Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA388105 | ENA |
REPOSITORIES: ENA
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Project description:Macrophages are sentinels of the immune system and THP1 monocytic cells are one of the widely used models to study immune responses in macrophages. Several monocyte-to-macrophage differentiation protocols exist with phorbol 12-myristate-13-acetate (PMA) being widely used and accepted. However, the concentrations and durations of PMA treatment to induce differentiation varies widely in published literature. In this study, we determined the proteome expression dynamics of THP1 macrophages differentiated from monocytes by three commonly used PMA-based differentiation protocols using dimethyl labeling-based quantitative proteomics analysis. Our analysis shows that variations in PMA concentration and varying periods of rest post-stimulation result in downstream differences in proteome expression and cellular processes. We demonstrate that these differences result in altered expression of cytokines upon stimulation with different TLR ligands. Together, these findings provide a valuable resource that significantly expands the knowledge of protein expression dynamics in in vitro models of macrophages which in turn has profound impact on the immune responses being studied.
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Project description:THP-1 monocytes were differentiated, via PMA treatment, to macrophages. THP-1 macrophages were then treated with a mixed-oxysterol treatment (7-ketocholesterol and 7beta-hydroxycholesterol) for 24 hours. The mixed-oxysterol treatment was mixed to a ratio that represents the cytotoxic oxysterol content of human atherosclerotic plaque. Control and treated macrophages were analysed using both 2-DE with peptide mass-fingerprinting and tandem-mass spectrometry.
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Project description:The data is supplementary to the RNA-seq analysis of LPS and palmitate stimulation of THP-1 macrophages (E-MTAB-6064), where palmitate for the cell treatment was dissolved in sodium hydroxide and coupled with BSA at a molar ratio 7.5:1. Here we stimulated THP-1 macrophages with the corresponding concentration of BSA (4%) and NaOH (0.4 mM) in the presence of 10 nM phorbol 12-myristate 13-acetate (PMA) for 24 hours added to the standard RPMI 1640 medium with 10% fetal bovine serum (FBS) to estimate the effects and compared them with unstimulated THP-1 macrophages cultured in RPMI 1640 medium with 10% FBS and 10nM PMA.
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Project description:The time-series gene expression data in PMA stimulated THP-1
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