Maternal Brown Fat Thermogenesis Programs Glucose Tolerance in the Male Offspring
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ABSTRACT:
PROVIDER: PRJNA606192 | ENA |
REPOSITORIES: ENA
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Project description:We tested if minor changes in maternal non-shivering thermogenesis during pregnancy can severely alter the phenotype of the offspring already in the next generation. Therefore, male offspring of dams lacking the uncoupling protein 1 (UCP1-KO) in the thermogenic brown adipose tissue were analysed. Genome-wide expression profiling identified several alterations in the hepatic transcriptomic landscape, demonstrating that even minor differences in the demand for maternal thermogenesis profoundly and permanently alter hepatic gene activity in the adult offspring. Liver gene expression data of offspring from WT and UCP1-KO dams.
2020-11-09 | GSE145143 | GEO
Project description:We tested if minor changes in environmental temperature during pregnancy can severely alter the phenotype of the offspring already in the next generation. Genome-wide expression profiling of liver samples obtained from adult male mice offspring identified several alterations in the hepatic transcriptomic landscape, thus demonstrating that even minor differences in the demand for maternal thermogenesis profoundly and permanently alter hepatic gene activity in the adult offspring. Liver gene expression data of offspring from dams that were kept at different ambient temperatures (30°C, 23°C, 18°C, 10°C) only during pregnancy.
2020-11-09 | GSE145142 | GEO
Project description:Maternal Brown Fat Thermogenesis Programs Glucose Tolerance in the Male Offspring
| PRJNA606193 | ENA
Project description:Metabolomics dataset of serum from T3-treated dams. Related to following publication by Oelkrug et al: "Maternal thyroid hormone receptor beta activation sparks brown fat thermogenesis in the offspring"
2023-01-11 | MSV000091042 | GNPS
Project description:It is well established that maternal thyroid hormones play an important role for the developing fetus; however, the consequences of maternal hyperthyroidism for the offspring remain poorly understood. Here we show in mice that maternal 3,3',5-triiodothyronine (T3) treatment during pregnancy leads to improved glucose tolerance in the adult male offspring and hyperactivity of brown adipose tissue (BAT) thermogenesis in both sexes starting early after birth. The activated BAT provides advantages upon cold exposure, reducing the strain on other thermogenic organs like muscle. This maternal BAT programming requires intact maternal thyroid hormone receptor β (TRβ) signaling, as offspring of mothers lacking this receptor display the opposite phenotype. On the molecular level, we identify distinct T3 induced alterations in maternal serum metabolites, including choline, a key metabolite for healthy pregnancy. Taken together, our results connect maternal TRβ activation to the fetal programming of a thermoregulatory phenotype in the offspring.
| S-EPMC10597992 | biostudies-literature
Project description:Analysis of glucose and Lipid metabolism in male and female offspring after protein restriction of the mother Male offspring showed features of metabolic syndrome after receiving a high fat diet, regardless of the diet of the dam. Glucose and lipid metabolism in male offspring was unaltered. Insulin sensitivity and hepatic fatty acid storage in female offspring of low-protein-fed dams changed in such a way that it resembled the male pattern of insulin sensitivity and hepatic fatty acid storage. Microarray analysis on hepatic gene expression patterns confirmed these findings. We therefore conclude that in mice, maternal protein restriction does not change the response of glucose and fatty acid metabolism to a high fat diet in male offspring, but does program metabolism in female offspring in such a way that it resembles male metabolism. Our findings might have implications for potential future gender-specific treatment of the features of metabolic diseases. Total RNA obtained from liver (16 samples per gender) were compared in the different groups. In total, 4 groups per gender, each group consisting of 4 biological replicates.
2012-02-08 | E-GEOD-15940 | biostudies-arrayexpress
Project description:Brown adipose tissue (BAT) is best known for thermogenesis. Whereas numerous studies in rodents found tight associations between the metabolic benefits of BAT and enhanced whole-body energy expenditure, emerging evidence in humans suggests that BAT is protective against Type 2 diabetes independent of body-weight. The underlying mechanism for this dissociation remained unclear. Here, we report that impaired mitochondrial flux of branched-chain amino acids (BCAA) in BAT, by deleting mitochondrial BCAA carrier (MBC, encoded by Slc25a44), was sufficient to cause systemic insulin resistance without affecting whole-body energy expenditure or body-weight. We found that brown adipocytes catabolized BCAAs in the mitochondria as essential nitrogen donors for the biosynthesis of glutamate, N-acetylated amino acids, and one of the products, glutathione. BAT-selective impairment in mitochondrial BCAA flux led to elevated oxidative stress and insulin resistance in the liver, accompanied by reduced levels of BCAA-nitrogen derived metabolites in the circulation. In turn, supplementation of glutathione restored insulin sensitivity of BAT-specific MBC knockout mice. Notably, a high-fat diet rapidly impaired BCAA catabolism and the synthesis of BCAA-nitrogen derived metabolites in the BAT, while cold-induced BAT activity is coupled with an active synthesis of these metabolites. Together, the present work uncovers a mechanism through which brown fat controls metabolic health independent of thermogenesis via BCAA-derived nitrogen carriers acting on the liver.
2024-02-15 | PXD044020 | Pride
Project description:Brown adipose tissue (BAT) is best known for thermogenesis. Whereas numerous studies in rodents found tight associations between the metabolic benefits of BAT and enhanced whole-body energy expenditure, emerging evidence in humans suggests that BAT is protective against Type 2 diabetes independent of body-weight. The underlying mechanism for this dissociation remained unclear. Here, we report that impaired mitochondrial flux of branched-chain amino acids (BCAA) in BAT, by deleting mitochondrial BCAA carrier (MBC, encoded by Slc25a44), was sufficient to cause systemic insulin resistance without affecting whole-body energy expenditure or body-weight. We found that brown adipocytes catabolized BCAAs in the mitochondria as essential nitrogen donors for the biosynthesis of glutamate, N-acetylated amino acids, and one of the products, glutathione. BAT-selective impairment in mitochondrial BCAA flux led to elevated oxidative stress and insulin resistance in the liver, accompanied by reduced levels of BCAA-nitrogen derived metabolites in the circulation. In turn, supplementation of glutathione restored insulin sensitivity of BAT-specific MBC knockout mice. Notably, a high-fat diet rapidly impaired BCAA catabolism and the synthesis of BCAA-nitrogen derived metabolites in the BAT, while cold-induced BAT activity is coupled with an active synthesis of these metabolites. Together, the present work uncovers a mechanism through which brown fat controls metabolic health independent of thermogenesis via BCAA-derived nitrogen carriers acting on the liver.
2024-02-15 | PXD043992 | Pride
Project description:Poor maternal diet can lead to metabolic disease in offspring, whereas maternal exercise may have beneficial effects on offspring health. In this study, we determined ifmaternal exercise could reverse the detrimental effects of maternal high-fat feeding on offspring metabolism of female mice. C57BL/6 female mice were fed a chow (21%) or high-fat (60%) diet and further divided by housing in static cages or cages with running wheels for 2 weeks prior to breeding and throughout gestation. Females were bred with chow-fed sedentary C57BL/6 males. High fat-fed sedentary dams produced female offspring with impaired glucose tolerance compared with offspring of chow-fed dams throughout their first year of life, an effect not present in the offspring from high fat-fed dams that had trained. Offspring from high fat-fed trained dams had normalized glucose tolerance, decreased fasting insulin, and decreased adiposity. Liver metabolic function, measured by hepatic glucose production in isolated hepatocytes, hyperinsulinemic-euglycemic clamps, liver triglyceride content, and liver enzyme expression, was enhanced in offspring from trained dams. In conclusion, maternal exercise negates the detrimental effects of a maternal high-fat diet on glucose tolerance and hepatocyte glucose metabolism in female offspring. The ability of maternal exercise to improve the metabolic health of female offspring is important, as this intervention could combat the transmission of obesity and diabetes to subsequent generations.
| S-EPMC5521858 | biostudies-other
Project description:The signaling mechanisms underlying adipose thermogenesis have not been fully elucidated. Particularly, the involvement of adipokines that are selectively expressed in brown adipose tissue (BAT) and beige adipocytes remains to be investigated. Here we show that a previously uncharacterized adipokine (UPF0687 protein / human C20orf27 homolog) we named as Adissp (Adipose-secreted signaling protein) is a key regulator for white adipose tissue (WAT) thermogenesis and glucose homeostasis. Adissp expression is adipose-specific and highly BAT-enriched, and its secretion is stimulated by β3-adrenergic activation. Gain-of-functional studies collectively showed that secreted Adissp promotes WAT thermogenesis, improves glucose homeostasis, and protects against obesity. Adipose-specific Adissp knockout mice are defective in WAT browning, and are susceptible to high fat diet-induced obesity and hyperglycemia. Mechanistically, Adissp binds to a putative receptor on adipocyte surface and activates protein kinase A independently of β-adrenergic signaling. These results establish BAT-enriched Adissp as a major upstream signaling component in thermogenesis and offer a potential avenue for the treatment of obesity and diabetes.
| S-EPMC9741603 | biostudies-literature