Evidence map›Paper›PMID 28423513›Full record

ArticleOncotarget2017

miR-503-5p confers drug resistance by targeting PUMA in colorectal carcinoma.

Ke Xu, Guo Chen, Yanyan Qiu, Zeting Yuan, Hongchang Li, Xia Yuan, Jian Sun, Jianhua Xu, Xin Liang, Peihao Yin

Abstract read
In one paragraph

Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. miRNA-503 inhibition exerts anticancer effects and reduces tumor growth in mesothelioma.Journal of experimental & clinical cancer research : CR · 2025
    Article
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  14. Observational
  15. Article
  16. MicroRNA-Based Therapeutics for Drug-Resistant Colorectal Cancer.Pharmaceuticals (Basel, Switzerland) · 2021
    Review
  17. Article
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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

10 authors.

Ke XuCentral Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China.
Guo ChenDepartment of Radiation Oncology, School of Medicine and Winship Cancer Institute of Emory University, Atlanta, Georgia 30322, USA.
Yanyan QiuCentral Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China.
Zeting YuanCentral Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China.
Hongchang LiDepartment of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China State.
Xia YuanDepartment of Pharmacy, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China.
Jian SunCentral Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, PR China.
Jianhua XuInterventional Cancer Institute of Chinese Integrative Medicine, Shanghai University of Traditional Medicine, Shanghai 200062, PR China.
Xin LiangState Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
Peihao YinInterventional Cancer Institute of Chinese Integrative Medicine, Shanghai University of Traditional Medicine, Shanghai 200062, PR China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The development of multidrug-resistance (MDR) is a major contributor to death in colorectal carcinoma (CRC). Here, we investigated the possible role of microRNA (miR)-503-5p in drug resistant CRC cells. Unbiased microRNA array screening revealed that miR-503-5p is up-regulated in two oxaliplatin (OXA)-resistant CRC cell lines. Overexpression of miR-503-5p conferred resistance to OXA-induced apoptosis and inhibition of tumor growth in vitro and in vivo through down-regulation of PUMA expression. miR-503-5p knockdown sensitized chemoresistant CRC cells to OXA. Our studies indicated that p53 suppresses miR-503-5p expression and that deletion of p53 upregulates miR-503-5p expression. Inhibition of miR-503-5p in p53 null cells increased their sensitivity to OXA treatment. Importantly, analysis of patient samples showed that expression of miR-503-5p negatively correlates with PUMA in CRC. These results indicate that a p53/miR-503-5p/PUMA signaling axis regulates the CRC response to chemotherapy, and suggest that miR-503-5p plays an important role in the development of MDR in CRC by modulating PUMA expression.

Indexed as

AdultAgedAnimalsApoptosis Regulatory ProteinsBlotting, WesternColorectal NeoplasmsDrug Resistance, MultipleDrug Resistance, NeoplasmFemaleGene Expression Regulation, NeoplasticHCT116 CellsHeterograftsHT29 CellsHumansMaleMiceApoptosis Regulatory ProteinsBBC3 protein, humanMicroRNAsMIRN503 microRNA, humanProto-Oncogene Proteinscolorectal carcinomamiR-503-5pmultidrug-resistancep53PUMA

Identifiers

PMID28423513
PMCPMC5400618

What OpenQuestion holds

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Registered trials

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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.