typeArticle in Press
Files
Collections
Stellenbosch University - Scopus Publications