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Grün, NG; Zeyda, K; Moreno-Viedma, V; Strohmeier, K; Staffler, G; Zeyda, M; Stulnig, TM.
A humanized osteopontin mouse model and its application in immunometabolic obesity studies.
Transl Res. 2016; 178(10):63-73
Doi: 10.1016/j.trsl.2016.07.009
Web of Science
PubMed
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- Abstract:
- Osteopontin (OPN) is a multifunctional protein involved in several inflammatory processes and pathogeneses including obesity-related disorders and cancer. OPN binds to a variety of integrin receptors and CD44 resulting in a proinflammatory stimulus. Therefore, OPN constitutes a novel interesting target to develop new therapeutic strategies, which counteract OPN's proinflammatory properties. We established a humanized SPP1 (hSPP1) mouse model and evaluated its suitability as a model for obesity and insulin resistance. Unchallenged hSPP1 animals did not significantly differ in body weight and gross behavioral properties compared to wild-type (WT) animals. High-fat diet-challenged hSPP1 similarly developed obesity and inflammation, whereas insulin resistance was markedly changed. However, OPN expression profile in tissues was significantly altered in hSPP1 compared to WT depending on the diet. In conclusion, we developed a versatile humanized model to study the action of OPN in vivo and to develop strategies that target human OPN in a variety of pathologies. Copyright © 2016. Published by Elsevier Inc.
- Find related publications in this database (using NLM MeSH Indexing)
- Adipocytes - pathology
- Adipose Tissue - pathology
- Amino Acid Sequence -
- Animals -
- Blood Glucose - metabolism
- Body Weight -
- Diet, High-Fat - adverse effects
- Disease Models, Animal -
- Gene Expression Regulation -
- Genotype -
- Homologous Recombination - genetics
- Humans -
- Hypertrophy -
- Inflammation - pathology
- Insulin Resistance -
- Liver - pathology
- Male -
- Mice, Inbred C57BL -
- Mice, Transgenic -
- Obesity - blood
- Obesity - genetics
- Obesity - immunology
- Obesity - metabolism
- Osteopontin - chemistry
- Osteopontin - genetics
- Osteopontin - metabolism