摘要
目的：探讨微小 RNA-22（miRNA-22）在食管癌及胃癌组织和细胞株中的表达及临床意义。方法采用实时定量 PCR 法分别检测人食管癌细胞系 ECA109、TE-1、TE-8、TE-13及人正常食管上皮细胞HEEC、48例食管癌及癌旁组织、人胃癌细胞系 SGC-7901、MKN-45、NCI-N87、AGS、NUGC-3和 SUN-1及人胃黏膜上皮细胞系 GES-1、正常胃成纤维细胞 NSFC 和88例胃癌及癌旁组织中 miRNA-22的表达。结果 miRNA-22在四种人食管癌细胞系中的表达明显低于人正常食管上皮细胞系，在六种人胃癌细胞系中的表达明显低于人胃黏膜上皮细胞系及正常胃成纤维细胞系。食管癌组织中 miRNA-22相对表达量为（3．51±1．05），明显低于相应正常癌旁组织的（11．23±2．95），差异有统计学意义（t ＝18．13，P ＜0．05），胃癌组织中 miRNA-22相对表达量为（2．15±1．23），明显低于相应正常癌旁组织的（9．14±2．86），差异有统计学意义（t ＝22．93，P ＜0．05）。结论 miRNA-22在食管癌及胃癌组织及细胞中的表达明显低于癌旁正常组织及正常食管及胃上皮细胞，为进一步研究食管癌及胃癌的发病机制、早期诊断及药物治疗奠定了基础。
Objective To investigate the expression and clinical value of miRNA -22 in esophageal and gastric cancer tissues and cell lines.Methods Realtime -PCR was performed to detect the expression of miRNA -22 in human esophageal cancer cell lines ECA109,TE -1,TE -8,TE -13 and normal esophageal epithelial cells HEEC,48 cases of esophageal cancer tissues and matched adjacent normal tissues,human gastric cancer cell lines SGC -7901,MKN -45,NCI -N87,AGS,NUGC -3,SUN -1,normal human gastric mucosa cell line GES -1 and normal stomach fibroblastic cell NSFC,88 cases of gastric cancer tissues and matched adjacent normal tissues.Results The expression of miRNA -22 was much less in four esophageal cancer cell lines than that of immortalized normal esophageal epithelial cells HEEC,and the expression of miRNA -22 was much less in six gastric cancer cell lines than that of gastric mucosal epithelial cell line GES -1 and normal stomach fibroblastic cell line NSFC.The esophageal cancer tissues showed aberrant down regulation of miRNA -22 compared with the adjacent non -tumor tissues [（3.51 ±1.05）vs.（11.23 ±2.95）,t =18.13,P 〈0.05].The gastric cancer tissues showed aberrant down regula-tion of miRNA -22 compared with the adjacent non -tumor tissues [（2.15 ±1.23）vs.（9.14 ±2.86）,t =22.93, P 〈0.05].Conclusion The expression of miRNA -22 was much lower in esophageal and gastric cancer tissues and cell lines,which provided basement to nosogenesis,early diagnosis and create drug treatment of the cancers.
出处
《中国基层医药》
CAS
2016年第22期3404-3407,I0002,共5页
Chinese Journal of Primary Medicine and Pharmacy
基金
黑龙江省卫生和计划生育委员会科研课题（2014-129）
关键词
食管肿瘤
胃肿瘤
细胞株
微小
RNA-22
Esophageal neoplasms
Gastric neoplasms
Cell lines
microRNA - 22
