PMID- 25634304 OWN - NLM STAT- MEDLINE DCOM- 20170118 LR - 20181202 IS - 1559-0283 (Electronic) IS - 1085-9195 (Linking) VI - 72 IP - 2 DP - 2015 Jun TI - Donor Age and Cell Passage Affect Osteogenic Ability of Rat Bone Marrow Mesenchymal Stem Cells. PG - 543-9 LID - 10.1007/s12013-014-0500-9 [doi] AB - Tissue engineering allows the restoration of pathologically damaged tissues such as cartilage and bone using bio-scaffolds containing functionally active cells. Bone-marrow-derived mesenchymal stem cells (BMSCs) are a promising source of cells for tissue engineering due to their multilineage differentiation potential. However, proliferative and osteogenic abilities of BMSCs, and quantity of stem cells decreases in the bone marrow in aged population. We cultured BMSCs isolated from rats of various ages and evaluated their morphology, activity, and differentiation potential. Cultured BMSCs formed monolayer of fibroblast-like cells and maintained their characteristic morphology for 7-10 generations. Flow cytometry showed that aging of the cultured cell population correlated with the decrease in the expression of mesenchymal and hematopoietic surface markers, such as CD44, CD45, CD90, and CD29. We detected strong correlation between the age of BMSC donor and ALP activity in BMSC culture induced with low doses of dexamethasone and vitamin C. Cells from 2- and 6-week-old donor SD rats exhibited markedly increased ALP activity that coincided with increased bone content and strong positive staining of mineralized nodules. In contrast, BMSCs isolated from 10-month-old donors showed the lowest ALP activity, and decreased bone content and mineralized nodules formation. Our results demonstrate that the increase in donor age negatively affects proliferation and differentiation capacity of BMSCs in culture. FAU - Li, Chao AU - Li C AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Wei, Guojun AU - Wei G AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Gu, Qun AU - Gu Q AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Wen, Gang AU - Wen G AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Qi, Baochang AU - Qi B AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Xu, Liang AU - Xu L AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. FAU - Tao, Shuqin AU - Tao S AD - Department of Orthopaedics, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150001, China. drshuqintao@163.com. LA - eng PT - Journal Article PL - United States TA - Cell Biochem Biophys JT - Cell biochemistry and biophysics JID - 9701934 SB - IM MH - Animals MH - Bone Marrow/*growth & development MH - *Cell Differentiation MH - Cell Lineage MH - Cell Proliferation MH - Cells, Cultured MH - Female MH - Mesenchymal Stem Cells/*cytology/physiology MH - *Osteogenesis MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - Ages OT - Bone marrow OT - Mesenchymal stem cells OT - Osteogenesis EDAT- 2015/01/31 06:00 MHDA- 2017/01/19 06:00 CRDT- 2015/01/31 06:00 PHST- 2015/01/31 06:00 [entrez] PHST- 2015/01/31 06:00 [pubmed] PHST- 2017/01/19 06:00 [medline] AID - 10.1007/s12013-014-0500-9 [pii] AID - 10.1007/s12013-014-0500-9 [doi] PST - ppublish SO - Cell Biochem Biophys. 2015 Jun;72(2):543-9. doi: 10.1007/s12013-014-0500-9.