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Fat Mobilization in Adipose Tissue Is Promoted by Adipose Triglyceride Lipase
Abstract
Mobilization of fatty acids from triglyceride stores in adipose tissue requires lipolytic enzymes. Dysfunctional lipolysis affects energy homeostasis and may contribute to the pathogenesis of obesity and insulin resistance. Until now, hormone-sensitive lipase (HSL) was the only enzyme known to hydrolyze triglycerides in mammalian adipose tissue. Here, we report that a second enzyme, adipose triglyceride lipase (ATGL), catalyzes the initial step in triglyceride hydrolysis. It is interesting that ATGL contains a “patatin domain” common to plant acyl-hydrolases. ATGL is highly expressed in adipose tissue of mice and humans. It exhibits high substrate specificity for triacylglycerol and is associated with lipid droplets. Inhibition of ATGL markedly decreases total adipose acyl-hydrolase activity. Thus, ATGL and HSL coordinately catabolize stored triglycerides in adipose tissue of mammals.
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Citations
Cited by
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Petersen, M. C., & Shulman, G. I. (2018) · Physiological Reviews · doi:10.1152/physrev.00063.2017 · Cited by 3,028
Adipocyte dysfunctions linking obesity to insulin resistance and type 2 diabetes.
Guilherme, A., Virbasius, J. V., Puri, V., & Czech, M. P. (2008) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2391 · Cited by 2,292
Human Fatty Liver Disease: Old Questions and New Insights
Cohen, J. C., Horton, J. D., & Hobbs, H. H. (2011) · Science · doi:10.1126/science.1204265 · Cited by 2,089
Progression of NAFLD to diabetes mellitus, cardiovascular disease or cirrhosis
Anstee, Q. M., Targher, G., & Day, C. P. (2013) · Nature Reviews Gastroenterology & Hepatology · doi:10.1038/nrgastro.2013.41 · Cited by 1,747
Baracos, V. E., Martin, L., Korc, M., Guttridge, D. C., & Fearon, K. C. H. (2018) · Nature Reviews Disease Primers · doi:10.1038/nrdp.2017.105 · Cited by 1,738
Metadata
- Authors
- Zimmermann, R., Strauss, J. G., Haemmerle, G., Schoiswohl, G., Birner-Gruenberger, R., Riederer, M., Lass, A., Neuberger, G., Eisenhaber, F., Hermetter, A., & Zechner, R.
- Venue
- Science
- Published
- 2004-11-19
- Volume
- 306
- Issue
- 5700
- Pages
- 1383-1386
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2110839026
- Cited by
- 2,116
- References
- 0
- FWCI
- 25.77
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zimmermann, R., Strauss, J. G., Haemmerle, G., Schoiswohl, G., Birner-Gruenberger, R., Riederer, M., Lass, A., Neuberger, G., Eisenhaber, F., Hermetter, A., & Zechner, R. (2004). Fat Mobilization in Adipose Tissue Is Promoted by Adipose Triglyceride Lipase. Science. https://doi.org/10.1126/science.1100747
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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