Evidence map›Paper›PMID 34541577›Full record

ArticleSkin health and disease2021

Folate hydrolase-1 (FOLH1) is a novel target for antibody-based brachytherapy in Merkel cell carcinoma.

M K Ramirez-Fort, B Meier-Schiesser, K Lachance, S S Mahase, C D Church, M J Niaz, H Liu, V Navarro, A Nikolopoulou, D V Kazakov and 11 more

Open access · goldAbstract read
In one paragraph

Article in Skin health and disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.2field-weighted citation impact, top 46% 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

6 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
  3. Affibody-based targeting agentFrontiers in medicine · 2025
    Article
  4. Article
  5. Article
  6. Skin cancer special edition.Skin health and disease · 2022
    Article
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

21 authors at 7 institutions in 6 countries.

M K Ramirez-FortDepartment of Life Sciences, BioFort®, Guaynabo, Puerto Rico, USA.ORCID 0000-0002-1918-7114
B Meier-SchiesserDepartment of Dermatology, University Hospital of Zürich, Zürich, Switzerland.
K LachanceDepartment of Dermatology, University of Washington, Seattle, Washington, USA.
S S MahaseDepartment of Radiation Oncology, Weill Cornell Medicine, New York, New York, USA.
C D ChurchDepartment of Dermatology, University of Washington, Seattle, Washington, USA.
M J NiazDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.ORCID 0000-0001-7995-2415
H LiuDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.
V NavarroDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.
A NikolopoulouDepartment of Radiology, Weill Cornell Medicine, New York, New York, USA.
D V KazakovDepartment of Dermatology, University Hospital of Zürich, Zürich, Switzerland.
E ContassotDepartment of Dermatology, University Hospital of Zürich, Zürich, Switzerland.
D P NguyenDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.
J SachSikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic.
L HadravskySikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic.
Y ShengShanghai Proton and Heavy Ion Center, Shanghai, China.
S T TagawaDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.
X WuShanghai Proton and Heavy Ion Center, Shanghai, China.
C S LangeDepartment of Life Sciences, BioFort®, Guaynabo, Puerto Rico, USA.
L E FrenchDepartment of Dermatology, Münich University Hospital, Münich, Germany.
P T NghiemDepartment of Dermatology, University of Washington, Seattle, Washington, USA.
N H BanderDepartment of Urology, Weill Cornell Medicine, New York, New York, USA.
Cornell University · USCharles University · CZUniversity of Washington · USShanghai Genon Biological Products (China) · CNSUNY Downstate Health Sciences University · USUniversity Hospital of Zurich · CHMünchen Klinik · DE

Funding

Translational Bioimaging Core Shared ResourceP30CA015704 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI Eric Collisson · 1985 to 2026
$296.4M
Understand & overcome resistance to PD-1P01CA225517 · NCI · UNIVERSITY OF WASHINGTON · PI Justin J Taylor · 2019 to 2026
$22.7M
Pathogenetic and prognostic studies for improved therapy of Merkel cell carcinomaK24CA139052 · NCI · UNIVERSITY OF WASHINGTON · PI NGHIEM, PAUL · 2009 to 2018
$1.8M
NCI NIH HHS K24 CA139052NCI NIH HHS P01 CA225517NCI NIH HHS P30 CA015704
6 · The paper itself

Abstract

backgroundsFolate Hydrolase-1 (FOLH1; PSMA) is a type II transmembrane protein, luminally expressed by solid tumour neo-vasculature. Monoclonal antibody (mAb), J591, is a vehicle for mAb-based brachytherapy in FOLH1+ cancers. Brachytherapy is a form of radiotherapy that involves placing a radioactive material a short distance from the target tissue (e.g., on the skin or internally); brachytherapy is commonly accomplished with the use of catheters, needles, metal seeds and antibody or small peptide conjugates. Herein, FOLH1 expression in primary (p) and metastatic (m) Merkel cell carcinoma (MCC) is characterized to determine its targeting potential for J591-brachytherapy. MATERIALS &

methodsParaffin sections from pMCC and mMCC were evaluated by immunohistochemistry for FOLH1. Monte Carlo simulation was performed using the physical properties of conjugated radioisotope lutetium-177. Kaplan-Meier survival curves were calculated based on patient outcome data and FOLH1 expression.

resultsEighty-one MCC tumours were evaluated. 67% (54/81) of all cases, 77% (24/31) pMCC and 60% (30/50) mMCC tumours were FOLH1+. Monte Carlo simulation showed highly localized ionizing tracks of electrons emitted from the targeted neo-vessel. 42% (34/81) of patients with FOLH1+/- MCC had available survival data f or analysis. No significant differences in our limited data set were detected based on FOLH1 status (

conclusionsWe report the first evidence of prevalent FOLH1 expression within MCC-associated neo-vessels, in 60-77% of patients in a large MCC cohort. Given this data, and the need for alternatives to immune therapies it is appropriate to explore the safety and efficacy o f FOLH1-targeted brachytherapy for MCC.

Identifiers

PMID34541577
PMCPMC8447486
OpenAlexW3107862301

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LicenceCC BY
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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.