中国肿瘤生物治疗杂志2025，Vol.32Issue(10)：1010-1018,9.DOI:10.3872/j.issn.1007-385x.2025.10.002
Wnt5a通过上调miR-141-3p增强前列腺癌细胞血管生成拟态与干细胞特性
Wnt5a promotes vasculogenic mimicry and stemness in prostate cancer cells through miR-141-3p upregulation
摘要
Abstract
Objective:To investigate the effects of Wnt5a on the vasculogenic mimicry(VM)and cancer stem cell(CSC)properties of prostate cancer(PCa)cells by upregulating the expression of miR-141-3p.Methods:Human prostate epithelial cell line RWPE-1 and PCa cell lines PC-3,LNCaP,and DU145 were cultured.qPCR was employed to detect miR-141-3p expression,and Western blotting(WB)was used to measure Wnt5a protein levels.Stable Wnt5a-knockdown or miR-141-3p-knockdown LNCaP and DU145 cell lines were established respectively via plasmid transfection.VM formation ability was assessed by three-dimensional culture assay.Cell proliferation ability and drug sensitivity were measured by CCK-8 assay.Cell migration and invasion abilities were detected using wound healing and Transwell assays,respectively.The expressions of VM-related molecules and CSC markers were detected by qPCR and WB.Colony formation ability was determined by clonogenic assay.The proportion of CD133+cells was sorted and calculated by flow cytometry.The expressions of miR-141-3p and Wnt5a in CD133+and CD133-cells were detected by qPCR and WB.Stable Wnt5a-overexpressing PCa cell lines were constructed via plasmid transfection.The effects of Wnt5a and different Wnt pathway downstream inhibitors on miR-141-3p expression and promoter activity were detected by qPCR and dual-luciferase reporter assays.Expression of c-Jun was knocked down in Wnt5a-overexpressing cells using si-c-Jun transfection.The target binding relationship between c-Jun and the miR-141-3p promoter was verified by qPCR,dual-luciferase reporter assay,and chromatin immunoprecipitation assay.Results:The expressions of miR-141-3p and Wnt5a were significantly higher in PCa cells compared with those in RWPE-1 cells,with the highest relative expression in DU145 cells and the lowest in LNCaP cells(P<0.001).Downregulation of Wnt5a or miR-141-3p significantly inhibited VM formation ability and stemness of PCa cells,and significantly suppressed the proliferation,migration,invasion abilities,and enhanced the sensitivity to bicalutamide of PCa cells(P<0.05 or P<0.01 or P<0.001).Downregulation of Wnt5a significantly inhibited miR-141-3p expression and promoter transcriptional activity(P<0.01 or P<0.05),whereas upregulation of Wnt5a significantly promoted miR-141-3p expression and promoter transcriptional activity(P<0.01 or P<0.001).The promoting effect of Wnt5a on miR-141-3p expression and promoter transcriptional activity could be inhibited by a JNK/c-Jun pathway inhibitor(P>0.05).Downregulation of c-Jun significantly inhibited the promoting effect of Wnt5a on miR-141-3p expression and promoter transcriptional activity(P>0.05).c-Jun could bind to the-348 to-295 sequence of the miR-141-3p promoter.In absence of this fragment Wnt5a wouldn't promote miR-141-3p expression(P>0.05).Conclusion:The Wnt5a/JNK/c-Jun signaling pathway can upregulate miR-141-3p expression,and thereby promote VM formation in PCa cells,possibly by activating CSC properties.关键词
前列腺癌/miR-141-3p/Wnt5a/血管生成拟态/肿瘤干细胞Key words
prostate cancer(PCa)/miR-141-3p/Wnt5a/vasculogenic mimicry(VM)/cancer stem cell(CSC)分类
临床医学引用本文复制引用
刘彼得,王书恒,贾宏亮,李循,张小安,董强,李九智..Wnt5a通过上调miR-141-3p增强前列腺癌细胞血管生成拟态与干细胞特性[J].中国肿瘤生物治疗杂志,2025,32(10):1010-1018,9.基金项目
新疆维吾尔自治区自然科学基金青年基金项目(No.2024D01C289) （No.2024D01C289）
新疆维吾尔自治区人民医院院内科研项目(No.20210105,No.20200309) （No.20210105,No.20200309）
