Evidence map›Paper›PMID 33328126›Full record

ArticleGynecologic oncology2021

Re-assigning the histologic identities of COV434 and TOV-112D ovarian cancer cell lines.

Anthony N Karnezis, Shary Yuting Chen, Christine Chow, Winnie Yang, William P D Hendricks, Pilar Ramos, Natalia Briones, Anne-Marie Mes-Masson, Tjalling Bosse, C Blake Gilks and 4 more

Open access · greenAbstract read
In one paragraph

Article in Gynecologic oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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  19. Characterization of the molecular mechanisms that govern anti-Müllerian hormone synthesis and activity.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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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

14 authors at 5 institutions in 3 countries.

Anthony N KarnezisDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of California, Davis Medical Center, Sacramento, CA, USA.
Shary Yuting ChenDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Molecular Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada.
Christine ChowGenetic Pathology Evaluation Centre, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada.
Winnie YangDepartment of Molecular Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada.
William P D HendricksDivision of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA.
Pilar RamosDivision of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA.
Natalia BrionesDivision of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA.
Anne-Marie Mes-MassonCentre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montreal, QC, Canada; Department of Medicine, Université de Montréal, Montreal, QC, Canada.
Tjalling BosseDepartment of Pathology, Leiden University Medical Center, Leiden, the Netherlands.
C Blake GilksDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
Jeffrey M TrentDivision of Integrated Cancer Genomics, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA.
Bernard WeissmanDepartment of Pathology and Laboratory Medicine, Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA.
David G HuntsmanDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Molecular Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada; Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada. Electronic address: dhuntsma@bccancer.bc.ca.
Yemin WangDepartment of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Molecular Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada. Electronic address: yewang@bccrc.ca.
University of British Columbia · CATranslational Genomics Research Institute · USLeiden University Medical Center · NLUNC Lineberger Comprehensive Cancer CenterUniversité de Montréal · CA

Funding

The Tumor Suppressor Role of SMARCA4 in SCCOHTR01CA195670 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HUNTSMAN, DAVID, TRENT, JEFFREY M. · 2015 to 2019
$3.7M
NCI NIH HHS R01 CA195670
6 · The paper itself

Abstract

objectiveThe development of effective cancer treatments depends on the availability of cell lines that faithfully recapitulate the cancer in question. This study definitively re-assigns the histologic identities of two ovarian cancer cell lines, COV434 (originally described as a granulosa cell tumour) and TOV-112D (originally described as grade 3 endometrioid carcinoma), both of which were recently suggested to represent small cell carcinoma of the ovary, hypercalcemic type (SCCOHT), based on their shared gene expression profiles and sensitivity to EZH2 inhibitors.

methodsFor COV434 and TOV-112D, we re-reviewed the original pathology slides and obtained clinical follow-up on the patients, when available, and performed immunohistochemistry for SMARCA4, SMARCA2 and additional diagnostic markers on the original formalin-fixed, paraffin-embedded (FFPE) clinical material, when available. For COV434, we further performed whole exome sequencing and validated SMARCA4 mutations by Sanger sequencing. We studied the growth of the cell lines at baseline and upon re-expression of SMARCA4 in vitro for both cell lines and evaluated the serum calcium levels in vivo upon injection into immunodeficient mice for COV434 cells.

resultsThe available morphological, immunohistochemical, genetic, and clinical features indicate COV434 is derived from SCCOHT, and TOV-112D is a dedifferentiated carcinoma. Transplantation of COV434 into mice leads to increased serum calcium level. Re-expression of SMARCA4 in either COV434 and TOV-112D cells suppressed their growth dramatically.

conclusionsCOV434 represents a bona fide SCCOHT cell line. TOV-112D is a dedifferentiated ovarian carcinoma cell line.

Indexed as

AnimalsCarcinoma, Ovarian EpithelialCarcinoma, Small CellCell DedifferentiationCell Line, TumorDNA HelicasesEnhancer of Zeste Homolog 2 ProteinExome SequencingFemaleGene Expression ProfilingHumansMiceNuclear ProteinsOvarian NeoplasmsTranscription FactorsXenograft Model Antitumor AssaysDNA HelicasesEnhancer of Zeste Homolog 2 ProteinEZH2 protein, humanNuclear ProteinsSMARCA2 protein, humanSMARCA4 protein, humanTranscription FactorsCOV434Dedifferentiated carcinomaGranulosa cell tumourSCCOHTSMARCA4TOV-112D

Identifiers

PMID33328126
PMCPMC10039450
OpenAlexW3112183187

What OpenQuestion holds

Textmetadata
LicenceTDM
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.