Cited by 38Immunotherapy and Immune Responsesvaccines and immunoinformatics approachesCancer Immunotherapy and Biomarkers

Immunoprevention of KRAS-driven lung adenocarcinoma by a multipeptide vaccine

Open access
Pan, Jing, Zhang, Qi, Sei, Shizuko, Shoemaker, Robert H., Lubet, Ronald A., Wang, Yian, You, Ming·2017·Oncotarget

Abstract

// Jing Pan 1, * , Qi Zhang 1, * , Shizuko Sei 2 , Robert H. Shoemaker 2 , Ronald A. Lubet 2 , Yian Wang 1 and Ming You 1 1 Cancer Center and Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA 2 Chemopreventive Agent Development Research Group, Division of Cancer Prevention, National Cancer Institute, Bethesda, MD, USA * These authors have contributed equally to this work Correspondence to: Ming You, email: myou@mcw.edu Keywords: immunoprevention, KRAS, lung adenocarcinoma, peptide vaccine, MHC class II Received: December 06, 2016 Accepted: March 01, 2017 Published: August 01, 2017 ABSTRACT Lung cancer remains the leading cause of cancer death worldwide. Mutations in KRAS are detected in up to 30% of lung cancer cases. No effective therapies specifically targeting mutant KRAS have been developed. Vaccination against KRAS mutants is one of the venues of active exploration. The present study evaluated both immunogenicity and antitumor efficacy of a newly formulated multipeptide vaccine targeting multiple epitopes of the KRAS molecule. The formulated vaccine contained top four peptides, which elicited the strongest immunologic response and showed 100% sequence homology between human and mouse. The multipeptide KRAS vaccine was tested in an inducible CCSP-TetO-KRAS G12D mouse model, where the vaccine was administered prior to activating the mutant KRAS protein. The KRAS peptide vaccine exhibited striking efficacy, reducing tumor number and tumor burden by >80% when compared with adjuvant alone. Splenocytes collected from vaccinated animals showed a robust immunologic response to the immunizing peptides. Furthermore, in vitro stimulation of these splenocytes by the vaccinated peptides resulted in the secretion of cytokines indicative of Th1 responses but with minimal secretion of Th2-related cytokines. The multipeptide KRAS vaccine was immunogenic and efficacious in the primary prevention of KRAS-induced lung cancer, indicating that the approach potentially can be used to prevent other KRAS-driven cancers, either alone or in combination with other modalities.

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Crossref · 10.18632/oncotarget.19831

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  • These vaccines are designed to induce antigen-presenting cells to display mutant KRAS, stimulating attacks by cytotoxic T-cells against cancer cells expressing mutant KRAS neoantigen.

    “These vaccines are designed to induce antigen-presenting cells to display mutant KRAS, stimulating attacks by cytotoxic T-cells against cancer cells expressing mutant KRAS neoantigen [78,79,80].”

    From KRAS: Biology, Inhibition, and Mechanisms of Inhibitor Resistance (2024) · cites this paper as [80]

    The Discussion says that mutant RAS peptides or antigen-presenting cells loaded with them generated mutant-specific T-cell responses in earlier studies. But this paper’s vaccine was designed around MHC class II peptides and predominantly stimulated CD4 Th1 responses; the Results found no increase in CD8 tumor-infiltrating cells. It therefore does not establish the claimed cytotoxic T-cell attack as the mechanism of this vaccine. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Vaccination can train the immune system to attack cells expressing mutant KRAS.

    “Vaccination can train the immune system to attack cells expressing mutant KRAS.”

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Research works printed but not linked: 5

  1. [13]Shahda S O'Neil B GI-4000 in KRAS mutant cancers Expert Opin Investig Drugs 2014 23 273 278 24372276
  2. [23]Cox AD Fesik SW Kimmelman AC Luo J Der CJ Drugging the undruggable RAS: Mission Possible? Nat Rev Drug Discov 2014 13 828 851 25323927 PMC4355017
  3. [24]Ahrendt SA Decker PA Alawi EA Zhu Yr YR Sanchez-Cespedes M Yang SC Haasler GB Kajdacsy-Balla A Demeure MJ Sidransky D Cigarette smoking is strongly associated with mutation of the K-ras gene in patients with primary adenocarcinoma of the lung Cancer 2001 92 1525 1530 11745231
  4. [28]Gjertsen MK Bakka A Breivik J Saeterdal I Gedde-Dahl T 3rd Stokke KT Solheim BG Egge TS Soreide O Thorsby E Gaudernack G Ex vivo ras peptide vaccination in patients with advanced pancreatic cancer: results of a phase I/II study Int J Cancer 1996 65 450 453 8621226
  5. [29]Gjertsen MK Bjorheim J Saeterdal I Myklebust J Gaudernack G Cytotoxic CD4+ and CD8+ T lymphocytes, generated by mutant p21-ras (12Val) peptide vaccination of a patient, recognize 12Val-dependent nested epitopes present within the vaccine peptide and kill autologous tumour cells carrying this mutation Int J Cancer 1997 72 784 790 9311595

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Authors
Pan, J., Zhang, Q., Sei, S., Shoemaker, R. H., Lubet, R. A., Wang, Y., & You, M.
Affiliations
  • Medical College of Wisconsin (US)
  • National Cancer Institute (US)
Corresponding author
  • Pan, Jing
  • Zhang, Qi
Venue
Oncotarget
Published
2017-08-01
Volume
8
Issue
47
Pages
82689-82699
ISSN
1949-2553 (ISSN-L)
OpenAlex
W2742077100
Cited by
38
References
37
Citations by year
2026: 4 · 2025: 7 · 2024: 5 · 2023: 7 · 2022: 2 · 2021: 6 · 2020: 4 · 2019: 2 · 2018: 1
FWCI
0.87
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (N01CN2015000037)
  • National Cancer Institute (R01CA223804)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
KRAS, lung adenocarcinoma, multipeptide vaccine, cancer immunoprevention, KRAS G12D, MHC class II, epitope mapping, Th1 response, tumor burden reduction

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