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Melanocortin-4 receptor antagonists as potential therapeutics in the treatment of cachexia

Alan C Foster1, Chen Chen

  • 1Neurocrine Biosciences Inc., San Diego, CA 92130, USA. afoster@neurocrine.com

Current Topics in Medicinal Chemistry
|June 23, 2007
PubMed

Insights

Melanocortin-4 (MC4) receptor antagonists show promise for treating cachexia, a wasting condition. These compounds protect against anorexia and body mass loss in animal models, offering hope for chronic diseases.

Area of Science:

  • Endocrinology
  • Pharmacology
  • Metabolic Regulation

Background:

  • The melanocortin-4 (MC4) receptor is crucial for regulating body weight.
  • MC4 receptor dysfunction causes obesity, while its antagonism increases food intake and decreases metabolism.
  • MC4 receptor antagonism in cachexia models protects against anorexia and body mass loss.

Purpose of the Study:

  • To explore the therapeutic potential of MC4 receptor antagonists in treating cachexia.
  • To evaluate the efficacy of non-peptide MC4 antagonists in preclinical models of wasting diseases.

Main Methods:

  • Discovery and optimization of high-affinity, selective non-peptide MC4 receptor antagonists.
  • Assessment of systemic activity and protective effects against cachectic symptoms in animal models.
  • Evaluation in models of tumor-induced wasting.

Main Results:

  • Development of potent non-peptide MC4 antagonists with high affinity and selectivity.
  • Demonstrated efficacy of systemically active antagonists in protecting against cachectic symptoms in animal models.
  • Protection from anorexia and loss of lean and fat body mass observed.

Conclusions:

  • MC4 receptor antagonists represent a promising therapeutic strategy for cachexia.
  • These compounds may offer a novel treatment for wasting associated with chronic diseases like cancer and AIDS.
  • Further development of MC4 antagonists is anticipated for managing cachexia in various chronic conditions.

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