The miR-383-LDHA axis regulates cell proliferation, invasion and glycolysis in hepatocellular cancer
Abstract:
Objective(s)
To explore the correlation between expression patterns and functions of miR-383 and LDHA in hepatocellular cancer (HCC).
Materials And Methods
We detected the expression of miR-383 and LDHA in 30 HCC tissues and their matched adjacent normal tissues using qRT-PCR. Then we performed MTT assay, foci formation assay, transwell migration assay, glucose uptake assay and lactate production assay to explore the function of miR-383 in cell proliferation, invasion and glycolysis in HCC cell lines. Luciferase reporter assay was used to explore whether LDHA was a target gene of miR-383. Western blot and qRT-PCR were used to further confirm LDHA was targeted by miR-383. Then the above functional experiments were repeated to see whether the function of LDHA could be inhibited by miR-383.
Results
The results of qRT-PCR showed that miR-383 was down-regulated in HCC tissues compared with their matched adjacent normal tissues. Functional experiments showed that overexpression of miR-383 significantly suppressed cell proliferation, invasion and glycolysis. Luciferase reporter assay showed LDHA was a target gene of miR-383 and expression of LDHA was inversely correlated with that of miR-383 in HCC. Besides, increased cell proliferation, invasion and glycolysis triggered by LDHA could be inhibited by overexpression of miR-383 in HCC cell lines.
Conclusion
Our study proved that miR-383 is down-regulated in HCC and acts as a tumor suppressor through targeting LDHA. Targeting the miR-383-LDHA axis might be a promising strategy in HCC treatment.
Language:
English
Published:
Iranian Journal of Basic Medical Sciences, Volume:20 Issue: 2, Feb 2017
Pages:
187 to 192
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