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Fromm-Dornieden C, Lytovchenko O, von der Heyde S, et al. Extrinsic and intrinsic regulation of DOR/TP53INP2 expression in mice: effects of dietary fat content, tissue type and sex in adipose and muscle tissues. Nutr Metab (Lond). 2012;9(1):86doi: 10.1186/1743-7075-9-86.
Fromm-Dornieden, C., Lytovchenko, O., von der Heyde, S., Behnke, N., Hogl, S., Berghoff, J., Köpper, F., Opitz, L., Renne, U., Hoeflich, A., Beissbarth, T., Brenig, B., & Baumgartner, B. G. (2012). Extrinsic and intrinsic regulation of DOR/TP53INP2 expression in mice: effects of dietary fat content, tissue type and sex in adipose and muscle tissues. Nutrition & metabolism, 9(1), 86. https://doi.org/10.1186/1743-7075-9-86
Fromm-Dornieden, Carolin, et al. "Extrinsic and intrinsic regulation of DOR/TP53INP2 expression in mice: effects of dietary fat content, tissue type and sex in adipose and muscle tissues." Nutrition & metabolism vol. 9,1 (2012): 86. doi: https://doi.org/10.1186/1743-7075-9-86
Fromm-Dornieden C, Lytovchenko O, von der Heyde S, Behnke N, Hogl S, Berghoff J, Köpper F, Opitz L, Renne U, Hoeflich A, Beissbarth T, Brenig B, Baumgartner BG. Extrinsic and intrinsic regulation of DOR/TP53INP2 expression in mice: effects of dietary fat content, tissue type and sex in adipose and muscle tissues. Nutr Metab (Lond). 2012 Sep 21;9(1):86. doi: 10.1186/1743-7075-9-86. PMID: 22995226; PMCID: PMC3497704.
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Nutr Metab (Lond). 2012 Sep 21;9(1):86. doi: 10.1186/1743-7075-9-86.

Extrinsic and intrinsic regulation of DOR/TP53INP2 expression in mice: effects of dietary fat content, tissue type and sex in adipose and muscle tissues.

Nutrition & metabolism

Carolin Fromm-Dornieden, Oleksandr Lytovchenko, Silvia von der Heyde, Nina Behnke, Sebastian Hogl, Janina Berghoff, Frederik Köpper, Lennart Opitz, Ulla Renne, Andreas Hoeflich, Tim Beissbarth, Bertram Brenig, Bernhard G Baumgartner

Affiliations

  1. Institute of Veterinary Medicine, University of Göttingen, Burckhardtweg 2, 37077, Göttingen, Germany.
  2. Statistical Bioinformatics, Department of Medical Statistics, University Medical Center Göttingen, Humboldtallee 32, 37073, Göttingen, Germany.
  3. DNA Microarray Facility, Department of Developmental Biochemistry, University of Göttingen, Humboldtallee 23, 37073, Göttingen, Germany.
  4. Research Units Genetics & Biometry, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.
  5. Department of Internal Medicine, Metabolic Diseases and Medical Molecular Biology, Paracelsus Private Medical University Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Austria.

PMID: 22995226 PMCID: PMC3497704 DOI: 10.1186/1743-7075-9-86

Abstract

BACKGROUND: DOR/TP53INP2 acts both at the chromosomal level as a nuclear co-factor e.g. for the thyroid hormone receptor and at the extrachromosomal level as an organizing factor of the autophagosome. In a previous study, DOR was shown to be down-regulated in skeletal muscle of obese diabetic Zucker fa/fa rats.

METHODS: To identify sites of differential DOR expression in metabolically active tissues, we measured differences in DOR expression in white adipose tissue (WAT), brown adipose tissue (BAT), skeletal muscle (SM) and heart muscle (HM) by qPCR. To assess whether DOR expression is influenced in the short term by nutritional factors, NMRI mice were fed different fat rich diets (fat diet, FD: 18% or high fat diet, HFD: 80% fat) for one week and DOR expression was compared to NMRI mice fed a control diet (normal diet, ND: 3.3% fat). Additionally, DOR expression was measured in young (45 days old) and adult (100 days old) genetically obese (DU6/DU6i) mice and compared to control (DUKs/DUKsi) animals.

RESULTS: ANOVA results demonstrate a significant influence of diet, tissue type and sex on DOR expression in adipose and muscle tissues of FD and HFD mice. In SM, DOR expression was higher in HFD than in FD male mice. In WAT, DOR expression was increased compared to BAT in male FD and HFD mice. In contrast, expression levels in female mice were higher in BAT for both dietary conditions.DOR expression levels in all tissues of 100 days old genetically obese animals were mainly influenced by sex. In HM, DOR expression was higher in male than female animals.

CONCLUSIONS: DOR expression varies under the influence of dietary fat content, tissue type and sex. We identified target tissues for further studies to analyze the specific function of DOR in obesity. DOR might be part of a defense mechanism against fat storage in high fat diets or obesity.

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