Search results for "GROWTH ARREST"

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Macrophage MerTK promotes profibrogenic cross-talk with hepatic stellate cells via soluble mediators

2022

Background & aims: Activation of Kupffer cells and recruitment of monocytes are key events in fibrogenesis. These cells release soluble mediators which induce the activation of hepatic stellate cells (HSCs), the main fibrogenic cell type within the liver. Mer tyrosine kinase (MerTK) signaling regulates multiple processes in macrophages and has been implicated in the pathogenesis of non-alcoholic steatohepatitis-related fibrosis. In this study, we explored if MerTK activation in macrophages influences the profibrogenic phenotype of HSCs. Methods: Macrophages were derived from THP-1 cells or differentiated from peripheral blood monocytes towards MerTK+/CD206+/CD163+/CD209- macrophages. Th…

HepatologyCM conditioned medium ECM extracellular matrix Gas-6 Gas-6 growth arrest-specific gene 6 HSC(s) hepatic stellate cells KC(s) Kupffer cell(s) M-CSF macrophage colony-stimulating factor M2c-like macrophages MerTK Myeloid-epithelial-reproductive tyrosine kinase NAFLD non-alcoholic fatty liver disease NASH NASH non-alcoholic steatohepatitis PMA phorbol 12-myristate 13-acetate TGFβ1 transforming growth factor-β1 THP-1 TIMP1 tissue inhibitor of metalloproteinase 1 VEGF-A vascular endothelial growth factor-A liver fibrosis siRNA small-interfering RNAGas-6; liver fibrosis; M2c-like macrophages; NASH; THP-1GastroenterologyInternal MedicineImmunology and AllergyJHEP Reports
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Cell-cycle control in cell-biomaterial interactions

2000

Current biocompatibility testing involves the demonstration of cell proliferation, which is usually interpreted as a sign of positive biocompatibility when the materials sustain cell proliferation. As the field of biomaterials research is rapidly moving toward tissue-engineered devices and hybrid organs, control of cell function has become a main topic. Cell function, which involves specific differentiation pathways, cannot be separated from cell-cycle control. The study of cell-cycle control is an important extension of routine proliferation assays and has extensive roots in developmental and tumor biology. We studied the expression of the tumour suppressor gene p53 and the proliferation-a…

p53BiocompatibilityBiomedical EngineeringFOCAL ADHESION KINASEHUMAN BONEPROTEINBiologyFlow cytometryBiomaterialsFocal adhesionbiomaterials testing methodsmedicineKI-67BREAST-CANCERmedicine.diagnostic_testCell growthINDUCTIONPROLIFERATIONBiomaterialCell cycleCell biologyAPOPTOSISEndothelial stem cellFibronectinDNA-DAMAGEImmunologybiology.proteinendothelial cellcell cycleGROWTH ARRESTJournal of Biomedical Materials Research
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