MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway

Abstract Background Emerging evidence suggests that microRNAs (miRNAs) play multiple roles in human cancers through regulating mRNAs and distinct pathways. This paper focused on the functions of miR-4429 in prostate cancer (PCa) progression and the molecules involved. Methods Expression of miR-4429...

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Main Authors: Jinguo Wang, Sheng Xie, Jun Liu, Tao Li, Wanrong Wang, Ziping Xie
Format: Article
Language:English
Published: BMC 2021-03-01
Series:BMC Urology
Subjects:
Online Access:https://doi.org/10.1186/s12894-021-00810-x
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author Jinguo Wang
Sheng Xie
Jun Liu
Tao Li
Wanrong Wang
Ziping Xie
author_facet Jinguo Wang
Sheng Xie
Jun Liu
Tao Li
Wanrong Wang
Ziping Xie
author_sort Jinguo Wang
collection DOAJ
description Abstract Background Emerging evidence suggests that microRNAs (miRNAs) play multiple roles in human cancers through regulating mRNAs and distinct pathways. This paper focused on the functions of miR-4429 in prostate cancer (PCa) progression and the molecules involved. Methods Expression of miR-4429 in PCa tissues and cells was determined. Upregulation of miR-4429 was introduced in PCa cells to examine its role in the malignant behaviors of cells. The putative target mRNA of miR-4429 involved in PCa progression was predicted from a bioinformatic system and validated through luciferase assays. Overexpression of distal-less homeobox 1 (DLX1) was further induced in cells to validate its implication in miR-4429-mediated events. The activity of Wnt/β-catenin pathway was determined. Results miR-4429 was poorly expressed in PCa tissues and cells. Artificial upregulation of miR-4429 significantly reduced proliferation, growth, invasion, migration and resistance to death of cancer cells and inactivated the Wnt/β-catenin pathway. DLX1 mRNA was found as a target of miR-4429. Upregulation of DLX1 restored the malignant behaviors of PCa cells which were initially suppressed by miR-4429, and it activated the Wnt/β-catenin pathway. Conclusion Our study highlights that miR-4429 inhibits the growth of PCa cells by down-regulating DLX1 and inactivating the Wnt/β-catenin pathway. This finding may offer novel insights into PCa treatment.
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spelling doaj.art-704c32e2890a4279a30fbdde65dd34282022-12-21T23:02:14ZengBMCBMC Urology1471-24902021-03-0121111010.1186/s12894-021-00810-xMicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathwayJinguo Wang0Sheng Xie1Jun Liu2Tao Li3Wanrong Wang4Ziping Xie5Department of Andrology, Renmin Hospital, Hubei University of MedicineDepartment of Andrology, Renmin Hospital, Hubei University of MedicineDepartment of Andrology, Renmin Hospital, Hubei University of MedicineDepartment of Andrology, Renmin Hospital, Hubei University of MedicineDepartment of Andrology, Renmin Hospital, Hubei University of MedicineDepartment of Andrology, Renmin Hospital, Hubei University of MedicineAbstract Background Emerging evidence suggests that microRNAs (miRNAs) play multiple roles in human cancers through regulating mRNAs and distinct pathways. This paper focused on the functions of miR-4429 in prostate cancer (PCa) progression and the molecules involved. Methods Expression of miR-4429 in PCa tissues and cells was determined. Upregulation of miR-4429 was introduced in PCa cells to examine its role in the malignant behaviors of cells. The putative target mRNA of miR-4429 involved in PCa progression was predicted from a bioinformatic system and validated through luciferase assays. Overexpression of distal-less homeobox 1 (DLX1) was further induced in cells to validate its implication in miR-4429-mediated events. The activity of Wnt/β-catenin pathway was determined. Results miR-4429 was poorly expressed in PCa tissues and cells. Artificial upregulation of miR-4429 significantly reduced proliferation, growth, invasion, migration and resistance to death of cancer cells and inactivated the Wnt/β-catenin pathway. DLX1 mRNA was found as a target of miR-4429. Upregulation of DLX1 restored the malignant behaviors of PCa cells which were initially suppressed by miR-4429, and it activated the Wnt/β-catenin pathway. Conclusion Our study highlights that miR-4429 inhibits the growth of PCa cells by down-regulating DLX1 and inactivating the Wnt/β-catenin pathway. This finding may offer novel insights into PCa treatment.https://doi.org/10.1186/s12894-021-00810-xProstate cancerMicroRNA-4429Wnt/β-catenin pathwayDLX1Biological behavior
spellingShingle Jinguo Wang
Sheng Xie
Jun Liu
Tao Li
Wanrong Wang
Ziping Xie
MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
BMC Urology
Prostate cancer
MicroRNA-4429
Wnt/β-catenin pathway
DLX1
Biological behavior
title MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
title_full MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
title_fullStr MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
title_full_unstemmed MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
title_short MicroRNA-4429 suppresses proliferation of prostate cancer cells by targeting distal-less homeobox 1 and inactivating the Wnt/β-catenin pathway
title_sort microrna 4429 suppresses proliferation of prostate cancer cells by targeting distal less homeobox 1 and inactivating the wnt β catenin pathway
topic Prostate cancer
MicroRNA-4429
Wnt/β-catenin pathway
DLX1
Biological behavior
url https://doi.org/10.1186/s12894-021-00810-x
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