ADGRG1/GPR56 knockdown in cord blood CD34+ cells
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE150175 | GEO | 2022/02/06
REPOSITORIES: GEO
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Project description:ADGRG1/GPR56 knockdown in cord blood CD34+ cells
| PRJNA631400 | ENA
Project description:A mesenchymal transition occurs both during natural evolution of glioblastoma (GBM) and in response to therapy. However, the molecular mechanisms underlying mesenchymal differentiation are not well understood. We have found that the adhesion G protein-coupled receptor, GPR56/ADGRG1, inhibits mesenchymal differentiation and radioresistance in glioblastoma stem-like initiating cells (GICs). Here, we have performed microarray analysis of control- versus GPR56 knockdown-GICs to characterize gene expression changes upon GPR56 knockdown and identify a gene expression signature associated to GPR56.
2017-10-01 | GSE94765 | GEO
Project description:A mesenchymal transition occurs both during natural evolution of glioblastoma (GBM) and in response to therapy. However, the molecular mechanisms underlying mesenchymal differentiation are not well understood. We have found that the adhesion G protein-coupled receptor GPR56/ADGRG1 inhibits mesenchymal differentiation and radioresistance in glioblastoma stem-like initiating cells (GICs). Here, we have performed microarray analysis of parental- versus GPR56 knockout-GICs to identify gene expression changes upon GPR56 knockout
2017-10-31 | GSE104653 | GEO
Project description:We founed enhanced Gpr56/Adgrg1 mRNA expression in bone tropic mouse breast cancer cell lines, 4T1.3, grown in a bone cavity, compared with in vitro culture condition. Thus, we examined about the function of Gpr56/Adgrg1 in tumor growth of vitro culture condition with its ligand, type III collagen.
2022-08-01 | GSE154908 | GEO
Project description:G protein-coupled receptor 56 (GPR56/ADGRG1) is an adhesion GPCR with an essential role in brain development and cancer. Elevated expression of GPR56 was observed in the clinical specimens of Glioblastoma (GBM), a highly invasive primary brain tumor. However, we found the expression to be variable across the specimens, presumably due to the intratumor heterogeneity of GBM. Therefore, we re-examined GPR56 expression in public domain spatial gene expression data and single-cell expression data for GBM, which revealed that GPR56 expression was high in cellular tumors, infiltrating tumor cells, and proliferating cells, low in microvascular proliferation and peri-necrotic areas of the tumor, especially in hypoxic mesenchymal-like cells. To gain a better understanding of the consequences of GPR56 downregulation in tumor cells and other molecular changes associated with it, we generated a sh-RNA-mediated control and GPR56 knockdown in the GBM cell line U373 and performed transcriptomics, proteomics, and phospho-proteomics analysis and using the data we propose a putative model to explain this functional and regulatory relationship of the two proteins.
2022-05-04 | PXD031569 | Pride
Project description:G protein-coupled receptor 56 (GPR56/ADGRG1) is an adhesion GPCR with an essential role in brain development and cancer. Elevated expression of GPR56 was observed in the clinical specimens of Glioblastoma (GBM), a highly invasive primary brain tumor. However, we found the expression to be variable across the specimens, presumably due to the intratumor heterogeneity of GBM. Therefore, we re-examined GPR56 expression in public domain spatial gene expression data and single-cell expression data for GBM, which revealed that GPR56 expression was high in cellular tumors, infiltrating tumor cells, and proliferating cells, low in microvascular proliferation and peri-necrotic areas of the tumor, especially in hypoxic mesenchymal-like cells. To gain a better understanding of the consequences of GPR56 downregulation in tumor cells and other molecular changes associated with it, we generated a sh-RNA-mediated GPR56 knockdown in the GBM cell line U373 and performed transcriptomics, proteomics, and phospho-proteomics analysis. Our analysis revealed enrichment of gene signatures, pathways, and phosphorylation of proteins potentially associated with mesenchymal (MES) transition in the tumor and concurrent increase in cell invasion and migration behavior of the GPR56 knockdown GBM cells. Interestingly, our analysis also showed elevated expression of Transglutaminase 2 (TG2) - a known interactor of GPR56, in the knockdown cells. The inverse expression of GPR56 and TG2 was also observed in intratumoral, spatial gene expression data for GBM and in GBM cell lines cultured in vitro under hypoxic conditions. Integrating all these observations, we infer a functional link between the inverse expression of the two proteins, the hypoxic niche, and the mesenchymal status in the tumor. Hypoxia-induced downregulation of GPR56 and activation of TG2 may result in a network of molecular events that contribute to the mesenchymal transition of GBM cells, and we propose a putative model to explain this functional and regulatory relationship of the two proteins.
2022-01-25 | GSE192874 | GEO
Project description:GPR56/ADGRG1 is associated with response to antidepressant treatment
| PRJNA610594 | ENA
Project description:G-protein-coupled receptors (GPCRs) mediate most cellular responses to hormones, neurotransmitters as well as environmental stimulants. However, whether GPCRs participate in modulation of tissue homeostasis through ferroptosis remains unclear. By GPCR cDNA library screening, here we identify that GPR56/ADGRG1 remodels ferroptosis plasticity. Loss of GPR56 sensitizes cells to ferroptosis and deficiency of GPR56 deteriorates ferroptosis-mediated liver injury induced by Doxorubicin (DOX) or ischemia-reperfusion (IR). Mechanistically, GPR56 decreases the abundance of phospholipids containing free polyunsaturated fatty acids (PUFAs) by promoting endocytosis-lysosomal degradation of CD36. By screening a panel of steroid hormones, we identified that 17α-hydroxypregnenolone (17-OH PREG) acts as an agonist of GPR56 to antagonize ferroptosis and efficiently attenuates liver injury before or after insult. Moreover, disease associated GPR56 mutants were unresponsive to 17-OH PREG activation and insufficient to defend against ferroptosis. Together, our findings uncover that 17-OH PREG-GPR56 axis-mediated signal transduction works as a new anti-ferroptotic pathway to maintain liver homeostasis, providing novel insights into the potential therapy for liver injury.
2024-10-11 | PXD054855 | Pride
Project description:It remains unclear why many patients with depression do not respond to antidepressant treatment. In three cohorts of individuals with depression and treated with serotonin-norepinephrine reuptake inhibitor (N=424) we show that responders, but not non-responders, display an increase of GPR56 mRNA in the blood. In a small group of subjects we also show that GPR56 is also downregulated in the PFC of individuals with depression that died by suicide. In mice, we show that chronic stress induced Gpr56 downregulation in the blood and prefrontal cortex (PFC), which is accompanied by depression-like behaviour, and can be reversed by antidepressant treatment. Gpr56 knockdown in mouse PFC was is associated with depressive-like behaviors, executive dysfunction and poor response to antidepressant treatment. GPR56 peptide agonists had antidepressant-like effects and up-regulated AKT/GSK3/EIF4 pathways. Our findings uncover a potential role of GPR56 in antidepressant response.
2020-03-31 | GSE146446 | GEO
Project description:GPR56/ADGRG1 inhibits Mesenchymal Differentiation and Radioresistance in Glioblastoma [GIC7]
| PRJNA413406 | ENA