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热休克反应

热休克反应的相关文献在1992年到2022年内共计112篇,主要集中在基础医学、内科学、肿瘤学 等领域,其中期刊论文109篇、会议论文3篇、专利文献385696篇;相关期刊85种,包括技术与市场、生物化学与生物物理进展、河南科学等; 相关会议3种,包括2010年全国辐射技术与辐射改性材料发展论坛、中国科协首届学术年会、中国动物学会成立65周年年会等;热休克反应的相关文献由293位作者贡献,包括肖献忠、徐存拴、张华莉等。

热休克反应—发文量

期刊论文>

论文:109 占比:0.03%

会议论文>

论文:3 占比:0.00%

专利文献>

论文:385696 占比:99.97%

总计:385808篇

热休克反应—发文趋势图

热休克反应

-研究学者

  • 肖献忠
  • 徐存拴
  • 张华莉
  • 王慷慨
  • 刘瑛
  • 王斌
  • 罗炳德
  • 邹飞
  • 唐道林
  • 王秋鹏
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 胥婷婷; 陶明芳; 李蓉; 徐晓云; 吴婷
    • 摘要: 为研究生姜提取物(ginger extract,GE)对高温胁迫的影响及机制,建立秀丽隐杆线虫急性热应激(37°C)模型,测定了生姜对热应激下野生型线虫的寿命及运动状态、基因缺失株系的热应激寿命以及不同热应激程度下野生型线虫中与热休克反应相关基因的mRNA表达量。结果显示,相比于对照组(CK),30、60、120μg/mL的GE处理组分别显著延长野生型线虫热应激寿命16.96%、18.73%、14.44%,显著改善热应激过程中(1 h、2 h、3 h)线虫的运动状态。GE介导的野生型线虫热应激寿命的延长依赖调控热休克反应(heat shock response,HSR)的转录因子hsf-1。GE的干预显著上调常温(20°C)下野生型线虫HSR相关基因hsf-1、hsp-90和hsp-16.2的mRNA表达水平以及HSP-16.2的蛋白表达水平。此外,在不同程度热应激(短暂热应激、持续热应激)状态下,GE对野生型线虫体内参与HSR相关基因的mRNA表达水平都具有调节作用。相比于常温(20°C),短暂热应激使野生型线虫hsf-1、hsp-16.2、hsp-70和hsp-90显著上调,而GE处理后显著下调;相比于常温(20°C),持续热应激使线虫HSR相关基因下调,而GE处理后hsp-16.2显著上调,并且hsf-1和hsp-90具有上调趋势,表明膳食补充GE在一定程度上可以使参与HSR相关基因的mRNA表达恢复至常态水平。以上结果表明,生姜提取物可通过调节HSR缓解秀丽隐杆线虫热胁迫。
    • 陆灿强; 舒邓群; 臧一天
    • 摘要: 热应激会引起畜禽机体代谢增强,从而引起活性氧(ROS)的过量产生而发生氧化应激;氧化应激可启动热休克反应,上调热休克蛋白(HSPs)的转录与表达;ROS和HSPs两者都可以激活核转录因子-κB(NF-κB)进而启动免疫和炎症反应.本文综述热应激引起畜禽氧化应激反应、热休克反应与免疫炎症反应的机制及三者之间的相互关系,并在此基础上总结一些营养调控缓解热应激的措施,以期认识这3种反应在畜禽热应激营养调控过程中的意义.
    • 左李平; 孙春艳
    • 摘要: 热休克蛋白(HSP)作为"分子伴侣"在蛋白质折叠、装配、转运和降解等方面,均发挥着重要作用.研究发现,肿瘤细胞的HSP水平高于正常细胞,HSP过表达在肿瘤发生、发展过程中,发挥着重要作用,并且影响肿瘤患者预后.热休克因子(HSF)1是调控真核生物热休克反应(HSR),并诱导HSP表达的主要转录因子,同时也是肿瘤发生的重要调节因子之一.近年越来越多的研究证据表明,HSP/HSF1与多发性骨髓瘤(MM)的发生及发展密切相关,HSP/HSF1作为MM的潜在治疗靶点,已受到相关研究者的重视.笔者就HSP/HSF1在MM发生及发展中的作用,HSP/HSF1抑制剂治疗MM的研究现状进行阐述,旨在为探索MM治疗的新靶点,以及改善患者预后提供参考.
    • 孙傲; 焦寒; 付杰军
    • 摘要: 目的探讨FBXW7对结直肠癌细胞中热休克转录因子1(HSF1)表达和定位的影响。方法Western blot法检测敲除FBXW7及WT的结直肠癌细胞系HCT116和DLD1中HSF1及pHSF1Ser326蛋白的表达;免疫荧光和Western blot检测在热休克及恢复期细胞中pHSF1Ser326的核蛋白表达和定位。结果过表达FBXW7α的DLD1细胞中HSF1蛋白表达显著降低(P<0.01);敲除FBXW7的HCT116和DLD1细胞中HSF1和pHSF1Ser326总蛋白表达显著升高(均P<0.05)。与WT组比较,敲除FBXW7的细胞中HSF1和pHSF1Ser326主要累积在细胞核,而胞质表达较弱;温热刺激后,WT细胞中HSF1及pHSF1Ser326表达恢复至未刺激水平,而敲除FBXW7的细胞中HSF1及pHSF1Ser326在核中有较强表达(均P<0.01)。结论敲除FBXW7的结直肠癌细胞热刺激后,细胞核HSF1水平恢复受阻,可能与缺失FBXW7不能降解胞核HSF1有关。
    • 李锐; 陈雪丹; 张庆华
    • 摘要: 目的 研究热应激致精子发育障碍的可能机制.方法 将16只雄性SD大鼠随机等分为热应激组和对照组.热应激组大鼠置于43°C高温舱处理30分钟后取出,3小时后处死所有大鼠,取睾丸组织,通过实时荧光定量PCR法检测睾丸组织中HSPA2、HSF1、HSF2、HSF5、HSFY基因mRNA的表达,Western blot法检测睾丸组织中HSPA2、HSF1、HSF2、HSF5、HSFY蛋白的表达.对照组大鼠除不进行热应激处理外,其余处理与热应激组完全一致.结果 热应激组HSPA2、HSF1、HSF2、HSF5、HSFY基因mRNA的相对表达值分别为0.50±0.17、0.62 ±0.44、0.38±0.20、0.63±0.46、0.52±0.17,蛋白的相对表达值分别为1.06±0.20、1.10±0.11、1.00±0.18、2.48±0.86、1.18±0.18,对照组HSPA2、HSF1、HSF2、HSF5、HSFY基因mRNA的相对表达值分别为1.16±0.19、1.33±0.37、0.83±0.13、1.84±1.13、1.01±0.15,蛋白的相对表达值分别为1.14±0.23、1.21±0.22、1.00±0.23、2.63±1.06、1.14±0.10,热应激组HSPA2、HSF1、HSF2、HSF5、HSFY基因mRNA的相对表达值显著低于对照组(P<0.05),热应激组与对照组HSPA2、HSF1、HSF2、HSF5、HSFY蛋白的相对表达值未见统计学上的显著差异(P> 0.05).结论 热应激可致睾丸中HSPA2、HSF1、HSF2、HSF5及HSFY基因mR-NA表达显著下调,这可能是热应激致精子发育功能障碍的潜在机制.
    • 童华生; 段鹏凯; 张兴钦; 万鹏; 安晓庆; 唐丽群; 苏磊
    • 摘要: 目的 探讨热联合内毒素(LPS)双重打击对炎症细胞分泌HMGB1的影响及相关机制.方法 建立THP-1细胞热和LPS双重打击模型,采用Western blotting检测胞内和分泌性HMGB1水平变化,p38丝裂原活化蛋白激酶(p38MAPK)磷酸化水平变化,并观察特异性抑制p38 MARK磷酸化对THP-1细胞分泌HMGB1水平的影响.结果 热联合LPS打击后,THP-1细胞内HMGB1蛋白水平与正常对照组比较明显下降(P<0.05).热联合LPS组THP-1细胞分泌HMGB1水平与LPS组比较明显升高(P<0.05).热联合LPS组p38 MAPK磷酸化活性与LPS组比较进一步增强(P<0.05);采用p38MAPK磷酸化特异性抑制剂SB203580预处理THP-1细胞后,可明显提高热联合LPS刺激后胞内HMGB1水平(P<0.05),同时明显减少HMGB1分泌(P<0.05).结论 热联合LPS刺激可促进炎症细胞HMGB1的分泌,这种分泌作用的增强与p38MAPK信号通路有关.
    • 胡艳; 周建美; 冉珂; 刘健平
    • 摘要: Objective To investigate the effects of high temperature preconditioning on hydrogen peroxide (H2 O2)-induced expression of mitochondrial metallothionein (MT) in rat cardiomyocytes.Methods The rat cardiomyocytes H9C2 cultured in vitro were randomly divided into 3 groups (n =6 each):control group (group C) ;H2O2 group (group H2O2); high temperature preconditioning group (group HTP).The cells were continuously cultured for 3 h in group C.The cells were cultured for 3 h in serum-free DMEM liquid culture medium containing H2O2 0.5 mmol/L in an incubator filled with 5% CO2 at 37 °C in group H2O2.In group HTP,the cells were cultured in serum-containing DMEM liquid culture medium,then placed in a warm bath of 42 °C for 1 h,cultured for 12 h in an incubator filled with 5% CO2 at 37 °C,DMEM liquid culture medium was then removed,and the other procedures were similar to those previously described in group H2 O2.Myocardial cell apoptosis was observed by flow cytometry.The apoptotic rate was calculated.The ultrastructure of myocardial mitochondria was examined with electron microscope.The expression of mitochondrial MT in cardiomyocytes was determined using Western blot.Results Compared with group C,the apoptotic rate was significantly increased,and the expression of mitochondrial MT was up-regulated in groups H2O2 and HTP (P < 0.01).The apoptotic rate was significantly lower,and the expression of mitochondrial MT was higher in group HTP than in group H2O2 (P < 0.01).The mitochondrial injury was attenuated in group HTP as compared with group H2 O2.Conclusion The mechanism by which high temperature preconditioning reduces H2 O2-induced myocardial damage may be related to up-regulation of expression of mitochondrial MT in cardiomyocytes and endogenous myocardium-protective mechanism in rats.%目的 探讨高温预处理对过氧化氢(H2O2)诱导大鼠心肌细胞线粒体金属硫蛋白(MT)表达的影响.方法 采用随机数字表法,将体外培养的H9C2大鼠心肌细胞分为3组(n=6):正常对照组(C组)心肌细胞加入含血清DMEM培养基,置于37°C5%CO2培养箱中3 h;H2O2组加入含0.5mmol/L H2O2的无血清DMEM培养基,置于37°C5%CO2培养箱中孵育3h;高温预处理组(HTP组)加入含血清DMEM培养基,置于42°C恒温水浴lh,行高温预处理,然后在37°C5%CO2细胞培养箱中孵育12 h,去除DMEM培养基,随后处理同H2O2组.采用流式细胞术测定心肌细胞凋亡率;观察心肌细胞线粒体超微结构;采用Western blot法测定线粒体MT的表达.结果 与C组比较,H2O2组和HTP组细胞凋率升高,线粒体MT表达上调(P<0.01);与H2O2组比较,HTP组细胞凋率降低,线粒体MT表达上调(P<0.01).HTP组心肌细胞线粒体损伤较H2 O2组减轻.结论 高温预处理减轻H2O2诱导大鼠心肌细胞损伤的机制可能与上调线粒体MT表达,增强心肌内源性保护机制有关.
    • 孙琪; 丛霞; 索佳佳; 曹荣峰; 姜忠玲; 崔凯; 高善颂; 田文儒
    • 摘要: The objectives of the study were to verify if the CaMK II (Ca +/calmodulin-dependent protein kinase II ) influences the expression of HSP70 gene in the mouse embryonic fibroblasts (MEF) with heat shock and to clarify its mechanism. The fibroblasts were heat-treated at 37t ,39^ and 41°C individually before the expressions of both CaMK II and HSF1 were detected by RT-PCR at 0. 5 ,1 ,1. 5 and 2 h of heat shock ,respectivelly. Moreover, the fibroblasts were divided into control group and myr-AIP group randomly,and cultured at 371 and 39°C respectively. The expressions of both HSP70 and HSF1 were detected. The expressions of HSF1 and CaMK II mRNA in the MEF treated at 39^ for 1 h were both extremely significantly higher (P <0. 01) than that of the control group. There was a significantly (P <0. 05) decrease of HSP70 expression in the MEF cultured at 39t treated with myr-AIP compared with its blank control. However, there was no difference in HSP70 exoression between the MEF cultured at 37X1 with or without myr-AIP. The expressions of HSF1 in the MEF treated with myr-AIP were not significantly influenced. However,the p-HSFl expression in the MEF treated with myr-AIP was significantly (P <0. 05) decreased. Moderate heat shock increases both expressions of CaMK FJ and HSF1 in mouse embryonic fibroblasts. CaMK II participates in both heat shock response and HSP70 gene expression by p-HSFl.%为证实热休克小鼠胎儿成纤维细胞中钙/钙调素依赖性蛋白激酶Ⅱ(Ca2+/calmodulin-dependent protein kinaseⅡ,CaMKⅡ)对热休克蛋白70 (Heat shock protein70,HSP70)基因表达的影响及其作用机理,将体外培养的小鼠胎儿成纤维细胞(Mouse Embryonic Fibroblasts,MEF)随机分为39°C和41°C热处理组(分别处理0.5,1,1.5,2h)和常温对照组(37°C),测定各组细胞CaMKⅡ和HSF1 mRNA的量.此外,将培养的细胞分为37°C和39°CCaMKⅡ特异性抑制剂(myr-AIP)处理组和相应的空白对照组,分别测定各组细胞HSP70、HSF1及其mRNA的量.结果表明,39°C热休克1h后HSF1和CaMKⅡ的mRNA表达量极显著高于常温对照组,经过myr-AIP处理的39°C组细胞HSP70及其mR-NA含量显著低于39°C空白对照组,而37°Cmyr-AIP处理组与37°C对照组没有显著差异;myr-AIP对37°C组和39°C组的HSF1 mRNA和蛋白含量影响均不显著,却使p-HSF1的含量显著降低.热休克能增加CaMKⅡ和HSF1 mRNA的转录,且CaMKⅡ通过磷酸化HSF1促进HSP70基因表达.
    • 宁爱丽; 胡瑞成; 戴爱国
    • 摘要: Heat shock protein 27 is an important member of small heat shock protein subfamily,which plays a key role in protection cell from various of stress injury.This paper reviews research progress on heat shock protein 27 in chronic obstructive pulmonary diseases.%热休克蛋白27是小分子热休克蛋白亚家族的重要一员,在保护细胞免受各种应激损伤的过程中发挥着重要的作用.本文就HSP27在慢性阻塞性肺疾病巾的研究进展进行简要综述.
    • 贾赤宇; 欧阳云淑; 付小兵
    • 摘要: Objective To observe the cellular phenotype conversion of human mesenchymal stem cells (MSCs) cocultured indirectly with heat-shocked human sweat gland cells (SGCs) in vitro and explore the relative mechanism. Methods MSCs and SGCs were isolated and amplified in vitro. First,primary confluent cultures of SGCs were heat-shocked at 47°C. Then, the supernatants were collected immediately and 24 hours before applied to the third generation of MSCs. After seven days, the MSCs expressing CK7, CK18 and CEA were examined by two-step immunocytochemistry and flow cytometry and compared with the control group. Results MSCs treated with the supernatants of SGCs proliferated slowly, with no obvious morphological changes during seven days. Two-step immunocytochemistry demonstrated positive staining of CK7 and CEA in some cells. Additionally, the positive rate of CK7 and CEA was 5.76% and 2.01% by flow cytometry, much higher than that of the control sample, which was only 1.12% and 0.51% respectively (P < 0.01 ). Conclusions There are some signal moleculars in the supernatants of heat-shocked SGCs, which benefits the transdifferentiation of MSCs.%目的 研究人骨髓间充质干细胞(mesenchymal stem cells,MSCs)与经热休克处理的人汗腺细胞(sweat gland cells,SGCs)体外间接共培养状态下的细胞表型转化及相关机制.方法 体外分别分离扩增人MSCs及SGCs,原代SGCs生长融合后于47°C热休克,收集即刻和24 h后的上清加入第3代MSCs,7 d后分别以二步免疫细胞化学法和流式细胞术检测MSCs表达细胞角蛋白7(CK7)、CK18和癌胚抗原(CEA)的情况并与对照组比较.结果 加入SGCs上清后MSCs生长减慢,7 d内无明显形态改变;二步免疫细胞化学法显示部分细胞CK7和CEA染色刚性;流式细胞术显示,诱导组细胞CK7和CEA阳性率分别为5.76%和2.01%,对照组为1.12%和0.51%,两者差异有统计学意义(P<0.01).结论 SGCs热损伤释放后某些信号物质,可诱导MSCs横向分化.
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