Peripheral gamma-delta T-cell remodeling in psoriasis is marked by late effector polarization and reduction of a circulating CSMD1-marked state
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE335977 | GEO | 2026/09/01
REPOSITORIES: GEO
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Project description:Peripheral gamma-delta T-cell remodeling in psoriasis is marked by late effector polarization and reduction of a circulating CSMD1-marked state
| PRJNA1480511 | ENA
Project description:we performed lentiviral CRISPR interference (CRISPRi) by recruiting dCas9 fused with the KRAB domain to the CSMD1 enhancer (fam3) in the neuronal precursor cell line – Lund human mesencephalic (LUHMES). Given that the expression of CSMD1 was not detectable in LUHMES cells we differentiated these cells into neurons. Differentiated neurons with CRISPRi of CSMD1 enhancer showed significantly higher expression of CSMD1 than control.
2022-06-30 | E-MTAB-8027 | biostudies-arrayexpress
Project description:CSMD1 gene, mapping to human chromosomal region 8p23, encodes a transmembrane protein with an extracellular region containing 14 CUB and 28 sushi domains, a transmembrane domain and a cytoplasmic domain with a putative tyrosine phosphorylation site.The loss of CSMD1 has been found to be associated with enhanced cell proliferation, migration and poor prognosis in head and neck squamous cell carcinoma (HNSCCs), lung squamous cell carcinoma (SCCs), melanoma, and breast cancer, suggesting its role as a tumor suppresser.However, its role in hypertrophic scar has not been uncovered. So we decided using fibroblasts to see its transcriptomes changing after CSMD1 knockdown.
2021-08-18 | GSE176551 | GEO
Project description:Infertility in men and women is a common and complex genetic trait with shared biological bases between the sexes. We performed a series of rare variant analyses across 73,185 women and men to identify genes that contribute to primary gonadal dysfunction and identified CSMD1 as a strong candidate in both sexes. CSMD1 is a complement regulatory protein on chromosome 8p23. In order to interpret and support our genetic findings, we performed detailed transcriptomic and protein-based experiments which found CSMD1 enriched at the germ-cell/somatic-cell interface in both male and female gonads. We then performed a battery of tests on Csmd1 knockout mice. Knockout males show increased rates of infertility, and present testes with severe histological degeneration and significantly increased deposition of complement C3 protein. Knockout females show significant reduction in ovarian quality and breeding success, as well as impaired branching of the mammary glands. Furthermore, double knockout of Csmd1 and C3 leads to an unexpected and non-additive reduction in breeding success, suggesting that CSMD1 and the complement pathway play an important role in the normal postnatal development of the gonads in both sexes.
2019-09-04 | GSE136769 | GEO
Project description:The contribution of chronic antigen stimulation to the occurrence of lymphoproliferative disorder (LPD) with the gamma-delta T-cell lineage is unclear, despite the fact that Epstein-Barr virus (EBV) positive T-cell LPD is derived from antigen-stimulated cytotoxic T-cells. Given the possible association of antigen stimulation with the development of cytotoxic T-cell LPD, we compared gene expression patterns in Epstein-Barr virus (EBV)-positive gamma-delta T-cell lines derived from patients with nasal T-cell lymphoma and chronic active EBV infection and those in gamma-delta T-cells from healthy volunteers. Three EBV-positive gamma-delta T-cells lines, SNT cells (SNT-8, SNT-13 and SNT-15), were used in this study. SNT-8 was established from patients with nasal T-cell lymphoma and SNT-13, -15 were established from patients with chronic active EBV infection (Zhang Y, et al., Br J Cancer 94:599-608, 2006). All the SNT cells exhibits common rearrangement of Vgamma9-JgammaP and Jdelta3 genes. The gamma-delta T-cells obtained from healthy volunteers were expanded ex vivo by 1 microM of zoledronate (ZOL) plus IL-2 for 14 days incubation.
2009-12-09 | GSE13906 | GEO
Project description:Epithelial cells provide an initial line of defense against damage and pathogens in barrier tissues such as the skin; however this balance is disrupted in obesity and metabolic disease. Skin gamma delta T cells recognize epithelial damage and release cytokines and growth factors that facilitate wound repair. To determine the impact of obesity and metabolic disease on skin gamma delta T cells, we isolated skin gamma delta T cells from 10-week old C57BLKS/J lean db/+ and obese db/db animals for further study. Due to a deficiency in the leptin receptor (db), homozygous db/db animals do not process satiety signals, continually eat and develop severe obesity and metabolic disease. Skin gamma delta T cells isolated from these animals were compared for changes in mRNA expression using microarray. We have determined that obesity and metabolic disease negatively impacts homeostasis and functionality of skin gamma delta T cells, rendering host defense mechanisms vulnerable to injury and infection.
2010-07-01 | GSE22196 | GEO
Project description:Epithelial cells provide an initial line of defense against damage and pathogens in barrier tissues such as the skin; however this balance is disrupted in obesity and metabolic disease. Skin gamma delta T cells recognize epithelial damage and release cytokines and growth factors that facilitate wound repair. To determine the impact of obesity and metabolic disease on skin gamma delta T cells, we isolated skin gamma delta T cells from 10-week old C57BLKS/J lean db/+ and obese db/db animals for further study. Due to a deficiency in the leptin receptor (db), homozygous db/db animals do not process satiety signals, continually eat and develop severe obesity and metabolic disease. Skin gamma delta T cells isolated from these animals were compared for changes in mRNA expression using microarray. We have determined that obesity and metabolic disease negatively impacts homeostasis and functionality of skin gamma delta T cells, rendering host defense mechanisms vulnerable to injury and infection. The goal of this experiment was to compare skin gamma delta T cells in a control mouse to skin gamma delta T cells isolated from an obese mouse to see what homeostatic changes occur in obesity and metabolic disease. gamma delta T cells were isolated from two 10-week old lean db/+ control and two 10-week old obese db/db animals for comparison. We wanted to determine which growth factors and signaling pathways were altered in skin gamma delta T cells residing in the obese environment.
2010-07-30 | E-GEOD-22196 | biostudies-arrayexpress
Project description:GFI1 is a transcription factor known to be essential for hematopoiesis and lymphoid cell generation. We have recently found that gamma delta T cells express GFI1 and its absence can impact gamma delta T cell formation. In order to identify how the lack of GFI1 can affect the development of thegamma delta T cell subsets, we have performed a single cell sequencing approach using 10X genomics scRNAseq on splenic gamma delta T cells, thymic gamma delta T cells and a pool of thymic DN1-2-3 (DN) cells from WT and GFI1 KO mice. The sc RNA-seq highlighted differential transcriptomic changes between WT and GFI1 KO cells showing enrichment or absence of specific subsets of gamma delta cells and their thymic progenitors.
2026-07-23 | GSE294083 | GEO
Project description:T cells bearing gamma delta T cell antigen receptors (TCRs) function in lymphoid stress surveillance. However, the contribution of gamma delta TCRs to such responses is unclear. Here we found that the TCR of a human V gamma4Vdelta5 clone directly bound endothelial protein C receptor (EPCR), which allowed gamma delta T cells to recognize both endothelial cells targeted by cytomegalovirus and epithelial tumors. EPCR is a major histocompatibility complex–like molecule that binds lipids analogously to the antigen-presenting molecule CD1d. However, the V gamma4Vdelta5 TCR bound EPCR independently of lipids, in an antibody-like way. Moreover, the recognition of target cells by gamma delta T cells required a multimolecular stress signature composed of EPCR and costimulatory ligand(s). Our results demonstrate how a gamma delta TCR mediates recognition of broadly stressed human cells by engaging a stress-regulated self antigen.
2012-07-28 | GSE39709 | GEO
Project description:We used microarrays to detail the global programme of gene expression by circulating TCRVgamma9+ gamma delta T cells isolated from healthy individuals,tested either as resting cells or cells activated by phosphoantigen BrHPP and IL-2at an early(+6hrs) and a late (+7days) timepoint. We find that with more “NK cell” genes than alphabeta T cells and more “T cell” genes than NK cells, the circulating TCRVgamma9+ gamma delta T cells cells have a hybrid transcriptome. The gene signature of the activated cells recapitulates their physiological functions: Th1 cytokine, chemokine and cytotoxic activities at first and mitotic activity at later time points. The gene expression pattern of activated normal gamma delta T cells is nevertheless clearly distinctive from that of NK/T and peripheral T cell lymphomas of the gamma delta subtype.
2011-02-15 | GSE27291 | GEO