目的检测人非小细胞肺癌(non small cell lung cancer,NSCLC)组织中microRNA-205表达的变化及分析肺腺癌有淋巴结转移患者组织中microRNA-205与EMT相关标志基因表达的相关性。方法收集2011年12月~2013年10月笔者医院收治的NSCLC患者7...目的检测人非小细胞肺癌(non small cell lung cancer,NSCLC)组织中microRNA-205表达的变化及分析肺腺癌有淋巴结转移患者组织中microRNA-205与EMT相关标志基因表达的相关性。方法收集2011年12月~2013年10月笔者医院收治的NSCLC患者75例,每例患者另取癌旁组织作为对照,荧光定量PCR法检测肿瘤组织microRNA-205的表达及有淋巴结转移患者肺癌组织中EMT相关基因Slug、Snail、vimentin mRNA的表达情况。结果NSCLC癌组织microRNA-205的表达在〈3cm肿瘤患者(19.56±10.81 vs 29.36±10.37)、有淋巴结转移(15.46±7.03 vs 37.98±10.35)或临床分期为Ⅰ~Ⅱ(19.09±9.23 vs 30.21±8.96)患者组织中相对低表达,在肿瘤大小、淋巴结转移或临床分期之间差异具有统计学意义(P〈0.05),且29例淋巴结转移肺腺癌患者癌组织microRNA-205与EMT重要转录因子Slug和Snail的表达呈显著负相关(Pearson r=-0.417, P=0.024;Pearson r=-0.388, P=0.038)。结论NSCLC癌组织microRNA-205的表达与淋巴结转移密切相关,可能通过调控Slug和Snail分子参与肺腺癌的侵袭转移过程,将为寻找治疗肺癌转移的策略提供新靶点。展开更多
BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact mo...BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact molecular mechanisms leading to the progression of HCC are still unclear.Research has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor tissues.In this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between them.AIM To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC patients.METHODS In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC patients.Furthermore,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,etc.The statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank test.RESULTS In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival rate.ASH1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated region.Furthermore,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via ASH1L.For the exploration mechanism,we found ASH1L may promote an immunosuppressive microenvironment in HCC and ASH1L affects the expression of the cell junction protein zonula occludens-1,which is potentially relevant to the immune system.CONCLUSION Loss function of microRNA-142-3p induces cancer progression and immune evasion through upregulation of ASH1L in HCC.Both microRNA-142-3p and ASH1L can feature as new biomarker for HCC in the future.展开更多
文摘目的检测人非小细胞肺癌(non small cell lung cancer,NSCLC)组织中microRNA-205表达的变化及分析肺腺癌有淋巴结转移患者组织中microRNA-205与EMT相关标志基因表达的相关性。方法收集2011年12月~2013年10月笔者医院收治的NSCLC患者75例,每例患者另取癌旁组织作为对照,荧光定量PCR法检测肿瘤组织microRNA-205的表达及有淋巴结转移患者肺癌组织中EMT相关基因Slug、Snail、vimentin mRNA的表达情况。结果NSCLC癌组织microRNA-205的表达在〈3cm肿瘤患者(19.56±10.81 vs 29.36±10.37)、有淋巴结转移(15.46±7.03 vs 37.98±10.35)或临床分期为Ⅰ~Ⅱ(19.09±9.23 vs 30.21±8.96)患者组织中相对低表达,在肿瘤大小、淋巴结转移或临床分期之间差异具有统计学意义(P〈0.05),且29例淋巴结转移肺腺癌患者癌组织microRNA-205与EMT重要转录因子Slug和Snail的表达呈显著负相关(Pearson r=-0.417, P=0.024;Pearson r=-0.388, P=0.038)。结论NSCLC癌组织microRNA-205的表达与淋巴结转移密切相关,可能通过调控Slug和Snail分子参与肺腺癌的侵袭转移过程,将为寻找治疗肺癌转移的策略提供新靶点。
基金Supported by the Haihe Laboratory of Cell Ecosystem Innovation Fund,No.22HHXBJC00001the Key Discipline Special Project of Tianjin Municipal Health Commission,No.TJWJ2022XK016.
文摘BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated mortality.Efficient therapeutic targets are beneficial to treat and predict the disease.Currently,the exact molecular mechanisms leading to the progression of HCC are still unclear.Research has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor tissues.In this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between them.AIM To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC patients.METHODS In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC patients.Furthermore,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,etc.The statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank test.RESULTS In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival rate.ASH1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated region.Furthermore,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via ASH1L.For the exploration mechanism,we found ASH1L may promote an immunosuppressive microenvironment in HCC and ASH1L affects the expression of the cell junction protein zonula occludens-1,which is potentially relevant to the immune system.CONCLUSION Loss function of microRNA-142-3p induces cancer progression and immune evasion through upregulation of ASH1L in HCC.Both microRNA-142-3p and ASH1L can feature as new biomarker for HCC in the future.