LncRNA GA-Binding Protein Transcription Factor Subunit Beta-1 Antisense RNA 1 Inhibits Renal Carcinoma Growth Through an MiR-1246/Phosphoenolpyruvate Carboxykinase 1 Pathway.

Abstract:

Objective:To clarify the role and mechanism of GABPB1-AS1 in renal cell carcinoma. Methods:We collected 48 pairs of tumor and adjacent normal tissues from patients with clear cell renal cell carcinoma (ccRCC). Both 786-o and caki-1 ccRCC cell lines were transfected with GA-binding protein transcription factor subunit beta-1 antisense RNA 1 (GABPB1-AS1), miR-1246, or small interfering RNA phosphoenolpyruvate carboxykinase 1 (siPCK1) vectors. RNA expression was examined by quantitative reverse transcription-PCR and protein expression by Western blot. Cell proliferation was measured by Cell Counting Kit-8 assays. Cell migration and invasion were measured by transwell assays. Targeting relationships between genes were tested by luciferase reporter gene assays. Results:Lower GABPB1-AS1 expression was found in ccRCC cells and tissues. GABPB1-AS1 expression was inversely associated with tumor size, TNM stage, and Furhman stage. High GABPB1-AS1 expression was associated with a better prognosis. GABPB1-AS1 overexpression significantly inhibited proliferation, migration, and invasion by 786-o and caki-1 cells. GABPB1-AS1 overexpression reduced tumor weights in xenograft experiments. Luciferase reporter assays showed that miR-1246 overexpression significantly inhibited the luciferase activity of 786-o and caki-1 cells transfected with wild-type (WT)-GABPB1-AS1 or WT-PCK1. Knockdown of PCK1 weakened the inhibition of proliferation, migration, and invasion induced by GABPB1-AS1 overexpression in 786-o and caki-1 cells. Conclusion:GABPB1-AS1 inhibits ccRCC growth and plays a tumor suppressor role through an miR-1246/PCK1 axis.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Gao S,Zhang F,Sun H,Yang X

doi

10.2147/OTT.S257275

subject

Has Abstract

pub_date

2020-07-12 00:00:00

pages

6827-6836

issn

1178-6930

pii

257275

journal_volume

13

pub_type

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