Evidence map›Paper›PMID 25871397›Full record

ArticleOncotarget2015

MiR-203 downregulation is responsible for chemoresistance in human glioblastoma by promoting epithelial-mesenchymal transition via SNAI2.

Hongzhan Liao, Yifeng Bai, Shengcong Qiu, Lei Zheng, Lianyan Huang, Tianzhu Liu, Xin Wang, Yanting Liu, Ningbo Xu, Xiaohui Yan and 1 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 116 citations in OpenAlex.

  1. Pooled it
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  3. Role of miRNAs in neurovascular injury and repair.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Hongzhan LiaoDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Yifeng BaiDepartment of Oncology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China.
Shengcong QiuDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Lei ZhengDepartment of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Lianyan HuangSchool of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China.
Tianzhu LiuDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Xin WangDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Yanting LiuDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Ningbo XuDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Xiaohui YanResearch Center of Clinical Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Hongbo GuoDepartment of Neurosurgery, Neurosurgery Institute of Guangdong, Key Laboratory on Brain Function Repair and Regeneration of Guangdong, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Southern Medical University · CNZhujiang Hospital · CNSichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epithelial-mesenchymal transition (EMT) has been recognized as a key element of cell migration, invasion, and drug resistance in several types of cancer. In this study, our aim was to clarify microRNAs (miRNAs)-related mechanisms underlying EMT followed by acquired resistance to chemotherapy in glioblastoma (GBM). We used multiple methods to achieve our goal including microarray analysis, qRT-PCR, western blotting analysis, loss/gain-of-function analysis, luciferase assays, drug sensitivity assays, wound-healing assay and invasion assay. We found that miR-203 expression was significantly lower in imatinib-resistant GBM cells (U251AR, U87AR) that underwent EMT than in their parental cells (U251, U87). Ectopic expression of miR-203 with miRNA mimics effectively reversed EMT in U251AR and U87AR cells, and sensitized them to chemotherapy, whereas inhibition of miR-203 in the sensitive lines with antisense oligonucleotides induced EMT and conferred chemoresistance. SNAI2 was identified as a direct target gene of miR-203. The knockdown of SNAI2 by short hairpin RNA (shRNA) inhibited EMT and drug resistance. In GBM patients, miR-203 expression was inversely related to SNAI2 expression, and those tumors with low expression of miR-203 experienced poorer clinical outcomes. Our findings indicate that re-expression of miR-203 or targeting SNAI2 might serve as potential therapeutic approaches to overcome chemotherapy resistance in GBM.

Indexed as

3' Untranslated RegionsAdultAgedAntineoplastic AgentsBrain NeoplasmsCell Line, TumorCell MovementCell ShapeDown-RegulationDrug Resistance, MultipleDrug Resistance, NeoplasmEpithelial-Mesenchymal TransitionFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticGlioblastoma3' Untranslated RegionsAntineoplastic AgentsImatinib MesylateMicroRNAsMIRN203 microRNA, humanNeoplasm ProteinsProtein Kinase InhibitorsRNA, NeoplasmRNA, Small InterferingSNAI2 protein, humanSnail Family Transcription FactorsTranscription Factorschemotherapy resistanceepithelial-mesenchymal transitionglioblastomamicroRNAsSNAI2

Identifiers

PMID25871397
PMCPMC4496192
OpenAlexW1507528762

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.