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Histone profiling of monocyte-derived macrophages (MDM)

ABSTRACT: Histone profiling of monocyte-derived macrophages (MDM)

PROVIDER: PRJNA925919 | ENA |

REPOSITORIES: ENA

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Glucose-driven histone lactylation promotes the immunosuppressive activity of monocyte-derived macrophages in glioblastoma

Project description:Macrophages are critical components of the immunosuppressive microenvironment that restrict anti-cancer immunity in glioblastoma (GBM). However, how GBM shapes the regulatory function of macrophages remains elusive. Here, we report that monocyte-derived macrophages (MDM), but not yolk-sac derived microglia (MG), exhibited potent immunosuppressive activity, which was mediated by a population of glycolytic GLUT1+MDM, in an IL10-dependent manner. GBM-derived factors reprogrammed MDM towards glycolytic cells with enhanced avidity for glucose, which was mostly used to generate lactate. In turn, intracellular lactate caused lactylation of histone lysine residues that promoted MDM immunosuppressive activity via regulation of Il10 expression. GBM-primed activation of PERK supported glucose metabolism and regulated GLUT1 expression through ATF4 in MDM. PERK-deletion in MDM abrogated histone lactylation and suppressive activity, thereby promoting polyfunctional T cell-infiltration of tumors. In combination with immunotherapy, PERK-deletion blocked GBM progression. Our study demonstrates that glucose-driven histone lactylation controls MDM immunosuppressive function; all in a PERK-dependent manner.

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Glucose-driven histone lactylation promotes the immunosuppressive activity of monocyte-derived macrophages in brain tumors [RNA-seq]

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Monocyte-derived Macrophages

Project description:Monocyte-derived Macrophages

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RNA-seq of human monocyte-derived macrophages comparing healthy versus house dust mite-allergic donors

Project description:Human monocyte-derived macrophages (MDM) from HDM-allergic donors were compared to MDM from healthy donors. CD14+ monocytes were isolated from donated blood and differentiated in the presence of GM-CSF and TGFb (alveolar-like MDM) for 7 days before havest of RNA

2021-12-31 | E-MTAB-9215 | biostudies-arrayexpress

RNA-seq analysis of miRNAs expression in chciken ALV-J-infected primary monocyte-derived macrophages (MDM) and uninfected control.

Project description:Purpose: The goals of this study are to investigate the differentially expressed miRNAs between ALV-J-infected primary monocyte-derived macrophages (MDM) and uninfected control by Illumina deep sequencing. Methods:Total RNA from two ALV-J-infected MDM (designated: J3h_1, J3h_2, J36h_1 and J36h_2) and two uninfected MDM samples (designated: NC3h_1, NC3h_2, NC36h_1 and NC36h_2) was isolated by TRIzol following the manufacturer’s instruction at 3 h post infection (hpi) and 36 hpi. RNA samples of two individuals within each group were pooled with equal amounts, and then were subjected to Illumina deep sequencing by Illumina Hiseq 2000. Results: compared to the uninfected MDM, we identified 13 significant up-regulated miRNAs and 2 significant down-regulated miRNAs in ALV-J infected MDM at 3 hpi, and 6 significant up-regulated miRNAs and 2 significant down-regulated miRNAs in ALV-J infected MDM at 36 hpi. Conclusions: Our results suggest that DE miRNAs involved in the immune response induced by ALV-J infection in MDM at 3 hpi. In addition, only 25 miRNAs-target DEGs were identified in MDM with ALV-J infection at 36 hpi, and these target DEGs can’t be significantly enriched in any GO terms and KEGG pathway..

2017-08-29 | GSE103206 | GEO

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2016-06-10 | E-GEOD-81327 | biostudies-arrayexpress

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