您现在的位置: 首页> 研究主题> 人肝癌细胞株

人肝癌细胞株

人肝癌细胞株的相关文献在1991年到2022年内共计94篇,主要集中在肿瘤学、中国医学、药学 等领域,其中期刊论文78篇、会议论文3篇、专利文献379777篇;相关期刊65种,包括环球中医药、实用临床医学、中西医结合肝病杂志等; 相关会议3种,包括第19届全国儿科药学学术会议、2006第六届中国药学会学术年会、第七届全国中药和天然药物学术研讨会等;人肝癌细胞株的相关文献由354位作者贡献,包括吴伟忠、孙惠川、李薇薇等。

人肝癌细胞株—发文量

期刊论文>

论文:78 占比:0.02%

会议论文>

论文:3 占比:0.00%

专利文献>

论文:379777 占比:99.98%

总计:379858篇

人肝癌细胞株—发文趋势图

人肝癌细胞株

-研究学者

  • 吴伟忠
  • 孙惠川
  • 李薇薇
  • 樊嘉
  • 汤钊猷
  • 王柯敏
  • 王鲁
  • 羊小海
  • 谭誉宇
  • 郭秋平
  • 期刊论文
  • 会议论文
  • 专利文献

搜索

排序:

年份

    • 康燕; 魏玲; 王永霞; 王立云
    • 摘要: 目的 研究罗格列酮对人肝癌HepG2细胞周期和凋亡的影响.方法 设不同浓度罗格列酮组(10、25、50.0、100.0 μg/ml)、2‰二甲基亚砜的RPMI1640培养基加细胞为阴性对照组.应用 MTT法检测罗格列酮对肝癌HepG2细胞的增殖抑制和生长活性,流式细胞仪检测细胞周期和凋亡.结果 罗格列酮对肝癌HepG2细胞具有较强的体外毒性,48 h IC50为41.6 μg/ml.肝癌HepG2细胞活性随着用药剂量和作用时间的增加而不断下降,出现剂量-效应和时间-效应的关系.罗格列酮作用48 h后,肝癌HepG2细胞G0/G1期比例显著升高,S期细胞比例有所降低,到G2/M期细胞的比例明显下降,并呈明显的剂量依赖性.罗格列酮对HepG2细胞作用48 h后可以诱导肿瘤细胞产生凋亡,并且呈剂量依赖性.结论 罗格列酮能抑制肝癌HepG2细胞生长并促进其凋亡.%Objective To investigate the effects of rosiglitazone on cell cycle and apoptosisof human hepatoma cell line HepG2.Methods This study set up rosiglitazone different concentrations groups(10,25,50,100 μg/ml)and negative control group(2‰DMSO+RPMI1640 medium+cells).The antir proliferation effect and growth activity of rosiglitazone on human hepa-tocellular carcinoma HepG2 cells were detected by MTT method,the cell cycle and apoptosis were detected by flow cytometry.Re-sults The rosiglitazone on hepatocellular carcinoma HepG 2 cells had strong toxicity,48 h IC50 was the 41.6 μg/ml.The growth activity decreased with the dose and time increases,showing a dose-effect relationship and time-dependent.After 48h incubation of rosiglitazone,the G0/G1phase HepG2 cells significantly increased,S phase HepG2 cells increased,and G2/M phase HepG2 cells significantly increased,and showing a dose-effect relationship.After 48 h incubation of rosiglitazone,the rosiglitazone can induce apoptosis of tumor cells,and showing a dose-effect relationship.Conclusion Rosiglitazone can inhibit the growth of HepG 2 cells and promote their apoptosis.
    • 史国军; 叶兴涛; 屠小龙; 施航; 董晶; 陆宁; 何国浓
    • 摘要: 目的:研究冬凌草甲素对人肝癌细胞株SMMC-7721的增殖抑制及作用机制。方法:采用不同浓度的冬凌草甲素作用于人肝癌细胞SMMC-7721,以四甲基偶氮唑蓝(MTT)法检测细胞增殖能力,划痕实验检测细胞迁移能力,Western Blot法检测E-钙黏蛋白(E-cad)、波形蛋白(Vimentin)的表达。结果:MTT法显示不同浓度的冬凌草甲素可抑制人肝癌细胞SMMC-7721的增殖,抑制作用呈时间和剂量依赖性。划痕实验显示抑制细胞迁移能力,Western Blot法显示,人肝癌细胞SMMC-7721的E-cad随冬凌草甲素浓度增加而表达增加,Vimentin随药物浓度增加而表达下降。结论:冬凌草甲素能抑制人肝癌细胞SMMC-7721的生长及迁移能力,其机制可能与上调E-cad的表达,降低Vimentin的表达有关。
    • 肖亚运; 吴为; 周晓倩; 陈压西; 阮雄中; 赵蕾
    • 摘要: 目的 研究阿托伐他汀在炎症状态下对人肝癌细胞株HepG2细胞氧化应激和脂质积聚的影响.方法 将普通HepG2细胞分为为3组:正常组、模型组[用100 ng·mL-1肿瘤坏死因子(TNF-α)处理]及实验组(用100 ng·mL+1TNF-α +10 μmol·L-1阿托伐他汀处理),3组同时负荷100 μg·mL-1低密度脂蛋白(LDL),处理时间24h-用油红O染色测定细胞内脂质含量;以荧光定量聚合酶链式反应和免疫印迹法分别检测HepG2细胞脂肪酸合酶(FAS)、乙酰辅酶A羧化酶(ACC)和固醇调节元件结合蛋白1(SREBP1)的基因和SREBP1蛋白表达;以二氯二氢荧光素-乙酰乙酸酯(DCFH-DA)荧光探针染色检测HepG2细胞内活性氧化产物(ROS)的含量;以比色法检测HepG2细胞过氧化氢(H2O2)和丙二醛(MDA)的含量.结果 正常组与模型组SREBP1蛋白灰度值分别为1.01±0.001,1.61±0.34,这2组的SREBP1 mRNA水平分别为1.01±0.16,3.61 ±0.39,这2组的FAS的mRNA水平分别是1.03 ±0.32,1.99±0.36,这2组的ACC的mRNA水平分别是0.95±0.29,2.37±0.52.与正常组相比,模型组的细胞FAS、ACC、SREBP1的基因和SREBP1的蛋白表达明显增加,差异均有统计学意义(均P <0.05).与模型组相比,实验组的HepG2FAS、ACC、SREBP1的基因和SREBP1的蛋白灰度值分别是2.95±0.92,3.99 ±1.16,2.85 ±0.91,2.94 ±0.65,实验组的HepG2 FAS、ACC、SREBP1的基因和SREBP1的蛋白表达明显增加,差异均有统计学意义(均P<0.05).表明在炎症状态下,阿托伐他汀进一步加重了HepG2细胞内脂质的沉积.正常组、模型组与实验组的细胞ROS含量(以荧光强度代表)分别为1.00 ±0.20,1.77±0.25,3.20±0.53;正常组、模型组与实验组的H2 O2含量分别为(2.30±0.31),(4.32±0.77),(5.31±0.75) nmol·mg-1;这2组的MDA含量分别为(0.78±0.22),(1.86±0.23),(3.43±1.15)nmol·mg-1,与正常组比较,模型组差异均有统计学意义(均P <0.05);与模型组比较,实验组差异均有统计学意义(均P <0.05).结论 在炎症状态下,阿托伐他汀诱导HepG2细胞氧化应激,激活SREBP1/FAS/ACC通路,加重细胞内脂质积聚.%Objective To investigate the effect of atorvastatin on oxidative stress and intracellular lipid accumulation in HepG2 cells under inflammatory state and explore the underlying mechanism.Methods HepG2 cells were treated with 100 ng · mL-1 TNF-α,100 ng · mL-1 TNF-α ± 10 μmol · L-1 atorvastatin in the presence of LDL for 24 h.Oil red O staining was used to examine the intracellular lipid contents.The mRNA and protein expressions of lipogenic genes (FAS,ACC and SREBP1) were detected by real-time polymerase chain reaction and Western blot.ROS levels were measured with the fluorescent probe of DCFH-DA.Contents of H2O2 and MDA were determined using the colorimetric method.Results Compared with normal group(the gray value of SREBP1 was 1.01 ± 0.001),the gray value of SREBP1 in model group was 1.61 ± 0.34.The mRNA levels in normal group of SREBP1,FAS,ACC respectively were 1.01 ± 0.16,1.03 ± 0.32,0.95 ± 0.29,the values in model group respectively were 3.61 ± 0.39,1.99 ± 0.36,2.37 ± 0.52,the differences were statistically significantly (P < 0.05).Compared with model group,the mRNA levels of SREBP1,FAS,ACC and the gray value of SREBP1 in experimental group respectively were 2.95 ± 0.92,3.99 ± 1.16,2.85 ± 0.91,2.94 ± 0.65,the differences were statistically significantly(P <0.05).At the same time,compared with normal group,the levels of ROS(fluorescenceintensity),H2O2,MDA respectively were 1.00 ±0.20,and (2.30 ±0.31) (0.78 ±0.22) nmol · mg-1,the levels in model group respectively were 1.77 ± 0.25 and (4.32 ± 0.77),(1.86 ± 0.23) nmol · mg-1,the differences were statistically significantly (P < 0.05).Compared with model group,the levels of ROS,H2 O2,MDA in HepG2 cells in experimental group respectively were 3.2 ±0.53 and (5.31 ±0.75),(3.43 ± 1.15) nmol · mg-1,the differences were statistically significantly(P < 0.05).Conclusion Atorvastatin induced intracellular lipid accumulation in HepG2 cells under inflammatory stress,which may be associated with the increased oxidative stress.
    • 农宜熙; 黄俊玲; 黄赞松; 周喜汉
    • 摘要: 当前,原发性肝癌是我国高发的恶性肿瘤,死亡率高,治疗困难,对其研究一直是热点.然而,考虑到人道主义精神,肝癌相关研究无法直接在人体上进行.人肝癌细胞株模型的建立打破了这一瓶颈,其来源于人肝癌患者组织,具有一套完整的人体遗传基因,传代较稳定,是合适的实验对象.本文介绍了目前实验中常用的人肝癌细胞株SMMC7721、Bel-7402、MHCC97、HepG2、Hep3B、Huh-7、PLC/PRF/5的来源、特性,与肝癌细胞株的优势、作用、实验应用,希望能有助于该领域的研究.
    • 林霖; 盛夏; 吉猛; 伍开明; 林勇; 曾欣
    • 摘要: 目的:利用不同浓度油酸处理人肝肿瘤细胞株HepG2,选取最佳浓度油酸后,观察最佳浓度的油酸对细胞脂质合成及代谢、肝细胞功能相关基因表达的影响及NF-κB、IL-6通路的变化,建立稳定高效的肝细胞脂肪变性体外研究模型.方法:将HepG2细胞用不同浓度油酸(0、0.5、0.75、1.25、1.5 mM)处理,油红O染色选取最佳浓度后,利用Realtime RT-PCR检测细胞内脂质合成、代谢及肝细胞功能相关基因表达情况,Western blot检测细胞内TLR4-TNFα-NF-κB及IL-6通路活性.结果:利用0.5 mM浓度油酸处理HepG2后,细胞未见明显死亡现象,细胞内脂质合成指标表达增多、代谢指标表达也明显增加,肝细胞功能相关基因表达下调,TLR4-TNFα-NF-κB、IL-6通路激活.结论:0.5 mM浓度油酸处理细胞可诱导HepG2脂肪变性,利用最佳浓度油酸处理细胞可作为NAFLD体外研究的细胞模型.
    • 杨阳; 罗萍
    • 摘要: Objective To investigate the effect of recombinant human erythropoietin (rhEPO) on human hepatoma cell line (HepG2) grown in nude mice with subcutaneous tumors, and the relationship with erythropoietin (EPO), erythropoietin re-ceptor (EPOR), endothelial growth factor (VEGF), Bcl-2 (B lymphocytes/leukemia-2 gene) expression in time-effect and dose-effect. Methods The model in BALB/C mice were inoculated subcutaneously with HepG2. After tumor formation , the mice were randomly divided into rhEPO low dose group, high dose group and negative control group (PBS group). The mice were administered. The second and the fourth week of each group tumor growth was observed by HE staining of tumor tissue pathology, and applied real-time PCR technology to detect tumors in mRNA levels of EPO, EPOR, VEGF, Bcl-2. Results The tumor volume growth rate in the control group were higher than the experimental group; real-time PCR results showed that:① Compared with the control group, high-dose group and low dose group EPO mRNA expression in the two weeks group were lower, the differences were not statistically significant (P>0.05);EPOR mRNA expression decreased (P0.05); in the four weeks group, high dose group and low dose group EPO, EPOR mRNA expression were lower than the control group (P0.05). ②In the two weeks group, high dose group compared with low-dose group,the four genes decreased, but the differences were not statistically sig-nificant (P>0.05). In the four weeks group, high dose group compared with low-dose group EPO, EPOR mRNA expression in-creased slightly, but the differences were not statistically significant (P>0.05); high dose group compared with low-dose group VEGF, Bcl-2 mRNA expression decreased, but the differences were not statistically significant (P>0.05). ③In rhEPO high dose group, four weeks group compared with two weeks group, four genes expression decreased slightly, but the differences were not statistically significant (P>0.05); in rhEPO low dose group, four weeks group compared with two weeks group, EPO mRNA expression decreased (P0.05). Conclusion Different doses of rhEPO and rhEPO different time used on the model of HepG2, have no significant effect on VEGF,Bcl-2 mRNA expression, no direct evidence shows that rhEPO can influence HepG2 sub-cutaneous tumor growth.%目的:探讨重组人促红细胞生成素(rhEPO)对人肝癌细胞株(human hepatoma cell line,HepG2)裸鼠皮下移植瘤的生长影响,及其与促红细胞生成素(EPO)、促红细胞生成素受体(EPOR)、内皮生长因子(VEGF)、Bcl-2(B淋巴细胞/白血病-2基因)表达的时效和量效关系。方法在BALB/C裸鼠皮下接种人肝癌细胞(HepG2)建立模型,成瘤后随机将其分为rhEPO低剂量组、高剂量组,阴性对照组(PBS组),分组给药,分别于第2周和第4周观察各组肿瘤生长情况,采用HE染色观察肿瘤组织病理情况,应用real-time PCR技术检测肿瘤组织中EPO、EPOR、VEGF、Bcl-2的mRNA水平。结果对照组的肿瘤体积增长幅度均高于实验组肿瘤体积增长幅度;real-time PCR的结果显示:①与对照组比较,第2周高剂量组和低剂量组EPO mRNA表达降低,差异无统计学意义(P>0.05);EPOR mRNA表达降低(P0.05)。第4周高剂量组和低剂量组EPO、EPOR mRNA较对照组表达降低(P0.05)。②第2周高剂量组4个基因表达均较低剂量组降低,但差异无统计学意义(P>0.05)。第4周高剂量组EPO、EPOR mRNA表达较低剂量组略有升高,但差异无统计学意义(P>0.05);高剂量组VEGF、Bcl-2 mRNA表达较低剂量组降低,但差异无统计学意义(P>0.05)。③EPO高剂量组第4周与第2周比较4个基因的表达均有所下降,但差异无统计学意义(P>0.05);EPO低剂量组第4周与第2周比较EPO mRNA表达下降(P0.05)。结论不同剂量的rhEPO及rhEPO作用时间的不同对HepG2肿瘤组织的VEGF、Bcl-2 mRNA表达均无明显影响,无直接证据显示rhEPO可引发HepG2皮下移植瘤的生长。
    • 张懿; 倪鎏达; 周丰; 杨峻; 程明亮; 傅青春; 陈成伟; 吴银霞
    • 摘要: Objective To study the effects of reduced glutathione (GSH)on doxorubicin (DOX)induced proliferation and apoptosis in HepG2,and to investigate the expression of NF-κB p65,Bcl-2 in apoptostic HepG2 induced by DOX monotherapy and DOX combination with GSH,respectively.Methods Four groups were devided,including blank group:RPMl l640 medium only;control group:HepG2 cells were cultured in the same volume of medium;DOX group:cells were cultured in medium containing DOX;DOX+GSH group:cells were cultured in medium containing DOX and GSH.MTT assay was performed to probe proliferation of HepG2 cell.Flow cytometry was carried out to determine early apoptosis rate of HepG2 cells.Real-time polymerase chain reaction was administered to investigate NF-κB p65 mRNA expression. Western blotting was used to document protein expression of NF-κB p65 and Bcl-2.The experimental data was analyzed by SPSS version 19.0 software.Results (1)HepG2 cell proliferation was inhibited time-and dose-dependently in both DOX group and DOX + GSH group at 24 h or 48 h or 72 h.Additionally,the proliferation rate was higher in DOX group than that in DOX+GSH group(P <0.05).(2)The apoptosis rate of HepG2 was (0.733±0.153)% in control group,(28.400 ±0.007)% in DOX group,(15.500±0.006)% in DOX+GSH group,respectively,which showed statistically significant difference between the later two groups and control group (P <0.01 ),as well as between DOX group and DOX+ GSH group (P <0.01).(3)The mRNA expression of NF-κB p65 in DOX+GSH group was higher than that in DOX group (P <0.05).(4)The protein expression of NF-κB p65 and Bcl-2 in DOX+GSH group was higher than that in DOX group (P <0.05 ).Conclusion DOX and GSH combination therapy could attenuate chemotherapeutic effect though a potential mechanism by increasing expression of NF-κB p65 and Bcl-2.The combination of DOX and GSH in chemotherapy for cancer patients should be avoided.%目的:研究还原型谷胱甘肽(GSH)对多柔比星(DOX)处理 HepG2细胞株增殖及凋亡的影响;探索核转录因子(NF)-κB p65、Bcl-2在 DOX 单药及联合 GSH 诱导 HepG2细胞凋亡后的表达及其意义。方法实验分4组,空白组:培养液,对照组:培养液+HepG2细胞+RPMl l640培养基,DOX 组:培养液+HepG2细胞+DOX,DOX+GSH 组:培养液+HepG2细胞+DOX+GSH。MTT 法检测 HepG2细胞生长,流式细胞仪检测细胞早期凋亡率,实时荧光定量 PCR 法检测 NF-κB p65 mRNA 的表达,Western 印迹检测 NF-κB p65及 Bcl-2的表达。结果(1)DOX 组和 DOX+GSH 组作用细胞24 h、48 h、72 h 均能显著抑制 HepG2细胞增殖,DOX 组抑制率显著高于 DOX+GSH 组(P <0.05),且抑制率具有时间和剂量依赖性。(2)对照组凋亡率为(0.733±0.153)%,DOX 组凋亡率为(28.400±0.007)%,DOX+GSH 组凋亡率为(15.500±0.006)%;DOX 组、DOX+GSH 组分别与对照组相比,差异有统计学意义(P <0.01);DOX 组与 DOX+GSH 组相比,差异有统计学意义(P <0.01)。(3)两组在处理细胞24 h 后,DOX+GSH 组 NF-κB p65mRNA 表达显著高于 DOX组(P <0.05)。(4)DOX 组 NF-κB p65、Bcl-2表达较对照组增高,DOX+GSH 组表达较 DOX 组表达增高。结论 GSH 与DOX 联合使用可导致 DOX 化疗效果下降,其机制可能是通过进一步上调 NF-κB p65和 Bcl-2的表达实现的。临床上使用DOX 化疗的肿瘤患者应避免同时使用 GSH。
  • 查看更多

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号