:::Tissue transglutaminase is involved in mechanical load-induced osteogenic differentiation of human ligamentum flavum cells.
Tissue transglutaminase is involved in mechanical load-induced osteogenic differentiation of human ligamentum flavum cells. 員工報告
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| 計畫摘要 | Mechanical load-induced osteogenic differentiation might be the key cellular event in the calcification and ossification of ligamentum flavum. The aim of this study was to investigate the influence of tissue transglutaminase (TGM2) on mechanical load-induced osteogenesis of ligamentum flavum cells. Human ligamentum flavum cells were obtained from 12 patients undergoing lumbar spine surgery. Osteogenic phenotypes of ligamentum flavum cells, such as alkaline phosphatase (ALP), Alizarin red-S stain, and gene expression of osteogenic makers were evaluated following the administration of mechanical load and BMP-2 treatment. The expression of TGM2 was evaluated by real-time PCR, Western blotting, and enzyme-linked immunosorbent assay (ELISA) analysis. Our results showed that mechanical load in combination with BMP-2 enhanced calcium deposition and ALP activity. Mechanical load significantly increased ALP and OC gene expression on day 3, whereas BMP-2 significantly increased ALP, OPN, and Runx2 on day 7. Mechanical load significantly induced TGM2 gene expression and enzyme activity in human ligamentum flavum cells. Exogenous TGM2 increased ALP and OC gene expression； while, inhibited TG activity significantly attenuated mechanical load-induced and TGM2-induced ALP activity. In summary, mechanical load-induced TGM2 expression and enzyme activity is involved in the progression of the calcification of ligamentum flavum |
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| 資料集研究(主辦)機關 | 衛生局聯合醫院 |
| 年度 | 105 |
| 研究人員 | Chao YH, Huang SY, Yang RC(楊瑞成), Sun JS. |
| 關鍵詞 | 期刊 |
| 備註 | 本專區110年以前為歷史轉檔資料，因新舊平臺欄位規格不同，故有部分詮釋資料欄位無資訊；如對資料內容有疑義，請洽資料集主辦機關或本府研考會研究發展組。 |