Evidence map›Paper›PMID 33850024›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

An ultra-high-affinity small organic ligand of fibroblast activation protein for tumor-targeting applications.

Jacopo Millul, Gabriele Bassi, Jacqueline Mock, Abdullah Elsayed, Christian Pellegrino, Aureliano Zana, Sheila Dakhel Plaza, Lisa Nadal, Andreas Gloger, Eleonore Schmidt and 5 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
9.0field-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

71 citing papers in PubMed, 150 citations in OpenAlex.

  1. Article
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  8. FAP-targeted [European journal of nuclear medicine and molecular imaging · 2026
    Article
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  13. Comparison between [EJNMMI research · 2026
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  15. A newEJNMMI radiopharmacy and chemistry · 2026
    Article
  16. Article
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  18. Small-molecule control of CAR T cells.Nature reviews. Chemistry · 2025
    Review
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

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 3 institutions in 2 countries.

Jacopo MillulPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.ORCID 0000-0003-4288-1283
Gabriele BassiPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.
Jacqueline MockSwiss Federal Institute of Technology, Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.
Abdullah ElsayedSwiss Federal Institute of Technology, Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.
Christian PellegrinoSwiss Federal Institute of Technology, Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.
Aureliano ZanaPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.ORCID 0000-0002-6360-3904
Sheila Dakhel PlazaPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.
Lisa NadalPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.ORCID 0000-0002-8566-103X
Andreas GlogerPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.
Eleonore SchmidtPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.ORCID 0000-0002-3184-413X
Ilaria BiancofiorePhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.
Etienne J DonckelePhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.ORCID 0000-0001-9112-1753
Florent SamainPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland.
Dario NeriSwiss Federal Institute of Technology, Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland; neri@pharma.ethz.ch samuele.cazzamalli@philochem.ch.ORCID 0000-0001-5234-7370
Samuele CazzamalliPhilochem AG, R&D department, CH-8112 Otelfingen, Switzerland; neri@pharma.ethz.ch samuele.cazzamalli@philochem.ch.ORCID 0000-0003-0510-5664
Philochem (Switzerland) · CHÉcole Polytechnique Fédérale de Lausanne · CHPhilogen (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe the development of OncoFAP, an ultra-high-affinity ligand of fibroblast activation protein (FAP) for targeting applications with pan-tumoral potential. OncoFAP binds to human FAP with affinity in the subnanomolar concentration range and cross-reacts with the murine isoform of the protein. We generated various fluorescent and radiolabeled derivatives of OncoFAP in order to study biodistribution properties and tumor-targeting performance in preclinical models. Fluorescent derivatives selectively localized in FAP-positive tumors implanted in nude mice with a rapid and homogeneous penetration within the neoplastic tissue. Quantitative in vivo biodistribution studies with a lutetium-177-labeled derivative of OncoFAP revealed a preferential localization in tumors at doses of up to 1,000 nmol/kg. More than 30% of the injected dose had already accumulated in 1 g of tumor 10 min after intravenous injection and persisted for at least 3 h with excellent tumor-to-organ ratios. OncoFAP also served as a modular component for the generation of nonradioactive therapeutic products. A fluorescein conjugate mediated a potent and FAP-dependent tumor cell killing activity in combination with chimeric antigen receptor (CAR) T cells specific to fluorescein. Similarly, a conjugate of OncoFAP with the monomethyl auristatin E-based Vedotin payload was well tolerated and cured tumor-bearing mice in combination with a clinical-stage antibody-interleukin-2 fusion. Collectively, these data support the development of OncoFAP-based products for tumor-targeting applications in patients with cancer.

Indexed as

AnimalsCell Line, TumorDrug Delivery SystemsEndopeptidasesFibroblast Activation Protein AlphaFibroblastsGene ExpressionGene Expression Regulation, NeoplasticIsotope LabelingLigandsLutetiumMaleMembrane ProteinsMiceMice, NudeNeoplasmsEndopeptidasesFibroblast Activation Protein AlphaLigandsLutetiumLutetium-177Membrane ProteinsquinolineQuinolinesRadioisotopesRadiopharmaceuticalsFAPsmall molecule therapeuticstumor targeting

Identifiers

PMID33850024
PMCPMC8072232
OpenAlexW3156123897

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.