Basic and translational research on carbon-ion radiobiology

Area of Science:

• Oncology
• Radiation Oncology
• Medical Physics

Background:

• Carbon-ion beam irradiation (IR) presents significant advantages over conventional photon beams for tumor treatment due to precise energy deposition.
• Over 28 years, carbon ion radiotherapy (CIRT) has treated over 14,000 patients with various cancers, demonstrating promising clinical outcomes.

Purpose of the Study:

• To provide an overview of basic and translational research on carbon-ion radiobiology.
• To explore mechanisms of carbon-ion IR-induced cell death and enhanced radiocurability.
• To summarize applications in human cancer cells, including cancer stem cells (CSCs), and clinical outcomes.

Main Methods:

• Review of basic and translational research on carbon-ion radiobiology.
• Analysis of mechanisms underlying high linear energy transfer (LET) carbon-ion IR-induced cell death (apoptosis, autophagy, senescence, mitotic catastrophe).
• Evaluation of combination therapies involving carbon-ion beams with drugs and immunotherapy.

Main Results:

• Carbon-ion beams demonstrate high radiocurability, especially when combined with DNA damaging drugs, molecular-targeted drugs, micro-RNA therapeutics, and immunotherapy.
• Specific focus on the application and efficacy of these treatments in human cancer cells, particularly cancer stem cells (CSCs).
• Summary of current studies detailing the application of carbon-ion beam IR across different cancer types and their associated clinical outcomes.

Conclusions:

• Carbon-ion radiotherapy is a highly effective treatment modality with unique radiobiological properties.
• Further research into combination therapies and applications in specific cancer types, including CSCs, holds significant promise for improving patient outcomes.