肿瘤相关成纤维细胞上调hsa-miR-18b-5p靶向FBXL3促进前列腺癌的增殖及转移
目的 探讨受肿瘤相关成纤维细胞(CAFs)调控的hsa-miR-18b-5p在前列腺癌(PCa)中的表达水平及作用,并研究对其在PCa发生发展过程中的分子机制.方法 利用生物信息学技术分析在PCa中高表达的miRNA,构建肿瘤相关成纤维细胞并与PCa细胞系共培养,验证CAFs对PCa细胞增殖和迁移的影响及对hsa-miR-18b-5p的调控作用;RT-qPCR验证20例患者癌组织及癌旁正常组织、前列腺正常上皮增生细胞及PCa各细胞系中hsa-miR-18b-5p的表达水平;通过脂质体法将阴性对照及hsa-miR-18b-5p抑制物分别转染入PCa细胞C4-2、LNCAP中,分为NC inhib...
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| Published in | 南方医科大学学报 Vol. 44; no. 7; pp. 1284 - 1296 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
蚌埠医科大学慢性疾病免疫学基础与临床安徽省重点实验室,安徽 蚌埠 233030%蚌埠医科大学第一附属医院泌尿外科,安徽 蚌埠 233004
2024
蚌埠医科大学第一附属医院泌尿外科,安徽 蚌埠 233004 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1673-4254 |
| DOI | 10.12122/j.issn.1673-4254.2024.07.08 |
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| Abstract | 目的 探讨受肿瘤相关成纤维细胞(CAFs)调控的hsa-miR-18b-5p在前列腺癌(PCa)中的表达水平及作用,并研究对其在PCa发生发展过程中的分子机制.方法 利用生物信息学技术分析在PCa中高表达的miRNA,构建肿瘤相关成纤维细胞并与PCa细胞系共培养,验证CAFs对PCa细胞增殖和迁移的影响及对hsa-miR-18b-5p的调控作用;RT-qPCR验证20例患者癌组织及癌旁正常组织、前列腺正常上皮增生细胞及PCa各细胞系中hsa-miR-18b-5p的表达水平;通过脂质体法将阴性对照及hsa-miR-18b-5p抑制物分别转染入PCa细胞C4-2、LNCAP中,分为NC inhibitor组和hsa-miR-18b-5p inhibitor组;采用细胞集落形成、CCK-8实验、划痕愈合、Transwell、IC50实验、流式细胞术分别检测C4-2、LNCAP细胞增殖、迁移、侵袭、耐药能力、凋亡和周期;建立PCa裸鼠移植瘤模型,定期测量移植瘤的质量和体积,Kaplan-Meier生存曲线分析裸鼠生存情况;利用靶基因预测分析网站(Targetscan、Mirtarbase、miRDB、miRDIP)预测has-miR-18b-5p的靶基因,并通过双荧光素酶报告基因分析验证hsa-miR-18b-5p与靶基因的靶向关系,RT-qPCR、Western blotting检测各组细胞靶基因的表达水平.结果 生物信息学分析结果显示,在PCa中高表达的miRNA有17个,结合差异表达程度以及相关文献筛选出拟研究的基因:miR-148a、miR-17、miR-18b-5p、miR-770、miR-297-3p.CAFs与PCa细胞系共培养后hsa-miR-18b-5p的表达水平升高(P<0.01),且促进PCa细胞的增殖与迁移(P<0.01),敲除has-miR-18b-5p可抵消CAFs对PCa细胞增殖及迁移的影响,确定has-miR-18b-5p为研究基因.与正常前列腺上皮细胞或肿瘤旁组织相比,PCa细胞或肿瘤组织中hsa-miR-18b-5p的表达升高(P<0.05);敲除hsa-miR-18b-5p可抑制C4-2、LNCAP细胞的增殖、迁移、侵袭以及耐药(P<0.05);敲除hsa-miR-18b-5p可抑制裸鼠移植瘤质量和体积的增长,增加裸鼠的生存时间(P<0.05).靶基因预测分析网站显示,FBXL3是h |
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| AbstractList | 目的 探讨受肿瘤相关成纤维细胞(CAFs)调控的hsa-miR-18b-5p在前列腺癌(PCa)中的表达水平及作用,并研究对其在PCa发生发展过程中的分子机制.方法 利用生物信息学技术分析在PCa中高表达的miRNA,构建肿瘤相关成纤维细胞并与PCa细胞系共培养,验证CAFs对PCa细胞增殖和迁移的影响及对hsa-miR-18b-5p的调控作用;RT-qPCR验证20例患者癌组织及癌旁正常组织、前列腺正常上皮增生细胞及PCa各细胞系中hsa-miR-18b-5p的表达水平;通过脂质体法将阴性对照及hsa-miR-18b-5p抑制物分别转染入PCa细胞C4-2、LNCAP中,分为NC inhibitor组和hsa-miR-18b-5p inhibitor组;采用细胞集落形成、CCK-8实验、划痕愈合、Transwell、IC50实验、流式细胞术分别检测C4-2、LNCAP细胞增殖、迁移、侵袭、耐药能力、凋亡和周期;建立PCa裸鼠移植瘤模型,定期测量移植瘤的质量和体积,Kaplan-Meier生存曲线分析裸鼠生存情况;利用靶基因预测分析网站(Targetscan、Mirtarbase、miRDB、miRDIP)预测has-miR-18b-5p的靶基因,并通过双荧光素酶报告基因分析验证hsa-miR-18b-5p与靶基因的靶向关系,RT-qPCR、Western blotting检测各组细胞靶基因的表达水平.结果 生物信息学分析结果显示,在PCa中高表达的miRNA有17个,结合差异表达程度以及相关文献筛选出拟研究的基因:miR-148a、miR-17、miR-18b-5p、miR-770、miR-297-3p.CAFs与PCa细胞系共培养后hsa-miR-18b-5p的表达水平升高(P<0.01),且促进PCa细胞的增殖与迁移(P<0.01),敲除has-miR-18b-5p可抵消CAFs对PCa细胞增殖及迁移的影响,确定has-miR-18b-5p为研究基因.与正常前列腺上皮细胞或肿瘤旁组织相比,PCa细胞或肿瘤组织中hsa-miR-18b-5p的表达升高(P<0.05);敲除hsa-miR-18b-5p可抑制C4-2、LNCAP细胞的增殖、迁移、侵袭以及耐药(P<0.05);敲除hsa-miR-18b-5p可抑制裸鼠移植瘤质量和体积的增长,增加裸鼠的生存时间(P<0.05).靶基因预测分析网站显示,FBXL3是h |
| Abstract_FL | Objective To explore the mechanism of tumor-associated fibroblasts(CAFs)for regulating proliferation and migration of prostate cancer(PCa)cells.Methods We conducted a bioinformatics analysis to identify miRNAs with high expression in PCa.The proliferation,migration and hsa-miR-18b-5p expression levels were observed in PCa cells co-cultured with CAFs.We further examined hsa-miR-18b-5p expression level in 20 pairs of PCa and adjacent tissue samples and in different PCa cell lines and normal epithelial cells using RT-qPCR.In PCa cell lines C4-2 and LNCAPNC,the effects of transfection with a hsa-miR-18b-5p inhibitor on cell proliferation,migration,invasion,drug resistance,apoptosis and cell cycle were evaluated,and the effects of has-miR-18b-5p knockdown on C4-2 cell xenograft growth and mouse survival were observed in nude mice.Dual luciferase reporter gene assay was used to validate the targeting relationship between hsa-miR-18b-5p and its target genes,whose expressions were detected in PCa cells using RT-qPCR and Western blotting.Results The expression of hsa-miR-18b-5p was significantly increased in the co-culture of CAFs and PCa cell lines,which exhibited significantly enhanced proliferation and migration abilities.Transfection with has-miR-18b-5p inhibitor strongly attenuated the effect of CAFs for promoting proliferation and migration of PCa cells,and in C4-2 and LNCAP cells cultured alone,inhibition of hsa-miR-18b-5p obviously suppressed cell proliferation,migration,invasion,and drug resistance.In the tumor-bearing mice,hsa-miR-18b-5p knockdown in the transplanted cells significantly inhibited xenograft growth and increased the survival time of the mice.Target gene prediction suggested that FBXL3 was a potential target of hsa-miR-18b-5p,and dual luciferase reporter gene confirmed a binding site between them.In C4-2 and LNCAP cells,hsa-miR-18b-5p knockdown resulted in significantly increased expression levels of FBXL3.Conclusion CAFs promotes proliferation and migration of PCa cells by up-regulating hsa-miR-18b-5p to suppress FBXL3 expression. |
| Author | 骆金光 胡昊 陈龙 陶怀祥 关翰 闻志远 |
| AuthorAffiliation | 蚌埠医科大学第一附属医院泌尿外科,安徽 蚌埠 233004;蚌埠医科大学慢性疾病免疫学基础与临床安徽省重点实验室,安徽 蚌埠 233030%蚌埠医科大学第一附属医院泌尿外科,安徽 蚌埠 233004 |
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| Author_FL | WEN Zhiyuan HU Hao CHEN Long GUAN Han TAO Huaixiang LUO Jinguang |
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| Keywords | 前列腺癌 prostate cancer hsa-miR-18b-5p 促癌 tumor-associated fibroblasts promoting cancer FBXL3 肿瘤相关成纤维细胞 |
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| Snippet | 目的 探讨受肿瘤相关成纤维细胞(CAFs)调控的hsa-miR-18b-5p在前列腺癌(PCa)中的表达水平及作用,并研究对其在PCa发生发展过程中的分子机制.方法... |
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| Title | 肿瘤相关成纤维细胞上调hsa-miR-18b-5p靶向FBXL3促进前列腺癌的增殖及转移 |
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