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Investigation of the Mesencephalic Astrocyte Derived Neurotrophic Factor-Endoplasmic Reticulum Stress Pathway in Mood Disorders.
Int J Neuropsychopharmacol
January 2025
Centre for Clinical Neurosciences, McMaster University, Hamilton, ON.
Background: Bipolar disorder (BD) has been associated with impaired cellular resilience. Recent studies have shown abnormalities in the unfolded protein response (UPR) in BD. The UPR is the cellular response to endoplasmic reticulum (ER) stress.
View Article and Find Full Text PDFUnlabelled: The integrity of the hematopoietic stem cell (HSC) pool relies on efficient long-term self-renewal and the timely removal of damaged or differentiation-prone HSCs. Previous studies have demonstrated the PERK branch of the unfolded protein response (UPR) drives specific programmed cell death programs to maintain HSC pool integrity in response to ER stress. However, the role of PERK in regulating HSC fate remains unclear.
View Article and Find Full Text PDFExploiting Mitochondria by Triggering a Faulty Unfolded Protein Response Leads to Effective Cardioprotection.
Int J Med Sci
January 2025
Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
This study investigates the role of Fundc1 in cardiac protection under high-altitude hypoxic conditions and elucidates its underlying molecular mechanisms. Using cardiomyocyte-specific knockout ( ) mice, we demonstrated that deficiency exacerbates cardiac dysfunction under simulated high-altitude hypoxia, manifesting as impaired systolic and diastolic function. Mechanistically, we identified that Fundc1 regulates cardiac function through the mitochondrial unfolded protein response (mito-UPR) pathway.
View Article and Find Full Text PDFUnderstanding the impact of ER stress on lung physiology.
Front Cell Dev Biol
December 2024
Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
Human lungs consist of a distinctive array of cell types, which are subjected to persistent challenges from chemical, mechanical, biological, immunological, and xenobiotic stress throughout life. The disruption of endoplasmic reticulum (ER) homeostatic function, triggered by various factors, can induce ER stress. To overcome the elevated ER stress, an adaptive mechanism known as the unfolded protein response (UPR) is activated in cells.
View Article and Find Full Text PDFSynthesis and structural modification of the natural product Ivesinol to discover novel autophagy activators.
Eur J Med Chem
February 2025
Department of Oncology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400021, China. Electronic address:
Autophagy is a lysosome-dependent cellular degradation pathway that responds to a variety of environmental and cellular stresses, which is defective in aging and age-related diseases, therefore, targeting autophagy with small-molecule activators has potential therapeutic benefits. In this study, we successfully completed the first total synthesis of Ivesinol, an identified antibacterial natural product, and efficiently constructed a library of its analogs. To measure the effect of Ivesinol analogs on autophagic activity, we performed cell imaging-based screening approach, and observed that several Ivesinol analogs exhibited potent autophagy-regulating activity.
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