circ_100284通过miR-217/MAPK1调控食管鳞状细胞癌侵袭及其对5-FU化疗敏感性的影响
R735.1; 目的 探究环状RNA(circ_100284)作为竞争性内源RNA(ceRNA)通过调控miR-217/丝裂原活化蛋白激酶1(MAPK1)影响食管鳞状细胞癌(ESCC)细胞侵袭及其对5-氟尿嘧啶(5-FU)化疗的敏感性.方法 生物信息学分析ESCC中差异表达的circRNAs.qRT-PCR检测ESCC组织和细胞中circ_100284的表达.使用浓度逐渐增加的5-FU处理ESCC细胞KYSE450以建立5-FU耐药KYSE450细胞系(KYSE450-R),MTT实验检测KYSE450和KYSE450-R细胞的IC50.qRT-PCR检测KYSE450和KYSE450-R细胞...
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| Published in | 解放军医学杂志 Vol. 49; no. 10; pp. 1184 - 1195 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
平顶山学院第一附属医院/平顶山市第一人民医院消化内科,河南 平顶山 467000%郑州大学第一附属医院胸外科,河南 郑州 450052
28.10.2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0577-7402 |
| DOI | 10.11855/j.issn.0577-7402.0787.2024.0201 |
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| Abstract | R735.1; 目的 探究环状RNA(circ_100284)作为竞争性内源RNA(ceRNA)通过调控miR-217/丝裂原活化蛋白激酶1(MAPK1)影响食管鳞状细胞癌(ESCC)细胞侵袭及其对5-氟尿嘧啶(5-FU)化疗的敏感性.方法 生物信息学分析ESCC中差异表达的circRNAs.qRT-PCR检测ESCC组织和细胞中circ_100284的表达.使用浓度逐渐增加的5-FU处理ESCC细胞KYSE450以建立5-FU耐药KYSE450细胞系(KYSE450-R),MTT实验检测KYSE450和KYSE450-R细胞的IC50.qRT-PCR检测KYSE450和KYSE450-R细胞中circ_100284、miR-217和MAPK1 mRNA的表达,Western blotting检测MAPK1蛋白的表达.取KYSE450-R细胞,设置:(1)空白对照组(不做处理)、si-NC组(转染si-NC)、si-circ_100284组(转染si-circ_100284)、pc-Control组(转染pc-Control)、pc-circ_100284组(转染pc-circ_100284)、pc-circ_100284+mimic NC组(转染pc-circ_100284和mimic NC)与pc-circ_100284+miR-217 mimic组(转染pc-circ_100284 和miR-217 mimic),采用MTT实验检测细胞活力,Transwell实验检测细胞侵袭能力,流式细胞术检测细胞凋亡情况.(2)空白对照组(不做处理)、si-NC组(转染si-MAPK1的阴性对照)、si-MAPK1组(转染si-MAPK1)、si-MAPK1+inhibitor NC组(转染si-MAPK1和inhibitor NC)与si-MAPK1+miR-217 inhibitor组(转染si-MAPK1和miR-217 inhibitor),采用qRT-PCR和Western blotting检测MAPK1 mRNA和蛋白的表达,MTT实验检测细胞活力,Transwell实验检测细胞侵袭能力,流式细胞术检测细胞凋亡情况.将circ_100284-WT或circ_100284-MUT报告质粒、MAPK1-WT或MAPK1-MUT报告质粒分别与miR-NC或miR-217 mimic共转染KYSE450-R细胞48 |
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| AbstractList | R735.1; 目的 探究环状RNA(circ_100284)作为竞争性内源RNA(ceRNA)通过调控miR-217/丝裂原活化蛋白激酶1(MAPK1)影响食管鳞状细胞癌(ESCC)细胞侵袭及其对5-氟尿嘧啶(5-FU)化疗的敏感性.方法 生物信息学分析ESCC中差异表达的circRNAs.qRT-PCR检测ESCC组织和细胞中circ_100284的表达.使用浓度逐渐增加的5-FU处理ESCC细胞KYSE450以建立5-FU耐药KYSE450细胞系(KYSE450-R),MTT实验检测KYSE450和KYSE450-R细胞的IC50.qRT-PCR检测KYSE450和KYSE450-R细胞中circ_100284、miR-217和MAPK1 mRNA的表达,Western blotting检测MAPK1蛋白的表达.取KYSE450-R细胞,设置:(1)空白对照组(不做处理)、si-NC组(转染si-NC)、si-circ_100284组(转染si-circ_100284)、pc-Control组(转染pc-Control)、pc-circ_100284组(转染pc-circ_100284)、pc-circ_100284+mimic NC组(转染pc-circ_100284和mimic NC)与pc-circ_100284+miR-217 mimic组(转染pc-circ_100284 和miR-217 mimic),采用MTT实验检测细胞活力,Transwell实验检测细胞侵袭能力,流式细胞术检测细胞凋亡情况.(2)空白对照组(不做处理)、si-NC组(转染si-MAPK1的阴性对照)、si-MAPK1组(转染si-MAPK1)、si-MAPK1+inhibitor NC组(转染si-MAPK1和inhibitor NC)与si-MAPK1+miR-217 inhibitor组(转染si-MAPK1和miR-217 inhibitor),采用qRT-PCR和Western blotting检测MAPK1 mRNA和蛋白的表达,MTT实验检测细胞活力,Transwell实验检测细胞侵袭能力,流式细胞术检测细胞凋亡情况.将circ_100284-WT或circ_100284-MUT报告质粒、MAPK1-WT或MAPK1-MUT报告质粒分别与miR-NC或miR-217 mimic共转染KYSE450-R细胞48 |
| Abstract_FL | Objective To explore the effects of circ_100284 in affecting the invasion of esophageal squamous cell carcinoma(ESCC)cells and their sensitivity to 5-fluorouracil(5-FU)chemotherapy via regulating miR-217/mitogen-activated protein kinase 1(MAPK1)acting as a competing endogenous RNA(ceRNA).Methods The bioinformatics approach was used to analyze the differentially expressed circRNAs in ESCC.qRT-PCR was used to detect the expression of circ_100284 in ESCC tissues and cells.The 5-FU-resistant KYSE450 cell line(KYSE45-R)was established by increasing concentrations of 5-FU.The IC50 of 5-FU in KYSE450 and KYSE450-R cells was determined through MTT assay.qRT-PCR was used to detect the expression of circ_100284,miR-217,and MAPK1 mRNA in KYSE450 and KYSE450-R cells,while Western blotting detecting the protein expression of MAPK1.In the experiments with KYSE450-R cells,we set up the following groups:(1)blank group(without treatment),si-NC group(transfected with si-NC),si-circ_100284 group(transfected with si-circ_100284),pc-Control group(transfected with pc-Control),pc-circ_100284 group(transfected with pc-circ_100284),pc-circ_100284+mimic NC group(transfected with pc-circ_100284 and mimic NC),and pc-circ_100284+miR-217 mimic group(transfected with pc-circ_100284 and miR-217 mimic).These groups were subjected to MTT assay to detect cell viability,Transwell assay to detect cell invasion,and flow cytometry to detect cell apoptosis.(2)Blank group(without treatment),si-NC group(transfected with si-MAPK1 negative control),si-MAPK1 group(transfected with si-MAPK1),si-MAPK1+inhibitor NC group(transfected with si-MAPK1 and inhibitor NC),and si-MAPK1+miR-217 inhibitor group(transfected with si-MAPK1 and miR-217 inhibitor).We detected the mRNA and protein expression of MAPK1 using qRT-PCR and Western blotting.We evaluated cell viability using MTT assay,invasion with Transwell assay,and apoptosis by flow cytometry.circ_100284-WT or circ_100284-MUT reporter plasmids,as well as MAPK1-WT or MAPK1-MUT reporter plasmids,were co-transfected with miR-NC or miR-217 mimic into KYSE450-R cells for 48 h,and dual luciferase reporter assay was used to measure luciferase activity.Results The bioinformatics analysis revealed significant upregulation of circ_100284 in ESCC.Compared with adjacent normal tissues,the expression of circ_100284 in ESCC tissues is enhanced(P<0.05);compared with the HECC cells,the TE-11,ECA109 and KYSE450 ESCC cell lines showed enhanced expression of circ_100284(P<0.05).Compared with the KYSE450 cells,KYSE450-R cells demonstrated increased IC50 with enhanced expression of circ_100284 and MAPK1 but suppressed expression of miR-217(P<0.05).Compared with the si-NC group,the si-circ_100284 group demonstrated inhibited invasion and proliferation of cells with increased apoptosis(P<0.05).Compared with pc-Control group,the invasion and proliferation of cells in the pc-circ_100284 group are increased,and cell apoptosis is decreased(P<0.05).Over-expression of miR-217 reversed the malignant biological behavior of ESCC cells induced by pc-circ_100284(P<0.05).Compared with si-NC group,in the si-MAPK1 group,we observed decreased cell invasion and proliferation,and increased apoptosis(P<0.05),but miR-217 inhibitor reversed the effect of si-MAPK1 on the biological behavior of ESCC cells(P<0.05).The targeting relationship of circ_100284 and miR-217,miR-217 and MAPK1 is confirmed.Conclusion circ_100284 promotes ESCC cell invasion by regulating miR-217/MAPK1,inhibits the chemosensitivity of ESCC cells to 5-FU,and acts as a tumor-promoting factor in ESCC. |
| Author | 牛丽林 米彩锋 史艳伟 杨洋 |
| AuthorAffiliation | 平顶山学院第一附属医院/平顶山市第一人民医院消化内科,河南 平顶山 467000%郑州大学第一附属医院胸外科,河南 郑州 450052 |
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| Author_FL | Yang Yang Mi Cai-Feng Niu Li-Lin Shi Yan-Wei |
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| Author_xml | – sequence: 1 fullname: 史艳伟 – sequence: 2 fullname: 米彩锋 – sequence: 3 fullname: 牛丽林 – sequence: 4 fullname: 杨洋 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.11855/j.issn.0577-7402.0787.2024.0201 |
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| DocumentTitle_FL | circ_100284 via miR-217/MAPK1 regulates esophageal squamous cell carcinoma invasion and its effects on 5-FU chemotherapy sensitivity |
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| Keywords | circ_100284 esophageal cancer 丝裂原活化蛋白激酶1 食管癌 化疗敏感性 mitogen-activated protein kinase 1 chemosensitivity miR-217 |
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| Publisher | 平顶山学院第一附属医院/平顶山市第一人民医院消化内科,河南 平顶山 467000%郑州大学第一附属医院胸外科,河南 郑州 450052 |
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| Title | circ_100284通过miR-217/MAPK1调控食管鳞状细胞癌侵袭及其对5-FU化疗敏感性的影响 |
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