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Trial watch: Naked and vectored DNA-based anticancer vaccines

Norma Bloy1, Aitziber Buqué1, Fernando Aranda2

  • 1Gustave Roussy Cancer Campus ; Villejuif, France ; INSERM , U1138; Paris, France ; Equipe 11 labellisée par la Ligue Nationale contre le Cancer; Center de Recherche des Cordeliers ; Paris, France.

Oncoimmunology
|July 9, 2015
PubMed

Insights

DNA anticancer vaccines aim to elicit tumor-targeting immune responses by producing tumor-associated antigens (TAAs). Combinatorial strategies are being developed to improve the limited clinical efficacy of these vaccines in cancer patients.

Area of Science:

  • Immunology
  • Oncology
  • Vaccinology

Background:

  • DNA vaccines encode tumor-associated antigens (TAAs) to stimulate anti-tumor immunity.
  • Current DNA vaccine strategies involve naked DNA or delivery via viral, bacterial, or yeast vectors.
  • The goal is to induce TAA synthesis within an immunostimulatory environment for a tumor-specific immune response.

Purpose of the Study:

  • To review recent advancements in DNA-based anticancer vaccine development.
  • To explore strategies for enhancing the clinical efficacy of DNA vaccines.
  • To discuss the potential of combinatorial regimens for cancer immunotherapy.

Main Methods:

  • Review of preclinical and clinical studies on DNA-based anticancer vaccines.
  • Analysis of strategies involving naked DNA and vectored approaches.
  • Examination of combinatorial therapeutic regimens.

Main Results:

  • Preclinical studies show encouraging results for DNA-based vaccines.
  • Clinical efficacy of DNA vaccines as standalone treatments in cancer patients is limited.
  • Ongoing research focuses on combination therapies to improve immune responses.

Conclusions:

  • DNA vaccines represent a promising approach for cancer immunotherapy.
  • Overcoming the limitations of standalone DNA vaccines requires innovative strategies, particularly combinatorial regimens.
  • Further research and clinical development are essential to realize the full therapeutic potential of DNA-based anticancer vaccines.
Keywords:
AFP, α-fetoproteinAPC, antigen-presenting cellCDR, complementarity-determining regionCEA, carcinoembryonic antigenCIN, cervical intraepithelial neoplasiaCTLA4, cytotoxic T lymphocyte protein 4DAMP, damage-associated molecular patternDC, dendritic cellFDA, Food and Drug AdministrationGM-CSF, granulocyte macrophage colony-stimulating factorGX-188EHCC, hepatocellular carcinomaHNSCC, head and neck squamous cell carcinomaHPV, human papillomavirusIL, interleukinOS, overall survivalOVA, ovalbuminPAP, prostate acid phosphataseSCGB2A2, secretoglobin, family 2A, member 2SOX2, SRY (sex determining region Y)-box 2T, brachyury homologTAA, tumor-associated antigenTLR, Toll-like receptorTRA, tumor rejection antigenTreg, regulatory T cellVGX-3100WT1, Wilms tumor 1adjuvantsdendritic cellelectroporationmucosal immunity

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