AI Article Synopsis
Article Abstract
The EP4 (prostaglandin E2) receptor plays a crucial role in myogenesis and skeletal muscle regeneration, yet its involvement in regulating insulin-dependent metabolic pathways is not well characterised. Our research investigates the expression of EP4 in rat skeletal L6 myotubes and its impact on insulin signalling. We found that activation of EP4 by selective agonists disrupts insulin signalling and insulin-stimulated glucose uptake. This impairment is associated with enhanced pro-inflammatory NF-κB signalling, a process that can be attenuated by EP4 antagonists. Importantly, EP4 antagonism also reduces NF-κB activation induced by palmitate and the associated reduction in insulin signalling, an effect not replicated by antagonists of EP1, EP2, or EP3 receptors. These observations indicate that the EP4 receptor is a modulator of insulin action and that it contributes to fatty-acid-induced insulin resistance in skeletal muscle cells. Our findings suggest that EP4 could be a potential therapeutic target for managing insulin resistance.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.cellsig.2024.111516 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring the effect and mechanism of action of Jinlida granules (JLD) in the treatment of diabetes-associated cognitive impairment based on network pharmacology with experimental validation.
Ann Med
December 2025
Department of Hebei Provincial Key Laboratory of Basic Medicine for Diabetes, The Shijiazhuang Second Hospital, Shijiazhuang, China.
Objectives: To explore the effect and the probable mechanisms of JLD in the treatment of type 2 diabetes mellitus (T2DM) - associated cognitive impairment (TDACI).
Methods: The effect of JLD in combating TDACI was assessed in T2DM model mice by conducting Morris water maze (MWM) behaviour testing. Active components and their putative targets, as well as TDACI-related targets, were collected from public databases.
TLR4 Targeting: A Promising Therapeutic Approach Across Multiple Human Diseases.
Curr Protein Pept Sci
December 2024
Department of Pharmacy, Galgotias University, Greater Noida, Uttar Pradesh 201310, India.
TLR4 stands at the forefront of innate immune responses, recognizing various pathogen- associated molecular patterns and endogenous ligands, thus serving as a pivotal mediator in the immune system's defense against infections and tissue damage. Beyond its canonical role in infection, emerging evidence highlights TLR4's involvement in numerous non-infectious human diseases, ranging from metabolic disorders to neurodegenerative conditions and cancer. Targeting TLR4 signaling pathways presents a promising therapeutic approach with broad applicability across these diverse pathological states.
View Article and Find Full Text PDFEmploying splice-switching oligonucleotides and AAVrh74.U7 snRNA to target insulin receptor splicing and cancer hallmarks in osteosarcoma.
Mol Ther Oncol
December 2024
Center for Childhood Cancer Research, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
Patients with osteosarcoma (OS), a debilitating pediatric bone malignancy, have limited treatment options to combat aggressive disease. OS thrives on insulin growth factor (IGF)-mediated signaling that can facilitate cell proliferation. Previous efforts to target IGF-1R signaling were mostly unsuccessful, likely due to compensatory signaling through alternative splicing of the insulin receptor () to the proliferative isoform.
View Article and Find Full Text PDFBile acids as a key target: traditional Chinese medicine for precision management of insulin resistance in type 2 diabetes mellitus through the gut microbiota-bile acids axis.
Front Endocrinol (Lausanne)
December 2024
Shenzhen Hospital (Futian), Guangzhou University of Chinese Medicine, Shenzhen, China.
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease caused by insulin resistance (IR) and insufficient insulin secretion. Its characteristic pathophysiological processes involve the interaction of multiple mechanisms. In recent years, globally, the prevalence of T2DM has shown a sharp rise due to profound changes in socio-economic structure, the persistent influence of environmental factors, and the complex role of genetic background.
View Article and Find Full Text PDFGeneration of vascularized pancreatic progenitors through co-differentiation of endoderm and mesoderm from human pluripotent stem cells.
Stem Cell Res Ther
December 2024
Department of Central Laboratory, Shenzhen Hospital, Beijing University of Chinese Medicine, Shenzhen, Guangdong, China.
Background: The simultaneous differentiation of human pluripotent stem cells (hPSCs) into both endodermal and mesodermal lineages is crucial for developing complex, vascularized tissues, yet poses significant challenges. This study explores a method for co-differentiation of mesoderm and endoderm, and their subsequent differentiation into pancreatic progenitors (PP) with endothelial cells (EC).
Methods: Two hPSC lines were utilized.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!