title: Maternal prenatal undernutrition programs adipose tissue gene expression in adult male rat offspring under high-fat diet.
abstract: 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.
authors.affiliation: Unité Environnement Périnatal et Croissance, Université Lille-Nord de France, Equipe Dénutritions Maternelles Périnatales, Villeneuve d'Ascq.
authors.forename: Marie-Amélie
authors.initials: MA
authors.lastname: Lukaszewski
authors.forename: Sylvain
authors.initials: S
authors.lastname: Mayeur
authors.forename: Isabelle
authors.initials: I
authors.lastname: Fajardy
authors.forename: Fabien
authors.initials: F
authors.lastname: Delahaye
authors.forename: Isabelle
authors.initials: I
authors.lastname: Dutriez-Casteloot
authors.forename: Valérie
authors.initials: V
authors.lastname: Montel
authors.forename: Anne
authors.initials: A
authors.lastname: Dickes-Coopman
authors.forename: Christine
authors.initials: C
authors.lastname: Laborie
authors.forename: Jean
authors.initials: J
authors.lastname: Lesage
authors.forename: Didier
authors.initials: D
authors.lastname: Vieau
authors.forename: Christophe
authors.initials: C
authors.lastname: Breton
mesh_terms: D043205:11-beta-Hydroxysteroid Dehydrogenase Type 1 / Q000235:genetics / Q000378:metabolism; D043209:11-beta-Hydroxysteroid Dehydrogenase Type 2 / Q000235:genetics / Q000378:metabolism; D000273:Adipose Tissue / Q000378:metabolism*; D050154:Adiposity / Q000187:drug effects / Q000235:genetics; D000818:Animals; D001835:Body Weight / Q000235:genetics; D004041:Dietary Fats / Q000378:metabolism*; D005260:Female; D015870:Gene Expression; D020738:Leptin / Q000235:genetics / Q000378:metabolism; D008297:Male; D044342:Malnutrition / Q000235:genetics / Q000378:metabolism*; D039382:Maternal Nutritional Physiological Phenomena / Q000502:physiology*; D009765:Obesity / Q000235:genetics / Q000378:metabolism; D010766:Phosphorylation; D051381:Rats; D017208:Rats, Wistar; D050796:STAT3 Transcription Factor / Q000235:genetics / Q000378:metabolism
chemical_list: D004041:Dietary Fats; D020738:Leptin; D050796:STAT3 Transcription Factor; D043205:11-beta-Hydroxysteroid Dehydrogenase Type 1; D043209:11-beta-Hydroxysteroid Dehydrogenase Type 2