Exploring BODIPY derivatives as sonosensitizers for anticancer sonodynamic therapy

Area of Science:

• Biomedical Engineering
• Materials Science
• Oncology

Background:

• Sonodynamic therapy (SDT) is an emerging non-invasive cancer treatment with deep tissue penetration capabilities.
• Developing novel sonosensitizers with high efficacy and safety is crucial for advancing SDT.
• Boron dipyrromethene (BODIPY) dyes are widely used in biomedicine, but their potential as sonosensitizers remains unexplored.

Purpose of the Study:

• To synthesize and investigate novel BODIPY dyes for their potential as sonosensitizers in SDT.
• To evaluate the sonosensitivity and therapeutic efficacy of these novel BODIPY dyes against cancer.
• To elucidate the underlying sonodynamic therapeutic mechanisms of the most effective BODIPY dye.

Main Methods:

• Synthesis of four novel BODIPY dyes (BDP1-BDP4).
• In vitro evaluation of sonosensitivity and cancer cell killing efficacy.
• In vivo studies using tumor-bearing mice to assess therapeutic outcomes.
• Investigation of reactive oxygen species generation, cavitation effects, and cell apoptosis.

Main Results:

• BDP4 demonstrated superior sonosensitivity and high SDT efficiency against cancer cells.
• BDP4 effectively suppressed tumor growth in vivo in tumor-bearing mice.
• The study identified reactive oxygen species and cavitation as key mechanisms contributing to BDP4's sonodynamic effect.

Conclusions:

• This study introduces BODIPY dyes as a novel class of sonosensitizers for SDT.
• BDP4 shows significant potential for developing more effective and safer sonosensitizers for cancer therapy.
• The findings open new avenues for BODIPY-based theranostics in oncology.