Transcriptional remodeling of human dermal blood vascular and lymphatic endothelial cells in psoriasis
Ontology highlight
ABSTRACT:
INSTRUMENT(S): Illumina NovaSeq 6000
ORGANISM(S): Homo sapiens
SUBMITTER: Yuliang He
PROVIDER: E-MTAB-11218 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:Dermal lymphatic endothelial cells were isolated from chronic psoriatic plaques or healthy human skin for cultivation and subsequently subjected to RNA-Seq.
2024-06-29 | E-MTAB-11573 | biostudies-arrayexpress
Project description:Dermal fibroblasts were isolated from healthy human skin or chronic psoriatic plaques for cultivation, which were subsequently subjected to RNA-Seq.
2022-10-18 | E-MTAB-11098 | biostudies-arrayexpress
Project description:IL-20 cytokines are involved in the establishment of psoriasis, a common chronic skin inflammation epidemiologically associated with metabolic syndrome, but molecular mechanisms underlying their over-expression remain to be elucidated. We find that keratinocytes (KCs) expressed IL-20 and lymphocytes expressed IL-22 cytokines up-regulation occurs at post-transcriptional level with stabilization of their RNA messengers. Looking at psoriatic epidermis, we observe that the p38/MK2 pathway is not activated but that the RNA-binding protein (RBP) HuR re-localizes in keratinocytes cytoplasm, suggesting post-transcriptional regulation of numerous mRNAs. HuR ribonucleoprotein immunoprecipitations analyzed by high-throughput sequencing (RIP-Seq) identify potential pre-mature and mature RNA targets for uninvolved and involved skin and confirms that HuR activity is displaced from the nucleus to the cytoplasm. Numerous psoriasis up-regulated transcripts are HuR targets and HuR knockdown reduces expression of transcripts like beta-defensin-2, CXCL-10 or IL-2, suggesting an implication of HuR in pathophysiological processes such as morphological, immune and metabolic inflammatory responses. Finally, metabolic disorders affecting psoriatic keratinocytes are responsible for HuR cytoplasmic localization since a decreased activity of the cellular metabolic sensor AMPK, that is observed in human psoriatic epidermis, is sufficient to promote HuR cytosolic localization as well as IL-20 over-production both in human keratinocytes and in vivo in mouse epidermis where it then initiates psoriasis-like histological changes. These results may provide insights into molecular links between metabolism and post-transcriptional networks during chronic inflammation, as illustrated in psoriasis by mechanisms connecting AMPK, HuR and IL-20. Analysis of HuR-binding RNA in uninvolved versus involved psoriatic samples by RIP-Seq. Samples from five different patients were used for both uninvolved and involved skin. RIP-Seq was also made using a control IgG.
2015-09-08 | E-GEOD-50598 | biostudies-arrayexpress
Project description:Object: To study the difference of gene expression pattern of bone marrow mesenchymal stem cells (BMMSCs) between psoriatic patients, normal adults and aborted fetuses, and then to explore the influence of bone marrow mesenchymal stem cells to immune system. Methods: Bone marrow mononuclear cells (BMMNC) of 7 psoriatic patients, 4 healthy volunteers and 3 aborted fetuses were isolated and the BMMSCs were cultured using the adherent method. Gene expression of 14 samples was detected by gene microarray and the different expressed genes were analysised by SAM software. Results: 654 differentially expressed genes (66 up regulated, 588 down regulated) were detected between the psoriatic patients and normal adults, which were enriched in immune response, chemotaxis and cell adhesion etc. 2020 differentially expressed genes (888 up regulated, 1132 down regulated) were detected between the aborted fetuses and normal adults. These genes were enriched in cell cycle, cell division, immune response and MHC class II antigen etc. Conclusion: The gene expression pattern such as immune response, chemotaxis was aberrant in psoriatic BMMNCs, which was consistent with aborted fetuses in some immune related genes. Bone marrow mononuclear cells (BMMNC) of 7 psoriatic patients, 4 healthy volunteers and 3 aborted fetuses were isolated and the BMMSCs were cultured using the adherent method. Gene expression of 14 samples was detected by gene microarray and the different expressed genes were analyzed by SAM software.
2012-08-10 | E-GEOD-40033 | biostudies-arrayexpress
Project description:Lymphatic endothelial cells (LEC) residing in lymph nodes (LN) have been shown to express genes normally restricted to one or a few tissues, termed peripheral tissue antigens (PTA). The expression of one of these PTA, tyrosinase, by LN-resident LEC has been shown to mediate peripheral T cell tolerance. We used a microarray approach to determine the gene expression profile of LN-resident LEC and blood endothelial cells as a comparison with the objective of determining the global PTA repertoire in these LN stromal populations. Skin draining and mesenteric lymph nodes were pooled from 6 week old adult C57BL/6 mice, minced, and enzymatically digested yielding single cell suspensions. Lymph node stromal cells were purified via CD45 magnetic bead negative selection and pure populations of lymphatic endothelial cells (LEC) and blood endothelial cells (BEC) were obtained via electronic cell sorting according to their expression of gp38 and CD31 (LEC: gp38+ CD31+, BEC: gp38- CD31+). Total RNA was extracted, amplified, and hybridized to Affymetrix microarrays. 3 paired independent samples of purified lymph node LEC and BEC were analyzed.
2013-12-28 | E-GEOD-53686 | biostudies-arrayexpress
Project description:Several studies have suggested that MSCs have pleiotropic immuno-modulatory effects, including inhibition of T cell proliferation, suppression of NK cells proliferation, modulation of cytokine production, and inhibition of dendritic cell (DC) maturation etc. But the exactly mechanism are still largely unclear.We have found that the gene expression profile of psoriatic dermal MSCs was distinct different from normal MSCs. We proposed to investigate the DNA methylation profile of psoriatic MSCs.
2012-11-30 | GSE42634 | GEO
Project description:Several studies have suggested that MSCs have pleiotropic immuno-modulatory effects, including inhibition of T cell proliferation, suppression of NK cells proliferation, modulation of cytokine production, and inhibition of dendritic cell (DC) maturation etc. But the exactly mechanism are still largely unclear.We have found that the gene expression profile of psoriatic dermal MSCs was distinct different from normal MSCs. We proposed to investigate the DNA methylation profile of psoriatic MSCs. 6 patients and 6 normal control were inrolled in the study, the DNA methylation profile of dermal MSCs were studied using the microarry.
2012-11-30 | E-GEOD-42634 | biostudies-arrayexpress
Project description:Transcriptional remodeling of human dermal blood vascular and lymphatic endothelial cells in psoriasis
| PRJEB49174 | ENA
Project description:Angiogenesis and lymphangiogenesis have important roles in cancer progression and chronic inflammatory diseases, but efficient therapies against these diseases have been hampered by the lack of identified vascular lineage-specific markers and growth factors. Using transcriptional profiling of matched pairs of human dermal blood vascular and lymphatic endothelial cells, we first identified 236 lymphatic and 342 blood vascular signature genes. In silico analyses of the biologic pathways associated with these genes revealed lineage-specific functions for each cell type. Using a selection of 85 identified vascular lineage-specific genes, we developed a TaqMan RT-PCR-based, microfluidic card-formatted low-density microvascular differentiation array (LD-MDA) that was used to reliably identify and quantify the degree of lineage-specific differentiation in different types of endothelial cells, and to detect admixture of lymphatic endothelial cells in commercial preparations of microvascular endothelial cells. Application of Prediction Relevance Ranking and analysis of variance of LD-MDA expression profiles of 43 lesional skin samples obtained from patients with the chronic inflammatory disease psoriasis led to identification of cytokines which are significantly associated with angiogenesis or lymphangiogenesis in vivo. In particular, interleukin-7 and fibroblast growth factor-12 were identified as novel (lymph)angiogenic factors. This technology provides a novel tool to quantify lineage-specific vascular differentiation and to characterize (lymph)angiogenesis in clinical samples obtained from angiogenic diseases. Keywords: Quantitative real time RT-PCR, psoriasis (chronic inflammation) study Guided by the gene array results, we selected 54 LEC-specific genes and 31 BEC-specific genes, based upon their consistent and strong specific expression in LEC or BEC, as well as on their assignment to important biological pathways. In addition, the five pan-endothelial cell marker genes PECAM-1, vWF, KDR, TEK, CDH5 and the six endogenous control genes ACTB, GAPDH, PGK1, PPIA, RPLP0 and S18 were included in the design of the LD-MDA. After extraction of total RNA, the mRNA expression levels of the 96 genes were analyzed by quantitative RT-PCR using the 7900HT Real-Time PCR System (Applied Biosystems).
2008-10-04 | E-GEOD-11307 | biostudies-arrayexpress
Project description:Several studies have suggested that MSCs have pleiotropic immuno-modulatory effects, including inhibition of T cell proliferation, suppression of NK cells proliferation, modulation of cytokine production, and inhibition of dendritic cell (DC) maturation etc. But the exactly mechanism are still largely unclear. We proposed to investigate the microRNA expression profile of psoriatic MSCs.
2012-11-30 | GSE42633 | GEO