Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA184851 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:MicroRNA regulate immunological pathways in T-cells in immune thrombocytopenia (ITP) [miRNA]
| PRJNA184852 | ENA
Project description:MicroRNA regulate immunological pathways in T-cells in immune thrombocytopenia (ITP)
| PRJNA184850 | ENA
Project description:MicroRNA are small non-coding RNA molecules that regulate gene expression. To investigate the role of microRNA in ITP, we performed genome-wide expression analyses of mRNA and microRNA in T-cells from ITP patients and controls. We identified 1,915 regulated genes and 22 regulated microRNA that differed between ITP patients and controls. Seventeen of the 22 regulated microRNA were linked to changes in target gene expression; 57 of these target genes were associated with the immune system, e.g. T-cell activation and regulation of immunoglobulin production. CXCL13 and IL-21 were two microRNA target genes significantly increased in ITP. We could demonstrate increased plasma levels of CXCL13 and others have reported increased plasma levels of IL-21 in ITP. Thus, regulated microRNA were significantly associated with both gene and protein expression of molecules in immunological pathways. We suggest that microRNA may be important regulatory molecules involved in the loss of tolerance in ITP. Microarray expression analysis of mRNA and miRNA in peripheral blood T-cell of control and ITP patients.
2013-01-22 | E-GEOD-43178 | biostudies-arrayexpress
Project description:MicroRNA are small non-coding RNA molecules that regulate gene expression. To investigate the role of microRNA in ITP, we performed genome-wide expression analyses of mRNA and microRNA in T-cells from ITP patients and controls. We identified 1,915 regulated genes and 22 regulated microRNA that differed between ITP patients and controls. Seventeen of the 22 regulated microRNA were linked to changes in target gene expression; 57 of these target genes were associated with the immune system, e.g. T-cell activation and regulation of immunoglobulin production. CXCL13 and IL-21 were two microRNA target genes significantly increased in ITP. We could demonstrate increased plasma levels of CXCL13 and others have reported increased plasma levels of IL-21 in ITP. Thus, regulated microRNA were significantly associated with both gene and protein expression of molecules in immunological pathways. We suggest that microRNA may be important regulatory molecules involved in the loss of tolerance in ITP. Microarray expression analysis of mRNA and miRNA in peripheral blood T-cell of control and ITP patients.
2013-01-22 | E-GEOD-43177 | biostudies-arrayexpress
Project description:MicroRNA are small non-coding RNA molecules that regulate gene expression. To investigate the role of microRNA in ITP, we performed genome-wide expression analyses of mRNA and microRNA in T-cells from ITP patients and controls. We identified 1,915 regulated genes and 22 regulated microRNA that differed between ITP patients and controls. Seventeen of the 22 regulated microRNA were linked to changes in target gene expression; 57 of these target genes were associated with the immune system, e.g. T-cell activation and regulation of immunoglobulin production. CXCL13 and IL-21 were two microRNA target genes significantly increased in ITP. We could demonstrate increased plasma levels of CXCL13 and others have reported increased plasma levels of IL-21 in ITP. Thus, regulated microRNA were significantly associated with both gene and protein expression of molecules in immunological pathways. We suggest that microRNA may be important regulatory molecules involved in the loss of tolerance in ITP.
2013-01-22 | GSE43178 | GEO
Project description:MicroRNA are small non-coding RNA molecules that regulate gene expression. To investigate the role of microRNA in ITP, we performed genome-wide expression analyses of mRNA and microRNA in T-cells from ITP patients and controls. We identified 1,915 regulated genes and 22 regulated microRNA that differed between ITP patients and controls. Seventeen of the 22 regulated microRNA were linked to changes in target gene expression; 57 of these target genes were associated with the immune system, e.g. T-cell activation and regulation of immunoglobulin production. CXCL13 and IL-21 were two microRNA target genes significantly increased in ITP. We could demonstrate increased plasma levels of CXCL13 and others have reported increased plasma levels of IL-21 in ITP. Thus, regulated microRNA were significantly associated with both gene and protein expression of molecules in immunological pathways. We suggest that microRNA may be important regulatory molecules involved in the loss of tolerance in ITP.
2013-01-22 | GSE43177 | GEO
Project description:MicroRNA regulate immune pathways in T-cells in multiple sclerosis (MS) mRNA
| PRJNA186786 | ENA
Project description:Immune thrombocytopenia (ITP) is a common platelet disorder in pediatric patients. Pediatric and adult ITP have been associated with sialic acid alterations, but the pathophysiology of ITP remains elusive, and ITP is often a diagnosis of exclusion. Our analysis of pediatric ITP plasma samples showed increased anti-Thomsen-Friedenreich antigen (TF-antigen) antibody representation, suggesting increased exposure of the typically sialylated and cryptic TF-antigen in these patients. The O-glycan sialyltransferase St3gal1 add sialic acid specifically on the TF-antigen. To understand if TF-antigen exposure associates with thrombocytopenia, we generated a mouse model with targeted deletion of St3gal1 in megakaryocytes (MK) (St3gal1MK-/-). TF-antigen exposure was restricted to MKs and resulted in thrombocytopenia. Deletion of Jak3 in St3gal1MK-/- mice normalized platelet counts implicating involvement of immune cells. Interferon-producing Siglec H-positive bone marrow (BM) immune cells engaged with O-glycan sialic acid moieties to regulate type I interferon (IFN-I) secretion and platelet release (thrombopoiesis), as evidenced by partially normalized platelet count following and inhibition of interferon and Siglec H receptors. Single cell RNAseq determined that TF-antigen exposure by MKs primed St3gal1MK-/- BM immune cells to release IFN-I. Single cell RNAseq further revealed a new population of immune cells with a plasmacytoid dendritic cell (pDC)-like signature and concomitant upregulation of immunoglobulin re-arrangement gene transcripts Igkc and Ighm, suggesting additional immune regulatory mechanisms. Thus, aberrant TF-antigen moieties, often found in pathological conditions, regulate immune cells and thrombopoiesis in the BM, leading to reduced platelet count.
2021-06-29 | GSE179067 | GEO
Project description:Immune thrombocytopenia (ITP) is an autoimmune disease where platelets are destroyed prematurely. In the majority of children the disease resolves but in some it becomes chronic. To investigate whether the two forms of the disease are similar or separate entities we performed DNA microarray analysis of T-cells from newly diagnosed children and children with chronic ITP. We found complete separation of the expression files between the two forms of the disease. Furthermore, the gene expression of several cytokines differed between the two forms of the disease. This was also reflected in plasma with increased levels of IL-16 and TWEAK and lower levels of IL-4 in newly diagnosed compared with chronic ITP. Thus, our data indicate that the two forms of the disease may be separate entities. Microarray expression analysis of mRNA in peripheral blood T-cell of Newly diagnosed ITP vs Chronic ITP
2013-08-05 | E-GEOD-46922 | biostudies-arrayexpress
Project description:Macrophage phagocytosis is essential for immune homeostasis but must be tightly constrained to prevent pathological tissue damage. How cellular stress pathways enforce phagocytic homeostasis remains incompletely understood. Here, we show that phagocytosis selectively activates the endoplasmic reticulum stress sensor IRE1α in macrophages, which functions as a negative regulator of lysosome-driven phagocytic amplification. Using myeloid-specific IRE1α-deficient mice and pharmacological inhibition, we demonstrate that loss of IRE1α RNase activity leads to excessive phagocytosis through unchecked lysosomal biogenesis. Mechanistically, phagocytosis-activated IRE1α directly degrades Nr1d1 mRNA via regulated IRE1α-dependent decay (RIDD), thereby restraining NR1D1-driven lysosomal expansion. Disruption of this IRE1α-NR1D1 axis exacerbates macrophage-mediated platelet clearance and accelerates disease progression of immune thrombocytopenia (ITP). Reduced ERN1 expression and IRE1α activity are observed in monocytes from patients with ITP. Pharmacological inhibition of NR1D1 or lysosomal activity rescues thrombocytopenia. Together, these findings establish the IRE1α-NR1D1-lysosome axis as a therapeutically actionable pathway in phagocytosis-driven diseases.
2026-02-05 | GSE305695 | GEO