Abstract
Drug-resistance and inadequacies of antimicrobial therapy are barriers to tuberculosis (TB) elimination. Recent interest has focused on the concept of using small molecule drugs to harness endogenous defence mechanisms that could, when combined with anti-tubercular therapy (ATT), tilt the host-pathogen equilibrium in TB lesions towards resolution with minimal tissue damage. Metformin is an ideal candidate for such host-directed therapy (HDT), as it has low cost with an excellent safety profile and low induction of cytochrome p450 (CYP) enzymes. The pleiotropic properties of metformin suggest that the drug acts on multiple tissues through various underlying mechanisms and distinct interacting partners. Here, we discuss the current preclinical and clinical data demonstrating the TB-HDT capability of metformin.
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Acknowledgement
This research was supported by SIgN A*STAR and NIH Grant (#R01HL081149 to HK, #R01HL152078 to AS and HK).
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Singhal, A., Kornfeld, H. (2021). Metformin: A Leading HDT Candidate for TB. In: Karakousis, P.C., Hafner, R., Gennaro, M.L. (eds) Advances in Host-Directed Therapies Against Tuberculosis . Springer, Cham. https://doi.org/10.1007/978-3-030-56905-1_7
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