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Recombinant CFP-10 as antigen for diagnosis and quantification of IFN-γ expression by real-time PCR in guinea pigs sensitized with Mycobacterium bovis
Indian J Exp Biol ; 2018 Dec; 56(12): 883-891
Article | IMSEAR | ID: sea-190909
ABSTRACT
Culture filtrate protein (CFP-10) is a low molecular weight protein and is an early secretory protein in Mycobacterium tuberculosis culture filtrate and plays key roles in tuberculosis pathogenesis and in the stimulation of immunity. Keeping in view the important role of CFP10, we investigated the CFP10 gene in Indian Mycobacterium bovis (M. bovis) (3/86Rv) and its expression in suitable prokaryotic host for its diagnostics potential by single intradermal test (SID). Real-time PCR was used to quantify mRNA interferon-γ expression levels. The study concluded that the expression of IFN-γ mRNA in blood was found up to 19.962, 20.795, 9.633, 34.511 and 1.688 times in rCFP10, bovine PPD (purified protein derivative), avian PPD, conA and PBS stimulated groups, respectively as compared to healthy control group. The mRNA expression level of bovine PPD and avian PPD stimulated group was found statistically significant (at P <0.05) and among conA and rCFP10 stimulated group, it was highly significant (at P <0.01) in comparison to ‘without antigen stimulated’ group.
Full text: Available Index: IMSEAR (South-East Asia) Type of study: Diagnostic study Journal: Indian J Exp Biol Year: 2018 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Type of study: Diagnostic study Journal: Indian J Exp Biol Year: 2018 Type: Article