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Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.

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Related Experiment Video

Updated: Jun 4, 2026

Glioblastoma Relapse Post-Resection Model for Therapeutic Hydrogel Investigations
04:46

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Published on: February 24, 2023

Immunomodulatory Hydrogel Coupling Pyroptosis Amplification With T-Cell Modulation to Block Postoperative Tumor

Fang Wang1,2, Mingkang Liu2, Lei Liu2,3

  • 1Department of Polymer Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, China.

Advanced Healthcare Materials
|June 2, 2026
PubMed
Summary

A novel hydrogel triggers pyroptosis in residual tumor cells and reprograms CD8+ T cells to prevent cancer recurrence after surgery. This approach converts the immunosuppressive tumor microenvironment into an immunogenic one, enhancing anti-tumor immunity.

Keywords:
CD8+ T cellsbacterial membrane vesiclesbutyratepostoperative immunotherapyprodrug hydrogelpyroptosis

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Area of Science:

  • Biomaterials Science
  • Immunology
  • Cancer Therapy

Background:

  • Postoperative tumor recurrence is a major challenge in cancer surgery.
  • Residual tumor cells and an immunosuppressive microenvironment contribute to recurrence.

Purpose of the Study:

  • To develop a tumor microenvironment-responsive hydrogel to prevent postoperative tumor recurrence.
  • To couple pyroptosis induction with CD8+ T cell modulation.

Main Methods:

  • Engineered bacterial membrane vesicles encoding a gasdermin D-mediated pyroptosis program.
  • Butyrate prodrug hydrogel for controlled release of vesicles and butyrate.
  • In situ gelation within the surgical cavity.

Main Results:

  • Hydrogel triggered self-amplifying pyroptosis in residual tumor cells, eliminating malignancies.
  • Pyroptosis induced release of damage-associated molecular patterns, converting the niche to immunogenic.
  • Butyrate enhanced CD8+ T cell effector function, promoting anti-tumor immunity.

Conclusions:

  • The combinatorial platform effectively remodels the postoperative tumor microenvironment.
  • This localized immunomodulatory strategy provides durable protection against tumor regrowth.
  • The approach addresses the challenge of postoperative tumor recurrence.