Hypothalamus transcriptome profile suggests an anorexia-cachexia syndrome in the anx/anx mouse model

Josep Maria Mercader, Juan José Lozano, Lauro Sumoy, Mara Dierssen, Joana Visa, Mònica Gratacòs, Xavier P. Estivill

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The anx/anx mouse displays poor appetite and lean appearance and is considered a good model for the study of anorexia nervosa. To identify new genes involved in feeding behavior and body weight regulation we performed an expression profiling in the hypothalamus of the anx/anx mice. Using commercial microarrays we detected 156 differentially expressed genes and validated 92 of those using TaqMan low-density arrays. The expression of a set of 87 candidate genes selected based on literature evidences was also quantified by TaqMan low-density arrays. Our results showed enrichment in deregulated genes involved in cell death, cell morphology, and cancer, as well as an alteration of several signaling circuits involved in energy balance including neuropeptide Y and melanocortin signaling. The expression profile along with the phenotype led us to conclude that anx/anx mice resemble the anorexia-cachexia syndrome typically observed in cancer, infection with human immunodeficiency virus or chronic diseases, rather than starvation, and that anx/anx mice could be considered a good model for the treatment and investigation of this condition.

Original languageEnglish
Pages (from-to)341-350
Number of pages10
JournalPhysiological Genomics
Volume35
Issue number3
DOIs
Publication statusPublished - Nov 2008
Externally publishedYes

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Keywords

  • Chronic disorders
  • Feeding regulation
  • Gene expression
  • Microarrays
  • TaqMan low-density arrays

ASJC Scopus subject areas

  • Physiology
  • Genetics

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