A light-driven anti-cancer dual-therapeutic cassette enhances solid tumour regression

Area of Science:

• Biotechnology
• Nanomedicine
• Oncology

Background:

• Conventional anticancer therapeutics often show limited efficacy.
• Developing novel rational design concepts for cancer treatment is crucial.
• Cascade pathways in biological systems offer a model for signal amplification in drug design.

Purpose of the Study:

• To design a novel dual anti-cancer therapeutic system inspired by biological cascade pathways.
• To create a multi-modular platform combining DNA/RNA nanostructures and gold nanocrystals for targeted cancer therapy.
• To evaluate the efficacy of this platform against prostate cancer in vitro and in vivo.

Main Methods:

• Fabrication of a dual therapeutic cassette using DNA/RNA nanostructures as drug carriers and gold nanocrystals for thermal induction.
• Loading of doxorubicin chemotherapy drug into the nanostructures.
• In vitro and in vivo studies on prostate cancer models to assess therapeutic effects.

Main Results:

• The developed platform demonstrated superior drug loading efficiency, tunable drug release, and serum stability compared to conventional methods.
• Combined doxorubicin chemotherapy and gold nanocrystal-induced thermal ablation resulted in synergistic cancer cell killing.
• Significant prostate cancer regression was observed both in vitro and in vivo.

Conclusions:

• The novel dual anti-cancer drug system exhibits potent synergistic effects for cancer regression.
• This multi-modular platform holds promise for treating various solid cancers.
• The design strategy offers a new paradigm for developing advanced anti-cancer therapeutics.