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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2015, Vol. 20 ›› Issue (3): 356-360.

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Mitochondria dysfunction is involved in the pathogenesis of isoniazid-induced hepatotoxicity

GUO Yao-xue1,2,3, DENG Ye1,2,3, LI Chun1,2,3, HE Lei-yan1,2,3, PENG Wen-xing1,2   

  1. 1Department of Pharmacy, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan,China;
    2Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan,China;
    3School of Pharmaceutical Sciences of Central South University, Changsha 410013, Hunan,China
  • Received:2014-06-05 Revised:2014-09-29 Published:2015-04-08

Abstract: Emerging evidence shows mitochondria dysfunction is one of the mechanisms of various liver injury, such as liver failure, cirrhosis and adipose infiltration, especially drug induced liver injury (DILI). Isoniazid is widely used in anti-tuberculosis (anti-TB) treatment but well known for the apparent liver injury which sometimes limit the efficacy of anti-TB regimen. There is growing evidence that mitochondria dysfunction is critial in INH-induced DILI. INH and its toxic metabolites induced oxidant stress of mitochondria, inhibition of respiratory chain enzymes and impairment of energy homeostasis, disruption of mitochondria membrane, finally led to mitochondria dysfunction and triggered apoptosis. This review discusses this emerging new paradigms of INH-induced DILI and highlights recent insights of sub-cell level in the mechanisms, as well as points to the existing large gaps in our understanding of the pathogenesis.

Key words: isoniazid, drug induced liver injury, mitochondria dysfunction

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