Differential expression of genes associated with inflammation in KC (Kupffer cells) and MNCs (blood monocytes):
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PROVIDER: PRJNA633904 | ENA |
REPOSITORIES: ENA
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Project description:microRNA profiles in KC (Kupffer cells) and MNCs (blood monocytes):
| PRJNA633666 | ENA
Project description:As a rule, mammalian organs contain a mixed population of macrophages from different sources of origin. It is assumed that the self-sustaining resident macrophages and the monocyte-derived transient macrophages differ by their functional properties and their roles in repair processes . The analysis of the functional features of different populations of macrophages is of significant practical importance, since macrophages are considered as therapeutic targets in various pathological conditions and as prospective basis for cell therapy products. The aim of this study was to compare gene expression profiles of the two alternative macrophage species exemplified, respectively, by Kupffer cells of the liver and monocytes of the blood.
2020-05-20 | GSE150878 | GEO
Project description:As a rule, mammalian organs contain a mixed population of macrophages from different sources of origin. It is assumed that the self-sustaining resident macrophages and the monocyte-derived transient macrophages differ by their functional properties and their roles in repair processes . The analysis of the functional features of different populations of macrophages is of significant practical importance, since macrophages are considered as therapeutic targets in various pathological conditions and as prospective basis for cell therapy products. The aim of this study was to compare microRNA profiles of the two alternative macrophage species exemplified, respectively, by Kupffer cells of the liver and monocytes of the blood.
2020-05-19 | GSE150808 | GEO
Project description:Self-renewing tissue-resident macrophages are thought to be exclusively derived from embryonic progenitors. However, whether circulating monocytes can also give rise to such macrophages has not been formally investigated. Here we use a new model of diphtheria toxin-mediated depletion of liver-resident Kupffer cells to generate niche availability and show that circulating monocytes engrafted in the liver, gradually adopt the transcriptional profile of their depleted counterparts and become long-lived self-renewing cells. Underlining the physiological relevance of our findings, circulating monocytes also contribute to the expanding pool of macrophages in the liver shortly after birth, when macrophage niches become available during normal organ growth. Thus, like embryonic precursors, monocytes can and do give rise to self-renewing tissue-resident macrophages if the niche is available to them. Clec4F+ Kupffer cells were isolated and sorted from livers from adult WT mice or KC-DTR or KC-DTR littermate control mice +/- 50ng DT at indicated timepoints. 19 samples (arrays) in total. RNA was isolated, amplified with Nugene pico kit, converted to cDNA and then hybridised on Affymetrix GeneChip Mouse Gene 1.0 ST Arrays.
2015-11-21 | E-GEOD-75225 | biostudies-arrayexpress
Project description:To incorporate Kupffer cells into hiPSC-LOs, we differentiated erythro-myeloid progenitors (EMPs) from hiPSCs. We compares the gene expression profiles of hiPSC-EMPs with cord-blood hematopoietic stem and progenitor cells (CB-HSPCs); and EMP-generated Kupffer cells (EMP-KC) with human primary Kupffer cells.
2024-03-01 | GSE233538 | GEO
Project description:Differential expression of genes associated with inflammation in KC (Kupffer cells) after partial hepatoctomy
| PRJNA667933 | ENA
Project description:microRNA profiles in KC (Kupffer cells) after partial hepatoctomy
| PRJNA667934 | ENA
Project description:Macrophage population in most mammalian organs consists of cells of different origin, with the exception of the central nervous system and the liver, where macrophages of monocytic origin are almost completely absent. The reasons for such distribution and the phenomenon of coexistence of the two separate macrophage lineages with different origin in mammals remain poorly understood. In present study we compared Kupffer cells and monocytes by the immunophenotype, gene expression profile, proteome and pool of mircoRNA. Observed differences do not allow to consider the resident liver macrophages as purely M2 macrophages or monocytes have purely M1 features. Two populations of macrophages of monocytic origin and resident macrophages have fundamentally different roles in maintaining homeostasis. Monocytic macrophages are involved in the regulation of inflammation, and resident macrophages are involved in the regulation of specific organ functions (nitrogen metabolism, complement system protein synthesis). However, if other indicators would be considered as markers of macrophage activity, it is worth noting that Kupffer cells possess some features of M2 macrophages. This is indicated by their expression profile of let-7b/c/d/e miRNAs, a high content of proteins associated with oxidative phosphorylation, as well as an increased level of synthesis of Arg1, IL10.
2021-09-09 | PXD018586 | Pride
Project description:Molecular profiling of infiltrating monocyte-derived macrophages versus resident kupffer cells following acute liver injury The liver has a remarkable capacity to regenerate after injury; yet, the role of macrophages (MF) in this process remains controversial mainly due to difficulties in distinguishing between different MF-subsets. Here, we utilized a murine model of acute liver injury caused by overdose of acetaminophen (APAP) and defined three distinct MF subsets that populate the liver following injury. Accordingly, resident Kupffer cells (KC) were significantly reduced upon APAP-challenge and started recovering by self-renewal at resolution phase without contribution of circulating Ly6Chi monocytes. The latter were recruited in a CCR2 and M-CSF mediated pathway at the necro-inflammatory phase and differentiated into ephemeral Ly6Clo MF subset at resolution phase. Moreover, their inducible ablation resulted in impaired recovery. Microarray based molecular profiling uncovered high similarity between steady state KC and those recovered at the resolution phase. In contrast, KC and monocyte-derived MF displayed distinct pro-restorative genetic signature at the resolution phase. Finally, we show that infiltrating monocytes acquire a pro-restorative polarization manifested by unique expression of pro-angiogenesis mediators and genes involved with inhibition of neutrophil activity and recruitment and promotion of their clearance. Collectively, our results present a novel phenotypic, ontogenic and molecular definition of liver-MF compartment following acute injury. 11 Samples (arrays) were performed. We generated pairwise comparison between all the different macrophages stages, using Partek Genomics Suite. Genes with p?5%[FDR] and a fold-change difference of ?2 or <-2 were selected.
2014-08-01 | E-GEOD-55606 | biostudies-arrayexpress
Project description:Kupffer cells (KCs) self-renew by local proliferation in the adult independently from monocytes (Mos). However, how they maintain during chronic metabolic disorders such as non-alcoholic steatohepatitis (NASH) remains ill-defined. We characterized KCs during NASH and observed diversity in the KC pool, with a significant fraction of monocyte-derived KCs (MoKCs). Here, we aim to uncover the transcriptional landscapes of KCs subsets found in a mouse model of methionine and choline deficient (MCD)-diet induced non-alcoholic steatohepatitis (NASH).
2020-12-04 | GSE138778 | GEO