Clinical Report: Exploring the Bystander and Abscopal Effects of BNCT

Overview

Boron neutron capture therapy (BNCT) demonstrates potential for inducing bystander and abscopal effects. This review discusses the mechanisms behind these effects and the rationale for combining BNCT with immunotherapy.

Background

BNCT is a high-LET radiotherapy that selectively targets tumor cells enriched with boron-10, sparing surrounding healthy tissues. Understanding the bystander and abscopal effects is crucial as they represent significant biological responses. The integration of BNCT with immunotherapy may provide a novel approach.

Data Highlights

No specific numerical data provided in the article.

Key Findings

• BNCT can induce bystander effects in neighboring non-irradiated cells.
• Abscopal effects may lead to growth suppression of distant tumors after localized BNCT.
• High-LET radiation from BNCT can trigger immunogenic cell death.
• Release of tumor antigens and DAMPs reshapes the tumor immune microenvironment.
• Combining BNCT with immunotherapy may enhance systemic immune responses.

Clinical Implications

The findings indicate that BNCT could be utilized for local tumor control and may have implications for systemic immune responses.

Conclusion

Further research is needed to fully understand the mechanisms of BNCT and optimize combination therapies.

Related Resources & Content

1. Frontiers in Oncology, 2026 -- Potential targets for boron transport in boron neutron capture therapy
2. The ASCO Post, 2019 -- In Era of Immunotherapy, Radiation Therapy May Become Essential Component of Systemic Treatments of Cancer
3. The ASCO Post, 2012 -- Expert Point of View: Dan L. Longo, MD
4. Pharmaceuticals and Medical Devices Agency -- Regulatory background materials
5. PubMed -- Preliminary outcomes of boron neutron capture therapy for head and neck cancers
6. Frontiers, 2026 -- Bystander and Abscopal Effects of Boron Neutron Capture Therapy
7. The ASCO Post — Expert Point of View: Dan L. Longo, MD
8. Pharmaceuticals and Medical Devices Agency
9. Preliminary outcomes of boron neutron capture therapy for head and neck cancers as a treatment covered by public health insurance system in Japan: Real-world experiences over a 2-year period - PubMed
10. Frontiers | Bystander and Abscopal Effects of Boron Neutron Capture Therapy: Radiobiological Mechanisms and Immunotherapeutic Strategies