Format

Send to

Choose Destination
Arch Gynecol Obstet. 2015 Nov;292(5):1083-9. doi: 10.1007/s00404-015-3713-2. Epub 2015 Apr 18.

miR-31 functions as an oncogene in cervical cancer.

Author information

1
Department of Gynecology, Renmin Hospital of Wuhan University, Zhang Zhidong Road, Wuhan, 430060, Hubei, China. zwj4949@163.com.
2
Department of Gynecology, Renmin Hospital of Wuhan University, Zhang Zhidong Road, Wuhan, 430060, Hubei, China.
3
Department of Gynecology, Renmin Hospital of Wuhan University, Zhang Zhidong Road, Wuhan, 430060, Hubei, China. zw6676@163.com.
4
Department of Gynecology, The People Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guanxi, China. huxxia@hotmail.com.

Abstract

BACKGROUND:

MicroRNAs are frequently altered in numerous cancers and are critical regulators of various diseases. miR-31 has been shown to be significantly altered in a variety of cancers.

METHODS:

In the present study, we measured the expression level of miR-31 in cervical cancer, CIN and normal cervical tissues by real-time RT (reverse transcription)-PCR. We also analyzed the correlations between the expression level of miR-31 and the clinical characteristics in cases of cervical squamous cell carcinoma. In addition, we measured the expression of miR-31 in cervical cancer cell lines, and transfected HPV16 E6 siRNA and HPV16 E7 siRNA into SiHa cells to investigate the effects on miR-31. Finally, the effects of miR-31 on cell proliferation, migration and invasion were measured in HeLa and SiHa cells that were transfected with a miR-31 mimic or a negative control.

RESULT:

We found that the expression level of miR-31 was significantly higher in cervical cancer patients than in normal individuals (P < 0.05). Aberrant expression of miR-31 was positively correlated with the lymph node metastasis (LNM), vessel invasion and HPV status (P < 0.05). Additionally, miR-31 was also overexpressed in the cervical cancer-derived HeLa and SiHa cells compared with C33A cells (P < 0.05). Moreover, a relationship was found between miR-31 expression and the HPV16 oncoproteins E6/E7. Furthermore, we found that the overexpression of miR-31 can promote cell proliferation and enhance the migration and invasion abilities of cancer cells.

CONCLUSIONS:

Our results suggested that miR-31 plays an oncogenetic role in the development and progression of cervical cancer.

KEYWORDS:

Biological function; Cervical cancer; HPV; miR-31

PMID:
25894339
DOI:
10.1007/s00404-015-3713-2
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center