Therapeutic strategies for Duchenne and Becker dystrophies

Int Rev Cytol. 2004:240:1-30. doi: 10.1016/S0074-7696(04)40001-1.

Abstract

Duchenne muscular dystrophy (DMD), a severe X-linked genetic disease affecting one in 3500 boys, is the most common myopathy in children. DMD is due to a lack of dystrophin, a submembrane protein of the cytoskeleton, which leads to the progressive degeneration of skeletal, cardiac, and smooth muscle tissue. A milder form of the disease, Becker muscular dystrophy (BMD), is characterized by the presence of a semifunctional truncated dystrophin, or reduced levels of full-length dystrophin. DMD is the focus of three different supportive or therapeutic approaches: gene therapy, cell therapy, and drug therapy. Here we consider these approaches in terms of three potential goals: improvement of dystrophic phenotype, expression of dystrophin, and overexpression of utrophin. Utrophin exhibits 80% homology with dystrophin and is able to perform similar functions. Pharmacological strategies designed to overexpress utrophin appear promising and may circumvent many obstacles to gene and cell-based therapies.

Publication types

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

MeSH terms

  • Animals
  • Drug Evaluation, Preclinical / trends
  • Dystrophin / deficiency*
  • Dystrophin / genetics
  • Genetic Therapy / trends
  • Humans
  • Male
  • Muscle, Skeletal / metabolism
  • Muscle, Skeletal / pathology
  • Muscle, Skeletal / physiopathology*
  • Muscular Dystrophy, Duchenne / genetics
  • Muscular Dystrophy, Duchenne / physiopathology
  • Muscular Dystrophy, Duchenne / therapy*
  • Nitric Oxide Synthase / metabolism
  • Utrophin / genetics
  • Utrophin / metabolism

Substances

  • Dystrophin
  • Utrophin
  • Nitric Oxide Synthase