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Gene expression profiling reveals an inflammatory process in the anx/anx mutant mice
Joel Lachuer1, Ling Ouyang, Catherine Legras
1Experimental Neurobiology and Physiopathology Laboratory, Inserm U433, University Claude Bernard Lyon1, 8 rue Guillaume Paradin, 69372 Lyon cedex 08, France. lachuer@univ-lyon1.fr
Brain Research. Molecular Brain Research
|July 12, 2005
Summary
Anorexia (anx) mutation in mice causes lethal starvation due to hypothalamic inflammation. Gene expression profiling revealed upregulated inflammatory genes, potentially explaining the anorexia phenotype in these mice.
Area of Science:
- Neuroscience
- Genetics
- Molecular Biology
Background:
- Anorexia (anx) is a recessive mutation causing lethal starvation in homozygous mice.
- Hypothalamic abnormalities in orexigenic (NPY/AGRP) and anorexigenic (POMC/CART) pathways are observed in anx/anx mice.
Purpose of the Study:
- To investigate the molecular mechanisms underlying the anorexia phenotype in anx/anx mice.
- To identify gene expression changes in the hypothalamus of anx/anx mice.
Main Methods:
- Gene expression profiling using cDNA and oligonucleotide microarrays.
- Analysis of hypothalamic tissue from anx/anx mice and wild-type controls.
Main Results:
- Significant overexpression of genes involved in inflammatory processes was identified in the hypothalamus of anx/anx mice.
- These findings suggest a link between inflammation and the anorexia phenotype.
Conclusions:
- Hypothalamic inflammation is implicated as a potential cause of the anorexia phenotype in anx/anx mice.
- Further research into the inflammatory pathways may reveal therapeutic targets for anorexia.