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30 October 2019 : Clinical Research

[Retracted: 25 Dec 2023] Long Noncoding RNA TP73-AS1 Targets MicroRNA-329-3p to Regulate Expression of the SMAD2 Gene in Human Cervical Cancer Tissue and Cell Lines

Mei Mei Guan1A, Qun Xian Rao1B, Miao Ling Huang1B, Li Juan Wang1C, Shao Dan Lin1C, Qing Chen1A*, Chang Hao Liu1A

DOI: 10.12659/MSM.916292

Med Sci Monit 2019; 25:8131-8141

The Editors of Medical Science Monitor wish to inform you that the above manuscript has been retracted from publication due to concerns with the credibility and originality of the study, the manuscript content, and the Figure images. Reference: Mei Mei Guan, Qun Xian Rao, Miao Ling Huang, Li Juan Wang, Shao Dan Lin, Qing Chen, Chang Hao Liu. Long Noncoding RNA TP73-AS1 Targets MicroRNA-329-3p to Regulate Expression of the SMAD2 Gene in Human Cervical Cancer Tissue and Cell Lines. Med Sci Monit, 2019; 25: 8131-8141. DOI: 10.12659/MSM.916292

Abstract

BACKGROUND: Worldwide, mortality from cervical cancer in women remains high. This study aimed to investigate the expression of long noncoding RNA (lncRNA) TP73-AS1, microRNA-329-3p (miRNA-329-3p), and the SMAD2 gene and their regulatory relationships in human cervical cancer tissue and cervical cancer cell lines.

MATERIAL AND METHODS: Cervical cancer tissue samples (n=30) and normal control cervical tissues were studied. Cell proliferation and migration were investigated in HeLa and SiHa human cervical cancer cells using the MTT assay, crystal violet staining, wound healing assay, and the transwell assay. Expression of lncRNA TP73-AS1 and the SMAD2 gene were detected using quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Enrichment of miR-329-3p was measured using the RNA immunoprecipitation assay (RIPA). Targeting relationships between TP73-AS1, miR-329-3p, and SMAD2 were identified using the dual-luciferase reporter assay. A subcutaneous xenograft model was established, tumor size was measured, and SMAD2 expression was detected using immunohistochemistry.

RESULTS: LncRNA TP73-AS1 was overexpressed in cervical cancer tissues and cells and was associated with reduced expression of miR-329-3p. Down-regulation of lncRNA TP73-AS1 inhibited cell proliferation, migration and invasion and increased miR-329-3p expression. Expression of SMAD2 down-regulated miR-329-3p and was associated with increased expression of TP73-AS1. LncRNA TP73-AS1 knockdown resulted in miR-329-3p silencing. In tumor xenografts, expression of TP73-AS1 reduced the tumor volume and down-regulated the expression levels of the SMAD2 gene.

CONCLUSIONS: LncRNA TP73-AS1 promoted proliferation of cervical cancer cell lines by targeting miR-329-3p to regulate the expression of the SMAD2 gene. A regulatory network was formed between lncRNA TP73-AS1, miR-329-3p, and SMAD2.

Keywords: Retracted Publication

Retraction note

Med Sci Monit 2023; 29:e943586     https://medscimonit.com/abstract/index/idArt/943586
 
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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750