ArticleInflammation2011
Palmitate enhances protein tyrosine phosphatase 1B (PTP1B) gene expression at transcriptional level in C2C12 skeletal muscle cells.
Article in Inflammation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 23 citations in OpenAlex.
- Viscosol Treatment Ameliorates Insulin-Mediated Regulation of Dyslipidemia, Hepatic Steatosis, and Lipid Metabolism by Targeting PTP1B in Type-2 Diabetic Mice Model.International journal of endocrinology · 2024Article
- The role of protein tyrosine phosphatase 1B (PTP1B) in the pathogenesis of type 2 diabetes mellitus and its complications.Journal of physiology and biochemistry · 2022Review
- Inhibition of Protein-tyrosine Phosphatase PTP1B and LMPTP Promotes Palmitate/Oleate-challenged HepG2 Cell Survival by Reducing Lipoapoptosis, Improving Mitochondrial Dynamics and Mitigating Oxidative and Endoplasmic Reticulum Stress.Journal of clinical medicine · 2020Article
- Article
- Modulation of cellular insulin signaling and PTP1B effects by lipid metabolites in skeletal muscle cells.The Journal of nutritional biochemistry · 2013Article
- Endoplasmic reticulum stress upregulates protein tyrosine phosphatase 1B and impairs glucose uptake in cultured myotubes.Diabetologia · 2013Article
- Protein tyrosine phosphatase 1B (PTP1B) modulates palmitate-induced cytokine production in macrophage cells.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2013Article
- Skeletal muscle protein tyrosine phosphatase 1B regulates insulin sensitivity in African Americans.Diabetes · 2012Article
- Bioactives of Artemisia dracunculus L. mitigate the role of ceramides in attenuating insulin signaling in rat skeletal muscle cells.Diabetes · 2012Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The factors responsible for regulating PTP1B expression in certain metabolic states have been unclear. We investigated the effects of palmitate on PTP1B gene transcription in C2C12 myotubes and myotubes co-cultured with J774A.1 macrophages. PTP1B mRNA and promoter activity levels were measured in C2C12 myotubes and direct or indirect co-culture of myotubes with macrophages using real time PCR and luciferase activity, respectively. Palmitate significantly induced PTP1B mRNA and promoter activity levels 1.36- and 1.32-fold, respectively, in C2C12 cells compared with the untreated myotubes. Palmitate showed a 2.3-fold increase in PTP1B mRNA level in myotubes co-cultured indirectly with macrophages. PTP1B promoter activity was also significantly induced by palmitate in direct (1.8-fold) and indirect (1.48-fold) co-culture of myotubes with macrophages. These data suggest that while palmitate treatment significantly induced PTP1B expression at the transcriptional level, the presence of an inflammatory process exerted by macrophages can augment this effect in the muscle cells.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.