Inflammatory bowel disease (IBD) is a chronic nonspecific inflammatory disease of the intestine, with unknown etiology and the incidence is increasing year by year. Traditional treatment has limited effect. Mesenchymal stem cell-derived exosomes (MSC-Exos) are a group of nano-sized extracellular vesicles. Their function is equivalent to that of mesenchymal stem cells (MSCs), with no tumorigenicity and high safety. They represent a novel cell-free therapy. It has been shown that MSC-Exos can improve IBD by effects including anti-inflammation, antioxidant stress, repairing intestinal mucosal barrier and immune regulation. However, their clinical application still faces some problems, such as the lack of standardized production technology, lack of specific IBD diagnostic molecules and anti-intestinal fibrosis.
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The role of the NOTCH1 signaling pathway in the maintenance of mesenchymal stem cell stemness and chondrocyte differentiation and its potential in the treatment of osteoarthritis.
J Orthop Surg Res
January 2025
Department of Knee Surgery, The First Hospital of Hebei Medical University, Hebei, China.
Objective: This study aims to explore the potential role of mesenchymal stem cells (MSCs) in the treatment of osteoarthritis (OA), particularly the function of the NOTCH1 signaling pathway in maintaining the stemness of MSCs and in chondrocyte differentiation.
Methods: Utilizing diverse analytical techniques on an osteoarthritis dataset, we unveil distinct gene expression patterns and regulatory relationships, shedding light on potential mechanisms underlying the disease. Techniques used include the culture of MSCs, induction of differentiation into chondrocytes, establishment of stable cell lines, Western Blot, and immunofluorescence.
Recent Advances in the Application of Engineered Exosomes from Mesenchymal Stem Cells for Regenerative Medicine.
Eur J Pharmacol
January 2025
Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran. Electronic address:
Exosomes, cell-derived vesicles produced by cells, are fascinating and drawing growing interest in the field of biomedical exploration due to their exceptional properties. There is fascinating evidence that exosomes are involved in major biological processes, including diseases and regeneration. Exosomes from mesenchymal stem cells (MSCs) have shown promising outcomes in regenerative medicine.
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Comput Biol Chem
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Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA.
The mesenchymal stem cell (MSC) secretome plays a pivotal role in shaping the tumor microenvironment, influencing both cancer progression and potential therapeutic outcomes. In this research, by using publicly available dataset GSE196312, we investigated the role of MSC secretome on breast cancer cell gene expression. Our results raveled differentially expressed genes, including the upregulation of Phosphatidylinositol-3,4,5-Trisphosphate Dependent Rac Exchange Factor 1 (PREX1), C-C Motif Chemokine Ligand 28 (CCL28), and downregulation of Collagen Type I Alpha 1 Chain (COL1A1), Collagen Type I Alpha 3 Chain (COL1A3), Collagen Type III Alpha 1 Chain (COL3A1), which contributing to extra cellular matrix (ECM) weakening and promoting cell migration.
View Article and Find Full Text PDFA NOTCH3 pathogenic variant influences osteogenesis and can be targeted by antisense oligonucleotides in induced pluripotent stem cells.
PLoS One
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Ionis Pharmaceuticals, Inc., Carlsbad, CA, United States of America.
Lateral Meningocele Syndrome (LMS), a disorder associated with NOTCH3 pathogenic variants, presents with neurological, craniofacial and skeletal abnormalities. Mouse models of the disease exhibit osteopenia that is ameliorated by the administration of Notch3 antisense oligonucleotides (ASO) targeting either Notch3 or the Notch3 mutation. To determine the consequences of LMS pathogenic variants in human cells and whether they can be targeted by ASOs, induced pluripotent NCRM1 and NCRM5 stem (iPS) cells harboring a NOTCH36692-93insC insertion were created.
View Article and Find Full Text PDFSingle-nucleus and spatial landscape of the sub-ventricular zone in human glioblastoma.
Cell Rep
January 2025
The Brain Tumor Translational Laboratory, Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; University of New Mexico Comprehensive Cancer Center, Albuquerque, NM 87131, USA. Electronic address:
The sub-ventricular zone (SVZ) is the most well-characterized neurogenic area in the mammalian brain. We previously showed that in 65% of patients with glioblastoma (GBM), the SVZ is a reservoir of cancer stem-like cells that contribute to treatment resistance and the emergence of recurrence. Here, we build a single-nucleus RNA-sequencing-based microenvironment landscape of the tumor mass and the SVZ of 15 patients and two histologically normal SVZ samples as controls.
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