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Updated: Apr 15, 2026

Leprdb Mouse Model of Type 2 Diabetes: Pancreatic Islet Isolation and Live-cell 2-Photon Imaging Of Intact Islets
Published on: May 11, 2015
Minireview: 12-Lipoxygenase and Islet β-Cell Dysfunction in Diabetes
Sarah A Tersey1, Esther Bolanis1, Theodore R Holman1
1Departments of Pediatrics and the Center for Diabetes and Metabolic Diseases (S.A.T., R.G.M.), Biochemistry and Molecular Biology (E.B., R.G.M.), Medicine (R.G.M.), and Cellular and Integrative Physiology (R.G.M.), Indiana University School of Medicine, Indianapolis, Indiana 46202; Department of Chemistry and Biochemistry (T.R.H.), University of California, Santa Cruz, Santa Cruz, California 95064; National Center for Advancing Translational Sciences (D.J.M.), National Institutes of Health, Rockville, Maryland 20850; and Department of Medicine and the Strelitz Diabetes Center (J.L.N.), Eastern Virginia Medical School, Norfolk, Virginia 23507.
Inflammation damages insulin-producing islet beta-cells in diabetes. Inhibiting the enzyme 12-lipoxygenase (12-LO) shows promise for preventing and treating metabolic diseases by reducing this inflammation.
Area of Science:
- Endocrinology
- Metabolic Disease Research
- Molecular Biology
Background:
- Islet beta-cell dysfunction is central to diabetes pathogenesis.
- Inflammation is a key driver of beta-cell damage in both type 1 and type 2 diabetes.
- Lipoxygenases (LOs) produce inflammatory lipid mediators affecting cell function.
Purpose of the Study:
- To review the role of 12-lipoxygenase (12-LO) in islet beta-cell inflammation.
- To explore the therapeutic potential of 12-LO inhibition in metabolic diseases.
Main Methods:
- Review of existing literature on 12-LO and diabetes.
- Analysis of genetic deletion models in mice.
- Examination of molecular pathways involved in 12-LO-mediated inflammation.
Main Results:
- 12-lipoxygenase (12-LO) is expressed in pancreatic islets and promotes inflammation.
- Genetic deletion of 12-LO protects against metabolic disease in mouse models.
- 12-LO plays a significant role in beta-cell derangements associated with diabetes.
Conclusions:
- 12-LO is a key proinflammatory factor in islet beta-cells.
- Inhibiting 12-LO represents a potential therapeutic strategy for diabetes prevention and treatment.
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