Gene therapy for cardiac cachexia?

Int J Cardiol. 2002 Sep;85(1):185-91. doi: 10.1016/s0167-5273(02)00253-x.

Abstract

The prevention or attenuation of disease-related skeletal muscle degeneration has been a common goal in the treatment of cardiac cachexia. Cell-based therapies are complicated by insufficient numbers of autologous myoblasts and by ineffective incorporation into host muscle. Pharmacological administration of growth hormone in a variety of clinical conditions characterized by an increase in catabolic rate have been associated with increases in mortality and morbidity, resulting in a decrease in the clinical use of growth hormone and its downstream effector, insulin-like growth factor-1 and a decline in general research into anabolic treatment strategies. In mouse models, however, the selective expression of a muscle-specific transgene encoding a locally acting IGF-1 isoform induces muscle hypertrophy, prevents age- or disease-related atrophy, by increasing stem cell recruitment to injured or degenerating tissue. This gene-based approach avoids hypertrophic effects on distal organs such as the heart, and eliminates risk of possible neoplasms induced by inappropriate high expression levels of circulating IGF-1. The potential therapeutic role of locally expressed IGF-1 is discussed in the context of current strategies for the attenuation of cardiac cachexia.

Publication types

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

MeSH terms

  • Animals
  • Biomarkers / blood
  • Cachexia / etiology
  • Cachexia / therapy*
  • Disease Progression
  • Genetic Therapy*
  • Heart Failure / complications
  • Heart Failure / therapy*
  • Humans
  • Insulin-Like Growth Factor I / genetics
  • Insulin-Like Growth Factor I / metabolism
  • Muscle, Skeletal / blood supply
  • Muscle, Skeletal / metabolism

Substances

  • Biomarkers
  • Insulin-Like Growth Factor I