| TGF-β1过表达介导的放疗诱导成纤维细胞向肌成纤维细胞分化的体外研究 |
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| 引用本文： | 付洪海,周咏,张志愿,胡海生,何悦.TGF-β1过表达介导的放疗诱导成纤维细胞向肌成纤维细胞分化的体外研究[J].中国口腔颌面外科杂志,2012,10(4):266-270. |
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| 作者姓名： | 付洪海 周咏 张志愿 胡海生 何悦 |
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| 作者单位： | 1. 上海交通大学医学院附属第九人民医院·口腔医学院 口腔颌面外科,上海市口腔医学重点实验室,上海200011
2. 上海交通大学医学院附属第九人民医院·口腔医学院 口腔放疗科,上海200011 |
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| 基金项目： | 国家自然科学基金（30973341）;上海市教育委员会曙光计划（10SG19）;上海市科学技术委员会资助项目（08DZ2271100）;上海市重点学科建设项目（S30206） |
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| 摘 要： | 目的:探讨体外培养的皮肤成纤维细胞在直线加速器照射后向肌成纤维细胞的转分化。方法:消化法体外培养F344大鼠皮肤成纤维细胞,传代后,在直线加速器下进行照射处理,照射剂量分别为0、2、4、8Gy。应用实时定量PCR检测照射后1、3、5、7d TGF-β1基因表达,应用Western印迹检测TGF-β1和α-SMA蛋白的表达。采用SPSS10.0软件包对数据进行统计学分析。结果:通过酶消化法成功培养成纤维细胞,照射后,TGF-β1基因和蛋白表达随照射剂量增加而上调,随照射后时间增加而下调。照射后第1d,8Gy剂量组TGF-β1表达量最高(P<0.05)。α-SMA蛋白的表达趋势与TGF-β1一致。结论:成纤维细胞照射后转变为肌成纤维细胞并高表达α-SMA,TGF-β1是成纤维细胞照射后早期表达的指标。
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| 关 键 词： | 成纤维细胞 TGF-β1 抗纤维化 放射性骨坏死 |
Effect of irradiation induced TGF-β1 overexpression on myofibroblast differentiation of fibroblast |
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| FU Hong-hai
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ZHOU Yong
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ZHANG Zhi-yuan
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HU Hai-sheng
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HE Yue.Effect of irradiation induced TGF-β1 overexpression on myofibroblast differentiation of fibroblast[J].China Journal of Oral and Maxillofacial Surgery,2012,10(4):266-270. |
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| Authors: | FU Hong-hai ZHOU Yong ZHANG Zhi-yuan HU Hai-sheng HE Yue |
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| Institution: | 1.(1.Department of Oral and Maxillofacial Surgery,2.Department of Radiotherapy,Ninth People’s Hospital,College of Stomatology,Shanghai Jiao Tong University School of Medicine,Shanghai Key Laboratory of Stomatology.Shanghai 200011,China) |
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| Abstract: | PURPOSE： To investigate the effect of irradiation on skin fibroblast into myofibroblast in vitro.METHODS： Enzyme digestion was used to culture F344 rat skin fibroblast.The fibroblasts underwent irradiation by linear accelerator.The gene expression of TGF-β1 was detected by real-time PCR.The protein expression of TGF-β1 and α-SMA was detected by Western blot.The data was analyzed for ANOVA using SPSS 10.0 software package.RESULTS： Skin fibroblast was successfully cultured using enzyme digestion.The gene and protein expression of TGF-β1 was up-regulated with the increase of irradiation dose.However,the expression of the gene was down-regulated with the increase of time.The expression of α-SMA was consistent with TGF-β1.CONCLUSION： The fibroblast was transdifferentiated into myofibroblast after irradiation.TGF-β1 was the early parameter of fibroblast irradiation. |
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| Keywords: | Fibroblast TGF-β1 Antfibrotic Osteoradionecrosis |
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