Maternal prenatal undernutrition programs adipose tissue gene expression in adult male rat offspring under high-fat diet
| Autor: | Valérie Montel, Didier Vieau, Jean Lesage, Christophe Breton, I. Fajardy, Fabien Delahaye, Sylvain Mayeur, Isabelle Dutriez-Casteloot, Christine Laborie, Marie Amélie Lukaszewski, Anne Dickes-Coopman |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Leptin
Male STAT3 Transcription Factor medicine.medical_specialty Physiology Offspring Endocrinology Diabetes and Metabolism Gene Expression Adipose tissue Biology chemistry.chemical_compound Corticosterone 11-beta-Hydroxysteroid Dehydrogenase Type 2 Physiology (medical) Internal medicine 11-beta-Hydroxysteroid Dehydrogenase Type 1 Gene expression medicine Animals Obesity Phosphorylation Rats Wistar Adiposity Body Weight Malnutrition Maternal Nutritional Physiological Phenomena medicine.disease Dietary Fats Rats Endocrinology Adipose Tissue chemistry Adipogenesis Female Metabolic syndrome hormones hormone substitutes and hormone antagonists |
| Zdroj: | American Journal of Physiology-Endocrinology and Metabolism. 301:E548-E559 |
| ISSN: | 1522-1555 0193-1849 |
| Popis: | Several studies have shown that maternal undernutrition leading to low birth weight predisposes offspring to the development of metabolic pathologies such as obesity. Using a model of prenatal maternal 70% food restriction diet (FR30) in rat, we evaluated whether postweaning high-fat (HF) diet would amplify the phenotype observed under standard diet. We investigated biological parameters as well as gene expression profile focusing on white adipose tissues (WAT) of adult offspring. FR30 procedure does not worsen the metabolic syndrome features induced by HF diet. However, FR30HF rats displayed catch-up growth to match the body weight of adult control HF animals, suggesting an increase of adiposity while showing hyperleptinemia and a blunted increase of corticosterone. Using quantitative RT-PCR array, we demonstrated that FR30HF rats exhibited leptin and Ob-Rb as well as many peptide precursor and receptor gene expression variations in WAT. We also showed that the expression of genes involved in adipogenesis was modified in FR30HF animals in a depot-specific manner. We observed an opposite variation of STAT3 phosphorylation levels, suggesting that leptin sensitivity is modified in WAT adult FR30 offspring. We demonstrated that 11β-HSD1, 11β-HSD2, GR, and MR genes are coexpressed in WAT and that FR30 procedure modifies gene expression levels, especially under HF diet. In particular, level variation of 11β-HSD2, whose protein expression was detected by Western blotting, may represent a novel mechanism that may affect WAT glucocorticoid sensitivity. Data suggest that maternal undernutrition differently programs the adult offspring WAT gene expression profile that may predispose for altered fat deposition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|