FOXC1-induced LINC01123 acts as a mediator in triple negative breast cancer

Cancer Cell International
Purong ZhangQing Lu

Abstract

MicroRNAs (miRNAs) representing a subclass of non-coding RNAs are dynamically expressed and participate in multiple pathological responses, whereas, the expression pattern or function of miRNAs has not been fully addressed in triple-negative breast cancer (TNBC). Currently we concentrate on dissecting the probable role of microRNA-663a (miR-663a) in TNBC cellular processes. qRT-PCR detected the expression of miR-663a in TNBC cells. Besides, we monitored the effects of miR-663a on TNBC proliferation and apoptosis. On the basis of bioinformatics assistance and mechanical validation, we identified the miRNA-sponging role of LINC01123 and downstream target of miR-663a in TNBC was assessed and verified. The transcription activation of was explored via ChIP and luciferase reporter assays. In comparison to MCF-10A, we certified the downregulation of miR-663a in TNBC cell lines. Augmentation of miR-663a was anti-proliferation and pro-apoptosis in TNBC cell lines. LINC01123 protected CMIP against miR-663a suppression through acting as a sponge of miR-663a in TNBC. LINC01123 was transcriptionally induced by FOXC1. Rescue experiment proved that miR-663a suppression or CMIP (c-Maf inducing protein) enhancement could countervail LINC01123 d...Continue Reading

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Citations

May 1, 2021·Diagnostics·Mario Ollero, Dil Sahali

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Methods Mentioned

BETA
PCR
transfection
electrophoresis
Immunoprecipitation
RIP
pull-down
transfect
pull down
transfections
flow cytometry

Software Mentioned

ImagePro Plus
JASPAR
SPSS
DIANA
SAS

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