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Galectin-3 induces vascular smooth muscle cells calcification via AMPK/TXNIP pathway
In this study, we evaluated the role of TXNIP in galectin-3-induced vascular calcification. A primary culture of mouse VSMCs was established by enzymatic digestion of aorta. Small interfering (si) RNA was used to knock down the expression of target gene. VSMCs were treated with 3-methyladenine (3-MA) or compound C respectively. Western blot was performed to detect the protein level in VSMCs, Alkaline phosphatase (ALP) and Alizarin red staining was used to observe calcium deposition. Dihydroethidium (DHE) staining was used to observe the reactive oxygen species (ROS) production. Here we showed that galectin-3 increased aort...
Source: Aging - June 30, 2022 Category: Biomedical Science Authors: Lei Tian Yong Wang Ruiyan Zhang Source Type: research

Maintenance of cellular annexin A1 level is essential for PI3K/AKT/mTOR-mediated proliferation of pancreatic beta cells
This study identified a positive correlation between AnxA1 protein and pancreatic β-cell proliferation. AnxA1 protein expression might affect the proliferation of MIN6 cells via regulation of cyclin D1, cyclin E, and CDK2 proteins, as well as the PI3K/Akt/mTOR signaling pathway.PMID:34092075 | DOI:10.23812/20-417-A
Source: Journal of Biological Regulators and Homeostatic Agents - June 7, 2021 Category: Biomedical Science Authors: Z Y Gu X Y Miao L C Ma J J Gao Y P Gong C L Li Source Type: research

The Role of Melanotransferrin (CD228) in the regulation of the differentiation of Human Bone Marrow-Derived Mesenchymal Stem Cells (hBM-MSC)
We examined a possible role for CD228 in the regulation of osteogenesis and adipogenesis of hBM-MSC. Surprisingly, siRNA-mediated CD228 knockdown increased the expression of the transcription factor DLX5 and enhanced osteogenesis of hBM-MSC evidenced by an increased expression of the runt-related transcription factor 2 (RUNX2), osterix (Osx), and osteocalcin (OC), as well as higher alkaline phosphatase (ALP) activity and extracellular calcium deposition. Interestingly, hBM-MSC transfected with CD228 siRNA also showed an increase in intracellular lipid level during adipogenesis, indicated by oil red O staining of differenti...
Source: International Journal of Medical Sciences - March 22, 2021 Category: Biomedical Science Authors: Maria Dubon Sooho Lee Ji-Hong Park Jae-Yong Lee Dongchul Kang Source Type: research

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