Int J Med Sci
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Background: The mechanisms of gastric cancer (GC) occurrence and development are still unclear. Although glycosyltransferase 8 domain containing 1 (GLT8D1) has been implicated in GC, its specific role and molecular mechanisms in GC progression need to be further investigated. Methods: Tissue microarrays were used to detect the expression levels of GLT8D1 in 80 GC tissues and their corresponding non-tumor adjacent tissues. ⋯ Further researches demonstrated that protein tyrosine phosphatase non-receptor type 6 (PTPN6), a downstream target of GLT8D1, has the capacity to modulate the activity of the JAK2/STAT3 signaling pathway. Conclusions: Our study indicated that GLT8D1 expression was upregulated in GC tissues and correlated with poor prognosis. We reveal a potential molecular mechanism by which GLT8D1 promotes GC progression.
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Synuclein family members (Snca, Sncb, and Scng) are expressed in the retina, but their precise locations and roles are poorly understood. We performed an extensive analysis of the single-cell transcriptome in healthy and injured retinas to investigate their expression patterns and roles. We observed the expression of all synuclein family members in retinal ganglion cells (RGCs), which remained consistent across species (human, mouse, and chicken). ⋯ However, the proportion of α-Syn-positive RGCs in all RGCs and α-Syn-positive intrinsically photosensitive retinal ganglion cells (ipRGCs) in all ipRGCs remained unaltered. Lastly, we identified changes in communication patterns preceding cell death, with particular significance in the pleiotrophin-nucleolin (Ptn-Ncl) and neural cell adhesion molecule signaling pathways, where communication differences were pronounced between cells with varying expression levels of Snca. Our study employs an innovative approach using scRNA-seq to characterize synuclein expression in health retinal cells, specifically focusing on RGC subtypes, advances our knowledge of retinal physiology and pathology.
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This study aims to elucidate the roles of Phosphoglycerate Mutase Family Member 5 (Pgam5) and Prohibitin 2 (Phb2) in the context of hyperglycemia-induced myocardial dysfunction, a critical aspect of diabetic cardiomyopathy. The research employed primary cardiomyocytes, which were then subjected to hyperglycemia treatment to mimic diabetic conditions. We used siRNA transfection to knock down Pgam5 and overexpressed Phb2 using adenovirus transfection to assess their individual and combined effects on cardiomyocyte health. ⋯ The study elucidates the critical roles of Pgam5 and Phb2 in regulating mitochondrial dynamics in the setting of hyperglycemia-induced myocardial dysfunction. By modulating mitochondrial fission and mitophagy, Pgam5 and Phb2 emerge as key players in preserving mitochondrial integrity and cardiomyocyte health under diabetic conditions. These findings contribute significantly to our understanding of the molecular mechanisms underlying diabetic cardiomyopathy and suggest potential therapeutic targets for mitigating myocardial dysfunction in diabetes.
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Introduction: Clinical studies have shown that endodontically-treated nonvital teeth exhibit less root resorption during orthodontic tooth movement. The purpose of this study was to explore whether hypoxic dental pulp stem cells (DPSCs) can promote osteoclastogenesis in orthodontically induced inflammatory root resorption (OIIRR). Methods: Succinate in the supernatant of DPSCs under normal and hypoxic conditions was measured by a succinic acid assay kit. ⋯ SUCNR1 knockout decreased macrophage migration, M1 macrophage polarization, differentiation and maturation of osteoclasts, as shown by TRAP and NFATc1 expression and cementum resorption. Conclusions: Hypoxic DPSC-derived succinate may promote osteoclast differentiation and root resorption. The regulation of the succinate-SUCNR1 axis may contribute to the reduction in the OIIRR.
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Background: Chronic Kidney Disease (CKD) is a systemic progressive disorder related to uremic toxins. Uremic toxins disturb intestinal epithelial destruction and barrier dysfunction leading to gut-renal axis disorders in CKD. We examine the protective role of Resveratrol (RSV) against uremic toxin indoxyl sulphate (IS) related intestinal barrier disturbances among CKD. ⋯ This study establishes RSV as a potential therapeutic agent that can ameliorate gut-renal axis disturbances in CKD. These findings provide valuable insights into mechanisms underlying RSV RSV-mediated gut-renal axis, highlighting its effectiveness as a potential treatment option for CKD-associated intestinal barrier dysfunction.