华西口腔医学杂志

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XW630对大鼠成骨细胞TGF-β_1和Ⅰ型胶原基因表达调控的研究

费伟,王大章,郑虎,翁玲玲,邓力   

  1. 610072 四川省人民医院口腔颌面外科(费 伟), 四川大学华西口腔医学院口腔颌面外科学教研室(王大章),四川大学华西药学院药物化学研究室(郑 虎,翁玲玲,邓 力)
  • 收稿日期:2001-12-25 修回日期:2001-12-25 出版日期:2001-12-20 发布日期:2001-12-20
  • 基金资助:
    本课题为国家自然科学基金资助项目(编号39430120)

Regulation of XW630 on TGF-B1and CollagenÑ Gene Expression in Osteoblasts

Fei Wei, Wang Dazhang, Zheng Hu, et al   

  • Received:2001-12-25 Revised:2001-12-25 Online:2001-12-20 Published:2001-12-20

摘要:

目的:探讨抗骨质疏松新药XW630促进成骨作用的机理。方法:提取并标记制备TGF-B1和ColÑ基因的 cDNA探针,将3种不同药物作用于大鼠成骨细胞24、72 h后,提取细胞总RNA,并与TGF-B1和ColÑ基因的cDNA探针进行狭缝杂交。结果:XW630具有促进大鼠成骨细胞中TGF-B1和ColÑmRNA表达的作用,在相同浓度(10-6 mol/L)下,其作用优于四环素加哌嗪雌酮和单纯雌酚酮(P<0105)。结论:XW630可能通过促进TGF-B1和ColÑ mRNA的表达而促进成骨作用。

关键词: 成骨细胞, 转化生长因子β1, Ⅰ型胶原, 基因表达

Abstract:

Objective:The purpose of this partof studywas to investigate the mechanism of a newanti-osteoporotic drug, XW630 on pro- moting osteogenic activity.Methods:Total RNAwere isolated from osteoblasts of the mice after the reactionwith XW630 in 24 and 72 hours, that were hybridized with the extracted and digoxigenin-labeled TGF-B1and the collagenÑcDNA probes.Results: XW630 significantly promoted TGF-B1and collagenÑgene expression in osteoblasts, and this drug was superior than other two kindsof estrogen in promoting osteogenic activity (P<0.05).Conclusion:XW630 promote osteogenic activity of osteoblasts, probably by enhancing the mRNA expression of TGF-B1and collagenÑ.

Key words: osteoblast, TGFβ-1, collagenⅠ, geneexpression