BACKGROUNDLong noncoding RNAs (lncRNAs) are aberrant and play critical roles in gastriccancer (GC) progression and metastasis. Searching for coexpressed lncRNAclusters or representative biomarkers related to malignant...BACKGROUNDLong noncoding RNAs (lncRNAs) are aberrant and play critical roles in gastriccancer (GC) progression and metastasis. Searching for coexpressed lncRNAclusters or representative biomarkers related to malignant phenotypes of GC mayhelp to elucidate the mechanism of tumor development and predict the prognosisof GC.AIMTo investigate the prognostic value of NOTCH1 associated with lncRNA in T cellacute lymphoblastic leukemia 1 (NALT1) in GC and the mechanism of itsinvolvement in GC invasion and metastasis.METHODSRNA sequencing and corresponding clinical data were downloaded from TheCancer Genome Atlas database. The significance module was studied byweighted gene coexpression network analysis. A total of 336 clinical sampleswere included in the study. Gene silencing, reverse transcription polymerasechain reaction, western blotting, scrape motility assay, and Transwell migrationassay were used to assess the function of hub-lncRNAs.RESULTSAt the transcriptome level, 3339 differentially expressed lncRNAs were obtained.weighted gene coexpression network analysis was used to obtain 15 lncRNAclusters and observe their coexpression. Pearson’s correlation showed that blue module was correlated with tumor grade and survival. NALT1 was the hublncRNAof blue module and was an independent risk factor for GC prognosis.NALT1 was overexpressed in GC and its expression was closely related toinvasion and metastasis. The mechanism may involve NALT1 regulation ofNOTCH1, which is associated with lncRNA in T cell acute lymphoblasticleukemia, through cis regulation, thereby affecting the expression of the NOTCHsignaling pathway.CONCLUSIONNALT1 is overexpressed and promotes invasion and metastasis of GC. Themechanism may be related to regulation of NOTCH1 by NALT1 and its effect onNOTCH signaling pathway expression.展开更多
本研究旨在观察鸡鼻黏膜相关淋巴组织(NALT)在不同日龄时细胞因子γ-干扰素(IFN-γ)和白细胞介素-2(IL-2)mRNA的表达水平,分析鸡NALT免疫功能的建立情况,试验以不同日龄海蓝白鸡鼻腔后部组织为研究对象,采用SYBR Green 1q RT-PCR方法,...本研究旨在观察鸡鼻黏膜相关淋巴组织(NALT)在不同日龄时细胞因子γ-干扰素(IFN-γ)和白细胞介素-2(IL-2)mRNA的表达水平,分析鸡NALT免疫功能的建立情况,试验以不同日龄海蓝白鸡鼻腔后部组织为研究对象,采用SYBR Green 1q RT-PCR方法,检测鸡在胚胎时期和出壳后初期鼻相关淋巴组织中IFN-γ和IL-2mRNA的表达水平。研究发现:NALT中于18胚龄检测到IFN-γ和IL-2mRNA,随后表达水平逐渐升高,并于21日龄时达到峰值。此外,在4日龄时2种细胞因子与CD4+细胞出现的时间相同,表明2种细胞因子由该免疫活性细胞所分泌。NALT在4日龄时开始具有一定的免疫功能,并随日龄增长逐渐增强,21日龄时达到成熟水平。展开更多
基金Supported by Liaoning S&T Project,No.20180550971 and No.20170520447CSCO-MERCK SERNO oncology research fund,No.Y-MX2016-031
文摘BACKGROUNDLong noncoding RNAs (lncRNAs) are aberrant and play critical roles in gastriccancer (GC) progression and metastasis. Searching for coexpressed lncRNAclusters or representative biomarkers related to malignant phenotypes of GC mayhelp to elucidate the mechanism of tumor development and predict the prognosisof GC.AIMTo investigate the prognostic value of NOTCH1 associated with lncRNA in T cellacute lymphoblastic leukemia 1 (NALT1) in GC and the mechanism of itsinvolvement in GC invasion and metastasis.METHODSRNA sequencing and corresponding clinical data were downloaded from TheCancer Genome Atlas database. The significance module was studied byweighted gene coexpression network analysis. A total of 336 clinical sampleswere included in the study. Gene silencing, reverse transcription polymerasechain reaction, western blotting, scrape motility assay, and Transwell migrationassay were used to assess the function of hub-lncRNAs.RESULTSAt the transcriptome level, 3339 differentially expressed lncRNAs were obtained.weighted gene coexpression network analysis was used to obtain 15 lncRNAclusters and observe their coexpression. Pearson’s correlation showed that blue module was correlated with tumor grade and survival. NALT1 was the hublncRNAof blue module and was an independent risk factor for GC prognosis.NALT1 was overexpressed in GC and its expression was closely related toinvasion and metastasis. The mechanism may involve NALT1 regulation ofNOTCH1, which is associated with lncRNA in T cell acute lymphoblasticleukemia, through cis regulation, thereby affecting the expression of the NOTCHsignaling pathway.CONCLUSIONNALT1 is overexpressed and promotes invasion and metastasis of GC. Themechanism may be related to regulation of NOTCH1 by NALT1 and its effect onNOTCH signaling pathway expression.
文摘本研究旨在观察鸡鼻黏膜相关淋巴组织(NALT)在不同日龄时细胞因子γ-干扰素(IFN-γ)和白细胞介素-2(IL-2)mRNA的表达水平,分析鸡NALT免疫功能的建立情况,试验以不同日龄海蓝白鸡鼻腔后部组织为研究对象,采用SYBR Green 1q RT-PCR方法,检测鸡在胚胎时期和出壳后初期鼻相关淋巴组织中IFN-γ和IL-2mRNA的表达水平。研究发现:NALT中于18胚龄检测到IFN-γ和IL-2mRNA,随后表达水平逐渐升高,并于21日龄时达到峰值。此外,在4日龄时2种细胞因子与CD4+细胞出现的时间相同,表明2种细胞因子由该免疫活性细胞所分泌。NALT在4日龄时开始具有一定的免疫功能,并随日龄增长逐渐增强,21日龄时达到成熟水平。
