Progress on ocular siRNA gene-silencing therapy and drug delivery systems

Fundam Clin Pharmacol. 2021 Feb;35(1):4-24. doi: 10.1111/fcp.12561. Epub 2020 May 8.

Abstract

Age-related macular degeneration (AMD) and glaucoma are global ocular diseases with high blindness rate. RNA interference (RNAi) is being increasingly used in the treatment of these disorders with siRNA drugs, bevasiranib, AGN211745 and PF-04523655 for AMD, and SYL040012 and QPI-1007 for glaucoma. Administration routes and vectors of gene drugs affect their therapeutic effect. Compared with the non-viral vectors, viral vectors have limited payload capacity and potential immunogenicity. This review summarizes the progress of the ocular siRNA gene-silencing therapy by focusing on siRNA drugs for AMD and glaucoma already used in clinical research, the main routes of drug delivery and the non-viral vectors for siRNA drugs.

Keywords: RNA interference technology; age-related macular degeneration; glaucoma; non-viral vectors; siRNA drugs.

Publication types

  • Review

MeSH terms

  • Blood-Retinal Barrier
  • Drug Delivery Systems*
  • Gene Silencing
  • Genetic Therapy / methods*
  • Glaucoma / therapy*
  • Macular Degeneration / therapy*
  • RNA, Small Interfering / administration & dosage
  • RNA, Small Interfering / genetics*

Substances

  • RNA, Small Interfering