Nanoneedle-Based Transdermal Gene Delivery: A Minimally Invasive Strategy for Gene Therapy

Area of Science:

• Biotechnology and Nanomedicine
• Pharmaceutical Sciences

Background:

• Transdermal drug delivery systems are explored as alternatives to oral delivery due to challenges.
• First-generation transdermal systems led to the development of microneedles and, subsequently, nanoneedles.
• Current gene therapy delivery methods using viral or chemical carriers face significant challenges.

Purpose of the Study:

• To review the potential pharmaceutical applications of nanoneedles, particularly in gene therapy.
• To provide information on the properties, structure, and fabrication of nanoneedles.
• To highlight nanoneedles as an efficient solution for delivering large molecules like nucleic acids.

Main Methods:

• Review of existing literature on nanoneedle technology and its applications in drug delivery.
• Focus on nanoneedles as a physical method for transdermal administration.
• Exploration of nanoneedles for delivering gene therapy molecules such as DNA, RNA, siRNA, and miRNA.

Main Results:

• Nanoneedles represent a significant advancement over microneedles in transdermal delivery.
• They offer a biocompatible and reliable physical method for gene delivery.
• Nanoneedles can effectively penetrate the skin barrier to deliver nucleic acids directly into cells with minimal invasiveness.

Conclusions:

• Nanoneedles show great promise for advancing transdermal gene therapy.
• This technology overcomes limitations of conventional gene delivery vectors.
• Further research into nanoneedle properties, fabrication, and applications is warranted.