Comparison of fetal and adult marrow stromal cells in osteogenesis with and without glucocorticoids

Pi Ling Chang, Harry C. Blair, Xiaochu Zhao, Yi Wen Chien, DungTsa Chen, Arabella B. Tilden, Zhijie Chang, Xu Cao, Ona Marie Faye-Petersen, Patricia Hicks

研究成果: 雜誌貢獻文章同行評審

23 引文 斯高帕斯(Scopus)

摘要

To better understand the potential use of fetal marrow stromal cells (MSCs) in bone tissue engineering, we compared the ability of these cells with those of adult MSCs with respect to osteoblasts differentiation in the presence or absence of glucocorticoids. Cells were grown for 3 - 4 weeks in basal medium or supplemented with 100 nM dexamethasone (DEX, a synthetic glucocorticoid analog) or with 50 μM L-ascorbate and 10 mM glycerol-2-phosphate (AS+GP) or with AS+GP+DEX. At various time points in culture, the following parameters were compared between fetal and adult MSCs: cell morphology, cell proliferation, alkaline phosphatase activity, calcium (45Ca) uptake, von Kossa staining, and glucocorticoids receptor expression were analyzed. Compared with adult MSCs, fetal cells showed a less dramatic change to cuboidal morphology in DEX-containing media. Fetal MSCs in all media conditions showed higher proliferation rates and lower alkaline phosphatase activities (p <0.001) than adult cells. Both fetal and adult MSCs responded similarly in DEX-containing media with respect to suppressing cell proliferation, stimulating alkaline phosphatase activity, and consistently accumulating calcium (usually higher in fetal cells) with subsequent formation of mineralized matrix when compared with cells cultured in AS+GP. Our findings further implicate the requirement of glucocorticoids in osteogenesis. In conclusion, compared with adult MSCs, fetal cells showed greater ability in sustaining cell proliferation and calcium uptake suggesting that they may be useful for bone tissue repair.

原文英語
頁(從 - 到)67-76
頁數10
期刊Connective Tissue Research
47
發行號2
DOIs
出版狀態已發佈 - 3月 2006
對外發佈

ASJC Scopus subject areas

  • 生物化學
  • 免疫學
  • 腎臟病學
  • 細胞生物學
  • 骨科和運動醫學

指紋

深入研究「Comparison of fetal and adult marrow stromal cells in osteogenesis with and without glucocorticoids」主題。共同形成了獨特的指紋。

引用此