A lipid droplet targeted fluorescent probe for high-efficiency image-guided photodynamic therapy of renal cell...

Area of Science:

• Biomedical Engineering
• Organic Chemistry
• Oncology

Background:

• Clear cell renal cell carcinoma (ccRCC) is a major form of kidney cancer.
• Photodynamic therapy (PDT) is a promising cancer treatment modality.
• Targeted delivery of therapeutic agents is crucial for effective PDT.

Purpose of the Study:

• To design and synthesize a novel fluorescent probe, TTIE.
• To achieve lipid droplet (LD) specific targeting for image-guided PDT.
• To evaluate the efficacy of TTIE-mediated PDT in ccRCC cells and tissues.

Main Methods:

• One-step synthesis of the LD-specific fluorescent probe TTIE.
• Characterization of probe properties including specificity, photostability, and ROS generation capacity.
• In vitro and ex vivo evaluation of TTIE-mediated PDT in human ccRCC primary cells and tissues under low-powered white light irradiation.

Main Results:

• Successful one-step synthesis of TTIE with high specificity for LDs.
• TTIE demonstrated good photostability and efficient generation of cytotoxic reactive oxygen species (ROS).
• TTIE facilitated image-guided PDT, showing therapeutic potential in ccRCC models.

Conclusions:

• TTIE is a highly specific LD-targeting fluorescent probe.
• TTIE enables effective image-guided photodynamic therapy for ccRCC.
• The developed probe shows promise for clinical translation in ccRCC treatment.