Targeted gene correction strategies

P. D. Richardson, B. T. Kren, Clifford J Steer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We are now approaching the reality of success in gene therapy as our knowledge of the genetic basis of disease continues to grow, coupled with improved delivery methods for therapeutic nucleic acid molecules. It is apparent that gene therapy can be divided into two specific and very different approaches in which gene replacement, or augmentation, is differentiated from gene repair. In fact, gene augmentation is characterized by the delivery of the coding sequence of the gene of interest in an expression cassette. In contrast, gene repair differs in that the process targets for correction of the mutation responsible for the genetic disorder. The in situ repair of a gene has many advantages over conventional replacement methods. This review will concentrate on the various strategies currently available for gene repair. The potential benefits of correction versus augmentation will be addressed and possible future developments outlined.

Original languageEnglish (US)
Pages (from-to)327-337
Number of pages11
JournalCurrent Opinion in Molecular Therapeutics
Issue number4
StatePublished - 2001


  • Chimeric RNA/DNA oligonucleotides
  • Gene repair
  • Gene therapy
  • Homologous recombination
  • Homologous replacement
  • Small fragment targeted gene correction
  • Triplex-forming oligonucleotides


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