Journal
LIPIDS IN HEALTH AND DISEASE
Volume 19, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12944-020-01210-0
Keywords
Endoplasmic reticulum stress; Non-alcoholic fatty liver disease; Mitochondria-associated membrane; Oxidative stress; Calcium ion homeostasis
Funding
- Science and Technology Planning Project of Yunfu, Guangdong, China [201702-9]
- Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, China [2017GCZX002]
- Science and Technology Planning Project of Guangdong, China [201806040009, 201804010349, 201804010329]
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Nonalcoholic fatty liver disease (NAFLD) is a common metabolic syndrome. Imbalances between liver lipid output and input are the direct causes of NAFLD, and hepatic steatosis is the pathological premise and basis for NAFLD progression. Mutual interaction between endoplasmic reticulum stress (ERS) and oxidative stress play important roles in NAFLD pathogenesis. Notably, mitochondria-associated membranes (MAMs) act as a structural bridges for functional clustering of molecules, particularly for Ca2+, lipids, and reactive oxygen species (ROS) exchange. Previous studies have examined the crucial roles of ERS and ROS in NAFLD and have shown that MAM structural and functional integrity determines normal ER- mitochondria communication. Upon disruption of MAM integrity, miscommunication directly or indirectly causes imbalances in Ca2+ homeostasis and increases ERS and oxidative stress. Here, we emphasize the involvement of MAMs in glucose and lipid metabolism, chronic inflammation and insulin resistance in NAFLD and summarize MAM-targeting drugs and compounds, most of which achieve their therapeutic or ameliorative effects on NAFLD by improving MAM integrity. Therefore, targeting MAMs may be a viable strategy for NAFLD treatment. This review provides new ideas and key points for basic NAFLD research and drug development centred on mitochondria and the endoplasmic reticulum.
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