Prospective Cancer Therapies Using Stimuli-Responsive DNA Nanostructures

Area of Science:

• Biotechnology
• Nanomedicine
• Drug Delivery Systems

Background:

• Current chemotherapeutics exhibit significant off-target toxicity, particularly small molecules, necessitating improved delivery methods.
• Developing strategies to minimize side effects and enhance antitumor efficacy is crucial for effective cancer treatment.
• DNA nanotechnology offers a promising platform for creating custom, biocompatible nanostructures for therapeutic applications.

Purpose of the Study:

• To explore strategies and triggers for targeted delivery of therapeutic molecules using DNA nanostructures (DNs).
• To review how DNs can interact with specific targets and release their cargo upon external stimuli.
• To highlight the prospects and challenges associated with DNA nanotechnology in drug delivery.

Main Methods:

• Review of existing literature on DNA self-assembly for nanostructure fabrication.
• Analysis of various stimuli-responsive mechanisms for controlled drug release from DNs.
• Exploration of different modalities for DNs to interact with biological targets.

Main Results:

• DNA nanostructures (DNs) can be engineered for biocompatibility and nuclease resistance.
• Various external stimuli can trigger structural changes in DNs for targeted cargo display or release.
• DNs demonstrate potential for site-specific drug delivery, similar to liposomal systems.

Conclusions:

• DNA nanotechnology provides a versatile platform for developing targeted drug delivery systems.
• Stimuli-responsive DNs offer a strategy to overcome the limitations of conventional chemotherapy.
• Further research into the prospects and challenges is needed to fully realize the clinical potential of DNs.