期刊
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
卷 696, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.abb.2020.108668
关键词
GDF15; Mitochondrial stress; Integrated stress response; Sepsis; Inflammation
资金
- Japan Society for Promotion of Science (JSPS) KAKENHI [JP17K01888, JP20K11525, JP20H04136]
Mitochondria are multifunctional organelles that regulate diverse cellular processes. Mitochondrial stress, including stress generated by electron transport chain defects and impaired mitochondrial proteostasis, is intimately involved in various diseases and pathological conditions. Sepsis is a life-threatening condition that occurs when an imbalanced host response to infection leads to organ dysfunction. Metabolic disturbances and impaired immune responses are implicated in the pathogenesis and development of sepsis. Given that mitochondria play central roles in cellular metabolism, mitochondrial stress is predicted to be involved in the pathological mechanism of sepsis. Under mitochondrial stress, cells activate stress response systems to maintain homeostasis. This mitochondrial stress response transcriptionally activates genes involved in cell survival and death. Mitochondrial stress also induces the release of distinctive secretory proteins from cells. Recently, we showed that growth differentiation factor 15 (GDF15) is a major secretory protein induced by mitochondrial dysfunction. In this article, we provide a brief overview of mitochondrial stress response and GDF15, and discuss the potential role of GDF15 in the pathophysiology of sepsis.
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