Inhibition of inosine monophosphate dehydrogenase reduces adipogenesis and diet-induced obesity
Article
Article Title | Inhibition of inosine monophosphate dehydrogenase reduces adipogenesis and diet-induced obesity |
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ERA Journal ID | 2147 |
Article Category | Article |
Authors | Su, Hua (Author), Gunter, Jennifer H. (Author), de Vries, Melissa (Author), Connor, Tim (Author), Wanyonyi, Stephen (Author), Newell, Felicity S. (Author), Segal, David (Author), Molero, Juan Carlos (Author), Reizes, Ofer (Author), Prins, Johannes B. (Author), Hutley, Louise J. (Author), Walder, Ken (Author) and Whitehead, Jonathan P. (Author) |
Journal Title | Biochemical and Biophysical Research Communications |
Journal Citation | 386 (2), pp. 351-355 |
Number of Pages | 5 |
Year | 2009 |
Place of Publication | United States |
ISSN | 0006-291X |
1090-2104 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.bbrc.2009.06.040 |
Web Address (URL) | https://www.ncbi.nlm.nih.gov/pubmed/19523919 |
Abstract | We previously described a putative role for inosine monophosphate dehydrogenase (IMPDH), a rate-limiting enzyme in de novo guanine nucleotide biosynthesis, in lipid accumulation. Here we present data which demonstrate that IMPDH activity is required for differentiation of preadipocytes into mature, lipid-laden adipocytes and maintenance of adipose tissue mass. In 3T3-L1 preadipocytes inhibition of IMPDH with mycophenolic acid (MPA) reduced intracellular GTP levels by 60% (p<0.05) and blocked adipogenesis (p<0.05). Co-treatment with guanosine, a substrate in the salvage pathway of nucleotide biosynthesis, restored GTP levels and adipogenesis demonstrating the specificity of these effects. Treatment of diet-induced obese mice with mycophenolate mofetil (MMF), the prodrug of MPA, for 28 days did not affect food intake or lean body mass but reduced body fat content (by 36%, p=0.002) and adipocyte size (p=0.03) and number. These data suggest that inhibition of IMPDH may represent a novel strategy to reduce adipose tissue mass. |
Keywords | 3T3-L1 cells; Adipogenesis; drug effects; animals; diet |
ANZSRC Field of Research 2020 | 320801. Cell physiology |
321402. Clinical pharmacology and therapeutics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Deakin University | |
Cleveland Clinic, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3x72/inhibition-of-inosine-monophosphate-dehydrogenase-reduces-adipogenesis-and-diet-induced-obesity
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