Evidence map›Paper›PMID 26386726›Full record

ArticleTumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine2016

Over-expression of miR-31 or loss of KCNMA1 leads to increased cisplatin resistance in ovarian cancer cells.

Priya Samuel, Ryan Charles Pink, Daniel Paul Caley, James Michael Stevenson Currie, Susan Ann Brooks, David Raul Francisco Carter

Abstract read
PubMed Publisher
In one paragraph

Article in Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 6% 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

46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. miRNA-503 inhibition exerts anticancer effects and reduces tumor growth in mesothelioma.Journal of experimental & clinical cancer research : CR · 2025
    Article
  6. Review
  7. Review
  8. Ion Channels and Personalized Medicine in Gynecological Cancers.Pharmaceuticals (Basel, Switzerland) · 2023
    Review
  9. Review
  10. Review
  11. Ion Channel Involvement in Tumor Drug Resistance.Journal of personalized medicine · 2022
    Review
  12. Article
  13. Review
  14. KScientific reports · 2021
    Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Potassium Channels in Cancer.Handbook of experimental pharmacology · 2021
    Article
  20. Review
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

6 authors at 1 institution in 1 country.

Priya SamuelDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
Ryan Charles PinkDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
Daniel Paul CaleyDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
James Michael Stevenson CurrieDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
Susan Ann BrooksDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK.
David Raul Francisco CarterDepartment of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, OX3 0BP, UK. dcarter@brookes.ac.uk.
Oxford Brookes University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ovarian cancers have a high mortality rate; this is in part due to resistance to the platinum-based compounds used in chemotherapy. In this paper, we assess the role of microRNA-31 in the development of chemoresistance to cisplatin. We used previous data from microarray experiments to identify potential microRNAs (miRNAs) involved in chemoresistance. The functional significance of these microRNAs was tested using miRNA mimics. We used RNA-seq to identify pathways and genes de-regulated in the resistant cell line and then determined their role using RNAi. Analysis of publically available datasets reveals the potential clinical significance. Our data show that miR-31 is increased, whilst potassium channel calcium activated large conductance subfamily M alpha, member 1 (KCNMA1), a subunit of calcium-regulated big potassium (BK) channels, is reduced in resistant ovarian cells. Over-expression of miR-31 increased resistance, as did knockdown of KCNMA1 or inhibition of BK channels. This suggests that these genes directly modulate cisplatin response. Our data also suggest that miR-31 represses KCNMA1 expression. Comparing the levels of miR-31 and KCNMA1 to cisplatin resistance in the NCI60 panel or chemoresistance in cohorts of ovarian cancer tumours reveals correlations that support a role for these genes in vitro and in vivo. Here we show that miR-31 and KCNMA1 are involved in mediating cisplatin resistance in ovarian cancer. Our data gives a new insight into the potential mechanisms to therapeutically target in cisplatin resistance common to ovarian cancer.

Indexed as

Antineoplastic AgentsCell Line, TumorCisplatinDrug Resistance, NeoplasmFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsMicroRNAsOvarian NeoplasmsAntineoplastic AgentsCisplatinKCNMA1 protein, humanLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsMicroRNAsMIRN31 microRNA, humanBK channelCisplatin resistanceKCNMA1miR-31miRNAOvarian cancer

Identifiers

PMID26386726
OpenAlexW2268353236

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.