Journal
TUBERCULOSIS
Volume 128, Issue -, Pages -Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.tube.2021.102083
Keywords
Mycobacterium tuberculosis; Rifampin; Resistance; Susceptibility; Detection
Categories
Funding
- national nature science foundation of China [31700130, 31860706]
- Guizhou provincial education department [KY[2017]190]
- Guizhou Provincial Science and Technology Foundation [Qiankehe jichu [2019]1465]
- Zunyi Medical University Foundation for Doctor [F-860]
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Research has shown that rifampin resistance in Mycobacterium tuberculosis is mainly caused by mutations in the rpoB gene, and TB bacteria can resist drug pressure by reducing drug entry into cells, enhancing drug efflux, and exhibiting heterogeneous rifampin susceptibility. Current studies indicate that many genes are involved in influencing M. tuberculosis susceptibility to rifampin, suggesting that drug resistance in TB bacteria is very complex.
Tuberculosis (TB) is an infectious disease that poses a serious threat to human health. Rifampin (RIF) is an important first-line anti-TB drug, and rifampin resistance (RIF-R) is a key factor in formulating treatment regimen and evaluating the prognosis of TB. Compared with other drugs resistance, the RIF-R mechanism of Mycobacterium tuberculosis (M. tuberculosis) is one of the clearest, which is mainly caused by RIF resistance-related mutations in the rpoB gene. This provides a convenient condition for developing rapid detection methods, and also an ideal object for studying the general drug resistance mechanisms of M. tuberculosis. This review focuses on the mechanisms that influence the RIF resistance of M. tuberculosis and related detection methods. Besides the mutations in rpoB, M. tuberculosis can decrease the amount of drugs entering the cells, enhance the drugs efflux, and be heterogeneous RIF susceptibility to resist drug pressure. Based on the results of current researches, many genes participate in influencing the susceptibility to RIF, which indicates the phenomenon of M. tuberculosis drug resistance is very complex.
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