[Objectives]To investigate the mechanism of miR-23a in the proliferation of human tongue squamous cell carcinoma cells.[Methods]Clinical tissue samples of tongue squamous cell carcinoma were collected and Tca8113 and ...[Objectives]To investigate the mechanism of miR-23a in the proliferation of human tongue squamous cell carcinoma cells.[Methods]Clinical tissue samples of tongue squamous cell carcinoma were collected and Tca8113 and CAL27 were cultured.Real-time quantitative PCR was performed to detect the expressions of miR-23a and PPP2R5E in clinical tissue samples of tongue squamous cell carcinoma.MTT assay,colony formation assay and growth curve assay were used to detect the effect of miR-23a and PPP2R5E on the proliferation of human tongue squamous carcinoma cell.Luciferase reporter assay verified the regulatory relationship between miR-23a and PPP2R5E.[Results]The expression of miR-23a in tongue squamous cell carcinoma was significantly up-regulated(P<0.01).miR-23a promoted the proliferation of tongue squamous cell carcinoma cells.Bioinformatics prediction and luciferin reporting experiments showed that PPP2R5E was a direct target gene of miR-23a.The expression of PPP2R5E was decreased in tongue squamous cell carcinoma.PPP2R5E inhibited the proliferation of tongue squamous cell carcinoma cells.Overexpression of PPP2R5E can reverse the proliferation promoting effect of miR-23a on tongue squamous cell carcinoma cells.[Conclusions]miR-23a can promote the proliferation of tongue squamous cell carcinoma cells through PPP2R5E and miR-23a plays an oncogene role in the occurrence and development of tongue squamous cell carcinoma.展开更多
目的:探讨电转法沉默ATP结合盒转运子E1(ATP-binding cassette protein E1,ABCE1)基因的表达对人食管癌EC109细胞凋亡、增殖、侵袭及迁移的影响。方法:合成靶向ABCE1的siRNA序列(ABCE1-siRNA)以及阴性对照序列(NCsiRNA),电转法转染至EC...目的:探讨电转法沉默ATP结合盒转运子E1(ATP-binding cassette protein E1,ABCE1)基因的表达对人食管癌EC109细胞凋亡、增殖、侵袭及迁移的影响。方法:合成靶向ABCE1的siRNA序列(ABCE1-siRNA)以及阴性对照序列(NCsiRNA),电转法转染至EC109细胞,分别形成ABCE1-EC109、NC-siRNA-EC109细胞。RT-PCR、Western blotting检测转染后EC109细胞中ABCE1 mRNA与蛋白的表达情况,流式细胞术检测EC109细胞周期及凋亡,CCK-8法、划痕愈合实验、Transwell法分别检测EC109细胞的增殖、迁移以及侵袭的能力。结果:ABCE1-EC109细胞中ABCE1 mRNA和蛋白表达较NC-siRNAEC109细胞明显降低[(0.47±0.04)vs(0.67±0.05),(0.63±0.09)vs(0.86±0.11);均P<0.05]。与NC-siRNA-EC109细胞相比,ABCE1-EC109细胞的增殖速度明显减慢[(2.20±0.10)vs(2.91±0.13),P<0.05],细胞周期阻滞在G0/G1期细胞数目明显增多[(76.5±3.1)%vs(56.1±2.7)%,P<0.05)];细胞的凋亡率明显升高[(15.46±3.12)%vs(0.54±0.24)%,P<0.01],迁移、侵袭能力均显著下降[迁移:(8.12±0.23)vs(1.91±0.11)μm,P<0.05;侵袭:(42.56±4.68)vs(68.78±6.98)个,P<0.01]。结论:电转法沉默ABCE1基因的表达可促进食管癌EC109细胞的凋亡,抑制其体外增殖、侵袭及迁移。展开更多
目的:探讨维生素E琥珀酸酯(VES)对人食管鳞癌低分化细胞株TE-1以及高分化细胞株Eca-109增殖的抑制作用及诱发凋亡的作用。方法:不同浓度(0、5、10、15、20μg/m L)VES分别处理TE-1及Eca-109细胞24 h后,采用MTT法检测细胞增殖情况;光镜...目的:探讨维生素E琥珀酸酯(VES)对人食管鳞癌低分化细胞株TE-1以及高分化细胞株Eca-109增殖的抑制作用及诱发凋亡的作用。方法:不同浓度(0、5、10、15、20μg/m L)VES分别处理TE-1及Eca-109细胞24 h后,采用MTT法检测细胞增殖情况;光镜下观察细胞形态;DAPI染色观察细胞核凋亡形态,Western blot方法检测细胞中凋亡标志蛋白多聚ADP核糖聚合酶(PARP)的表达情况。结果:与对照组比较,MTT检测结果显示随着VES剂量增加,两种细胞株均出现了不同程度的增殖抑制,在20μg/m L VES组细胞增殖率均达到最低(TE-1:15.89%±6.22%;Eca-109:13.78%±4.89%)。光镜下细胞形态随着VES剂量增加发生明显改变,TE-1细胞在10μg/m L VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态;Eca-109细胞在15μg/m L VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态。DAPI染色结果显示,VES高剂量组(20μg/m L)两株细胞的细胞核均出现明显的凋亡形态。Western blot显示,随着VES剂量增加,凋亡标记蛋白PARP裂解激活,在20μg/m L VES处理组达到最大裂解程度。结论:VES对低分化及高分化人食管癌细胞的增殖均有抑制作用并诱导细胞发生凋亡。展开更多
基金Chengde Medical University Natural Science Foundation Projects"The Mechanism of miR-23a in the Development of Tongue Squamous Cell Carcinoma"(201722)Natural Science Foundation of Hebei Provincial Department of Education-Youth Foundatijon"The Mechanism of has-circ-0001862-miR-23a Axis in the Development of Tongue Squamous Cell Carcinoma"(QN2019079).
文摘[Objectives]To investigate the mechanism of miR-23a in the proliferation of human tongue squamous cell carcinoma cells.[Methods]Clinical tissue samples of tongue squamous cell carcinoma were collected and Tca8113 and CAL27 were cultured.Real-time quantitative PCR was performed to detect the expressions of miR-23a and PPP2R5E in clinical tissue samples of tongue squamous cell carcinoma.MTT assay,colony formation assay and growth curve assay were used to detect the effect of miR-23a and PPP2R5E on the proliferation of human tongue squamous carcinoma cell.Luciferase reporter assay verified the regulatory relationship between miR-23a and PPP2R5E.[Results]The expression of miR-23a in tongue squamous cell carcinoma was significantly up-regulated(P<0.01).miR-23a promoted the proliferation of tongue squamous cell carcinoma cells.Bioinformatics prediction and luciferin reporting experiments showed that PPP2R5E was a direct target gene of miR-23a.The expression of PPP2R5E was decreased in tongue squamous cell carcinoma.PPP2R5E inhibited the proliferation of tongue squamous cell carcinoma cells.Overexpression of PPP2R5E can reverse the proliferation promoting effect of miR-23a on tongue squamous cell carcinoma cells.[Conclusions]miR-23a can promote the proliferation of tongue squamous cell carcinoma cells through PPP2R5E and miR-23a plays an oncogene role in the occurrence and development of tongue squamous cell carcinoma.
文摘目的:探讨维生素E琥珀酸酯(VES)对人食管鳞癌低分化细胞株TE-1以及高分化细胞株Eca-109增殖的抑制作用及诱发凋亡的作用。方法:不同浓度(0、5、10、15、20μg/m L)VES分别处理TE-1及Eca-109细胞24 h后,采用MTT法检测细胞增殖情况;光镜下观察细胞形态;DAPI染色观察细胞核凋亡形态,Western blot方法检测细胞中凋亡标志蛋白多聚ADP核糖聚合酶(PARP)的表达情况。结果:与对照组比较,MTT检测结果显示随着VES剂量增加,两种细胞株均出现了不同程度的增殖抑制,在20μg/m L VES组细胞增殖率均达到最低(TE-1:15.89%±6.22%;Eca-109:13.78%±4.89%)。光镜下细胞形态随着VES剂量增加发生明显改变,TE-1细胞在10μg/m L VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态;Eca-109细胞在15μg/m L VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态。DAPI染色结果显示,VES高剂量组(20μg/m L)两株细胞的细胞核均出现明显的凋亡形态。Western blot显示,随着VES剂量增加,凋亡标记蛋白PARP裂解激活,在20μg/m L VES处理组达到最大裂解程度。结论:VES对低分化及高分化人食管癌细胞的增殖均有抑制作用并诱导细胞发生凋亡。