Compensatory effect-based oxidative stress management microneedle for psoriasis treatment

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Dermatology

Background:

• Elevated reactive oxygen species (ROS) cause oxidative DNA damage, worsening psoriasis.
• Normal ROS levels are crucial for cellular functions, including immune responses.

Purpose of the Study:

• To develop a transdermal drug delivery system for psoriasis treatment.
• To create a system that regulates ROS levels and delivers IL-17A siRNA to psoriatic lesions.

Main Methods:

• Fabrication of DNA nanostructures for enhanced stability in physiological environments.
• Incorporation of DNA nanostructures into microneedles (MN) for transdermal delivery.
• Development of ROS control strategies inspired by compensatory effects.

Main Results:

• The developed MN system effectively regulates ROS levels in the psoriatic microenvironment.
• The system inhibits pyroptosis and abnormal immune activation associated with psoriasis.
• Modulating ROS levels enhances the therapeutic efficacy of IL-17A siRNA delivery.

Conclusions:

• The transdermal drug delivery system offers a promising in situ treatment for psoriasis.
• This approach provides a novel strategy for managing ROS levels in inflammatory skin conditions.
• DNA nanostructure-based microneedles represent a viable platform for targeted psoriasis therapy.