Yuan Chen1, Yiting Geng2, Junchao Huang1, Dan Xi1, Guoping Xu3, Wendong Gu4, Yingjie Shao5. 1. Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, China. 2. Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, China. 3. Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, China. xuguoping1652@czfph.com. 4. Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, China. guwendong1415@czfph.com. 5. Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Changzhou, 213003, China. shaoyingjie@suda.edu.cn.
Abstract
BACKGROUND: CircRNAs play crucial roles in multiple tumours. However, the functions of most circRNAs in cervical cancer remain unclear. METHODS: This study collected GSE113696 data from the GEO database to search for differentially expressed circRNAs in cervical cancer. Quantitative reverse transcription PCR was used to detect the expression level of circNEIL3 in cervical cancer cells and tissues. Then, functional experiments in vitro and in vivo were performed to evaluate the effects of circNEIL3 in cervical cancer. RESULTS: CircNEIL3 was highly expressed in cervical cancer. In vivo and in vitro experiments verified that circNEIL3 enhanced the proliferation capacity of cervical cancer cells. RNA immunoprecipitation, luciferase reporter assay, pull-down assay, and fluorescent in situ hybridization confirmed the interaction between circNEIL3 and miR-137 in cervical cancer. A luciferase reporter assay showed that circNEIL3 adsorbed miR-137 and upregulated KLF12 to regulate the proliferation of cervical cancer cells. CONCLUSIONS: CircNEIL3 is an oncogene in cervical cancer and might serve as a ceRNA that competitively binds to miR-137, thereby indirectly upregulating the expression of KLF12 and promoting the proliferation of cervical cancer cells.
BACKGROUND: CircRNAs play crucial roles in multiple tumours. However, the functions of most circRNAs in cervical cancer remain unclear. METHODS: This study collected GSE113696 data from the GEO database to search for differentially expressed circRNAs in cervical cancer. Quantitative reverse transcription PCR was used to detect the expression level of circNEIL3 in cervical cancer cells and tissues. Then, functional experiments in vitro and in vivo were performed to evaluate the effects of circNEIL3 in cervical cancer. RESULTS:CircNEIL3 was highly expressed in cervical cancer. In vivo and in vitro experiments verified that circNEIL3 enhanced the proliferation capacity of cervical cancer cells. RNA immunoprecipitation, luciferase reporter assay, pull-down assay, and fluorescent in situ hybridization confirmed the interaction between circNEIL3 and miR-137 in cervical cancer. A luciferase reporter assay showed that circNEIL3 adsorbed miR-137 and upregulated KLF12 to regulate the proliferation of cervical cancer cells. CONCLUSIONS:CircNEIL3 is an oncogene in cervical cancer and might serve as a ceRNA that competitively binds to miR-137, thereby indirectly upregulating the expression of KLF12 and promoting the proliferation of cervical cancer cells.
Authors: Angelina Huseinovic; Annelieke Jaspers; Annina P van Splunter; Hanne Sørgård; Saskia M Wilting; Dorian R A Swarts; Ida H van der Meulen; Victor W van Beusechem; Renée X de Menezes; Renske D M Steenbergen Journal: Int J Mol Sci Date: 2022-04-26 Impact factor: 6.208