J Gynecol Oncol.  2018 Nov;29(6):e95. 10.3802/jgo.2018.29.e95.

LncRNA XLOC_006390 facilitates cervical cancer tumorigenesis and metastasis as a ceRNA against miR-331-3p and miR-338-3p

Affiliations
  • 1Department of Obstetrics and Gynecology, Affiliated Hospital of Qingdao University, Qingdao, China. drwyk@outlook.com

Abstract


OBJECTIVE
Cervical cancer is one of the most common malignant tumors. Our previous results showed that long non-coding RNA (lncRNA) XLOC_006390 plays an important role in cervical cancer. In this study, we have explored the mechanism of action of lncRNA XLOC_006390.
METHODS
LncRNA XLOC_006390 was proposed to exercise its function as a competing endogenous RNA (ceRNA), and its potential targeted miRNAs was predicted through the database LncBase Predicted v.2. Two miRNAs, miR-331-3p, and miR-338-3p, were chosen for the study. Expression of miRNAs and lncRNA in cervical cancer cells and tissues was detected by reverse transcription polymerase chain reaction. To determine the correlation, silencing of XLOC_006390, over-expression of miR-331-3p, and miR-338-3p was performed in SiHa and Caski cell lines, respectively.
RESULTS
Based on the interactive effect between miRNA and lncRNA, miR-331-3p and miR-338-3p were significantly downregulated in cervical cancer cells and tissues, and their expression levels were negatively related to that of lncRNA. Our results also showed that the expression of miR-331-3p target gene NRP2, miR-338-3p target genes PKM2, EYA2 was significantly downregulated when the XLOC_006390 was knocked down. Further, XLOC_006390 was found to facilitate cervical cancer tumorigenesis and metastasis by downregulating miR-331-3p and miR-338-3p expression.
CONCLUSION
Taken together, our study demonstrated that XLOC_006390 may serve as a ceRNA and reversely regulates the expression of miR-331-3p and miR-338-3p, thus facilitating cervical cancer tumorigenesis and metastasis.

Keyword

Cervical Cancer; Metastasis; Long Non-Coding RNA; microRNAs

MeSH Terms

Carcinogenesis*
Cell Line
MicroRNAs
Neoplasm Metastasis*
Polymerase Chain Reaction
Reverse Transcription
RNA
RNA, Long Noncoding*
Uterine Cervical Neoplasms*
MicroRNAs
RNA
RNA, Long Noncoding
Full Text Links
  • JGO
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
    DB Error: unknown error