Evidence map›Paper›PMID 21070600›Full record

ArticleJournal of cellular and molecular medicine2011

Down-regulated miR-331-5p and miR-27a are associated with chemotherapy resistance and relapse in leukaemia.

Dan-Dan Feng, Hua Zhang, Peng Zhang, Yu-Sheng Zheng, Xing-Ju Zhang, Bo-Wei Han, Xue-Qun Luo, Ling Xu, Hui Zhou, Liang-Hu Qu and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

107 citing papers in PubMed, 1 synthesis or guideline pooled it, 172 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. MiRNAs: main players of cancer drug resistance target ABC transporters.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Regulation of P-Glycoprotein during Oxidative Stress.Antioxidants (Basel, Switzerland) · 2024
    Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Regulation of Placental Efflux Transporters during Pregnancy Complications.Drug metabolism and disposition: the biological fate of chemicals · 2022
    Review
  20. Review

47 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Dan-Dan FengKey Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou, China.
Hua Zhang
Peng Zhang
Yu-Sheng Zheng
Xing-Ju Zhang
Bo-Wei Han
Xue-Qun Luo
Ling Xu
Hui Zhou
Liang-Hu Qu
Yue-Qin Chen
Sun Yat-sen University · CNArmy Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multidrug resistance (MDR) and disease relapse are challenging clinical problems in the treatment of leukaemia. Relapsed disease is frequently refractory to chemotherapy and exhibits multiple drug resistance. Therefore, it is important to identify the mechanism by which cancer cells develop resistance. In this study, we used microRNA (miRNA) microarray and qRT-PCR approaches to investigate the expression of miRNAs in three leukaemia cell lines with different degrees of resistance to doxorubicin (DOX) compared with their parent cell line, K562. The expression of miR-331-5p and miR-27a was inversely correlated with the expression of a drug-resistant factor, P-glycoprotein (P-gp), in leukaemia cell lines with gradually increasing resistance. The development of drug resistance is regulated by the expression of the P-gp. Transfection of the K562 and, a human promyelocytic cell line (HL) HL60 DOX-resistant cells with miR-331-5p and miR-27a, separately or in combination, resulted in the increased sensitivity of cells to DOX, suggesting that correction of altered expression of miRNAs may be used for therapeutic strategies to overcome leukaemia cell resistance. Importantly, miR-331-5p and miR-27a were also expressed at lower levels in a panel of relapse patients compared with primary patients at diagnosis, further illustrating that leukaemia relapse might be a consequence of deregulation of miR-331-5p and miR-27a.

Indexed as

Antibiotics, AntineoplasticATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1Cell Line, TumorDown-RegulationDoxorubicinDrug Resistance, NeoplasmFemaleGene Expression ProfilingHumansK562 CellsLeukemiaMaleMicroRNAsProtein BiosynthesisRecurrenceABCB1 protein, humanAntibiotics, AntineoplasticATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1DoxorubicinMicroRNAsMIRN27 microRNA, humanMIRN331 microRNA, human

Identifiers

PMID21070600
PMCPMC4394226
OpenAlexW2032436756

What OpenQuestion holds

Textmetadata
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.