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DNA vaccines, electroporation and their applications in cancer treatment

Si-Hyeong Lee1, Sayyed Nilofar Danishmalik, Jeong-Im Sin

  • 1a BK21 Plus Graduate Program; Department of Microbiology ; School of Medicine; Kangwon National University ; Chuncheon , Gangwon-do , Korea.

Human Vaccines & Immunotherapeutics
|May 19, 2015
PubMed

Insights

Electroporation DNA vaccines show promise for cancer treatment by boosting immune responses. Further strategies are needed to overcome cancer cell immune evasion and resistance for effective eradication.

Area of Science:

  • Immunology
  • Oncology
  • Biotechnology

Background:

  • DNA vaccines delivered via electroporation can induce potent antigen-specific cytotoxic T lymphocyte (CTL) responses.
  • Cancer antigens are often poorly immunogenic, necessitating enhanced strategies for effective immune induction against tumors.

Purpose of the Study:

  • To review the efficacy of electroporation-delivered DNA vaccines against cancer.
  • To discuss strategies for enhancing immune responses and overcoming cancer cell immune escape mechanisms.

Main Methods:

  • Review of existing literature on electroporation DNA vaccines for cancer.
  • Analysis of various strategies to improve vaccine immunogenicity, including DNA manipulation and immune stimulatory molecules.
  • Examination of cancer antigens tested and tumor cell escape mechanisms.

Main Results:

  • Electroporation enhances DNA vaccine delivery and immunogenicity, leading to robust CTL responses.
  • Multiple strategies exist to boost anti-cancer immune responses, including prime-boost immunization and xenogeneic antigen use.
  • Cancer cells can develop resistance to CTLs, representing a significant hurdle for vaccine efficacy.

Conclusions:

  • Electroporation DNA vaccines are a promising approach for cancer immunotherapy.
  • Overcoming cancer cell heterogeneity and CTL resistance is critical for successful clinical application.
  • Continued research into immune escape mechanisms and novel therapeutic strategies is essential for advancing cancer DNA vaccines.
Keywords:
AFP, α-fetoproteinAPCs, antigen presenting cellsCEA, carcinoembryonic antigenCTLA-4, cytotoxic T lymphocyte-associated antigen-4DCs, dendritic cellsDNA vaccineEP, electroporationGITR, glucocorticoid-induced tumor necrosis factor receptor family-related geneHPV, human papillomavirusHSP, heat shock proteinHSV, herpes simplex virusID, intradermalIM, intramuscularMAGE, melanoma-associated antigenMART, melanoma antigen recognized by T cellsPAP, prostatic acid phosphatasePD, programmed deathPRAME, preferentially expressed antigen in melanomaPSA, prostate-specific antigenPSMA, prostate-specific membrane antigenWT1, Wilm's tumoranti-tumor immunitycancerhTERT, human telomerase reverse transcriptasetumor immune evasion

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