Expression data from mouse bone marrow derived macrophages (BMDM)
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE150519 | GEO | 2020/07/01
REPOSITORIES: GEO
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Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Global gene expression pattern of Spic+ monocytes, Spic- monocytes, and Spic high red pulp macrophages were compared by sorting these cells from Spic(igfp/+) splenocytes and performing microarray-based gene expression profiling. Splenocytes were prepared from Spic(igfp/+) mice and were first negatively selected for CD4, CD8, and B220 by MACS (Miltenyi Biotech) purification using the respective microbeads. Negatively selected splenocytes were then stained with anti-CD11b and anti-Ly6c and sorted for Spic+ monocytes (CD11b+Ly6c+Spic+) and Spic- monocytes (CD11b+Ly6c+Spic-). Purified RPM were obtained by staining splenocytes with anti-F4/80 and sorting for F4/80 hi Spic-EGFP hi cells.
2014-03-14 | E-GEOD-46984 | biostudies-arrayexpress
Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Global gene expression pattern of Spic+ monocytes, Spic- monocytes, and Spic high red pulp macrophages were compared by sorting these cells from Spic(igfp/+) splenocytes and performing microarray-based gene expression profiling.
2014-03-14 | GSE46984 | GEO
Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Global gene expression pattern of bone marrow-derived macrophages generated with GM-CSF in vitro and treated with heme were compared to those treated with vehicle at 6 hours, 24 hours, and 72 hours after treatment. GM-CSF cultures of Spic(igfp/igfp) BM cells were treated with heme (80 µm) or vehicle after 6 days in culture. Adherent fraction of cells were harvested 6 hours, 24 hours, and 72 hours after treatment and RNA was isolated using an RNeasy mini kit (Qiagen) and submitted for amplification, labeling and hybridization. Expression values were analyzed after RMA quantile normalization using ArrayStar software (DNASTAR).
2014-03-14 | E-GEOD-46983 | biostudies-arrayexpress
Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Global gene expression pattern of bone marrow-derived macrophages generated with GM-CSF in vitro and treated with heme were compared to those treated with vehicle at 6 hours, 24 hours, and 72 hours after treatment.
2014-03-14 | GSE46983 | GEO
Project description:We used microarrays to find Stat6 dependent genes in control and IL-4 exposed bone marrow derived macrophages. Alternatively activated macrophages (AAM) accumulate in tissues during Th2-associated immune responses like helminth infections and allergic disorders. These cells possess potent inhibitory activity against T cells. The differentiation of AAM depends on IL-4/IL-13-mediated activation of the transcription factor Stat6. Stat6 is also required in AAM to induce several genes, such as YM1, FIZZ1 and Arginase1. Macrophages were differentiated from bone marrow cells in supplemented RPMI 1640 for 7 days in the presence of 10% supernatant from the M-CSF producing fibroblast cell line L929. After removal of nonadherent cells, macrophages were detached using 5mM EDTA treatment, washed, counted, and replated at a density of 10x6 cells/mL. Macrophages were cultured for 24 hours in medium (control) or in the presence of IL-4 (10mg/mL). F4/80 positive macrophages were sorted with a purity of 99% and RNA was isolated (Trizol/Chloroform) according to the manufacturer's instructions. RNA was labeled (biotin), fragmented, and hybridized to the arrays according to the manufacturer's recommendations.
2010-07-19 | E-GEOD-20030 | biostudies-arrayexpress
Project description:We used microarrays to find Stat6 dependent genes in control and IL-4 exposed bone marrow derived macrophages. Alternatively activated macrophages (AAM) accumulate in tissues during Th2-associated immune responses like helminth infections and allergic disorders. These cells possess potent inhibitory activity against T cells. The differentiation of AAM depends on IL-4/IL-13-mediated activation of the transcription factor Stat6. Stat6 is also required in AAM to induce several genes, such as YM1, FIZZ1 and Arginase1.
2010-07-19 | GSE20030 | GEO
Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Bone marrow derived macrophages were generated in vitro by culturing WT and Bach1 knock out bone marrow in the presence of GM-CSF and their global gene expression pattern were compared in the presence or absence of heme at the various indicated time points after treatment. GMP and MPP populations were sorted from fetal liver chimeras and pooled by donor genotype. RNA was isolated using an RNAqueous-Micro Kit (Ambion) and submitted for amplification, labeling and hybridization. Expression values were analyzed after RMA quantile normalization using ArrayStar software (DNASTAR).
2014-03-14 | E-GEOD-53796 | biostudies-arrayexpress
Project description:The transcription factor Spic regulates genes associated with heme and iron metabolism. We used microarrays to identify genes regulated by the transcription factor Spic in patrolling monocytes.
2020-07-01 | GSE150514 | GEO
Project description:Splenic red pulp macrophages (RPM) degrade senescent erythrocytes and recycle heme-associated iron. The transcription factor Spic is selectively expressed by RPM and is required for their development, but the physiologic stimulus inducing Spic is unknown. Here, we report that Spic also regulated the development of F4/80+VCAM+ bone marrow macrophages (BMM) and that Spic expression in BMM and RPM development was induced by heme, a metabolite of erythrocyte degradation. Pathologic hemolysis induced loss of RPM and BMM due to excess heme but induced Spic in monocytes to generate new RPM and BMM. Spic expression in monocytes was constitutively inhibited by the transcriptional repressor Bach1. Heme induced proteasome-dependent BACH1 degradation and rapid Spic derepression. Further, cysteine-proline dipeptide motifs in BACH1 that mediate heme-dependent degradation were necessary for Spic induction by heme. These findings are the first example of metabolite-driven differentiation of a tissue-resident macrophage subset and provide new insight into iron homeostasis. Bone marrow derived macrophages were generated in vitro by culturing WT and Bach1 knock out bone marrow in the presence of GM-CSF and their global gene expression pattern were compared in the presence or absence of heme at the various indicated time points after treatment.
2014-03-14 | GSE53796 | GEO
Project description:Previous ATAC-seq analysis revealed changes in bone marrow HSC chromatin structure and transcription factor binding site accessibility. Here, we use ATAC-seq analyses on bone marrow derived macrophages to characterise whether HSC chromatin changes are long-lasting, and differences persist in diabetic macrophages, after glucose normalisation, and helps to drive pro-inflammatory gene expression and function.
2018-12-30 | GSE124298 | GEO