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| 1 | 热疗上调细胞间隙连接通讯对胶质瘤侵袭性的影响及其机制显示文摘目的探讨热疗降低胶质瘤侵袭性的作用与细胞间隙连接通讯(gap junctional intercellular communication,GJIC)的关系。方法热疗处理C6胶质瘤细胞后,免疫组织化学法和Western blot法动态检测HSP70和Cx43的表达水平;划痕标记染料示踪技术检测胶质瘤GJIC功能变化;结晶紫染色法检测胶质瘤侵袭性的改变。结果 C6细胞经热疗后,HSP70表达增加,于30 min时含量最多。C6细胞内Cx43的表达水平也在热疗后明显增加,并于热疗后的120 min达高峰,后逐渐减少。热疗后GJIC功能的恢复与C6细胞内Cx43的表达相一致,且GJIC功能越强,胶质瘤侵袭性越低。结论胶质瘤细胞经热疗后HSP70表达增加,增加的HSP70可能是通过其分子伴侣作用提高Cx43的表达水平,进而上调GJIC功能而引起胶质瘤侵袭性的下降。 | 秦丽娟 张志勇 王银环 朱丽艳 杨秀红 张田 孙娜 宋鸿艳 | 2011 | 中国药理学通报2011，27，12： | 2 |
| 2 | 热疗降低胶质瘤侵袭性的作用与肿瘤坏死因子受体亲和力的关系显示文摘目的探讨热疗降低胶质瘤侵袭性的作用与肿瘤坏死因子受体(tumor necrosis factor receptor,TNFR)亲和力的关系。方法免疫组织化学法观察肿瘤坏死因子受体在胶质瘤组织中的分布;免疫荧光法检测肿瘤坏死因子受体在热疗后胶质瘤组织中的分布;放射配基受体结合分析法测定胶质瘤细胞经热疗联合重组人肿瘤坏死因子(recombinant human tumor necrosis factor,rhTNF)作用后,胶质瘤细胞中rhT-NF结合肿瘤坏死因子受体水平的改变;通过荧光分光光度计分析Caspase3/7的活性来检测胶质瘤细胞的凋亡水平;结晶紫染色法测定热疗后胶质瘤侵袭性的变化。结果 TNFR存在于胶质瘤细胞和胶质瘤血管内皮细胞,但以TNFR1分布于胶质瘤细胞为主;热疗后的胶质瘤组织中TNFR1的表达明显高于TN-FR2,且于热疗后的120 min时TNFR1的表达达到高峰;胶质瘤细胞经热疗联合rhTNF作用后,rhTNF与TNFR1的结合率和Caspase3/7的活性呈上升趋势,两者均于120 min时达高峰后下降,与此同时,胶质瘤侵袭性降至最低水平。结论热疗后,rhTNF可能是通过增加胶质瘤细胞TNFR1的表达并与之结合,并增强了rhTNF与TNFR1的亲和力,进而引起胶质瘤细胞凋亡导致胶质瘤侵袭性降低的。 | 秦丽娟 王东春 张田 孙娜 张伟 王晓君 张志勇 | 2012 | 肿瘤防治研究2012，39，4： | 2 |
| 3 | 热疗降低胶质瘤侵袭性的作用与TNF-α和Cx-43的关系显示文摘目的:探讨热疗诱发胶质瘤细胞释放的肿瘤坏死因子-α(TNF-α)对胶质瘤细胞侵袭性的影响机制。方法:热处理C6细胞后,应用放射免疫法动态监测培养液内TNF-α的含量;观察热处理C6细胞后的条件培养液(C6CM)对胶质瘤细胞内的丝裂素活化蛋白激酶(mitogen-activated protein kinase,MAPK)mRNA的转录水平、NF-κB含量及胶质瘤侵袭性的影响;利用免疫荧光技术检测C6CM对体外胶质瘤侵袭模型上连接蛋白Cx-43表达的影响。结果:热处理C6细胞后,培养液内TNF-α的含量增加,于120 min时达高峰。C6CM作用于体外胶质瘤侵袭模型后,胶质瘤细胞的MAPK mRNA转录水平及NF-κB含量增加,且均于第120 min时达最高水平。与此同时,体外胶质瘤细胞的连接蛋白Cx-43表达水平也呈相同的变化趋势。结论:热疗可诱发C6细胞释放TNF-α,其可能是通过增加胶质瘤细胞的MAPK mRNA转录水平和NF-κB的含量而导致胶质瘤细胞的连接蛋白Cx-43的表达增加,进而引起胶质瘤侵袭性降低的。 | 秦丽娟 王东春 张田 孙娜 王晓君 张志勇 张一兵 | 2012 | 神经解剖学杂志2012，28，3： | 2 |
| 4 | Tumor necrosis factor-alpha mediates hyperthermia-induced glioma invasiveness decreases显示文摘Background: Thermotherapy has already been proved effective for the treatment of various tumors, including glioma.This study was performed to determine whether tumor necrosis factor-alpha was involved in the regulation of this biological process. Methods: RT-PCR and immunocytochemistry were used to investigate the levels of tumor necrosis factor-alpha mRNA and heat shock factor-1 protein, respectively, in glioma cells. Radioimmunoassay was used to dynamically monitor contents of TNF-α in nutrient fluid for C6 cells after hyperthermia treatment. Crystal violet staining method was used to detect glioma invasiveness. Results: The most obvious increase of heat shock factor-1 protein and tumor necrosis factor-alpha mRNA in C6cells were observed at 30 min and 60 min after hyperthermia, respectively. In addition, the radioactivity of tumor necrosis factor-alpha in C6 cells' culture fluid also reached peak at 120 min of hyperthermia. The glioma invasiveness decreases and the concentration of tumor necrosis factor-alpha reached the maximum at 120 min of hyperthermia. Conclusion: Our results showed that the hyperthermia-mediated glioma invasiveness decreases was due to accelerated release of tumor necrosis factor-alpha,which could cause the decreases of glioma invasiveness by promoting the release heat shock factor-1 from neurospongioma cells. | ZHANG Tian ZHANG Yibing QIN Lijuan ZHANG Yuxin | 2013 | Journal of Medical Colleges of PLA(China)2013，28，5： | 0 |
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