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胰岛素样生长因子-1对模拟失重下成骨细胞整合素亚单位表达的影响 被引量:2

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摘要 目的探讨失重条件下胰岛素样生长因子-1(IGF-1)对成骨细胞整合素亚单位基因表达的影响。方法以小鼠成骨样细胞株(MC3T3-E1)作对象,以回转器模拟微重力效应,实验共分为5组:正常重力组、模拟失重组、模拟失重+10 ng/mL IGF-1组、模拟失重+50 ng/mL IGF-1组、模拟失重+100 ng/mL IGF-1组。在实验的48 h提取细胞总RNA,进行反转录PCR,检测整合素α2α5β1亚单位mRNA的表达,同时以GAPDH基因作为内参照。扫描PCR产物电泳照片,计算integrinα2/GAPDH、integrinα5/GAPDH、integrinβ1/GAPDH的积分光密度比值,推算integrinα2、integrinα5、integrinβ1基因的相对表达水平。结果与正常重力组比较,模拟失重组的integrinα2、integrinα5、integrinβ1的mRNA表达明显下降(P<0.05);与模拟失重组比较,模拟失重+IGF-1组的integrinα2、integrinα5、integrinβ1的mRNA表达明显升高,且呈明显剂量依赖性(P<0.05)。结论在模拟失重环境下,IGF-1能增加成骨细胞整合素亚单位表达。
出处 《广东医学》 CAS CSCD 北大核心 2013年第4期528-531,共4页 Guangdong Medical Journal
基金 广东省科技计划项目(编号:2011B031800299)
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  • 1ZAYZAFOON M, WILLIAM E. Modeled microgravity inhibits os- teogenic Differentiation of human mesenchymal stem cells and in- creases adipogenesis[ J]. Endocrinology-, 2004, 145 (5) : 2412 - 2432.
  • 2YAO W G, ZHONG J, YU J, et al. IGF - I improved bone min- eral density and body composition of weavermutant mice [ J ]. Growth Horm IGF Res, 2008, 18(6) : 517 -525.
  • 3ISIDRO M L, RUANO B. Bone disease in diabete[ J ]. Curr Dia- betes Rev, 2010, 6(3): 144-155.
  • 4GARNERO P, SORNAY RENDU E, DELMAS P D. Low serumIGF - 1 and occurrence of osteoporotic fractures in postmenopausal women(letter) [ J ]. Lancet, 2000, 355 (9207) : 898 - 899.
  • 5RUCKER D, EZZAT S, DIAMANDI A, et al. tGF - 1 and testos- terone levels as predictors of bone mineral density in healthy, com- munity dwelling men [ J ]. Clin Endocrinol (Oxf), 2004, 60 (4) : 491 - 499.
  • 6CAVALCANTIADAM E A, TOMAKIDI P, BEZLER M, et al. Geometric organization of the extracellular matrix in the control of integrinmediated adhesion and cell function in osteoblasts [ J ]. Prog Orthod, 2005, 6 (2) : 232 - 237.
  • 7CHENG S L, LAI C F, FAUSTO A, et al. Regulation of alphav beta3 and alphav beta5 integrins by dexamethasone in normal human osteo- blastic cells[J]. Cell Biochem, 2000, 77(2) : 265 -276.
  • 8ROSEN H N, CHEN V, CITTADINI A. Treatment with growth hormone and IGF - 1 in growing rats increases bone mineral con-tent but not bone mineral density[ J. J Bone Miner Res, 1995, 10(9) : 1352 -1358.
  • 9NAKAYAMADA S, OKADA Y, SAITO K, et al. Beta 1 integrin/ focal adhesion kinase - mediated signaling induces intercellular ad- hesion molecule 1 and receptor activator of nuclear factor kappa B ligand on osteoblasts and osteoclast maturation [ J ] J Biol Chem, 2003, 278(46): 45368-45374.
  • 10MCCARTHY A D, UEMURA T, ETCHEVERRY S B, et al. Ad- vanced gtycation endproducts interefere with integrin - mediated osteoblastic attachment to a type - I collagen matrix [ J ]. Int J Biochem Cell Biol, 2004, 36(5) : 840 -848.

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