4.7 Review

Is Viral Vector Gene Delivery More Effective Using Biomaterials?

Journal

ADVANCED HEALTHCARE MATERIALS
Volume 10, Issue 1, Pages -

Publisher

WILEY
DOI: 10.1002/adhm.202001238

Keywords

biomaterials; effective delivery; gene delivery; viral vectors

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Gene delivery is crucial for treating genetic or epigenetic disorders, with efforts focused on improving the delivery and efficacy of viral gene therapy. Biomaterials offer a promising option for controlled and targeted gene delivery, potentially overcoming major challenges in current gene therapy approaches.
Gene delivery has been extensively investigated for introducing foreign genetic material into cells to promote expression of therapeutic proteins or to silence relevant genes. This approach can regulate genetic or epigenetic disorders, offering an attractive alternative to pharmacological therapy or invasive protein delivery options. However, the exciting potential of viral gene therapy has yet to be fully realized, with a number of clinical trials failing to deliver optimal therapeutic outcomes. Reasons for this include difficulty in achieving localized delivery, and subsequently lower efficacy at the target site, as well as poor or inconsistent transduction efficiency. Thus, ongoing efforts are focused on improving local viral delivery and enhancing its efficiency. Recently, biomaterials have been exploited as an option for more controlled, targeted and programmable gene delivery. There is a growing body of literature demonstrating the efficacy of biomaterials and their potential advantages over other delivery strategies. This review explores current limitations of gene delivery and the progress of biomaterial-mediated gene delivery. The combination of biomaterials and gene vectors holds the potential to surmount major challenges, including the uncontrolled release of viral vectors with random delivery duration, poorly localized viral delivery with associated off-target effects, limited viral tropism, and immune safety concerns.

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