Abstract
Interferon-γ (IFN-γ) is an essential pro-inflammatory cytokine against tuberculosis (TB). To initiate immune response, IFN-γ binds to its receptor complex which consists of two subunits IFN-γ receptor 1 (IFN-γR1) and IFN-γ receptor 2 (IFN-γR2). The deficiency in either receptor subunit can alter IFN-γ signalling thus influencing host susceptibility to TB. In the present study IFN-γ receptor expression at transcriptional and translational level was analysed in pulmonary TB patients from North India. A total of 46 pulmonary TB patients (at 0 day of anti-tuberculosis therapy) and 48 healthy controls (HCs) were recruited. It was found that the mRNA expression of IFN-γR1 was decreased in male TB patients (p = 0.003). The surface expression of IFN-γR1 (p = 0.0005) and IFN-γR2 (p = 0.024) was also found to be decreased in male TB patients. In conclusion, we found sex-dependent regulation of IFN-γR1 and IFN-γR2 expression in pulmonary TB patients of studied population.
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