Mitochondrial stress response in drug-induced liver injury
Jing Zheng1,2, Qiulin Yuan1, Cao Zhou1
1Department of Microbiology and Immunology, The Institute of Infection and Inflammation, Medical College, China Three Gorges University, No. 8 DaXue Road, Yichang, 443002, Hubei, China.
Abstract:
Drug-induced liver injury (DILI) caused by the ingestion of medications, herbs, chemicals or dietary supplements, is a clinically widespread health problem. The underlying mechanism of DILI is the formation of reactive metabolites, which trigger mitochondrial oxidative stress and the opening of mitochondrial permeability transition (MPT) pores through direct toxicity or immune response, leading to cell inflammation, apoptosis, and necrosis. Traditionally, mitochondria play an indispensable role in maintaining the physiological and biochemical functions of cells by producing ATP and mediating intracellular signal transduction; drugs can typically stimulate the mitochondria and, in the case of sustained stress, can eventually cause impairment of mitochondrial function and metabolic activity. Meanwhile, the mitochondrial stress response, as an adaptive protective mechanism, occurs when mitochondrial homeostasis is threatened. In this review, we summarize the relevant frontier researches of the protective effects of mitochondrial stress response in DILI as well as the potential related mechanisms, thus providing some thoughts for the clinical treatment of DILI.
Insights
Drug-induced liver injury (DILI) involves reactive metabolites damaging mitochondria. The mitochondrial stress response may offer protective effects against DILI, guiding clinical treatments.
Area of Science:
- Biochemistry
- Cell Biology
- Toxicology
Background:
- Drug-induced liver injury (DILI) is a common health issue stemming from various ingested substances.
- DILI mechanisms involve reactive metabolites, mitochondrial oxidative stress, and permeability transition pore opening, leading to cell death.
- Mitochondria are vital for cellular ATP production and signaling, but susceptible to drug-induced impairment.
Purpose of the Study:
- To review current research on the protective role of the mitochondrial stress response in DILI.
- To explore potential mechanisms underlying the protective effects of mitochondrial stress response in DILI.
- To offer insights for the clinical management of DILI.
Main Methods:
- Literature review of frontier research on mitochondrial stress response in DILI.
- Analysis of studies detailing the mechanisms of DILI and mitochondrial involvement.
- Synthesis of findings to connect mitochondrial stress response to DILI protection.
Main Results:
- Mitochondrial stress response acts as an adaptive mechanism against cellular damage when homeostasis is threatened.
- Drug-induced stress can impair mitochondrial function, but the stress response may mitigate this.
- Research highlights the potential of targeting mitochondrial pathways for DILI treatment.
Conclusions:
- The mitochondrial stress response shows promise as a protective factor against DILI.
- Understanding these mechanisms can inform novel therapeutic strategies for DILI.
- Further research into mitochondrial protection could revolutionize DILI treatment.
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