A wide variety of agents have been traditionally used in cardiovascular medicine worldwide and their precise mechanisms of action have been demonstrated to be largely related to the cardiomyocyte mitochondria and apoptosis. Abnormalities in the structure and function of the mitochondria and mutations in mitochondrial DNA can decrease energy production, alter the redox system, impair calcium homeostasis, and induce the mitochondrial permeability transition pore (MPTP), causing cell death. All of these data provide evidence of mitochondrial signaling pathways as targets to downregulate cardiac cell apoptosis and thus to prevent and treat cardiovascular diseases. This review focuses on the protective roles of various agents, mostly natural compounds, which express beneficial effects on mitochondrial function and suspend the apoptotic signaling mechanisms by modulating the activity of mitogen-activated protein kinases (MAPKs). Examining cellular and molecular targets of these agents offers essential experimental information for future pharmacological studies, drug discovery, clinical trials and applications.
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http://dx.doi.org/10.2174/1381612822666161229150120 | DOI Listing |
Oncol Res
January 2025
Department of Physiology, China Medical University, Taichung, 404328, Taiwan.
Objectives: Mitochondrial Ca uniporter (MCU) provides a Ca influx pathway from the cytosol into the mitochondrial matrix and a moderate mitochondrial Ca rise stimulates ATP production and cell growth. MCU is highly expressed in various cancer cells including breast cancer cells, thereby increasing the capacity of mitochondrial Ca uptake, ATP production, and cancer cell proliferation. The objective of this study was to examine MCU inhibition as an anti-cancer mechanism.
View Article and Find Full Text PDFMater Horiz
January 2025
Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru 560064, Karnataka, India.
Enzyme-instructed self-assembly (EISA) is a promising approach to anti-cancer therapeutics due to its precise targeting and unique cell death mechanism. In this study, we introduce a small molecule, DN6, which undergoes nitroreductase (NTR)-responsive liquid-liquid phase separation (LLPS) followed by a liquid-to-solid phase transition (LST) through a gel-like intermediate state, resulting in the formation of nanoaggregates with spatiotemporal control. The reduced form of DN6 (DN6R), owing to its aggregation-induced emission (AIE) and mitochondria-targeting capabilities, has been employed for organelle-specific imaging of tumor hypoxia.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Basis Dis
January 2025
Department of Public Health Genomics, Centre for DNA Repair and Genome Stability (CDRGS), Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India. Electronic address:
Mammalian sirtuins are class III histone deacetylases involved in the regulation of multiple biological processes including senescence, DNA repair, apoptosis, proliferation, caloric restriction, and metabolism. Among the mammalian sirtuins, SIRT3, SIRT4, and SIRT5 are localized in the mitochondria and collectively termed the mitochondrial sirtuins. Mitochondrial sirtuins are NAD+-dependent deacetylases that play a central role in cellular metabolism and function as epigenetic regulators by performing post-translational modification of cellular proteins.
View Article and Find Full Text PDFInt Immunopharmacol
January 2025
School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China. Electronic address:
Callistephus chinensis Nees is an herbaceous plant in the Asteraceae family that has various traditional effects, especially in preventing liver disease. Callistephus A (CA) is a sesquiterpene compound with a rare 6/7 ring skeleton, which has been isolated only from the Callistephus chinensis Nees, but whether CA protects the liver is unknown. Immunological liver injury (ILI) is a common liver disease mediated by the immune system.
View Article and Find Full Text PDFJ Cardiovasc Transl Res
January 2025
Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China.
HFpEF is a prevalent and complex type of heart failure. The concurrent presence of conditions such as obesity, hypertension, hyperglycemia, and hyperlipidemia significantly increase the risk of developing HFpEF. Mitochondria, often referred to as the powerhouses of the cell, are crucial in maintaining cellular functions, including ATP production, intracellular Ca regulation, reactive oxygen species generation and clearance, and the regulation of apoptosis.
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