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Neoantigen Vaccines for Cancer Therapy

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Immunology and Immunotherapy".

Deadline for manuscript submissions: 30 August 2026 | Viewed by 2918

Special Issue Editor


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Guest Editor
Fukuoka General Cancer Clinic, Fukuoka 812-0018, Japan
Interests: neoantigens; vaccines; dendritic cells; priming; T cells; CTL; cancer; immunotherapy

Special Issue Information

Dear Colleagues,

Neoantigens are tumor-specific antigens that evade central immune tolerance mechanisms, making them ideal targets for cancer vaccine therapy. Within the body, the presentation of neoantigens to T cells by dendritic cells is critically important in immune priming, which activates and expands neoantigen-reactive T cells. The research into the application of neoantigens in cancer vaccines is rapidly advancing, with some vaccine types—such as mRNA-based neoantigen vaccines—already having been approved by the FDA. Beyond mRNA-based vaccines, other types of neoantigen vaccine under development include DNA-based, peptide-based, and dendritic cell-based vaccines (where the respective antigens are loaded onto dendritic cells). Among these, dendritic cell-based vaccines have undergone numerous clinical trials over the years, and their safety has been established. Vaccines where neoantigen peptides are loaded onto dendritic cells show high potential compared to traditional shared-antigen peptides.

The application of each different vaccine entails numerous practical clinical considerations beyond efficacy and adverse events, including cost, lead time, and logistical complexity.

Furthermore, adoptive immunotherapy using neoantigen-specific T cells—where T cells targeting neoantigens are activated and expanded ex vivo before being administered to patients—represents another future therapeutic option.

Therefore, for this Special Issue, we welcome research papers discussing therapeutic applications of neoantigens, such as those described above.

Dr. Takashi Morisaki
Guest Editor

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Keywords

  • neoantigens
  • vaccine
  • dendritic cells
  • cancer
  • immunotherapy
  • priming
  • CTL
  • helper T cells

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Published Papers (1 paper)

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Review

15 pages, 462 KB  
Review
Advances in Neoantigen-Based Cancer Vaccines
by An-Chih Wu, Yusuke Nakamura and Kazuma Kiyotani
Cancers 2026, 18(1), 144; https://doi.org/10.3390/cancers18010144 - 31 Dec 2025
Cited by 2 | Viewed by 2516
Abstract
Neoantigen-based immunotherapies harness somatic mutations as tumor-specific targets and represent a major advance in personalized cancer treatment. Since neoantigens are presented exclusively on cancer cells, they enable highly selective T-cell recognition with minimal off-tumor toxicity. Neoantigen vaccines are rapidly emerging as a versatile [...] Read more.
Neoantigen-based immunotherapies harness somatic mutations as tumor-specific targets and represent a major advance in personalized cancer treatment. Since neoantigens are presented exclusively on cancer cells, they enable highly selective T-cell recognition with minimal off-tumor toxicity. Neoantigen vaccines are rapidly emerging as a versatile class of personalized cancer immunotherapies designed to prime tumor-specific T cells by targeting somatic mutations unique to each patient’s tumor. Multiple types of neoantigen vaccines, using peptide, mRNA, and DNA, have shown feasibility, safety, and immunogenicity across diverse solid tumors. Emerging comparative data indicate that the vaccines using peptide-pulsed dendritic cells (DCs) elicit higher per-epitope CD8+ T cell responses than mRNA-based vaccines, likely due to more efficient class I presentation of synthetic peptides and ex vivo-loaded DCs. In contrast, mRNAs, despite their capacity of targeting multiple neoantigen peptides simultaneously, often induce CD4+-dominant responses due to immunodominance patterns during antigen processing. Recent clinical trials in melanoma, glioblastoma, pancreatic cancer, and other types of cancer have demonstrated not only robust immune activation but also encouraging relapse-free outcomes when administered in adjuvant settings. Treatment timing strongly influenced immune responsiveness; patients with early-stage disease or those vaccinated after surgical resection generally exhibit more preserved systemic immunity and greater vaccine-induced T cell expansion compared to those with advanced disease. Future progress will rely on improved neoantigen prediction, including incorporation of post-translationally modified antigenic targets and acceleration of manufacturing pipelines to ensure timely, personalized vaccine delivery. Collectively, neoantigen vaccines offer substantial promise for integration into next-generation cancer treatment strategies. Full article
(This article belongs to the Special Issue Neoantigen Vaccines for Cancer Therapy)
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