MiR-27b suppresses epithelial-mesenchymal transition and chemoresistance in lung cancer by targeting Snail1

Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved..

HEADING AIMS: MicroRNA-27b (miR-27b) has been shown to play a role in the progression of many different forms of cancer, but its specific relevance in the context of non-small cell lung cancer (NSCLC) remains uncertain. As such, this study sought to explore the role of miR-27b in NSCLC and the mechanisms whereby it functions.

MATERIALS AND METHODS: We quantified miR-27b and target gene expression via quantitative real-time PCR (RT-qPCR).We then used functional including proliferation assays, migration assay, flow cytometry, and western blotting to explore the mechanisms whereby miR-27b functions in vitro and in vivo. We additionally confirmed miR-27b target genes via luciferase reporter assay.

KEY FINDINGS: We observed a marked decrease in miR-27b expression in NSCLC patient samples relative to paracancerous control tissues. We further found that altering miR-27b expression levels in vitro affected NSCLC tumor cell migration, proliferation, and ability to undergo epithelial-mesenchymal transition. Through the use of target prediction algorithms we identified Snail to be a miR-27b target protein that was suppressed when this miRNA was highlight expressed. Lastly, we found miR-27b expression to increase NSCLC cell sensitivity to cisplatin through its ability to target Snail.

SIGNIFICANCE: Our results clearly demonstrate that miR-27b can suppress NSCLC tumor development and progression, highlighting this miR-27b/Snail1 axis as putative target for the therapeutic treatment of NSCLC.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:254

Enthalten in:

Life sciences - 254(2020) vom: 01. Aug., Seite 117238

Sprache:

Englisch

Beteiligte Personen:

Zhang, Jun [VerfasserIn]
Hua, Xionghuai [VerfasserIn]
Qi, Na [VerfasserIn]
Han, Guangsen [VerfasserIn]
Yu, Juan [VerfasserIn]
Yu, Yongkui [VerfasserIn]
Wei, Xiufeng [VerfasserIn]
Li, Haomiao [VerfasserIn]
Chen, Xiankai [VerfasserIn]
Leng, Changsen [VerfasserIn]
Liu, Qi [VerfasserIn]
Lu, Yingmin [VerfasserIn]
Li, Yin [VerfasserIn]

Links:

Volltext

Themen:

Antineoplastic Agents
Chemoresistance
Journal Article
Lung cancer
MIRN27 microRNA, human
MiR-27b
MicroRNAs
SNAI1 protein, human
Snail Family Transcription Factors
Snail1

Anmerkungen:

Date Completed 21.07.2020

Date Revised 15.04.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.lfs.2019.117238

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM304872369