Recombinant adenoviruses application for cancer vaccines: from genetic design to clinical translation

Nada A Almarghalani1,2,3, Magdah A Ganash1, Mona G Alharbi1

  • 1Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.

Frontiers in Oncology
|July 28, 2026
PubMed

Insights

Oncolytic virotherapy uses engineered adenoviruses (HAdVs) to target and destroy cancer cells, stimulating immune responses. This review details HAdV mechanisms, genetic modifications, and clinical trials for cancer immunotherapy.

Area of Science:

  • Oncology
  • Immunotherapy
  • Virology

Background:

  • Cancer poses a significant global health challenge, with conventional treatments facing limitations in efficacy and safety.
  • Oncolytic virotherapy presents a promising immunotherapeutic strategy, employing genetically modified viruses to selectively eliminate cancer cells and activate anti-tumor immunity.
  • Adenoviruses (HAdVs) are extensively researched for oncolytic virotherapy due to their genetic modifiability for enhanced tumor specificity and immunogenicity.

Purpose of the Study:

  • To review the mechanisms of adenovirus vectors in cancer immunotherapy.
  • To detail genetic modifications aimed at improving tumor targeting, replication, and immune activation of adenoviruses.
  • To highlight clinical trials evaluating adenovirus-based cancer therapies, focusing on efficacy, safety, and future potential.

Main Methods:

  • Review of scientific literature on adenovirus-based cancer immunotherapy.
  • Analysis of genetic engineering strategies for enhancing adenovirus oncolytic properties.
  • Summarization of findings from key clinical trials involving adenovirus therapies for various cancers.

Main Results:

  • Adenovirus vectors can be genetically modified to achieve selective tumor targeting and replication.
  • These modifications enhance the induction of anti-tumor immune responses.
  • Clinical trials demonstrate the safety and potential efficacy of adenovirus-based therapies across different cancer types.

Conclusions:

  • Adenovirus vectors are a viable platform for developing novel cancer immunotherapies.
  • Further research and clinical evaluation are warranted to optimize adenovirus-based treatments for improved patient outcomes.
  • Adenovirus oncolytic virotherapy holds significant promise for future cancer treatment strategies.

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