Genomic landscape of aplastic anemia
This study investigates the genomic landscape of aplastic anemia using complementary sequencing approaches. Single-cell DNA and protein profiling were performed using the Mission Bio Tapestri platform to characterize clonal structure and immunophenotypic features. Long-read whole-genome sequencing (PacBio) and single-cell whole-genome sequencing (BioSkryb) were also generated to capture structural variants and genome-wide clonal architecture. Together, these datasets aim to elucidate mutational processes and clonal evolution underlying aplastic anemia.
Study
EGAS50000001516
Combined genetic and transcriptome analysis of patients with Systemic Lupus Erythematosus (SLE)
A comprehensive profiling of the genomic architecture of Systemic Lupus Erythematosus (SLE) by combining genetic and transscriptomic analysis by RNA-seq.
Study
EGAS00001003662
Loss of functional mutation in RPL27 and RPS27 identified by whole-exome sequencing in Diamond-Blackfan Anemia
We performed whole-exome sequencing analysis of 48 patients with no documented mutations/deletions involving known Diamond-Blackfan anemia genes and identified 10 mutations in previous known causative genes and 2 mutations in novel ribosomal genes.
Study
EGAS00001000875
Identification of Germline Monoallelic Mutations in IKZF2 in Patients with Immune Dysregulation.
Helios, encoded by IKZF2, is a member of the Ikaros family of transcription factors with pivotal roles in T-follicular helper, NK- and T-regulatory cell physiology. Somatic IKZF2 mutations are frequently found in lymphoid malignancies. Although germline mutations in IKZF1 and IKZF3, encoding Ikaros and Aiolos, have recently been identified in patients with phenotypically similar immunodeficiency syndromes, the effect of germline mutations in IKZF2 on human hematopoiesis and immunity remains enigmatic. We identified germline IKZF2 mutations (one nonsense (p.R291X)- and 4 distinct missense variants) in six patients with systemic lupus erythematosus, immune thrombocytopenia or EBV-associated hemophagocytic lymphohistiocytosis. Patients exhibited hypogammaglobulinemia, decreased number of T-follicular helper and NKcells. Single-cell RNA sequencing of PBMCs from the patient carrying the R291X variant revealed upregulation of pro-inflammatory genes associated with T-cell receptor activation and T-cell exhaustion. Functional assays revealed the inability of HeliosR291X to homodimerize and bind target DNA as dimers. Moreover, proteomic analysis by proximity-dependent Biotin Identification revealed aberrant interaction of 3/5 Helios mutants with core components of the NuRD complex conveying HELIOS mediated epigenetic and transcriptional dysregulation.
Study
EGAS00001005874
Nasal brushes analysis
scRNA-seq samples from healthy and asthma donors part 1.
Study
EGAS00001006657
Mutational_burden_in_skin_following_UV_treatment_WGS
We wish to assess the changes in mutational burden in patients under going UV treatment for psoriasis. Using duplex sequencing we will assess mutational burden in traditionally sun exposed (arm) and non-sun exposed (buttock) skin epidermis both pre and post UV treatment.
Study
EGAS00001007682
Mutational_burden_in_skin_following_UV_treatment_Nanoseq
We wish to assess the changes in mutational burden in patients under going UV treatment for psoriasis. Using duplex sequencing we will assess mutational burden in traditionally sun exposed (arm) and non-sun exposed (buttock) skin epidermis both pre and post UV treatment.
Study
EGAS00001007681
Psoriatic_arthritis_WGS
Whole genome sequencing of immune cells from patients diagnosed with psoriatic arthritis
Study
EGAS00001002822
Coding and small non-coding transcriptional landscape of tuberous sclerosis complex cortical tubers: implications for pathophysiology and treatment
Tuberous Sclerosis Complex (TSC) is a rare genetic disorder that results from a mutation in the TSC1 or TSC2 genes leading to constitutive activation of the mechanistic target of rapamycin complex 1 (mTORC1). TSC is associated with autism, intellectual disability and severe epilepsy. Cortical tubers are believed to represent the neuropathological substrates of these disabling manifestations in TSC. In the presented study we used high-throughput RNA sequencing in combination with systems-based computational approaches to investigate the complexity of the TSC molecular network. Overall we detected 438 differentially expressed genes and 991 differentially expressed small non-coding RNAs in cortical tubers compared to autopsy control brain tissue. We observed increased expression of genes associated with inflammatory, innate and adaptive immune responses. In contrast, we observed a down-regulation of genes associated with neurogenesis and glutamate receptor signaling. MicroRNAs represented the largest class of over-expressed small non-coding RNA species in tubers. In particular, our analysis revealed that the miR-34 family (including miR-34a, miR-34b and miR-34c) was significantly over-expressed. Functional studies demonstrated the ability of miR-34b to modulate neurite outgrowth in mouse primary hippocampal neuronal cultures. This study provides new insights into the TSC transcriptomic network along with the identification of potential new treatment targets.
Study
EGAS00001002485
Psoriatic_arthritis
This is a pilot single cell mRNA sequencing experiment to study immune cells in psoriatic arthritis.
Study
EGAS00001002104
Somatic_evolution_in_the_psoriatic_skin
We will use laser capture microdissection to dissect groups of a few hundred cells, from which we will isolate and sequence nucleic acids. We aim to whole-genome, whole-exome and RNA sequence the samples in effort to understand the accumulation of somatic mutations in psoriasis and their effect on transcription.
Study
EGAS00001004882
RSV infection of primary bronchial epithelial cells in asthma
Primary bronchial epithelial cells derived from healthy donors and asthma patients were differentiated in Air-Liquid-Interface condition and infected with the respiratory syncytial virus. Single-cell RNA sequencing analysis of these cultures was used to study the transcriptomic response of the cells to RSV.
Study
EGAS00001007450
Single-cell RNA-seq and TCR-seq of synovial tissue and peripheral blood CD4+ and CD8+ T cells from patients with immune-mediated refractory arthritis
In this study, we investigated CD4+ and CD8+ T lymphocytes from the synovial tissue and peripheral blood of patients with treatment-resistant immune-mediated arthritis using paired single-cell RNA and TCR-sequencing.
Study
EGAS50000000528
Whole-exome sequencing of Fanconi anemia-like inherited bone marrow failure syndrome
We identified three fibroblast cultures derived from aplastic anemia patients in the Japanese Cancer Research Resources Bank (JCRB) Cell Bank that showed high levels of sister chromatid exchanges (SCEs) in PHA-stimulated lymphoblasts. To elucidate the genetic basis of the high SCE, we carried out whole exome sequencing of these samples. Subsequently, germline variants were analysed for these patients.
Study
EGAS00001003809
WTCCC case-control study for Autoimmune Thyroid Disease - Combined Controls
WTCCC genome-wide case-control association study for Autoimmune Thyroid Disease (ATD) - Combined Controls.
Study
EGAS00000000021
Identification of Long Non-coding RNA Biomarker of Human Lupus Nephritis Disease Activity
Total RNA sequencing was performed on whole blood samples from 74 Lupus nephritis (LN) patients and 20 healthy controls. Differential expression analysis and weighted gene co-expression network analysis were performed to characterise expression changes of long non-coding RNAs (lncRNAs) in LN and identify lncRNAs with a key role in disease activity that could be used as potential blood-based biomarkers.
Study
EGAS00001007117
WTCCC case-control study for Multiple Sclerosis - Combined controls
WTCCC genome-wide accosication study for Multiple Sclerosis (MS) - Combined controls
Study
EGAS00000000023
Complement C1s deficiency in a male Caucasian patient with systemic lupus erythematosus: A case report
This study involves whole genome sequencing of a 34-year-old male with a rare deficiency in complement component C1s, linked to systemic lupus erythematosus (SLE). Genomic analysis revealed two novel mutations in the C1S gene, resulting in absent C1s protein and impaired classical complement pathway function. The goal was to confirm the C1s deficiency and identify the specific mutations causing this condition.
Study
EGAS50000000707
WTCCC case-control study for Autoimmune Thyroid Disease
WTCCC genome-wide case-control association study for Autoimmune Thyroid Disease (ATD) using the 1958 British Birth Cohort collection as controls.
Study
EGAS00000000020
SEARCH FOR BACTERIA IN NEURAL TISSUE FROM AMYOTROPHIC LATERAL SCLEROSIS
The study aims to find bacteria in neural tissue from patients with amyotrophic lateral sclerosis
Study
EGAS00001003295
Multiple Sclerosis Replication Chip data (MS Chip)
Genetic data typed with the MS Chip, designed by the International Multiple Sclerosis Genetics Consortium (IMSGC).
Study
EGAS00001003216
TLR7 variants in human lupus patients
Study
EGAS00001005965
WTCCC case-control study for Multiple Sclerosis
WTCCC genome-wide case-control association study for Multiple Sclerosis (MS) using the 1958 British Birth Cohort collection as controls.
Study
EGAS00000000022
Single cell RNA sequencing of peripheral blood HSPC from patients with sickle cell anemia and healthy donors
Neutrophils and monocytes are critical contributors to the pathophysiology of sickle cell anemia (SCA) and are persistently elevated in patients' circulation. While chronic hemolysis has been implicated in this leukocytosis, the underlying mechanisms remain incompletely understood. Our data show a myeloid-skewed transcriptional signature in early progenitor populations, including multipotent progenitors (MPPs) and hematopoietic stem cells (HSCs). Notably, we identify upregulation of the type I interferon signaling pathway in HSPCs as a key driver of early myeloid programming in SCA.
Study
EGAS50000001046
Fungal infection in neural tissue from Amyotrophic Lateral Sclerosis
The study shows that fungus infection, isolated from neural tissue, can be a risk factor to develop Amyothophic lateral sclerosis (ALS).
Study
EGAS00001002473
Somatic mutations in lymphocytes in patients with immune-mediated aplastic anemia
Study
EGAS00001004994
Impact of allogeneic umbilical-cord derived mesenchymal stromal cells on B-cell scRNAseq in patients with systemic lupus erythematosus
The impact of MSC(UC) on peripheral B cells from Systemic Lupus Erythematosus (SLE) patients was studied by 10X scRNAseq. This scRNAseq study encompassed 3 SLE patients at 3 time points: before or after (1 month, and 3 months) MSC injection in order to analyze B cell subsets and their DEG. The aim of this study was to observe the potential changes of B cell subsets after MSC(UC) injection in SLE patients.
Study
EGAS50000000325
Celiac disease-specific intestinal T cells analyzed with HLA-class II tetramers, RNA-seq and mass cytometry have a narrow, autoimmune-associated phenotype
Celiac disease (CD) is an HLA-DQ2/8-associated autoimmune enteropathy driven by activation of gluten-specific CD4+ T lymphocytes upon gluten consumption. Much less is known about the phenotype and function of these cells or their correlation, if any, to disease-relevant cells in other autoimmune disorders. Here we use mass cytometry and RNA seq to show that gluten-specific blood and gut T cells occupy a small and phenotypically distinct T-cell subset.
Study
EGAS00001003017
Study of the rare and low frequency variants in the Saguenay-Lac-Saint-Jean population
The Saguenay–Lac-Saint-Jean (SLSJ) region is located in northeastern Quebec and is known for its unique demographic history and founder effect. Since founder populations are enriched with population-specific variants, we characterized the variants distribution in SLSJ and compared it with four European populations (Finnish, Sweden, United Kingdom and France), of which the Finnish population is another founder population. Targeted sequencing of the coding and non-coding immune regulatory regions of the SLSJ asthma familial cohort and the four European populations were performed. Rare and low-frequency coding and noncoding regulatory variants identified in the SLSJ population were then investigated for variant- and gene-level associations with asthma and allergy related-traits (eosinophil percentage, immunoglobulin (Ig)E levels and lung function). Our data showed that (1) rare or deleterious variants were not enriched in the two founder populations as compared to the three non-founder European populations; (2) a larger proportion of founder population-specific variants occurred with higher frequencies; and (3) low-frequency variants appeared to be more deleterious. Furthermore, a rare variant, rs1386931, located in the 3’UTR of CXCR6 and intron of FYCO1 was found to be associated with eosinophil percentage. Gene-based analyses identified NRP2, MRPL44 and SERPINE2 to be associated with various asthma and allergy related traits. Our study demonstrated the usefulness of using a founder population to identify new genes associated with asthma and allergy-related traits; thus better understand the genes and pathways implicated in pathophysiology.
Study
EGAS00001003103
Epigenetic and transcriptional profile of memory B cells in Multiple sclerosis
Methylome and transcriptome data of non-proliferating and autoproliferating memory B cells (CD27+) from Multiple sclerosis patients under natalizumab treatment, that have been generated and analyzed for the study "T-bet+ CXCR3+ B cells drive hyperreactive B-T cell interactions in multiple sclerosis".
Aim is to understand epigentic and transcriptional differences in activated memory B cells in MS and how epigentic differences translated in transcriptional changes in the same patient.
Study
EGAS50000000872
Next Generation Sequencing Characterization of Hematopoietic Stem and Progenitors Cells in Human Systemic Lupus Eryhtematosus
Study
EGAS00001003679
A single-cell transcriptional gradient in human cutaneous memory T cells restricts Th17/Tc17 identity
We identified a gradated transcriptional program of coordinately regulated inflammation-suppressive genes in psoriatic resident memory T cells. This dataset includes bulk RNA-seq for CRISPR-based deactivation of two core components of this inflammation-suppressive program, ZFP36L2 and ZFP36, in human PBMCs. It also includes scRNA-seq of cutaneous immune cells from psoriasis patients before and during therapeutic IL-23 blockade.
Study
EGAS00001006716
Negligible impact on missing heritability of autoimmune-locus rare coding-region variants
Genome wide association studies (GWAS) have identified common variants of modest effect size at hundreds of loci for common autoimmune diseases - however a substantial fraction of heritability remains unexplained, and to which rare variants may contribute. To discover rare variants and test them for association with a phenotype, the majority of studies re-sequence a small initial sample size and then genotype the discovered variants in a larger sample set. This approach will fail to analyse a large fraction of the rare variants present in the entire sample set. Here we perform simultaneous amplicon sequencing-based variant discovery and genotyping for coding exons of 25 GWAS risk genes in 41,911 white-European origin UK subjects comprising 24,892 subjects with six autoimmune disease phenotypes and 17,019 controls, and show that rare coding-region variants at known loci play a negligible role in common autoimmune disease susceptibility. These results do not support the rare variant - synthetic genome-wide association hypothesis. Many known autoimmune disease risk loci contain multiple independent common and low frequency variant association signals, and so genes in these loci are a priori stronger candidates to harbor rare coding-region variants than other genes. Our data suggest that the missing heritability for common autoimmune diseases may not lie in the rare coding-region variant portion of the allelic spectrum, but perhaps as others have proposed in very many common variant signals of weak effect.
Study
EGAS00001000476
Epigenome-wide association study of asthma remission in whole blood and nasal epithelium
Study
EGAS00001004766
RNA sequencing of circulating human immune cells before and after interleukin-2 immunotherapy in systemic lupus erythematosus patients
Within the investigator-initiated clinical trial Charact-IL-2 (ClinicalTrials.gov Identifier: NCT03312335), we treated 12 female systemic lupus erythematosus patients with low-dose interleukin-2. Patients received 4 cycles of 5 daily injections of 1.5 million international units interleukin-2 over 9 weeks. This study aimed at investigating interleukin-2-induced transcriptional changes in circulating human immune cells, and to define changes in T cell receptor clonality before and after interleukin-2 immunotherapy. For this purpose, blood was collected from patients before and after each treatment cycle.
Study
EGAS50000000458
Genomic characterization of a patient with AGS and CdLS transcriptomic comparison of his monocytes against healthy and disease control samples
In this study, we describe an extreme genetic phenotype of two simultaneous genetic lesions, leading to broad alterations in immunophenotype and transcriptome. Whole Exome Sequencing and RNA-Sequencing of CD14+ monocytes was performed on the case patient, and RNA-sequencing was also performed on disease (Systemic Lupus Erythematosus) and healthy controls.
Study
EGAS00001007829
T-bet+ CXCR3+ B cells drive hyperreactive B-T cell interactions in multiple sclerosis
scRNAseq, VDJseq and methylome of non-proliferating and autoproliferating B cells from HDs and MS patients, as well as snRNAseq of highly inflamed meningeal MS brain tissue datasets that have been generated and analyzed for the study "T-bet+ CXCR3+ B cells drive hyperreactive B-T cell interactions in multiple sclerosis".
Study
EGAS50000000845
CLUSTER RNAseq Study of Juvenile Idiopathic Arthritis patients in methotrexate cohort
CLUSTER aims to discover novel disease mechanisms and biomarkers in children suffering from Juvenile idiopathic arthritis (JIA). Currently, little is known about the pathological disease mechanisms of JIA and there are no validated tools capable of predicting response or non-response to treatment. The study aims to identify biomarkers for treatment response using RNAseq technology.
The samples used in this study comes from blood samples that were collected prior to patients receiving methotrexate treatment (naive). These samples were then processed for PBMC isolation followed by sorting cells into 4 different immune cell types. All of these samples were then sequenced by NovaSeq6000.
Study
EGAS50000000995
1__Fanconi_Anemia_transformation_to_AML
Genomic libraries (500 bps) will be generated from total genomic DNA derived from 7 Fanconi anemia (FA) derived Acute myeloid leukemia samples and subjected to total of two lanes of 50 bp, paired end sequencing on the llumina HiSeq. Paired reads will be mapped to build 37 of the human reference genome to facilitate the generation of genome wide copy number information, and the identification of novel rearranged cancer genes and gene fusions.
Study
EGAS00001000033
CLUSTER consortium RNAseq CD19 B cell dataset of UK JIA patients.
This study examines B cell transcriptomic profiles in Juvenile Idiopathic Arthritis (JIA) patients to investigate molecular mechanisms underlying disease heterogeneity. CD19+ B cells were isolated from peripheral blood samples and subjected to RNA sequencing to characterise gene expression patterns. The dataset includes patients with documented uveitis status to enable investigation of B cell contributions to the common JIA comorbidity.
Study
EGAS50000001123
The Genetic Analysis of multiple sclerosis
We created these data in order to identify genetic variants associated with increased susceptibility to multiple sclerosis. Cases from many parts of the world were genotyped with the Illumina 660 chip along with Swedish controls. In our analysis we also used control data from the WTCCC2 common UK controls and from other published studies.
Study
EGAS00000000101
Susceptibility_genes_for_the_development_of_SLE_during_treatment_of_IBD
A potential and very serious side effect of treating IBD with antiTNFa therapies (the currentgold standard) is the development of systemic lupus erythematosis (SLE). This side effect israre and unpredictable. Out of several thousand cases having received treatment, theUniversity of Calgary have accumulated 12 individuals with full phenotyping and novelserological antibody discovery panel data. We propose to exome sequence these samples inan effort to identify rare highly-penetrant variants that could be underlying this severephenotype.
Study
EGAS00001000387
Juvenile Idiopathic Arthritis exome sequencing in a consanguineous family
Identify the causative gene defect in three affected patients with JIA.
Study
EGAS00001003510
Single cell sequencing in CNS autoimmune disease
Study
EGAS00001004449
Novel immunodeficiency caused by homozygous mutations of SLC19A1
The male proband suffered from infancy oral lesions, recurrent fever, diarrhea, vomiting, atopic dermatitis, dark discoloration patches on his skin and lip fissures; he suffered from anemia (megaloblastic), thrombocytopenia, hypogammaglobulinemia and lymphopenia; his growth and development are delayed. Whole exome sequencing identified only one variant predicted to have high impact and to potentially explain the patient’s phenotype, a homozygous missense chr21:46950793:C:T (hg19) SLC19A1 NM_194255:c.1042G>A (p.G348R). Sanger sequencing and segregation analysis confirmed the presence of the homozygous SLC19A1 c.1042G>A (G348R) missense variant in the proband, with a heterozygous state in his family. The same homozygous SLC19A1 variant was identified in a distantly-related male patient with a similar phenotype presentation, while his healthy family members were heterozygous. SLC19A1 is a folate transporter, and thus folic acid supplementation was performed for the proband: platelet counts normalized rapidly and anemia improved; hair and skin discoloration, mouth lesions and chronic diarrhea improved. In contrast, neurological and developmental issues remained unchanged and treatment had only a partial effect on the immune system. This further confirmed the causal role of SLC19A1 for the proband's condition.
Study
EGAS50000000356
Single cell RNA sequencing of cerebrospinal fluid
Single-cell RNA sequencing of cells isolated from cerebrospinal fluid from 81 individuals with multiple sclerosis (n=33) or other neurological disease (n=48) using 10x Genomics 3’ expression (v2 chemistry).
Study
EGAS00001007478
A GWAS of Progression in Multiple Sclerosis
This is a genome wide association study (GWAS) of disease progression in multiple sclerosis (MS). The study involved a total of 12584 cases recruited from multiple centres around the world and tested at 7.8 million common autosomal single nucleotide variants. The data from the European cases (n=4853) are included in this EGA submission in 10 country specific data sub-sets.
Study
EGAS00001007162
ARGO_GWAS
Osteoarthritis (OA) is the most common form of arthritis affecting ~40% of people over the age of 70. OA is characterised by cartilage degeneration in the synovial joints and presents one of the leading causes of chronic disability and impaired quality of life in the developed world.The ARGO study is an ongoing collection of well-phenotyped OA patients undergoing total joint replacement and is based in Greece.
Study
EGAS00001000917
Chromosome contacts in activated T cells identify autoimmune disease-candidate genes
Autoimmune disease-associated DNA variants are preferentially found in regions with putative regulatory function in immune cells, particularly CD4+ T cells. Linking such regulatory elements to gene promoters in disease-relevant cells and contexts is essential to identify disease candidate genes. Here we show that the activation of CD4+ T cells invokes changes in the activity of regulatory elements and transcription of RNAs that correspond to changes in the expression of their interacting genes identified by promoter capture Hi-C (PCHi-C).
Study
EGAS00001001961
An Empirical Approach Leveraging Tumorgrafts to Dissect the Tumor Microenvironment in Renal Cell Carcinoma Identifies Missing Link to Prognostic Inflammatory Factors
We undertook an empirical approach to dissect the tumor microenvironment by developing a bulk tumor dissection algorithm, DisHet, and leveraging RNA-Seq data of tumorgrafts (patient-derived tumors implanted in mice), in which only the tumor cell component expands. We found that approximately 65% of previously defined immune signature genes are not abundantly expressed in the Renal Cell Carcinoma (RCC) microenvironment, and we identified more than two times as many novel immune/stromal transcripts. By using refined immune/stroma-specific genes and genomics, electronic medical record data and imaging data of 1084 RCC patients, we discovered a highly-inflamed pan-RCC subtype enriched for Treg cells, NK cells, Th1 cells, neutrophils, macrophages, B cells, and CD8+ T cells. This inflamed subtype (IS) is enriched for aggressive RCCs, including BAP1-deficient clear-cell and type 2 papillary tumors. Interestingly, IS is correlated with systemic manifestations of inflammation in patients such as thrombocytosis and anemia, whose pathogenesis were poorly defined and have been predictors of poor prognosis in RCC. Indeed, we discovered that IS is a strong predictor of poor survival. Lastly, our analyses show that tumor cells may drive stromal immune response. Overall, these data provide a missing link between the tumor cells, the tumor microenvironment, and systemic factors.
Study
EGAS00001002786