Mitochondrial autophagy (mitophagy) is a central catabolic event for mitochondrial quality control. Defective or insufficient mitophagy, thus, can result in mitochondrial dysfunction, and ultimately cell death. There is a strong causal relationship between ischemia/reperfusion (I/R) injury and mitochondrial dysfunction following liver resection and transplantation. Compared to young patients, elderly patients poorly tolerate I/R injury. Accumulation of abnormal mitochondria after I/R is more prominent in aged livers than in young counterparts. This review highlights how altered autophagy is mechanistically involved in age-dependent hypersensitivity to reperfusion injury.
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http://dx.doi.org/10.3390/cells11244083 | DOI Listing |
Circ Heart Fail
March 2025
Division of Cardiovascular Medicine, School of Medicine, University of California San Diego, La Jolla. (K.F., P.D., J.B., M.C., E.E., Y. Chan, Y.G., V.A.D., V.M., N.D.D., A.D., M.K., K.L.P., F.S., Y. Cho, S.L.).
Background: Muscle proteins of the obscurin protein family play important roles in sarcomere organization and sarcoplasmic reticulum and T-tubule architecture and function. However, their precise molecular functions and redundancies between protein family members as well as their involvement in cardiac diseases remain to be fully understood.
Methods: To investigate the functional roles of Obsc (obscurin) and its close homolog Obsl1 (obscurin-like 1) in the heart, we generated and analyzed knockout mice for , , as well as double knockouts.
Front Pharmacol
February 2025
Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, South China Institute of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, China.
Background: Ferroptosis is an intracellular iron-dependent cell death that is distinct from apoptosis, necrosis, and autophagy. Increasing evidence indicated that ferroptosis plays a crucial role in suppressing tumors, thus providing new opportunities for cancer therapy. The drug cepharanthine, commonly used to treat leukopenia, has been discovered to function as an anticancer agent to multiple types of cancer via diverse mechanisms.
View Article and Find Full Text PDFSheng Li Xue Bao
February 2025
Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
Cardiovascular disease remains the leading cause of death in China, with its morbidity and mortality continue to rise. Ferroptosis, a unique form of iron-dependent cell death, plays a major role in many heart diseases. The classical mechanisms of ferroptosis include iron metabolism disorder, oxidative antioxidant imbalance and lipid peroxidation.
View Article and Find Full Text PDFCell Discov
March 2025
Faculty of Healthy Sciences, Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Macau, China.
PTEN-induced kinase-1 (PINK1) is a crucial player in selective clearance of damaged mitochondria via the autophagy-lysosome pathway, a process termed mitophagy. Previous studies on PINK1 mainly focused on its post-translational modifications, while the transcriptional regulation of PINK1 is much less understood. Herein, we reported a novel mechanism in control of PINK1 transcription by SMAD Family Member 3 (SMAD3), an essential component of the transforming growth factor beta (TGFβ)-SMAD signaling pathway.
View Article and Find Full Text PDFInflammopharmacology
March 2025
University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies (UGC-CAS), Panjab University, Chandigarh, 160014, India.
Background: Alzheimer's disease (AD), one of the most common neurodegenerative disorders, is characterised by hallmark abnormalities such as amyloid-β plaques and neurofibrillary tangles (NFTs). Emerging evidence suggests that faulty insulin signalling contributes to these pathological features, impairing critical cellular and metabolic processes.
Objective: This review aims to elucidate the role of insulin signalling in the central nervous system (CNS) under normal and pathological conditions and to explore therapeutic approaches targeting insulin pathways in AD and other neurodegenerative diseases.
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