Evaluation of cytokine responses against novel Mtb antigens as diagnostic markers for TB disease.

Awoniyi, DO; Teuchert, A; Sutherland, JS; Mayanja-Kizza, H; Howe, R; Mihret, A; Loxton, AG; Sheehama, J; Kassa, D; Crampin, AC; Dockrell, HM; Kidd, M; Rosenkrands, I; Geluk, A; Ottenhoff, TH; Corstjens, PL; Chegou, NN; Walzl, G; AE-TBC Consortium, ; , COLLABORATORS; Walzl, G; Chegou, NN; Kriel, M; van der Spuy, G; Loxton, AG; Stanley, K; Malherbe, S; Mcanda, S; Kriel, B; Phalane, KG; Essone, P; Sutherland, JS; Owolabi, O; Sillah, A; Mendy, J; Gindeh, A; Donkor, S; Togun, T; Ota, M; Crampin, AC; Simukonda, F; Amberbir, A; Chilongo, F; Houben, R; Kassa, D; Gebrezgeabher, A; Mesfin, G; Belay, Y; Gebremichael, G; Alemayehu, Y; van der Vyver, M; Amutenya, FN; Nelongo, JN; Monye, L; Sheehama, JA; Iipinge, S; Mayanja-Kizza, H; Namuganga, AR; Muzanye, G; Nsereko, M; Peters, P; Howe, R; Mihret, A; Bekele, Y; Tessema, B; Yamuah, L; Ottenhoff, TH; Geluk, A; Franken, K; Corstjens, PL; Tjon Kon Fat, EM; de Dood, CJ; van der Ploeg-van Schip, JJ; Rosenkrands, I; Aagaard, C; Kaufmann, SH; Esterhuyse, MM; Cliff, JM; Dockrell, HM; (2016) Evaluation of cytokine responses against novel Mtb antigens as diagnostic markers for TB disease. The Journal of infection, 73 (3). pp. 219-30. ISSN 0163-4453 DOI: 10.1016/j.jinf.2016.04.036

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: We investigated the accuracy of host markers detected in Mtb antigen-stimulated whole blood culture supernatant in the diagnosis of TB.<br/> : Prospectively, blood from 322 individuals with presumed TB disease from six African sites was stimulated with four different Mtb antigens (Rv0081, Rv1284, ESAT-6/CFP-10, and Rv2034) in a 24 h whole blood stimulation assay (WBA). The concentrations of 42 host markers in the supernatants were measured using the Luminex multiplex platform. Diagnostic biosignatures were investigated through the use of multivariate analysis techniques.<br/> : 17% of the participants were HIV infected, 106 had active TB disease and in 216 TB was excluded. Unstimulated concentrations of CRP, SAA, ferritin and IP-10 had better discriminating ability than markers from stimulated samples. Accuracy of marker combinations by general discriminant analysis (GDA) identified a six analyte model with 77% accuracy for TB cases and 84% for non TB cases, with a better performance in HIV uninfected patients.<br/> : A biosignature of 6 cytokines obtained after stimulation with four Mtb antigens has moderate potential as a diagnostic tool for pulmonary TB disease individuals and stimulated marker expression had no added value to unstimulated marker performance.<br/>

Item Type: Article
Faculty and Department: Academic Services & Administration > Academic Administration
Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
Research Centre: TB Centre
PubMed ID: 27311746
Web of Science ID: 383380500005
URI: http://researchonline.lshtm.ac.uk/id/eprint/2551445

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