Evidence map›Paper›PMID 37344281›Full record

ArticleClinical genitourinary cancer2023

Metastatic Bladder Cancer Expression and Subcellular Localization of Nectin-4 and Trop-2 in Variant Histology: A Rapid Autopsy Study.

Fady Ghali, Funda Vakar-Lopez, Martine P Roudier, Jose Garcia, Sonali Arora, Heather H Cheng, Michael T Schweizer, Michael C Haffner, John K Lee, Evan Y Yu and 5 more

Open access · greenAbstract read
In one paragraph

Article in Clinical genitourinary cancer, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
9.5field-weighted citation impact, top 1% 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

22 citing papers in PubMed, 30 citations in OpenAlex.

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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

15 authors at 4 institutions in 2 countries.

Fady GhaliDepartment of Urology, University of Washington School of Medicine, Seattle, WA.
Funda Vakar-LopezDepartment of Pathology, University of Washington School of Medicine, Seattle, WA.
Martine P RoudierDepartment of Urology, University of Washington School of Medicine, Seattle, WA.
Jose GarciaDepartment of Urology, University of Washington School of Medicine, Seattle, WA.
Sonali AroraDivision of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA.
Heather H ChengDivision of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Michael T SchweizerDivision of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Michael C HaffnerDivision of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
John K LeeDivision of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Evan Y YuDivision of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Petros GrivasDivision of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Bruce MontgomeryDivision of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA.
Andrew C HsiehDivision of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA; Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA.
Jonathan L WrightDepartment of Urology, University of Washington School of Medicine, Seattle, WA; Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA. Electronic address: jlwright@uw.edu.
Hung-Ming LamDepartment of Urology, University of Washington School of Medicine, Seattle, WA. Electronic address: minglam@uw.edu.
University of Washington · USUniversity of Washington Medical Center · USCape Town HVTN Immunology Laboratory / Hutchinson Centre Research Institute of South Africa · ZAFred Hutch Cancer Center · US

Funding

Hormone signaling and translation control in advanced prostate cancerR37CA230617 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI HSIEH, ANDREW CALEB · 2019 to 2025
$3.1M
Transcriptional-translational conflict in bladder epithelial homeostasis and cancerR01CA276308 · NCI · FRED HUTCHINSON CANCER CENTER · PI Andrew Caleb Hsieh · 2023 to 2026
$2.3M
NCI NIH HHS R01 CA276308NCI NIH HHS R37 CA230617
6 · The paper itself

Abstract

backgroundNectin-4 and Trop-2 are transmembrane targets of FDA-approved antibody-drug conjugates (ADC) Enfortumab-vedotin (EV) and Sacituzumab govitecan (SG), respectively, for the treatment of metastatic urothelial carcinoma (mUC). The expression and role of Nectin-4 and Trop-2 in mUC variant histology is poorly described. MATERIALS AND

methodsWe evaluate membranous and cytoplasmic protein expression, and mRNA levels of Nectin-4 and Trop-2 within matched primary and metastatic mUC samples to determine heterogeneity of ADC targets in mUC variants.

resultsPatients with mUC were consented for rapid autopsy immediately after death. Tissues from matched primary and metastatic lesions were collected. A total of 67 specimens from 20 patients were analyzed: 27 were UC, 17 plasmacytoid (PUC), 18 UC with squamous differentiation (UCSD), and 5 neuroendocrine (NE); 10 from primary and 57 from metastatic sites. All histology except NE expressed moderate-high levels of Nectin-4 and Trop-2 by both immunohistochemistry and RNAseq. Nectin-4 demonstrated prominent cytoplasmic staining in metastatic PUC and UCSD. Trop-2 demonstrated strong cytoplasmic and membrane staining in primary and metastatic tumors. Interestingly, Nectin-4 and Trop-2 expression are positively correlated at both mRNA and protein levels.

conclusionUC and non-NE variants express notable level of Nectin-4 and Trop-2 in both primary and metastatic lesions. Membrane staining of Nectin-4 and Trop-2 is present but cytoplasmic staining is a more common event in both mUC and mUC variant histology. These findings support evaluation of EV and SG in heavily treated variant histology BC and urge attention on the clinical relevance of cytoplasmic localization of ADC targets.

Indexed as

Carcinoma, Transitional CellImmunoconjugatesUrinary Bladder NeoplasmsAutopsyHumansNectinsRNA, MessengerImmunoconjugatesNectinsRNA, MessengerAntibody-drug conjugatesBladder cancerMetastasesVariant histology

Identifiers

PMID37344281
PMCPMC10674028
OpenAlexW4378190664

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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.