RNA sequencing from the microglia of mice with acute GvHD against syngeneic bone marrow transplanted and untreated controls
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ABSTRACT:
PROVIDER: PRJNA594334 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR10611669_1.fastq.gz | Fastqsanger.gz | |||
| SRR10611669_2.fastq.gz | Fastqsanger.gz | |||
| SRR10611670_1.fastq.gz | Fastqsanger.gz | |||
| SRR10611670_2.fastq.gz | Fastqsanger.gz | |||
| SRR10611671_1.fastq.gz | Fastqsanger.gz |
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2011-04-13 | E-GEOD-28545 | biostudies-arrayexpress
Project description:Inducible co-stimulator (ICOS) interaction with its ligand (ICOSL) is involved in several T cell effector functions. While blockade of ICOS:ICOSL interaction in chronic graft versus host disease (GVHD) seems benefi cial, results for acute GVHD remain controversial. To further elucidate its role in acute GVHD, C57BL / 6 mice were lethally irradiated and reconstituted with allogeneic spleen cells in the absence or presence of ICOSL-blocking mAb. Mice reconstituted with allogeneic spleen cells experienced severe GVHD and died untreated within 6 M-bM-^@M-^S 9 days after transplantation. Mice treated with an anti-ICOSL mAb starting from day 3 after transplantation gained weight again and survived for at least additional 12 days, although the treatment was already stopped at day 11 after transplantation. In contrast, the anti-ICOSL treatment starting from day 0 did not prevent GVHD. The diff erence between therapeutic (day 3) and prophylactic (day 0) anti-ICOSL treatment was independent of CD25 + CD4 + regulatory T cells since their depletion did not abrogate the therapeutic eff ect of ICOSL blockade. Microarray analysis revealed IFN- M-NM-3 and chemokine up-regulation in spleen cells of prophylactically treated mice, emphasizing kinetic dependence of acute GVHD modulation via blockade of ICOS:ICOSL interaction. B6 recipients were irradiated with 10.0 Gray, administered from a 137 Cs source. Splenocytes from C3H mice were prepared as single cell suspensions in PBS, depleted of red blood cells and counted. 2 M-bM-^@M-^S 3 M-CM-^W 10^7 C3H splenocytes in a volume of 200 M-NM-<l were transplanted into B6 recipients via tail vein injection (4 mice per group per experiment) 4 M-bM-^@M-^S 6 h after irradiation. Mice in the treatment group with anti-ICOSL mAb and their respective controls, received 500 M-NM-<g mAb i. p starting at day 0 or day 3, followed by subsequent injections of 200 M-NM-<g of mAb every other day. At day 4 after transplantation RNA of spleen cells was prepared and subjected to microarray analysis. Combined RNA from allogeneic transplanted mice was hybridized onto 2 independent arrays.
2009-09-14 | E-GEOD-17995 | biostudies-arrayexpress
Project description:Our studies have shown that CD44hiCD62LloPSGL-1loCD4+ T (PSGL-1loCD4+ T) cells play an important role in chronic GVHD pathogenesis (R. Deng et al: Nature Communications 2017). Thus, PSGL-1loCD4+ T cells were sorted from spleen of chronic GVHD BALB/c recipient mice transplanted with spleen cells and T cell-depleted bone marrow (TCD-BM) cells from C57BL/6 donor mice. The control no GVHD BALB/c recipient mice were transplanted with C57BL/6 donor TCD-BM only. 21 days after transplantation, PSGL-1loCD4+ T cells from spleen of chronic GVHD and control mice were sorted and subjected to RNA-seq analysis.
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Project description:We used single-cell RNA sequencing (scRNA-seq) to analyze the diversity of bone marrow-derived CD45+CD11b+ microglia-like cells (MGLCs) engrafted in the brain of recipient mice that were conditioned using Busulfan and PLX3397 and transplanted with total bone marrow. We compared the gene expression of MGLCs to that of developmentally-derived CD45+ CD11b+ microglia/myeloid cells isolated from the brain of recipient mice (host microglia) and untreated mice (naive microglia). We also compared the gene expression of MGLCs to that of transplant-derived CD45+ CD11b+ cells engrafted in the bone marrow (abbreviated as BM-CD11b+)
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Project description:We used single-cell RNA sequencing (scRNA-seq) to analyze the diversity of HSPC-derived CD45+CD11b+ microglia-like cells (MGLCs) engrafted in the brain of recipient mice that were conditioned using Busulfan and PLX3397 and transplanted intravenous with Lineage negative KIT+ SCA1+ mouse HSPCs. The HSPCs were isolated from adult C57BL/6-Tg(CAG-EGFP)131Osb/LeySopJ homozygous mice. We compared the gene expression of MGLCs to that of developmentally-derived CD45+ CD11b+ microglia/myeloid cells isolated from the brain of recipient mice (host microglia) and untreated mice (naive microglia). We also compared the gene expression of MGLCs to that of transplant-derived CD45+ CD11b+ cells engrafted in the bone marrow (abbreviated as BM-CD11b+)
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Project description:Given T-bet is a master regulator for Th1 differentiation that produce IFN-gamma, underlining mechanisms accounted for the distinct GVHD outcomes caused by T-bet- versus IFN-gamma-deficient donor T cells are unclear. We hypothesize that GVHD is regulated by T-bet-dependent but IFN-gamma-independent molecules. To identify these molecules, we isolated donor T cells from spleen cells of the recipients that were transplanted with WT, T-bet-/- or IFN-gamma-/- CD4 T cells for 7 days. The gene profile of isolated T cells was measured by microarray analysis using GeneChip Mouse Genome 430 2.0 arrays (Affymetrix) according to the manufacturerM-^Rs instructions. Array images were analyzed and processed by robust multi-array average (RMA) procedure.
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Project description:Inducible co-stimulator (ICOS) interaction with its ligand (ICOSL) is involved in several T cell effector functions. While blockade of ICOS:ICOSL interaction in chronic graft versus host disease (GVHD) seems benefi cial, results for acute GVHD remain controversial. To further elucidate its role in acute GVHD, C57BL / 6 mice were lethally irradiated and reconstituted with allogeneic spleen cells in the absence or presence of ICOSL-blocking mAb. Mice reconstituted with allogeneic spleen cells experienced severe GVHD and died untreated within 6 – 9 days after transplantation. Mice treated with an anti-ICOSL mAb starting from day 3 after transplantation gained weight again and survived for at least additional 12 days, although the treatment was already stopped at day 11 after transplantation. In contrast, the anti-ICOSL treatment starting from day 0 did not prevent GVHD. The diff erence between therapeutic (day 3) and prophylactic (day 0) anti-ICOSL treatment was independent of CD25 + CD4 + regulatory T cells since their depletion did not abrogate the therapeutic eff ect of ICOSL blockade. Microarray analysis revealed IFN- γ and chemokine up-regulation in spleen cells of prophylactically treated mice, emphasizing kinetic dependence of acute GVHD modulation via blockade of ICOS:ICOSL interaction.
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Project description:Expression profiling of rat major histocompatibility complex and natural killer complex genes in skin explant assays reveals genes that are regulated in graft versus host disease. The major histocompatibility complex (MHC) is the most important genomic region that contributes to the genetic risk of graft rejection and graft versus host disease (GVHD) after haematopoietic stem cell transplantation. Therefore, MHC matching is most essential for the success of clinical transplantations. However, the MHC contains in addition to MHC class I and class II genes that are genotyped for selection of donors further so far unidentified genes that also contribute significantly to the risk to develop acute GVHD. It is difficult to identify these MHC genes by genetic association studies alone due to linkage disequilibrium in this region. Therefore, we aimed to identify MHC genes that might be involved in the pathohysiology of GVHD by expression profiling. To reduce the complexity of our model, we used genetically well-defined inbred rat strains (PVG and BN) and skin explant assays, an in-vitro-model of graft versus host reaction (GVHR), to analyse the expression of MHC and natural killer complex (NKC) genes in a cutaneous GVHR by a custom microarray. A higher percentage of genes in these immunologically highly important genomic regions were regulated than in the rest of the genome. We observed a statistically significant regulation of 25 MHC and 6 NKC genes and 168 other genes (i.e., 4.9%, 14.0%, and 6.6%, respectively) in rat skin explants cultured in the presence of pre-stimulated allogeneic lymphocytes compared to control samples cultured in the presence of syngeneic lymphocytes. Seven MHC and 3 NKC genes were selected for analysis by quantitative real-time polymerase chain reaction PCR. Most of the results of the microarray were confirmed in the same experimental set that was used for the microarray analysis and in a second independent experimental set of skin explant samples. In addition, GVHD-affected skin lesions of transplanted rats were analysed and similar regulations of most of the selected MHC and NKC genes were observed. Thus, our skin explant model of GVHR is informative for the gene regulation during GVHD. Interestingly, the human homologues of several of the regulated genes are polymorphic and could therefore contribute to the genetic risk of GVHD. These genes include RT1-Dmb, C2, Aif1, Spr1, Ubd, and Olr1. The human homologues of these genes might be useful for risk assessment and diagnosis of GVHD in patients. Two-condition experiment, Stimulated vs. NonSimulated cells. 12 Biological replicates, 2 Technical Replicates (Dye Swap) per Biological Replicate.
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