Gene therapy progress and prospects: the eye

Gene Ther. 2006 Aug;13(16):1191-7. doi: 10.1038/ Epub 2006 Jul 13.


The eye has unique advantages as a target organ for gene therapy of both inherited and acquired ocular disorders and offers a valuable model system for gene therapy. The eye is readily accessible to phenotypic examination and investigation of therapeutic effects in vivo by fundus imaging and electrophysiological techniques. Considerable progress has been made in the development of gene replacement therapies for retinal degenerations resulting from gene defects in photoreceptor cells (rds, RPGRIP, RS-1) and in retinal pigment epithelial cells (MerTK, RPE65, OA1) using recombinant adeno-associated virus and lentivirus-based vectors. Gene therapy also offers a potentially powerful approach to the treatment of complex acquired disorders such as those involving angiogenesis, inflammation and degeneration, by the targeted sustained intraocular delivery of therapeutic proteins. Proposals for clinical trials of gene therapy for early-onset retinal degeneration owing to defects in the gene encoding the visual cycle protein RPE65 have recently received ethical approval.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Clinical Trials as Topic
  • Dependovirus / genetics
  • Eye Diseases / metabolism
  • Eye Diseases / therapy*
  • Gene Expression Regulation
  • Gene Transfer Techniques
  • Genetic Engineering
  • Genetic Therapy / methods
  • Genetic Therapy / trends*
  • Genetic Vectors / administration & dosage
  • Humans
  • Retina / metabolism