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Mesenchymal stem cells

Multipotent stromal cells from bone marrow, fat, and other tissues with broad therapeutic and anti-inflammatory potential.

14 articles

AI generated image for: Donor's age dependent proliferation decrease of human bone marrow mesenchymal stem cells is linked to diminished clonogenicity
Clinical
1 min read
Biomed Mater Eng
Donor's age dependent proliferation decrease of human bone marrow mesenchymal stem cells is linked to diminished clonogenicity
While mesenchymal stem cells represent an interesting cell source for regenerative medicine, several points have to be investigated to improve their use in clinical, and in particular in the elderly population. This work studied the proliferation capacity of mesenchymal stem cells isolated from human bone marrow in function of donor's age. Doubling time after in vitro culture, clonogenicity and phenotype were analyzed in 17 samples ranging from 3 to 85 years old (mean 47 ± 27). Results showed an increase in the doubling time for cell coming from old donor compared to cells coming from young ones. This was accompanied by a decrease in clonogenicity while no changes were observe in cell phenotype. In conclusion, this study showed an effect of donor's age on the proliferation capacity of mesenchymal stem cells isolated from bone marrow that was correlated to a decrease in clonogenicity. The comprehension of molecular mechanism involved in this process could help to improve the clinical application of mesenchymal stem cells.
Mesenchymal stem cells
AI generated image for: Transplantation of mesenchymal stem cells from young donors delays aging in mice
Clinical
1 min read
Sci Rep
Transplantation of mesenchymal stem cells from young donors delays aging in mice
__Increasing evidence suggests that the loss of functional stem cells may be important in the aging process.__ Our experiments were originally aimed at testing the idea that, in the specific case of age-related osteoporosis, declining function of osteogenic precursor cells might be at least partially responsible. To test this, aging female mice were transplanted with mesenchymal stem cells from aged or young male donors. We find that transplantation of young mesenchymal stem cells significantly slows the loss of bone density and, surprisingly, prolongs the life span of old mice. These observations lend further support to the idea that age-related diminution of stem cell number or function may play a critical role in age-related loss of bone density in aging animals and may be one determinant of overall longevity.
Mesenchymal stem cells

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