Bone marrow mesenchymal stromal cells (BM-MSCs) are multipotent cells present in bone marrow; they play a crucial role in the process of bone formation. Cellular senescence is defined as a stable state of cell cycle arrest that impairs the functioning of cells. Research has shown that aging triggers a state of senescence in BM-MSCs, leading to a reduced capacity for osteogenic differentiation and the accumulation of senescent cells, which can accelerate the onset of various diseases. Therefore, it is essential to explore mechanisms and strategies for the rejuvenation of senescent BM-MSCs. Senile osteoporosis (SOP) is a metabolic bone disease characterized by reduced bone formation. The senescence of BM-MSCs is considered one of the most important factors in the occurrence and development of SOP. Therefore, the rejuvenation of BM-MSCs for the treatment of SOP represents a promising strategy. This work provides a summary of the functional alterations observed in senescent BM-MSCs and a systematic review of the mechanisms that facilitate the rejuvenation of senescent BM-MSCs. Additionally, we analyze the progress in and the limitations associated with the application of rejuvenated senescent BM-MSCs to treat SOP, with the aim of providing new insights for the prevention and treatment of SOP.
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http://dx.doi.org/10.3390/biom15020276 | DOI Listing |
J Cell Mol Med
March 2025
Physical Examination Center, Xi'an International Medical Center Hospital, Xi'an, China.
Bone marrow mesenchymal stem cells (BM-MSCs) have promising prospects in bone repair and regenerative medicine. However, BM-MSCs gradually lose their original pluripotency and differentiation potential after successive passages. This study aimed to reveal the mechanism underlying the phenomenon.
View Article and Find Full Text PDFCell Mol Life Sci
March 2025
Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, China.
The bone marrow microenvironment contains heterogeneous stromal cells, which are critical for bone remodeling and provide essential supportive roles for hematopoietic functions. Although the diversity of PDGFRαβ mesenchymal stromal/stem cells (MSCs) get consensus, the osteo-lineage cells (OLCs) that constitute the developmental trajectory of osteoblasts are largely remain unclear. Here, we construct a comprehensive atlas of stromal cell via performing integrative single cell analyses for 77 samples from 14 datasets.
View Article and Find Full Text PDFBiomolecules
February 2025
Department of Stomatology, Air Force Medical Center, The Fourth Military Medical University, Beijing 100142, China.
Bone marrow mesenchymal stromal cells (BM-MSCs) are multipotent cells present in bone marrow; they play a crucial role in the process of bone formation. Cellular senescence is defined as a stable state of cell cycle arrest that impairs the functioning of cells. Research has shown that aging triggers a state of senescence in BM-MSCs, leading to a reduced capacity for osteogenic differentiation and the accumulation of senescent cells, which can accelerate the onset of various diseases.
View Article and Find Full Text PDFStem Cell Res Ther
February 2025
Clinical Medical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, No. 71 Bao Shan North Road, Yunyan District, Guiyang, Guizhou Province, 550001, China.
Background: The therapeutic benefits of mesenchymal stromal cells (MSCs) are largely dependent on paracrine factors, but the supernatants of the different MSCs may have different effects on multiple myeloma (MM) cells. Therefore, this study compared supernatants of bone marrow-derived mesenchymal stromal cells (BM-MSCs) with umbilical cord wharton's jelly's mesenchymal stem cells (UC-WJ MSCs) in different states (non-senescent and replicative senescence) on the MM cells.
Methods: We extracted human BM-MSCs and UC-WJ MSCs in vitro and used HO to induce replicative senescence.
J Orthop Translat
January 2025
The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University, Nanjing, China.
Background: Objective: Vitamin D insufficiency is a major contributor to osteoporosis. This study aimed to elucidate the mechanisms by which the vitamin D-Sirt1/PGC1α axis regulates bone metabolism and counteracts osteoporosis induced by active vitamin D insufficiency.
Methods: Mouse models including Sirt1 transgenic (Sirt1), Cyp27b1 (active vitamin D deficient), and compound Sirt1Cyp27b1 mice were utilized.
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