BACKGROUND The incidence of colon cancer(CC)is currently high,and is mainly treated with chemotherapy.Oxaliplatin(L-OHP)is a commonly used drug in chemotherapy;however,long-term use can induce drug resistance and seri...BACKGROUND The incidence of colon cancer(CC)is currently high,and is mainly treated with chemotherapy.Oxaliplatin(L-OHP)is a commonly used drug in chemotherapy;however,long-term use can induce drug resistance and seriously affect the prognosis of patients.Therefore,this study investigated the mechanism of Opainteracting protein 5 antisense RNA 1(OIP5-AS1)on L-OHP resistance by determining the expression of OIP5-AS1 and micro RNA-137(miR-137)in CC cells and the effects on L-OHP resistance,with the goal of identifying new targets for the treatment of CC.AIM To study the effects of long non-coding RNA OIP5-AS1 on L-OHP resistance in CC cell lines and its regulation of miR-137.METHODS A total of 114 CC patients admitted to China-Japan Union Hospital of Jilin University were enrolled,and the expression of miR-137 and OIP5-AS1 in tumor tissues and corresponding normal tumor-adjacent tissues was determined.The influence of OIP5-AS1 and miR-137 on the biological behavior of CC cells was evaluated.Resistance to L-OHP was induced in CC cells,and their activity was determined and evaluated using cell counting kit-8.Flow cytometry was used to analyze the apoptosis rate,Western blot to determine the levels of apoptosisrelated proteins,and dual luciferase reporter assay combined with RNA-binding protein immunoprecipitation to analyze the relationship between OIP5-AS1 and miR-137.RESULTS OIP5-AS1 was up-regulated in CC tissues and cells,while miR-137 was downregulated in CC tissues and cells.OIP5-AS1 was inversely correlated with miR-137(P<0.001).Silencing OIP5-AS1 expression significantly hindered the proliferation,invasion and migration abilities of CC cells and markedly increased the apoptosis rate.Up-regulation of miR-137 expression also suppressed these abilities in CC cells and increased the apoptosis rate.Moreover,silencing OIP5-AS1 and up-regulating miR-137 expression significantly intensified growth inhibition of drug-resistant CC cells and improved the sensitivity of CC cells to LOHP.OIP5-AS1 targetedly inhibited miR-137 expression,and silencing OIP5-AS1 reversed the resistance of CC cells to L-OHP by promoting the expression of miR-137.CONCLUSION Highly expressed in CC,OIP5-AS1 can affect the biological behavior of CC cells,and can also regulate the resistance of CC cells to L-OHP by mediating miR-137 expression.展开更多
目的分析老年腔隙性脑梗死(LI)患者血清微小RNA(miR)-377、miR-137水平及临床意义。方法选择2021年2月至2022年12月哈励逊国际和平医院收治的老年LI患者248例作为LI组,另选择同期来我院体检的健康者110例作为健康组;根据美国国立卫生研...目的分析老年腔隙性脑梗死(LI)患者血清微小RNA(miR)-377、miR-137水平及临床意义。方法选择2021年2月至2022年12月哈励逊国际和平医院收治的老年LI患者248例作为LI组,另选择同期来我院体检的健康者110例作为健康组;根据美国国立卫生研究院卒中量表(NIHSS)评分将老年LI患者248例分为神经缺损组60例(≥2分)和无神经缺损组188例(<2分)。检测血清miR-377、miR-137水平;用Pearson相关性分析和Spearman相关性分析;logistic回归分析老年LI患者神经缺损影响因素;ROC曲线评估血清miR-377、miR-137水平对老年LI及神经缺损诊断的预测价值。结果LI组血清miR-377、miR-137水平低于健康组(P<0.01)。miR-377和miR-137联合评估老年LI的曲线下面积(AUC)为0.782(95%CI:0.735~0.824),高于二者单一检测(P<0.01)。神经缺损组脑动脉硬化、血红蛋白降低、肿瘤坏死因子α(TNF-α)、白细胞介素(IL)1、IL-6、IL-17、C反应蛋白(CRP)、改良的Rankin量表(mRS)评分高于无神经缺损组(P<0.05,P<0.01),血清miR-377、miR-137水平低于无神经缺损组(0.61±0.25 vs 0.89±0.28,0.61±0.24 vs 0.85±0.27,P<0.01)。血清miR-377与miR-137水平呈正相关(P<0.01);血清miR-377、miR-137水平与TNF-α、IL-6、CRP、mRS评分均呈负相关(P<0.01)。miR-377、miR-137、TNF-α、IL-6、CRP是老年LI患者神经缺损的影响因素(P<0.01)。miR-377、miR-137联合评估老年LI患者神经缺损的AUC为0.812(95%CI:0.758~0.859),高于二者单一检测(P<0.05,P<0.01)。结论血清miR-377、miR-137水平在老年LI及其神经缺损患者血清中表达较低,检测其水平具有一定临床预测价值。展开更多
文摘BACKGROUND The incidence of colon cancer(CC)is currently high,and is mainly treated with chemotherapy.Oxaliplatin(L-OHP)is a commonly used drug in chemotherapy;however,long-term use can induce drug resistance and seriously affect the prognosis of patients.Therefore,this study investigated the mechanism of Opainteracting protein 5 antisense RNA 1(OIP5-AS1)on L-OHP resistance by determining the expression of OIP5-AS1 and micro RNA-137(miR-137)in CC cells and the effects on L-OHP resistance,with the goal of identifying new targets for the treatment of CC.AIM To study the effects of long non-coding RNA OIP5-AS1 on L-OHP resistance in CC cell lines and its regulation of miR-137.METHODS A total of 114 CC patients admitted to China-Japan Union Hospital of Jilin University were enrolled,and the expression of miR-137 and OIP5-AS1 in tumor tissues and corresponding normal tumor-adjacent tissues was determined.The influence of OIP5-AS1 and miR-137 on the biological behavior of CC cells was evaluated.Resistance to L-OHP was induced in CC cells,and their activity was determined and evaluated using cell counting kit-8.Flow cytometry was used to analyze the apoptosis rate,Western blot to determine the levels of apoptosisrelated proteins,and dual luciferase reporter assay combined with RNA-binding protein immunoprecipitation to analyze the relationship between OIP5-AS1 and miR-137.RESULTS OIP5-AS1 was up-regulated in CC tissues and cells,while miR-137 was downregulated in CC tissues and cells.OIP5-AS1 was inversely correlated with miR-137(P<0.001).Silencing OIP5-AS1 expression significantly hindered the proliferation,invasion and migration abilities of CC cells and markedly increased the apoptosis rate.Up-regulation of miR-137 expression also suppressed these abilities in CC cells and increased the apoptosis rate.Moreover,silencing OIP5-AS1 and up-regulating miR-137 expression significantly intensified growth inhibition of drug-resistant CC cells and improved the sensitivity of CC cells to LOHP.OIP5-AS1 targetedly inhibited miR-137 expression,and silencing OIP5-AS1 reversed the resistance of CC cells to L-OHP by promoting the expression of miR-137.CONCLUSION Highly expressed in CC,OIP5-AS1 can affect the biological behavior of CC cells,and can also regulate the resistance of CC cells to L-OHP by mediating miR-137 expression.
文摘目的分析老年腔隙性脑梗死(LI)患者血清微小RNA(miR)-377、miR-137水平及临床意义。方法选择2021年2月至2022年12月哈励逊国际和平医院收治的老年LI患者248例作为LI组,另选择同期来我院体检的健康者110例作为健康组;根据美国国立卫生研究院卒中量表(NIHSS)评分将老年LI患者248例分为神经缺损组60例(≥2分)和无神经缺损组188例(<2分)。检测血清miR-377、miR-137水平;用Pearson相关性分析和Spearman相关性分析;logistic回归分析老年LI患者神经缺损影响因素;ROC曲线评估血清miR-377、miR-137水平对老年LI及神经缺损诊断的预测价值。结果LI组血清miR-377、miR-137水平低于健康组(P<0.01)。miR-377和miR-137联合评估老年LI的曲线下面积(AUC)为0.782(95%CI:0.735~0.824),高于二者单一检测(P<0.01)。神经缺损组脑动脉硬化、血红蛋白降低、肿瘤坏死因子α(TNF-α)、白细胞介素(IL)1、IL-6、IL-17、C反应蛋白(CRP)、改良的Rankin量表(mRS)评分高于无神经缺损组(P<0.05,P<0.01),血清miR-377、miR-137水平低于无神经缺损组(0.61±0.25 vs 0.89±0.28,0.61±0.24 vs 0.85±0.27,P<0.01)。血清miR-377与miR-137水平呈正相关(P<0.01);血清miR-377、miR-137水平与TNF-α、IL-6、CRP、mRS评分均呈负相关(P<0.01)。miR-377、miR-137、TNF-α、IL-6、CRP是老年LI患者神经缺损的影响因素(P<0.01)。miR-377、miR-137联合评估老年LI患者神经缺损的AUC为0.812(95%CI:0.758~0.859),高于二者单一检测(P<0.05,P<0.01)。结论血清miR-377、miR-137水平在老年LI及其神经缺损患者血清中表达较低,检测其水平具有一定临床预测价值。
