Effect of the microRNA-874-3p/cytoplasmic polyadenylation element binding protein 4 signaling axis on the malignant biological behavior of cervical cancer cells
Precision medicine in cancer and translational studies|更新时间:2026-10-26
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Effect of the microRNA-874-3p/cytoplasmic polyadenylation element binding protein 4 signaling axis on the malignant biological behavior of cervical cancer cells
Journal of Chongqing Medical UniversityVol. 51, Issue 10, Pages: 1452-1461(2026)
Fan Wenling,Qi Ziyu,Xing Jingna,et al.Effect of the microRNA-874-3p/cytoplasmic polyadenylation element binding protein 4 signaling axis on the malignant biological behavior of cervical cancer cells[J].Journal of Chongqing Medical University,2026,51(10):1452-1461.
Fan Wenling,Qi Ziyu,Xing Jingna,et al.Effect of the microRNA-874-3p/cytoplasmic polyadenylation element binding protein 4 signaling axis on the malignant biological behavior of cervical cancer cells[J].Journal of Chongqing Medical University,2026,51(10):1452-1461.DOI: 10.13406/j.cnki.cyxb.004035.
Effect of the microRNA-874-3p/cytoplasmic polyadenylation element binding protein 4 signaling axis on the malignant biological behavior of cervical cancer cells
To investigate the effect of the long non-coding RNA(lncRNA) MCF2L-AS1 on the malignant biological behavior of cervical cancer(CC) cells by regulating the microRNA-874-3p(miR-874-3p)/cytoplasmic polyadenylation element binding protein 4(CPEB4) signaling axis.
Methods
2
The qRT-PCR experiment was used to measure the mRNA expression levels of lncRNA MCF2L-AS1,miR-874-3p,and CPEB4 mRNA in normal human cervical epithelial cells H8 and CC cell lines HeLa,siha,and HCC94. Human CC HeLa cells were cultured
in vitro
and were then randomly divided into CC group(normal culture),sh-NC group,sh-lncRNA MCF2L-AS1 group,sh-lncRNA MCF2L-AS1+inhibitor-NC group,and sh-lncRNA MCF2L-AS1+miR-874-3p inhibitor group. The qRT-PCR experiment was used to measure the mRNA expression levels of lncRNA MCF2L-AS1,miR-874-3p,and CPEB4 in HeLa cells; dual-luciferase reporter assay was used to investigate the regulatory relationship between lncRNA MCF2L-AS1 and miR-874-3p and between miR-874-3p and CPEB4; plate colony formation assay was used to observe the proliferative capacity of cells; scratch assay,Transwell assay,and flow cytometry were used to measure the migration,invasion,and apoptosis abilities of cells; Western blot was used to measure the expression levels of the proteins associated with cell proliferation,migration,invasion,apoptosis,and epithelial mesenchymal transition(EMT),as well as the protein expression levels of vascular endothelial growth factor(VEGF) and CPEB4.
Results
2
Compared with H8 cells,HeLa,siha,and HCC94 cells showed significant increases in the mRNA expression levels of lncRNA MCF2L-AS1 and CPEB4(
P
<
0.05) and a significant reduction in the expression level of miR-874-3p(
P
<
0.05),among which HeLa cells showed the greatest changes and were selected as the research object. Compared with the CC group and the sh-NC group,the sh-lncRNA MCF2L-AS1 group had significantly lower mRNA and protein expression levels of lncRNA MCF2L-AS1 and CPEB4 in HeLa cells,number of clones,migration rate,number of invasive cells,and expression levels of Ki67,proliferating cell nuclear antigen(PCNA),matrix metallopeptidase 9(MMP-9),N-cadherin,B-cell lymphoma-2(Bcl-2),and VEGF(
P
<
0.05),as well as significantly higher expression level of miR-874-3p,apoptosis rate,and expression levels of E-cadherin and Bcl-2 related X gene(Bax)(
P
<
0.05). There was no significant change in the expression level of lncRNA MCF2L-AS1 in HeLa cells in the sh-lncRNA MCF2L-AS1+miR-874-3p inhibitor group,and compared with the sh-lncRNA MCF2L-AS1 group and the sh-lncRNA MCF2L-AS1+inhibitor-NC group,the sh-lncRNA MCF2L-AS1+miR-874-3p inhibitor group had significantly higher mRNA and protein expression levels of CPEB4,number of clones,migration rate,number of invasive cells,and expression levels of Ki67,PCNA,MMP-9,N-cadherin,Bcl-2,and VEGF(
P
<
0.05),as well as significantly lower expression level of miR-874-3p,apoptosis rate,and expression levels of E-cadherin and Bax(
P
<
0.05). Dual-luciferase reporter assay showed that compared with the mimic-NC group,the miR-874-3p mimic group had a significantly lower luciferase activity of HeLa.
Conclusion
2
Inhibiting the expression of lncRNA MCF2L-AS1 can significantly inhibit the malignant biological behaviors of CC cells by upregulating the expression of miR-874-3p and reducing the expression of CPEB4.
关键词
Keywords
references
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