Evidence map›Paper›PMID 40150910›Full record

ArticleJournal of gynecologic oncology2025

FOLR1 as a therapeutic target in platinum-resistant ovarian carcinoma: unique expression patterns across ovarian carcinoma histotypes and molecular subtypes of low-grade serous carcinoma.

Yuen Yee Leung, Marta Llaurado-Fernandez, Anna Cameron, Annalyn Da-Anoy, Linda C Cook, Joshua Hoenisch, Chanel Ghesquiere, Stephanie Gaillard, Josie Schmid, Amy Dawson and 7 more

Abstract read
In one paragraph

Article in Journal of gynecologic oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. 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

17 authors.

Yuen Yee Leung *Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0009-0003-9958-5714
Marta Llaurado-Fernandez *Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-9589-2456
Anna CameronDepartment of Obstetrics and Gynecology, University of Calgary, Calgary, AB, Canada.ORCID 0000-0003-1255-5807
Annalyn Da-AnoyDepartment of Pathology, University of Calgary, Calgary, AB, Canada.ORCID 0009-0008-6852-2207
Linda C CookDepartment of Colorado School of Public Health (CSPH)-Epidemiology, University of Colorado-Anschutz, Aurora, CO, USA.ORCID 0000-0001-8641-0710
Joshua HoenischDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-9096-051X
Chanel GhesquiereDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0001-7413-2346
Stephanie GaillardDepartment of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.ORCID 0000-0002-2174-3693
Josie SchmidPrince George Surgery Centre, University Hospital of Northern British Columbia, Prince George, BC, Canada.ORCID 0009-0003-3412-3041
Amy DawsonDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-5207-7988
Madison BittnerDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0001-6530-4361
Hannah KimDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0001-7138-6623
Nelson K Y WongDepartments of Clinical Research and Experimental Therapeutics, BC Cancer Research Institute, Vancouver, BC, Canada.ORCID 0000-0002-7003-6020
Gurdial DhillionDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0009-0007-4227-2302
Anna V TinkerDepartment of Medical Oncology, BC Cancer, Vancouver, BC, Canada.ORCID 0000-0002-1190-7746
Mark S CareyDepartment of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-0473-6993
Martin KöbelDepartment of Pathology, University of Calgary, Calgary, AB, Canada. mkoebel@ucalgary.ca.ORCID 0000-0002-6615-2037

Funding

WOMEN'S CANCERS RESEARCH PROGRAMP30CA118100 · NCI · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Yolanda Sanchez · 2005 to 2026
$57.1M
BC Cancer FoundationCRSCure our Ovarian CancerGynecologic Cancer Initiative at the University of British ColumbiaJDCFManagement Office at APL NASA RS21-608Management Office at APL NASA RS21-609NCI NIH HHS P30 CA118100OCCVGH and UBC Hospital Foundation
6 · The paper itself

Abstract

objectiveWith the development of novel antibody-drug conjugates (ADCs), folate receptor alpha (FOLR1) is a promising therapeutic target for the treatment of platinum-resistant tubo-ovarian carcinomas. The main aims of this study were to assess FOLR1 protein expression in a large cohort of ovarian carcinoma histotypes. To inform future clinical trial design we identified molecular correlates of FOLR1 expression in low-grade serous carcinoma (LGSC).

methodsOne thousand five hundred forty-seven ovarian carcinoma samples from 5 different Canadian cohorts were successfully evaluated by immunohistochemistry for FOLR1 expression using the PS2+ system. Statistical analyses with clinicopathological parameters, LGSC molecular subtypes, and overall survival (OS) were performed.

resultsHigh FOLR1 expression was detected in 44% of high-grade serous carcinomas, and in 30% LGSC, 8% clear cell, 6% endometrioid, and 0% mucinous and/or mesonephric-type adenocarcinomas. In 160 LGSC cases, FOLR1 expression was more frequent in cases with normal MAPK pathway status (37% MAPK wild type vs. 14% canonical MAPK pathway mutations; p=0.002), low progesterone receptor (PR) expression (41%) vs. 23% (Allred score >2; p

conclusionA significant proportion of LGSC express high FOLR1 levels supporting the development of clinical trials to investigate ADCs targeting FOLR1 as novel agents for treating this disease. In LGSC, high FOLR1 expression was associated with fewer MAPK pathway alterations, low PR expression, and p16 loss.

Indexed as

Cystadenocarcinoma, SerousFolate Receptor 1Ovarian NeoplasmsAdultAgedAged, 80 and overDrug Resistance, NeoplasmFemaleHumansImmunohistochemistryMiddle AgedNeoplasm GradingFolate Receptor 1FOLR1 protein, humanFolate Receptor AlphaFRaLow-Grade Serous CarcinomaMirvetuximab SoravtansineMolecular SubtypesOvarian Cancer

Identifiers

PMID40150910
PMCPMC12426737

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.