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Bone marrow mesenchymal stem cell-derived extracellular vesicles alleviate diabetes-exacerbated atherosclerosis via AMPK/mTOR pathway-mediated autophagy-related macrophage polarization.
Cardiovasc Diabetol
January 2025
Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No.2 Anzhen Road, Chaoyang District, 100029, Beijing, China.
Introduction: Bone marrow-derived mesenchymal stem cell-derived extracellular vesicles (BMSC-EVs) are widely used for therapeutic purposes in preclinical studies. However, their utility in treating diabetes-associated atherosclerosis remains largely unexplored. Here, we aimed to characterize BMSC-EV-mediated regulation of autophagy and macrophage polarization.
View Article and Find Full Text PDFNew Perspective of the Persistent Gender and Diversity Gap in Nobel Prizes.
J Neurosci
January 2025
Department of Biology, University of Puerto Rico-Rio Piedras, San Juan 00926, Puerto Rico
Despite significant strides in gender equity, the Nobel Prizes in STEM fields continue to exhibit glaring disparities in the recognition of women's contributions to science. Thirty years ago, only 3% of Nobel laureates in science were women; today, that number has increased marginally to 4%, raising the critical question: Why "still" so few? This opinion piece examines systemic inequities and structural barriers that hinder the equitable acknowledgment of women's and underrepresented groups' contributions to science. Data reveal that while women now comprise a significant proportion of degree recipients and workforce entrants in fields such as biomedical research and chemistry, their representation among Nobel laureates remains disproportionately low.
View Article and Find Full Text PDFTemozolomide-Promoted MGMT Transcription Contributes to Chemoresistance by Activating the ERK Signalling Pathway in Malignant Melanoma.
J Cell Mol Med
February 2025
Department of Chemotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China.
Tumour cells possess a multitude of chemoresistance mechanisms, which could plausibly contribute to the ineffectiveness of chemotherapy. O-methylguanine-DNA methyltransferase (MGMT) is an important effector protein associated with Temozolomide (TMZ) resistance in various tumours. To some extent, the expression level of MGMT determines the sensitivity of cells to TMZ, but the mechanism of its expression regulation has not been fully elucidated.
View Article and Find Full Text PDFAirway Basal Stem Cells Inflammatory Alterations in COVID-19 and Mitigation by Mesenchymal Stem Cells.
Cell Prolif
January 2025
State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
SARS-CoV-2 infection and the resultant COVID-19 pneumonia cause significant damage to the airway and lung epithelium. This damage manifests as mucus hypersecretion, pulmonary inflammation and fibrosis, which often lead to long-term complications collectively referred to as long COVID or post-acute sequelae of COVID-19 (PASC). The airway epithelium, as the first line of defence against respiratory pathogens, depends on airway basal stem cells (BSCs) for regeneration.
View Article and Find Full Text PDFCell-to-Cell Natural Transformation Mediated Efficient Plasmid Transfer Between Species.
Int J Mol Sci
January 2025
State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, China.
Horizontal gene transfer (HGT) plays a pivotal role in bacterial evolution, shaping the genetic diversity of bacterial populations. It can occur through mechanisms such as conjugation, transduction, and natural transformation. , a model Gram-positive bacterium, serves not only as a robust system for studying HGT but also as a versatile organism with established industrial applications, such as producing industrial enzymes, antibiotics, and essential metabolites.
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