Search results for " TIMP1"

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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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Recapitulating thyroid cancer histotypes through engineering embryonic stem cells

2023

AbstractThyroid carcinoma (TC) is the most common malignancy of endocrine organs. The cell subpopulation in the lineage hierarchy that serves as cell of origin for the different TC histotypes is unknown. Human embryonic stem cells (hESCs) with appropriate in vitro stimulation undergo sequential differentiation into thyroid progenitor cells (TPCs-day 22), which maturate into thyrocytes (day 30). Here, we create follicular cell-derived TCs of all the different histotypes based on specific genomic alterations delivered by CRISPR-Cas9 in hESC-derived TPCs. Specifically, TPCs harboring BRAFV600E or NRASQ61R mutations generate papillary or follicular TC, respectively, whereas addition of TP53R248…

MultidisciplinaryGeneral Physics and AstronomyGeneral ChemistryGeneral Biochemistry Genetics and Molecular BiologyThyroid cancer thyroid progenitor cells genetic mutation model CD44 TIMP1 KISS1 KISS1R.
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