Journal
JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
Volume 36, Issue 6, Pages -Publisher
WILEY
DOI: 10.1002/jbt.23037
Keywords
miR-200a-3p; non-small cell lung cancer; SOX17
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Funding
- National Natural Science Foundation of China [81802651, 81671586]
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This study demonstrates that miR-200a-3p influences the proliferation and metastasis of NSCLC cells by modulating the levels of SOX17.
Lung cancer has high mortality and incidence rates in which non-small cell lung cancer (NSCLC) is the primary type of lung cancer that accounts for about 80%-85% of total patients. It has been demonstrated that microRNAs (miRNAs) are critical in the incidence and progression of tumors, while the role and inner mechanism of miR-200a-3p, one type of essential miRNAs, in NSCLC have yet to be revealed. Herein, we investigated the in vitro and vivo pro-/antiproliferative influence of miR-200a-3p on NSCLC cells and utilized bioinformatic programs to further predict the SOX17 gene as miR-200a-3p's potential target. A double luciferase reporter gene experiment was performed to confirm that miR-200a-3p interacts with the SOX17 3MODIFIER LETTER PRIME-UTR region specifically. On the basis of the results of Western blot and quantitative reverse-transcription polymerase chain reaction (qRT-PCR), miR-200a-3p impacted the posttranscriptional levels of SOX17 rather than influencing its mRNA expression. In the end, we found that overexpressed SOX17 can reverse miR-200a-3p's impact on NSCLC cell proliferation and metastasis. Therefore, this study demonstrated that miR-200a-3p influences NSCLC cell proliferation and metastasis by modulating the levels of SOX17.
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