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A Tumor Cell Membrane-Coated CD40 Ligand-Encoding Oncolytic Adenovirus Serves as a Potent Nano-Vaccine for Ovarian

Ying Li1,2, Yuan Yuan1,2, Yilin Dai1,2

  • 1Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Advanced Healthcare Materials
|January 20, 2026
PubMed

Insights

A novel nano-vaccine platform using oncolytic adenoviruses overcomes limitations in ovarian cancer treatment by enhancing tumor targeting and immune response. This approach shows promise for combination therapies and improved patient outcomes.

Area of Science:

  • Oncology
  • Immunology
  • Nanotechnology
  • Virology

Background:

  • Advanced ovarian cancer faces challenges with current oncolytic virus vaccines, including limited targeting, immune system clearance, and ascites interference.
  • Existing treatments struggle with receptor-dependent tropism and viral neutralization in the tumor microenvironment.

Purpose of the Study:

  • To develop a novel nano-vaccine platform to overcome limitations of oncolytic virus-based vaccines for advanced ovarian cancer.
  • To enhance tumor-localized delivery, sustained antigen release, and immune stimulation for improved therapeutic efficacy.

Main Methods:

  • Incorporated immunostimulatory oncolytic adenoviruses within tumor cell membranes to create a biomimetic nano-vaccine.
  • Utilized in situ viral replication and PANoptosis to generate immunological hotspots.
  • Evaluated nano-vaccine biodistribution, immune/ascites resistance, and induction of immunogenic cell death.

Main Results:

  • The nano-vaccine demonstrated selective tumor tropism with a 36.3:1 tumor-to-liver biodistribution ratio, resisting immune and ascites interference.
  • Oncolysis triggered immunogenic cell death, releasing damage-associated molecular patterns and promoting systemic antitumor immunity.
  • Combination therapy with PD-1 checkpoint blockade led to complete tumor eradication in 50% of mice and significantly prolonged survival.

Conclusions:

  • The nano-vaccine platform effectively synergizes vaccination and immune reprogramming to dismantle immunosuppressive networks in ovarian cancer.
  • This virotherapy approach offers transformative potential for treating advanced ovarian cancer, especially in combination with immunotherapy or chemotherapy.
Keywords:
CD40LDCadvanced ovarian cancernano‐vaccineoncolytic adenovirus

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