Journal
INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE
Volume 41, Issue 2, Pages 669-678Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/ijmm.2017.3280
Keywords
postmenopausal osteoporosis; bone marrow mesenchymal stem cells; stromal cell-derived factor-alpha 1/CXC chemokine receptor type 4; cell homing; migration ability; osteogenic ability
Categories
Ask authors/readers for more resources
Postmenopausal osteoporosis (PMO) increases bone fragility and the risk of fractures, and impairs the healing procedure of bone defects in aged women. The stromal cell-derived factor-1 alpha (SDF-1)/CXC chemokine receptor type 4 (CXCR4) axis helps to maintain the biological and physiological functions of bone marrow mesenchymal stem cells (BMSCs) and increase the homing efficiency of BMSCs. The present study aimed to provide insights into the possible association between migration and osteogenic ability and the SDF-1 alpha/CXCR4 axis in BMSCs derived from a rat model of PMO. In order to do this, the general and SDF-1 alpha/CXCR4-associated biological characteristics as well as associated molecular mechanisms in BMSCs isolated from a PMO rat model (OVX-BMSCs) and normal rats (Sham-BMSCs) were investigated and compared. In comparison with Sham-BMSCs, OVX-BMSCs exhibited an impaired osteogenic ability, but a stronger adipogenic activity as well as a higher proliferative ability. In addition, OVX-BMSCs presented a lower chemotactic activity towards SDF-1 alpha, lower expression levels of CXCR4 and reduced levels of phosphorylated AKT (p-AKT). Therefore, the lower expression levels of CXCR4 and p-AKT may be responsible for the impaired osteogenic ability and lower chemotactic activity towards SDF-1 alpha of OVX-BMSCs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available