STAT3-induced upregulation of lncRNA DUXAP8 functions as ceRNA for miR-577 to promote the migration and invasion in colorectal cancer through the regulation of RAB14

European Review for Medical and Pharmacological Sciences
C DuC-H Chen

Abstract

Previous reports have shown that long non-coding RNAs (lncRNAs) are involved in a series of biological processes and cancer in humans. Recently, lncRNA double homeobox A pseudogene 8 (DUXAP8) was frequently reported to be aberrantly expressed in multiple cancers and play a functional role. However, the exact expression, function, and mechanism of DUXAP8 in colorectal cancer (CRC) remain uncovered. The expression levels of DUXAP8 were detected by Reverse Transcription-Polymerase Chain Reaction (RT-PCR). The clinical influence of DUXAP8 in HCC patients was statistically analyzed. Luciferase reporter and ChIP assays were carried out for the exploration of whether STAT3 was able to bind to the promoter of DUXAP8. Lost-of-function experiments were carried out for the determination of possible cellular function in CRC cells. The modulating associations between DUXAP8 and miR-577 and RAB14 were further studied in CRC cells. In this study, we first provided evidence that DUXAP8 was overexpressed in CRC and increasing expression of DUXAP8 indicates advanced clinical progression and poor survival of CRC patients. Then, transcription factor STAT3 was demonstrated to upregulate DUXAP8 in CRC cells. Functional assays via in vitro assays rev...Continue Reading

Citations

Jun 18, 2020·Biology·Milad AshrafizadehReza Mohammadinejad
Mar 19, 2020·Frontiers in Cell and Developmental Biology·Weiyang LouPeifen Fu
Sep 26, 2020·Molecular and Cellular Biochemistry·Weimin LinJie Chen

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