Evidence map›Paper›PMID 27791128›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Targeted vaccination against the bevacizumab binding site on VEGF using 3D-structured peptides elicits efficient antitumor activity.

Madelon Q Wentink, Tilman M Hackeng, Sebastien P Tabruyn, Wouter C Puijk, Klaus Schwamborn, Daniele Altschuh, Rob H Meloen, Teun Schuurman, Arjan W Griffioen, Peter Timmerman

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02237638 (A Phase I Open-label Clinical Trial, Evaluating the Therapeutic Vaccine hVEGF26-104/RFASE in Patients With Advanced Solid Tumors), which is not on this map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.8field-weighted citation impact, top 9% 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.

NCT02237638 phase1completednot on this map

A Phase I Open-label Clinical Trial, Evaluating the Therapeutic Vaccine hVEGF26-104/RFASE in Patients With Advanced Solid Tumors

TypeinterventionalSponsorAmsterdam UMC, location VUmcRan2014 to 2020Enrolled30ConditionsMetastatic CancerArmshVEGF26-104/RFASE
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Emerging immunologic approaches as cancer anti-angiogenic therapies.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
  2. Embryonic reprogramming of the tumor vasculature reveals targets for cancer therapy.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Review
  5. Vaccine adjuvants for infectious disease in the clinic.Bioengineering & translational medicine · 2024
    Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Targeting Angiogenesis With Peptide Vaccines.Frontiers in immunology · 2019
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Reply to Marchiò et al.: Antitumor immune regulation by angiostatic therapy.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  19. An antivascular vaccine to boost self-immunity and strike the tumor.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 2 countries.

Madelon Q WentinkAngiogenesis Laboratory, Department of Medical Oncology, Vrije Universiteit Medical Center, 1081 HZ Amsterdam, The Netherlands.ORCID 0000-0002-2592-298X
Tilman M HackengDepartment of Biochemistry, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands.
Sebastien P TabruynAngiogenesis Laboratory, Department of Medical Oncology, Vrije Universiteit Medical Center, 1081 HZ Amsterdam, The Netherlands.
Wouter C PuijkPepscan Therapeutics B.V., 8243 RC Lelystad, The Netherlands.
Klaus SchwambornPepscan Therapeutics B.V., 8243 RC Lelystad, The Netherlands.
Daniele AltschuhEquipe labellisée Ligue 2015, UMR 7242, Université de Strasbourg, CNRS, École Supérieure de Biotechnologie de Strasbourg, 67412 Illkirch, France.
Rob H MeloenPepscan Therapeutics B.V., 8243 RC Lelystad, The Netherlands.
Teun SchuurmanAnimal Sciences Group, Wageningen University and Research, 6708 WD Wageningen, Lelystad, The Netherlands.
Arjan W GriffioenAngiogenesis Laboratory, Department of Medical Oncology, Vrije Universiteit Medical Center, 1081 HZ Amsterdam, The Netherlands; p.timmerman@pepscan.com aw.griffioen@vumc.nl.
Peter TimmermanPepscan Therapeutics B.V., 8243 RC Lelystad, The Netherlands; p.timmerman@pepscan.com aw.griffioen@vumc.nl.
Pepscan (Netherlands) · NLVrije Universiteit Amsterdam · NLCentre National de la Recherche Scientifique · FRMaastricht University · NLWageningen University & Research · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Therapeutic targeting of the VEGF signaling axis by the VEGF-neutralizing monoclonal antibody bevacizumab has clearly demonstrated clinical benefit in cancer patients. To improve this strategy using a polyclonal approach, we developed a vaccine targeting VEGF using 3D-structured peptides that mimic the bevacizumab binding site. An in-depth study on peptide optimization showed that the antigen's 3D structure is essential to achieve neutralizing antibody responses. Peptide 1 adopts a clear secondary, native-like structure, including the typical cysteine-knot fold, as evidenced by CD spectroscopy. Binding and competition studies with bevacizumab in ELISA and surface plasmon resonance analysis revealed that peptide 1 represents the complete bevacizumab binding site, including the hairpin loop (β5-turn-β6) and the structure-supporting β2-α2-β3 loop. Vaccination with peptide 1 elicited high titers of cross-reactive antibodies to VEGF, with potent neutralizing activity. Moreover, vaccination-induced antisera displayed strong angiostatic and tumor-growth-inhibiting properties in a preclinical mouse model for colorectal carcinoma, whereas antibodies raised with peptides exclusively encompassing the β5-turn-β6 loop (peptides 15 and 20) did not. Immunization with peptide 1 or 7 (murine analog of 1) in combination with the potent adjuvant raffinose fatty acid sulfate ester (RFASE) showed significant inhibition of tumor growth in the B16F10 murine melanoma model. Based on these data, we conclude that this vaccination technology, which is currently being investigated in a phase I clinical trial (NCT02237638), can potentially outperform currently applied anti-VEGF therapeutics.

Indexed as

Amino Acid SequenceAngiogenesis InhibitorsAnimalsAntibodies, NeutralizingBevacizumabBinding SitesCell Line, TumorColonic NeoplasmsCross ReactionsHumansMice, Inbred BALB CMice, Inbred C57BLMice, NudeMolecular Targeted TherapyPeptidesRats, WistarAngiogenesis InhibitorsAntibodies, NeutralizingBevacizumabPeptidesVascular Endothelial Growth Factor Aangiogenesisimmunizationpeptide vaccinesprotein mimicryVEGF

Identifiers

PMID27791128
PMCPMC5098619
OpenAlexW2536641658

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.