Evidence map›Paper›PMID 33709473›Full record

ArticleEMBO molecular medicine2021

Quantitative imaging of RAD51 expression as a marker of platinum resistance in ovarian cancer.

Michal M Hoppe, Patrick Jaynes, Joanna D Wardyn, Sai Srinivas Upadhyayula, Tuan Zea Tan, Stefanus Lie, Diana G Z Lim, Brendan N K Pang, Sherlly Lim, Joe P S Yeong and 15 more

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2021. 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
7.9field-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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Advances in Systemic Therapy for Ovarian Cancer Over the Past Decade: A Clinical and Molecular Perspective.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
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  11. Article
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  17. Review
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  19. Article
  20. Identification of RAD51 foci in cancer-associated circulating cells of patients with high-grade serous ovarian cancer: association with treatment outcomes.International journal of gynecological cancer : official journal of the International Gynecological Cancer Society · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

25 authors at 6 institutions in 5 countries.

Michal M HoppeCancer Science Institute of Singapore, National University of Singapore, Singapore.ORCID 0000-0002-0364-6080
Patrick JaynesCancer Science Institute of Singapore, National University of Singapore, Singapore.
Joanna D WardynCancer Science Institute of Singapore, National University of Singapore, Singapore.
Sai Srinivas UpadhyayulaCancer Science Institute of Singapore, National University of Singapore, Singapore.
Tuan Zea TanCancer Science Institute of Singapore, National University of Singapore, Singapore.ORCID 0000-0001-6624-1593
Stefanus LieCancer Science Institute of Singapore, National University of Singapore, Singapore.
Diana G Z LimDepartment of Pathology, National University Hospital, Singapore.
Brendan N K PangCancer Science Institute of Singapore, National University of Singapore, Singapore.
Sherlly LimCancer Science Institute of Singapore, National University of Singapore, Singapore.
Joe P S YeongCancer Science Institute of Singapore, National University of Singapore, Singapore.
Anthony KarnezisBritish Columbia Cancer Agency, Vancouver, BC, Canada.
Derek S ChiuBritish Columbia Cancer Agency, Vancouver, BC, Canada.
Samuel LeungBritish Columbia Cancer Agency, Vancouver, BC, Canada.
David G HuntsmanBritish Columbia Cancer Agency, Vancouver, BC, Canada.
Anna S SedukhinaDepartment of Pharmacogenomics, St. Marianna University, Kawasaki, Japan.
Ko SatoDepartment of Pharmacogenomics, St. Marianna University, Kawasaki, Japan.
Monique D ToppThe Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.
Clare L ScottThe Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia.
Hyungwon ChoiSaw Swee Hock School of Public Health, National University of Singapore, Singapore.ORCID 0000-0002-6687-3088
Naina R PatelDivision of Cancer, Imperial College London, London, UK.
Robert BrownDivision of Cancer, Imperial College London, London, UK.ORCID 0000-0001-7960-5755
Stan B KayeDepartment of Haematology-Oncology, National University Hospital, Singapore.
Jason J PittCancer Science Institute of Singapore, National University of Singapore, Singapore.
David S P TanCancer Science Institute of Singapore, National University of Singapore, Singapore.ORCID 0000-0001-9087-5262
Anand D JeyasekharanCancer Science Institute of Singapore, National University of Singapore, Singapore.ORCID 0000-0001-9816-6137
National University of Singapore · SGBC Cancer Agency · CAImperial College London · GBNational University Hospital · SGSt. Marianna University School of Medicine · JPWalter and Eliza Hall Institute of Medical Research · AU

Funding

Cancer Research UK
6 · The paper itself

Abstract

Early relapse after platinum chemotherapy in epithelial ovarian cancer (EOC) portends poor survival. A-priori identification of platinum resistance is therefore crucial to improve on standard first-line carboplatin-paclitaxel treatment. The DNA repair pathway homologous recombination (HR) repairs platinum-induced damage, and the HR recombinase RAD51 is overexpressed in cancer. We therefore designed a REMARK-compliant study of pre-treatment RAD51 expression in EOC, using fluorescent quantitative immunohistochemistry (qIHC) to overcome challenges in quantitation of protein expression in situ. In a discovery cohort (n = 284), RAD51-High tumours had shorter progression-free and overall survival compared to RAD51-Low cases in univariate and multivariate analyses. The association of RAD51 with relapse/survival was validated in a carboplatin monotherapy SCOTROC4 clinical trial cohort (n = 264) and was predominantly noted in HR-proficient cancers (Myriad HRDscore < 42). Interestingly, overexpression of RAD51 modified expression of immune-regulatory pathways in vitro, while RAD51-High tumours showed exclusion of cytotoxic T cells in situ. Our findings highlight RAD51 expression as a determinant of platinum resistance and suggest possible roles for therapy to overcome immune exclusion in RAD51-High EOC. The qIHC approach is generalizable to other proteins with a continuum instead of discrete/bimodal expression.

Indexed as

Ovarian NeoplasmsPlatinumCarcinoma, Ovarian EpithelialFemaleHumansNeoplasm Recurrence, LocalPaclitaxelRad51 RecombinasePaclitaxelPlatinumRAD51 protein, humanRad51 RecombinaseHRDimmune exclusionmultiplexed IHCovarian cancerRAD51

Identifiers

PMID33709473
PMCPMC8103098
OpenAlexW3134469437

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.