Bio-inspired protein-gold nanoconstruct with core-void-shell structure: beyond a chemo drug carrier

Area of Science:

• Biomaterials Science
• Nanotechnology
• Cancer Therapeutics

Background:

• Chemotherapy faces challenges in maximizing anticancer activity and minimizing side effects.
• Developing targeted drug delivery systems is crucial for effective cancer treatment.

Purpose of the Study:

• To design a bio-inspired protein-gold nanoconstruct (AFt-Au) for enhanced chemotherapy.
• To investigate the efficacy of AFt-Au loaded with 5-fluorouracil (5-FU) in cancer cells.

Main Methods:

• Fabrication of a core-void-shell protein-gold nanoconstruct (AFt-Au).
• Loading of 5-fluorouracil (5-FU) into the nanoconstruct to form AFt-AuFU.
• Evaluation of cellular uptake, cytotoxicity, and mechanism of action in HepG2 and other cancer cell lines.

Main Results:

• AFt-AuFU demonstrated increased cellular uptake of 5-FU.
• AFt-Au acted as a chemosensitizer, significantly reducing the IC50 of 5-FU in HepG2 cells (from 138.3 μM to 9.2 μM).
• Enhanced anticancer efficacy was observed in multiple cell lines, with potential for reduced side effects.

Conclusions:

• The AFt-Au nanoconstruct offers a promising platform for targeted cancer drug delivery.
• This approach enhances chemotherapeutic outcomes by improving drug efficacy and cellular uptake.
• The study presents a novel nanoscience strategy for optimizing chemotherapy.