Similar Datasets
Project description:Uveitis describes a heterogeneous group of inflammatory eye diseases characterized by infiltration of leukocytes into the uveal tissues. uveitis associated with the HLA haplotype B27 (HLA-B27) is a common subtype of uveitis and a prototypical ocular immune-mediated disease. Local immune mechanisms driving human uveitis are poorly characterized mainly due to the limited available biomaterial and subsequent technical limitations. Here, we provide the first high-resolution characterization of intraocular leukocytes in HLA-B27 positive (n=3) and negative (n=2) anterior uveitis and an infectious endophthalmitis control (n=1) by combining single cell RNA-sequencing with flow cytometry and protein analysis. Ocular cell infiltrates consisted primarily of lymphocytes in both subtypes of uveitis and of myeloid cells in infectious endophthalmitis. HLA-B27 positive uveitis exclusively featured a plasmacytoid and classical dendritic cells (cDC) infiltrate. Moreover, cDCs were central in predicted local cell-cell communication. This suggests a unique pattern of ocular leukocyte infiltration in HLA-B27 positive uveitis with relevance of dendritic cells.
2021-06-25 | GSE178833 | GEO
Project description:Endotoxin-induced uveitis (EIU) in rodents is a good animal model to study uveitis and associated acute retinal inflammation. To understand the pathogenic mechanism of uveitis and screen the potential targets for treatment, we analyzed the retinal proteomic profiles of EIU and normal C57BL/6J mice using a data-independent acquisition-based mass spectrometry (SWATH-MS).
2022-08-12 | PXD033532 | Pride
Project description:In this study, we found that microglia have a considerable number of cells compared to T cells, indicating an equally critical role of microglia in the progression of autoimmune uveitis. We further identified a specific microglial subpopulation expressed with high levels of CD74 and CCL5, which may be directly related to inflammation regulation in autoimmune uveitis and named inflammation-associated microglia (IAMs). Decreasing the number of IAMs by gene regulation methods or CD74/CCL5 neutralizing antibodies effectively reduced inflammation in EAU mice and delayed disease progression. A mechanistic study indicated that the CD74/CCL5 axis was mainly responsible for the regulation of the immune response in autoimmune uveitis. The intracytoplasmic domain of CD74 (CD74–ICD) may be cleaved by the SPPL2A protease and then activate the NF-kB-dependent inflammation pathway in IAM, resulting in the production of CCL5, which recruits peripheral T cells into the retina and causes an inflammatory burst in autoimmune uveitis mice. Decreasing the level of CD74 or CCL5 could effectively reduce uveitogenic T cell infiltration and relieve the autoimmune response in EAU mouse models, indicating the potential therapeutic value of CD74 and CCL5 in autoimmune uveitis.
2022-11-11 | GSE191260 | GEO
Project description:Uveitis is a severe autoimmune disease characereized by retinal inflammation, whicn brings harms to the visual function of the patients. We found that nimodipine could protect annimals from experimental autoimmune uveitis. To further clarify the possible mechanism through which nimodipine exerted effect, we performed genomic expression profiling of CD3+ T cells in EAU model and nimodipine treated group.
2021-09-03 | GSE183165 | GEO
Project description:Experimental autoimmune uveitis (EAU) in Lewis rats is a model for the clinical heterogeneity of human uveitis. The autoantigens inducing disease in the rat are also seen in human disease. Depending upon the specific autoantigen used, the experimental disease course can be either monophasic or relapsing/remitting and appears to be dictated by the T cell effector phenotype elicited. We investigated potential differences between monophasic and relapsing/remitting effector T cells using transcriptomic profiling and pathway analysis. RNA samples isolated from three independent T cell lines derived from each specificity where analyzed by microarrays. Microarray data was used to obtain transcriptomic changes reflecting signal transduction pathway dysregulation. Keywords: Two group comparison Comparison of two types of cell lines of two different antigen specificities.
2010-12-01 | E-GEOD-19652 | biostudies-arrayexpress
Project description:Uveitis is an immune-inflammatory disease that can cause blindness. However, little is known about a comprehensive atlas of the ocular cellular and inflammatory components in uveitis. Here, single-cell RNA sequencing was performed to construct a transcriptomic atlas of ocular cells from experimental autoimmune uveitis (EAU) and control mice to identify disease- associated immune cell subsets and molecules. We reveal 15 cell types in eyes and found an α-Synuclein positive microglia subset and plasma cell subset with high level of cytokines. The heterogeneous plasma cells subsets communicated with DC, T cells and retinal cells via various cytokines and molecular pairing. The G protein Rab1A participated in the inflammatory response of plasma cells. Altogether, we revealed the heterogeneous inflammatory genes, EAU-specific immune cell populations, and dysregulated communications of immune and retinal cells in EAU. This result provides a systematic view of the transcriptional map of uveitis and a foundation for studying the cellular and molecular mechanisms and pathogenesis of this disease.
2023-07-10 | GSE236389 | GEO
Project description:Equine recurrent uveitis (ERU) is the only spontaneous model for recurrent autoimmune uveitis in humans, where T cells target retinal proteins. Differences between normal and autoaggressive lymphocytes were identified in this study by analyzing peripheral blood derived lymphocytes (PBL) proteomes from the same case with IRBP-induced uveitis sampled before (day 0), during (day 15) and after uveitic attack (day 23). Relative protein abundances of PBL were investigated in a quantitative, label-free differential proteome analysis in cells that were kept frozen for 14 years since the initial experiment. Quantitative data could be acquired for 2632 proteins at all three time-points. Profound changes (> 2 fold change) in PBL protein abundance were observed when comparing day 0 to 15, representing acute inflammation (234 regulated proteins) and day 0 to 23 (cessation; 382 regulated). Significant differences applied to proteins with functions in integrin signaling during active uveitis, involving “Erk and pi-3 kinase are necessary for collagen binding in corneal epithelia”, “Integrins in angiogenesis” and “Integrin-linked kinase signaling” pathways. In contrast, at cessation of uveitic attack, significantly changed proteins belonged to pathways of “nongenotropic androgen signaling”, “classical complement pathway” and “Amb2 integrin signaling”. Several members of respective pathways were earlier shown to be changed in naturally occurring uveitis, underscoring the significance of these findings here and proofing the value of the induced model in mimicking spontaneous autoimmune uveitis.
2017-08-31 | PXD005580 | Pride
Project description:Pathogenesis of anterior uveitis (ocular manifestation of ZIKV infection in adults, distinct from children).
2021-03-03 | GSE131605 | GEO
Project description:We profiled using single cell RNA sequencing the immune cells of the aqueous humor from patients with uveitis.
2023-12-14 | GSE229166 | GEO