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A549细胞株

A549细胞株的相关文献在2000年到2022年内共计64篇,主要集中在肿瘤学、中国医学、药学 等领域,其中期刊论文62篇、会议论文2篇、专利文献123643篇;相关期刊53种,包括吉林中医药、中成药、现代生物医学进展等; 相关会议2种,包括世界中医药学会联合会中医药抗病毒研究专业委员会第一届学术年会、第十三届中国体视学与图像分析学术会议等;A549细胞株的相关文献由245位作者贡献,包括丁克清、刘磊、方艳秋等。

A549细胞株—发文量

期刊论文>

论文:62 占比:0.05%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:123643 占比:99.95%

总计:123707篇

A549细胞株—发文趋势图

A549细胞株

-研究学者

  • 丁克清
  • 刘磊
  • 方艳秋
  • 李侃
  • 谭岩
  • 龚权
  • 丁伟荣
  • 仇晓军
  • 刘春英
  • 吴文周
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 石硕; 陈铭伍
    • 摘要: 目的探讨沉默OGFR基因对非小细胞肺癌A549细胞株增殖、迁移和侵袭的影响。方法取A549细胞株,分为对照组、实验组,分别转染si-NC阴性对照、OGFR特异性的小干扰RNA。采用RT-qPCR和Westernblotting法分别检测细胞中的OGFRmRNA和蛋白,采用CCK-8实验检测细胞增殖能力,细胞划痕实验检测细胞迁移能力,Transwell侵袭实验检测细胞侵袭能力,平板克隆形成实验检测细胞集落形成能力。结果与对照组相比,实验组OGFRmRNA及蛋白相对表达量低,培养24、48、72 h细胞增殖OD值均低,穿膜细胞数少,细胞迁移率低,克隆形成细胞集落数少(P均<0.05)。结论沉默OGFR基因可降低A549细胞株OGFR基因mRNA和蛋白质的表达,在体外减弱了其增殖、迁移和侵袭能力。
    • 王莹; 付权泽; 牟琪瑞; 刘春英; 王淳; 高原
    • 摘要: 目的:探讨补中益气汤含药血清增强A549细胞对顺铂敏感性的机制是否与GSK-3β介导的Wnt/β-catenin信号通路有关。方法:制备补中益气汤含药血清作用于A549细胞株,随机分为a组(对照血清组)、b组(顺铂组)、c组(补中益气汤组)、d组(补中益气汤含药血清联合顺铂组)。流式细胞术检测细胞凋亡,Western blot检测GSK-3β、p-GSK-3β^(ser9)、p-GSK-3β^(tyr216)、β-catenin、survivin蛋白表达。结果:补中益气汤含药血清联合顺铂可降低p-GSK-3β^(ser9)、β-catenin、survivin蛋白表达,提高晚期细胞凋亡率。结论:抑制GSK-3β介导的Wnt/β-catenin信号通路激活可能是补中益气汤含药血清增强A549细胞对顺铂敏感性的作用机制之一。
    • 周楠楠; 廖海秀; 杨英; 丁萌; 唐伟; 陈礼文
    • 摘要: 目的 探讨协同信号分子B7-H3对白介素22(IL-22)的表达调控及其在肺腺癌中的临床意义.方法 采用CRISPR/Cas9技术敲除肺腺癌A549细胞B7-H3基因(A549/KO),同时收集56例肺腺癌患者血清,酶联免疫吸附实验(ELISA)分别检测A549/KO培养上清液和患者血清中的IL-22水平,并检测患者血清中可溶性B7-H3(sB7-H3)含量.分析sB7-H3与IL-22的相关性,建立Logistic回归模型对肺腺癌的危险因素进行预测,并采用受试者工作特征曲线(ROC)探讨sB7-H3、IL-22在肺腺癌诊断中的价值.结果 A549/KO细胞上清液IL-22表达水平较野生型A549降低(P<0.05).肺腺癌患者血清sB7-H3和IL-22的表达水平高于健康对照组(P<0.05).肺腺癌患者血清sB7-H3和IL-22的表达水平与pT分期、淋巴结是否转移及pTNM分期有关(P<0.05),且sB7-H3和IL-22的表达水平呈正相关(rs=0.316,P<0.05).通过多因素Logistic回归分析鉴定sB7-H3(OR=1.423,95% CI:1.139~1.778)、IL-22(OR=1.108,95% CI:1.001~1.228)为肺腺癌的危险因素,两者可作为肺腺癌诊断指标.ROC曲线分析表明,IL-22和sB7-H3联合检测(AUC =0.827,95%CI:0.727~0.903)对肺腺癌的诊断性能高于sB7-H3 (AUC=0.795,95% CI:0.690~0.877)和IL-22 (AUC=0.766,95%CI:0.658~0.853)单项检测.结论 B7-H3可通过上调IL-22表达在肺腺癌的发生与发展中发挥作用,联合检测血清sB7-H3和IL-22有助于肺腺癌的诊断与监测.
    • 邓小娟; 敖素华
    • 摘要: 目的 探讨芦根多糖抑制非小细胞肺癌生长、增殖的作用及相关分子机制.方法 建立A549细胞体外模型,加入芦根多糖干预后,CCK-8法检测细胞活性,流式细胞仪检测A549细胞凋亡情况,免疫印迹法(Western blotting)检测A549细胞的LC3-Ⅱ/Ⅰ、AKT、p-AKT、PI3K、p-PI3K蛋白表达;建立体内移植瘤小鼠模型,加入芦根多糖作用,并以顺铂为阳性对照,观察芦根多糖对荷瘤小鼠肿瘤生长影响,免疫组化法检测移植瘤小鼠A549细胞肿瘤组织凋亡蛋白Bax、Bcl-2、Caspase-3蛋白表达.结果 100 μg· mL-1的芦根多糖在48及72 h时显著抑制A549细胞增殖(P<0.05);芦根多糖可使A549细胞凋亡的比例显著升高(P<0.05),A549细胞增殖的LC3-Ⅱ/Ⅰ、p-AKT/AKT、p-PI3K/PI3K比值显著升高(P<0.05),而AKT、PI3K蛋白表达水平无明显变化.裸鼠移植A549细胞7d后,腋下开始生长肿瘤块,第13天时小鼠肿瘤体积达到90 mm3,模型成功率90.0%;给药第9天开始,顺铂组及芦根多糖组肿瘤生长曲线平缓,肿瘤体积明显低于对照组(P<0.05).给药第18天时,与对照组比较,顺铂和芦根多糖对小鼠肿瘤的抑制率分别为39.1%,35.9%(P<0.05),瘤细胞的凋亡蛋白Bax、Casepes-3表达显著升高(P<0.05),Bcl-2蛋白表达显著降低(P<0.05).结论 芦根多糖可能通过激活自噬和促进凋亡抑制A549细胞增殖,可作为一种潜在的非小细胞肺癌的治疗药物.
    • 李鹏; 温石磊; 张锋
    • 摘要: 目的探讨微小RNA-3917(miR-3917)对肺癌细胞增殖及对生物钟基因Period2(PER2)表达的影响.方法取复苏后的肺腺癌A549细胞培养至对数生长期,采用脂质体法向A549细胞转染10、20、50 nmol/L靶向miR-3917的 siRNA表达载体pEGFP-miR-3917-siRNA质粒,转染48 h后荧光显微镜下观察绿色荧光蛋白的表达;根据实验设计分为对照组、空载体组和干扰组,空载体组及干扰组的质粒浓度均为50 nmol/L,采用实时荧光定量PCR(QPCR)检测转染48 h后的 miR-3917相对表达量,QPCR和Western blotting分别检测转染48 h后的PER2 mRNA和蛋白水平,采用CCK-8法检测各组转染24、48、72 h的A549细胞增殖抑制率,双荧光素酶靶标实验验证miR-3917与PER2的相互关系.结果QPCR检测发现对照组、空载体组和干扰组的miR-3917相对表达量依次为1.007±0.018、1.068±0.084和0.171±0.052,干扰组的miR-3917相对表达量低于对照组和空载体组,差异有统计学意义(P<0.05).对照组、空载体组和干扰组的PER2 mRNA相对表达量依次为1.060±0.129、1.086±0.229和2.920±0.927,蛋白表达量依次为0.204±0.046、0.183±0.043和0.512±0.117,干扰组的 PER2 mRNA和蛋白水平均高于对照组和空载体组,差异有统计学意义(P<0.05).与对照组和空载体组比较,干扰组的A549细胞增殖能力下降,转染24、48、72h后的增殖抑制率依次为(34.192±5.268)%、(33.527±6.603)%和(30.591±7.788)%,均高于其余两组,差异有统计学意义(P<0.05).miR-3917可显著抑制野生型PER2-3' UTR质粒转染细胞的荧光素酶活性,而对突变型PER2-3'UTR质粒转染细胞的荧光素酶活性并无影响.结论下调miR-3917可抑制肺癌细胞增殖并升高PER2水平, miR-3917对PER2有靶向调控作用,可作为肺癌防治的新靶点.%Objective To investigate the effect of microRNA-3917 (miR-3917) on the proliferation of lung cancer cells and the expression of biological clock gene Period2 (PER2). Methods The recovered A549 cells were cultured to logarithmic growth phase. The pEGFP-miR-3917-siRNA plasmid vector targeting miR-3917 was transfected into A549 cells by 10, 20 and 50 nmol/L liposome. The expression of green fluorescent protein was observed under fluorescence microscope after 48 h transfection. According to the experimental design, they were divided into control group, empty load group and interference group. The plasmid concentration in empty load group and interference group was 50 nmol/L. The real-time quantitative PCR (QPCR) was used to detect the relative expression of miR-3917 at 48 h after transfection. The mRNA and protein levels of PER2 were detected by QPCR and Western blotting after at 48 h after transfection, respectively. The inhibitive rates of proliferation at 24, 48 and 72 h after transfection were detected by CCK-8 assay. Dual luciferase target assay was employed to verify that PER2 was a direct target of miR-3917. Results The relative expression levels of miR-3917 in control group, empty load group and interference group were 1.007±0.018,1.068±0.084 and 0.171±0.052. The relative expression level of miR-3917 in the interference group was lower than that in the control group and empty load group, and the difference was statistically significant (P<0.05). The relative expression levels of PER2 were 1.060±0.129, 1.086±0.229 and2.920±0.927 in the control group, empty load group and interference group, and the protein levels were 0.204±0.046, 0.183±0.043 and 0.512±0.117. The mRNA and protein levels of PER2 in the interference group were higher than those in the control group and empty load group, and the difference was statistically significant (P<0.05). Compared with the control group and empty load group, the proliferative ability decreased in interference group. The inhibitive rates of proliferation were (34.192±5.268)%, (33.527±6.603)% and (30.591±7. 788)% at 24,48,72 h in interference group, higher than other two groups, and the difference was statistically significant (P<0.05). miR-3917 could significantly inhibit the luciferase activity of wild-type PER2-3' UTR plasmid transfected cells, but had no significant effect on the luciferase activity of mutant PER2-3 ' UTR plasmid transfected cells. Conclusion Downregulation of miR-3917 can inhibit the proliferation of lung cancer cells and increase the expression of PER2. miR-3917 has a targeted regulation effect on PER2, and can be used as a new target for the prevention and treatment of lung cancer.
    • 张录民; 姚健; 陈玲玲
    • 摘要: 目的 探究C595对人肺癌A549细胞株抑制增殖和诱导凋亡作用.方法 MUC1蛋白核心的重复序列IgG3单克隆抗体(C595)经免疫荧光标记及流式细胞术检测,分析C595对人肺癌A549细胞株抑制增殖和诱导凋亡.结果 A549细胞膜表面覆盖97.3%MUC1表达量,阴性对照组覆盖MUC1表达量1.03%;C595浓度增加,A549细胞株增殖抑制效果越强,凋亡率增加,存活率降低.结论 单克隆抗体C595在体外抑制人肺癌细胞A549生长,C595浓度增加,A549细胞存活率降低,凋亡率增加.
    • 费东亮; 胡影; 岳金金; 马鸣潇
    • 摘要: Objective To compare the growth of three different cancer cell lines on chick chorioallantoic membrane (CAM), to select the best transplanted cancer cell line for establishing a transplanted tumor model and to observe the biological characteristics.Methods The human lung cancer cell line A549, human tongue cancer cell line TCA8113 and human liver cancer cell line QGY7703 were respectively inoculated into CAM at the 7th day of age.The chick embryo survival rate, tumor survival rate, tumor formation rate and induced angiogenesis were detected and the growth characteristics of the transplanted tumor model were observed.Results Compared with the groups inoculated with A549 cells and QGY7703 cells, the tumor formation rate of TCA8113 cells was the highest (P < 0.05), to be the best cancer cell line for transplanted tumor.The optimal inoculated number of cells was 8.0×106/chick embryo, the optimal growth period of the tumor was 4~8 d, and the best experiment time was 7 d after inoculation.Conclusion The TCA-CAM transplanted tumor model of tongue squamous cell cancer is successfully established for further study of the biological characteristics and mechanisms of tumor growth, angiogenesis, invasion and metastasis, and provide a good experimental animal model for anti-tumor drug screening.%目的 通过比较三种不同癌细胞株在鸡胚绒毛尿囊膜(chick chorioallantoic membrane,CAM)上的生长情况,从中筛选最佳移植癌细胞株,建立移植瘤模型并观察生物学特性.方法 分别将人肺癌A549株、舌鳞癌TCA8113株与人肝癌QGY7703株接种于7日龄鸡胚CAM上,对各自鸡胚成活率、瘤株成活、成瘤率和诱导血管生成情况等指标进行检测,并观察筛选移植瘤模型生长特性.结果 与人肺癌A549株和肝癌QGY7703株接种组相比,舌鳞癌TCA8113株接种组成瘤率最高(P < 0.05),为最佳移植癌细胞株,最佳接种癌细胞数量为8.0×106/个,接种后瘤体最佳生长周期为4 ~ 8 d,最佳实验时间为接种后第7 天.结论 筛选建立了舌鳞癌TCA-CAM移植瘤模型,为深入研究肿瘤生长生物学特性、血管生成机制、侵袭转移机制和筛选抗肿瘤药物提供了良好的实验动物模型.
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