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Cbfa1对成骨细胞调控作用的研究进展

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摘要 核心结合因子α1(Cbfa1),是成骨细胞发生和分化的特异性转录因子。Cbfa1/p56能激活T细胞特异性基因表达,Cbfa1/p57的超表达能诱导多潜能间充质干细胞向成骨细胞表型分化,并激活骨钙蛋白、I型胶原蛋白、骨桥蛋白、骨唾液蛋白等成骨基因转录。Cbfa1基因反义寡核苷酸则阻止OB分化和骨化形成,如果Cbfal基因缺失,将导致形成以破骨细胞、软骨细胞和软骨组织为主而缺乏成骨细胞的骨骼系统。骨形态发生蛋白、转移生长因子、肿瘤坏死因子α、成纤维细胞生长因子2、甲状旁腺激素、糖皮质激素地塞米松和l,25(OH)2D3等因子可上调或抑制Cbfal的表达,在骨的发育和组织钙化过程中起着重要的调节作用。
出处 《畜牧与兽医》 北大核心 2005年第8期55-57,共3页 Animal Husbandry & Veterinary Medicine
基金 国家自然科学基金项目(30270993)。
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参考文献26

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