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• W3195359588 endingPage "101317" @default.
• W3195359588 startingPage "101317" @default.
• W3195359588 abstract "Homo- or heterodimerization of G protein–coupled receptors (GPCRs) generally alters the normal functioning of these receptors and mediates their responses to a variety of physiological stimuli in vivo. It is well known that melanocortin-3 receptor (MC3R) and melanocortin-4 receptor (MC4R) are key regulators of appetite and energy homeostasis in the central nervous system (CNS). However, the GPCR partners of MC3R and MC4R are not well understood. Our objective is to analyze single cell RNA-seq datasets of the hypothalamus to explore and identify novel GPCR partners of MC3R and MC4R and examine the pharmacological effect on the downstream signal transduction and membrane translocation of melanocortin receptors. We conducted an integrative analysis of multiple single cell RNA-seq datasets to reveal the expression pattern and correlation of GPCR families in the mouse hypothalamus. The emerging GPCRs with important metabolic functions were selected for cloning and co-immunoprecipitation validation. The positive GPCR partners were then tested for the pharmacological activation, competitive binding assay and surface translocation ELISA experiments. Based on the expression pattern of GPCRs and their function enrichment results, we narrowed down the range of potential GPCR interaction with MC3R and MC4R for further confirmation. Co-immunoprecipitation assay verified 23 and 32 novel GPCR partners that interacted with MC3R and MC4R in vitro. The presence of these GPCR partners exhibited different effects in the physiological regulation and signal transduction of MC3R and MC4R. This work represented the first large-scale screen for the functional GPCR complex of central melanocortin receptors and defined a composite metabolic regulatory GPCR network of the hypothalamic nucleuses." @default.
• W3195359588 created "2021-08-30" @default.
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• W3195359588 date "2021-11-01" @default.
• W3195359588 modified "2023-10-16" @default.
• W3195359588 title "Identification of novel GPCR partners of the central melanocortin signaling" @default.
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• W3195359588 doi "https://doi.org/10.1016/j.molmet.2021.101317" @default.
• W3195359588 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8458986" @default.
• W3195359588 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34400348" @default.
• W3195359588 hasPublicationYear "2021" @default.
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