期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 80, 期 10, 页码 -出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-023-04914-5
关键词
Mycobacterium tuberculosis; Lipid metabolism; Lipid droplet; Anti-TB drugs; Drug tolerance; Drug efficacy
Lipid species have a crucial role in the growth and virulence expression of Mycobacterium tuberculosis. Alterations in lipid metabolites of both host and Mtb influence the efficacy of anti-TB drugs and contribute to drug tolerance. This review explores the relationship between lipids and drug efficacy in various Mtb infection models and suggests novel approaches to enhance drug effectiveness.
Lipid species play a critical role in the growth and virulence expression of Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB). During Mtb infection, foamy macrophages accumulate lipids in granulomas, providing metabolic adaptation and survival strategies for Mtb against multiple stresses. Host-derived lipid species, including triacylglycerol and cholesterol, can also contribute to the development of drug-tolerant Mtb, leading to reduced efficacy of antibiotics targeting the bacterial cell wall or transcription. Transcriptional and metabolic analyses indicate that lipid metabolism-associated factors of Mtb are highly regulated by antibiotics and ultimately affect treatment outcomes. Despite the well-known association between major antibiotics and lipid metabolites in TB treatment, a comprehensive understanding of how altered lipid metabolites in both host and Mtb influence treatment outcomes in a drug-specific manner is necessary to overcome drug tolerance. The current review explores the controversies and correlations between lipids and drug efficacy in various Mtb infection models and proposes novel approaches to enhance the efficacy of anti-TB drugs. Moreover, the review provides insights into the efficacious control of Mtb infection by elucidating the impact of lipids on drug efficacy. This review aims to improve the effectiveness of current anti-TB drugs and facilitate the development of innovative therapeutic strategies against Mtb infection by making reverse use of Mtb-favoring lipid species.
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