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• T cell responses of ALS patients

  In this project, we aimed to understand how T cell responses contribute to the disease progression of amyotrophic lateral sclerosis (ALS). The present data is on single-cell sequencing isolated from human cerebrospinal fluid (CSF) cells from both ALS patients (n=5) and controls (n=4). This analysis was conducted as part of a bigger project which is summarized in the section below. We used flow cytometry to define T cell subsets and phenotypes in blood and CSF samples collected at the time of diagnosis on a cohort of 89 newly diagnosed ALS patients in Stockholm, Sweden. High frequency of CD4+FOXP3- effector T cells in blood and CSF was associated with poor survival whereas high frequency of activated regulatory T (Treg) cells and high ratio between activated and resting Treg cells in blood was associated with better survival. T cell profiles also predicted disease progression rate. On an independent cohort of cases and controls, we used single cell transcriptomics data to demonstrate that ALS patients had altered T cell gene expression patterns and clonally expanded CD4+ and CD8+ T cells in CSF. In summary, T cell responses contribute to disease progression of ALS, supporting modulation of adaptive immunity as a viable therapeutic option.

  Study EGAS00001006675

• Clinical and serum metabolomics data for individuals with ACS

  Full clinical data for a cohort of 199 individuals with acute coronary syndrome. Untargeted serum metabolomics using the Metabolon platform for individuals with ACS (n=156). Serum metabolomics using the Nightingale Health (NMR) platform for individuals with ACS and controls (ACS, n=191; controls, n=961).

  Dataset EGAD00001007724

• Single cell transcriptome sequencing of the developing human embryonic meninges

  There are no effective medical therapies for meningiomas, partly due to our limited understanding of their cellular origin and composition For this purpose, we generated data to make a comprehensive reference single cell and spatial transcriptomic atlas of human fetal meninges. Samples of meninges from human embryos of post-conceptional week (PCW) 5.0-13.0 were dissected and subject to 10Xgenomics chromium single cell RNA sequencing with the purpose of identifying cell types and gene expression programs for normal meninges development, Furthermore, this dataset should help discover cells of origin for meningiomas.

  Study EGAS50000000980

• Evolution of Resistance in ER+ Breast Cancer

  While the combination of endocrine therapy and CDK4/CDK6 inhibitors has been shown to be effective in the metastatic ER+ breast cancer setting, to test whether it is effective in an earlier stage neoadjuvant setting, the FELINE trial (NCT02712723) was established to test the efficacy of letrozole and ribociclib in a ER-positive, HER2-negative patients in a randomized, placebo-controlled, multicenter trial. Patients were randomized to one of three arms: those in Arm A received letrozole and placebo, Arm B letrozole and intermittent ribociclib, and Arm C letrozole and continuous ribociclib. Samples were collected at screening (Day 0), Cycle 1 (Day 14), and end of trial (Day 180). Samples from 24 patients, where cancer cells were present at Day 0 and one additional time point, were subjected to whole-exome sequencing profiling.

  Study phs002287

• Genomic Landscape and Clonal Architecture in Pediatric Myeloid Neoplasms with Chromosome 7 Deletions

  Full and partial loss of chromosome 7 (del7, 7q-) are prevalent cytogenetic abnormalities in pediatric myeloid neoplasms resulting in haploinsufficiency of key hematopoietic regulators on chromosome 7. While the genomic landscape of myeloid neoplasms in adults with del7 and 7q- has been described, pediatric patients with similar chromosome 7 losses have not been compiled into a single, comprehensive study utilizing modern sequencing strategies. To this end, we assembled a cohort of 108 pediatric and young adult patients representing a mixture of diagnoses. Using WGS, WES, and RNAseq, we compared the co-occurring mutations and gene expression levels in our cohort to those found in pediatric and young adult patients with two intact copies of chromosome 7. We also performed single-cell multi-omics on a subset of eight samples.

  Study EGAS00001008055

• Antisense long non-coding RNAs are deregulated in skin tissue of patients with systemic sclerosis

  Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis of skin and multiple organs of which the pathogenesis is poorly understood. Here we studied differentially expressed coding and non-coding genes in relation to SSc pathogenesis with a specific focus on antisense non-coding RNAs. Skin biopsy-derived RNAs from fourteen early SSc patients and six healthy individuals were sequenced with ion-torrent and analysed using DEseq2. Overall, 4901 genes with a fold change >1.5 and a false discovery rate < 5% were detected in patients versus controls. Upregulated genes clustered in immunological, cell adhesion and keratin-related processes. Interestingly, 676 deregulated non-coding genes were detected, 257 of which were classified as antisense genes. Sense genes expressed opposite of these antisense genes were also deregulated in 42% of the observed sense-antisense gene pairs. The majority of the antisense genes had a similar effect sizes in an independent North American dataset with three genes (CTBP1-AS2, OTUD6B-AS1 and AGAP2-AS1) exceeding the study-wide Bonferroni-corrected ρ-value (PBonf<0.0023, Pcombined = 1.1x10-9, 1.4x10-8, 1.7x10-6, respectively). In this study, we highlight that together with coding genes, (antisense) long non-coding RNAs are deregulated in skin tissue of SSc patients suggesting a novel class of genes involved in pathogenesis of SSc.

  Study EGAS00001002751

• Exome sequencing and disease analysis of a single family implicate a mutation in KIF1A in hereditary spastic paraparesis

  The study involves a single consanguineous Palestinian family with Hereditary Spastic Paraparesis (HSP). The affected individuals suffer from spasticity of the lower limbs and abnormal gait. Using exome sequencing and homozygosity mapping, our analysis implicated the causative mutation in the motor domain of KIF1A, a gene that functions in anterograde axonal transportation.

  Study phs000359

• Exome Sequencing of Chordoma Cases

  Chordoma is a rare tumor that is believed to develop from notochord remnants. We previously identified germline duplication of the TBXT gene as a major susceptibility mechanism in several chordoma families. Currently, we are using whole exome sequencing to identify additional susceptibility genes in chordoma families without TBXT duplication as well as in sporadic cases.

  Study phs001280

• HNF1B induced three-dimentional genome analysis of patient-derived pancreas neoplasm organoids

  Three-dimensional (3D) genome structures are organized in a hierarchy of various module layers, including chromosome compartment, topologically associating domain, and enhancer-promoter loop. These modules are important in regulating cell type specific gene expression. Here, we aimed to elucidate how 3D genome organization is related to regulating subtype specific genes in pancreatic neoplasms.

  Study JGAS000514

• Immunoreactive_p53_areas_in_human_skin_2

  Previous work has suggested that in mice there may be a difference in mutational burden between areas expressing stabilised p53 protein and others. We wish to see if this observation holds true in human sun-exposed epidermis. We will take 0.25mm punch biopsies from peeled human skin epidermis which will be submitted to the low input pipeline prior to sequencing.

  Study EGAS00001004463

• Chordoma_Targeted_Sequencing_Study

  This Study uses a focused bespoke bait pull down library method to target findings of Chordoma whole genome and whole exome sequencing studies in order to validate findings. This method will also be used on a larger set of tumour only samples in order to find precedence of these findings in a larger set of patient samples.

  Study EGAS00001000280

• RNAseq_Pulldown_

  We propose to definitively characterise the somatic genetics of ER+ve, HER2-ve breast cancer through generation of comprehensive catalogues of somatic mutations in breast cancer cases by high coverage genome sequencing coupled with integrated transcriptomic and methylation analyses. In this experiment cDNA derived form Breast Cancer Cell lines was used in an Agilent whole exome pulldown experiment.

  Study EGAS00001000230

• Osteosarcoma_Targeted_Sequencing_Study

  This Study uses a focused bespoke bait pull down library method to target findings of Osteosarcoma whole genome and whole exome sequencing studies in order to validate findings. This method will also be used on a larger set of tumour only samples in order to find precedence of these findings in a larger set of patient samples.

  Study EGAS00001000278

• Meningioma_Targeted_Sequencing_Study

  This Study uses a focused bespoke bait pull down library method to target findings of Meningioma whole genome and whole exome sequencing studies in order to validate findings. This method will also be used on a larger set of tumour only samples in order to find precedence of these findings in a larger set of patient samples.

  Study EGAS00001000282

• Spinocerebellar ataxia type 3 RNA-sequencing study

  RNA-Sequencing from human post-mortem Spinocerebellar ataxia type 3 patients. This sequencing experiment was carried out to validate that the transcriptional changes of an Ataxin-3 knock-in mouse model (expressing an expansion of 304 CAG/CAAs either heterozygous or homozygous in the murine Ataxin-3 locus) represent that transcriptional changes seen in the human disease.

  Study EGAS00001004241

• Whole genome sequencing of AVM endothelial and non-endothelial cell fractions

  We previously identified somatic activating KRAS mutations in a majority of human arteriovenous malformations (AVMs), using whole exome sequencing, which were enhanced in AVM endothelial cell fractions. We have now performed whole genome sequencing on AVM endothelial and non-endothelial cell fractions, as well as paired blood samples, in order to identify further somatic mutations.

  Study EGAS00001006719

• scRNA-seq to study interactions between HSPCs, BMSCs and immune microenvironment

  Mechanisms of clonal evolution in myeloid neoplasms remain incompletely understood. Darwinian theory predicts that the (micro)environment of clone-propagating stem cells may contribute to clonal selection. Here, we provide data fitting this model, establishing a relationship between stromal niche inflammation, inflammatory stress in HSPCs, clonal resistance and leukemic evolution in human MDS.

  Study EGAS00001008181

• Adeno-associated virus in the liver: natural history and consequences in tumor development

  Adeno-associated virus (AAV) is a defective mono-stranded DNA virus, endemic in human population (35-80%). Recurrent clonal AAV2 insertions are associated with the pathogenesis of rare human hepatocellular carcinoma (HCC) developed on normal liver. This study aimed to characterize the natural history of AAV infection in the liver and its consequence in tumor development. In silico analyses using viral capture data explored viral variants and new clonal insertions. Clonal AAV insertions were positive selected during HCC development on non-cirrhotic liver challenging the notion of AAV as a non-pathogenic virus.

  Dataset EGAD00001004484

• BLUEPRINT EpiVar ChIP-seq for naive CD4+ T-cells

  BLUEPRINT EpiVar ChIP-seq for naive CD4+ T-cells

  Study EGAS00001000753

• Identification of the mutational consequences of precancerous liver disease (including alcohol abuse) on the genomes of human adult stem cells.

  Stem cells are believed to be the cells-of-origin cancer. Nevertheless, their genome remains remarkably stable during life. To increase insight into how these cells can drive tumorigenesis, we set out to determine the genomic integrity of human adult stem cells from patients with liver disease associated with increased cancer risk. To this end, we characterized genome-wide mutation profiles of single ASCs from livers of patients with alcoholic liver disease, non-alcoholic liver disease and primary sclerosing cholangitis. The patients included in our study received a liver transplant due to their liver disease. Strikingly, we found that ASCs in these livers maintain a stable genome and have comparable mutation rates as healthy human liver ASCs. We did observe more nonsense and nonsynonymous mutations in COSMIC cancer genes that are hit by dominant mutations in tumors in comparison to healthy ASCs (n.s.), including two ASCs in alcoholic liver disease patients with a nonsense mutation in PTPRK. Next, we sequenced 5 biopsies of an alcoholic tumour to identify the mutational patterns in the tumour-initiating ASC. We found that the mutational patterns are, again, similar to healthy liver, but the mutational load is slightly higher. This suggests that the increased cancer risk in the liver disease patients is not caused by an increased mutational load, but rather that the precancerous liver environment promotes outgrowth of cells that would normally be selected against.

  Study EGAS00001002983

• Differentially methylated CpGs in response to growth hormone administration in children with idiopathic short stature

  Background: Recombinant human growth hormone (rhGH) has shown a great growth-promoting potential in children with idiopathic short stature (ISS). However, the response to rhGH differs across individuals, largely due to genetic and epigenetic heterogeneity. Since epigenetic marks on the methylome can be dynamically influenced by GH, we performed a comprehensive pharmaco-epigenomics analysis of DNA methylation changes associated with long-term rhGH administration in children with ISS. Results: We measured DNA methylation profiles before and after GH treatment (with a duration of ~18 months in average) on 47 healthy children using customized methylC-seq capture sequencing. Their changes were compared and associated with changes in plasma IGF1 by adjusting sex, age, treatment duration, and estimated blood proportions. We observed a considerable inter-individual heterogeneity of DNA methylation changes responding to GH treatment. We identified 267 response-associated differentially methylated cytosines (DMC) that were enriched in promoter regions, CpG islands and blood cell-type specific regulatory elements. Furthermore, the genes associated with these DMCs were enriched in the biology process of "cell development", "neuron differentiation" and "developmental growth", and in the TGF-beta signaling pathway, PPAR Alpha pathway, endoderm differentiation pathway, adipocytokine signaling pathway as well as PI3K-Akt signaling pathway, and cAMP signaling pathway. Conclusion: Our study provides a first insight in DNA methylation changes associated with rhGH administration, which may help understand mechanisms of epigenetic regulation on GH-responsive genes.

  Study EGAS00001006115

• Udated data for October 2017 data release for reference epigenomes generated at Centre for Epigenome Mapping Technologies, Genome Sciences Center, B.C. Cancer Agency as part of the International Human Epigenome Consortium.

  October 2017 data update (bam/fastq) for reference epigenomes generated at Centre for Epigenome Mapping Technologies (Canadian Epigenetics, Environment and Health Research Consortium), Genome Sciences Center, B.C. Cancer Agency, Vancouver, Canada as part of the International Human Epigenome Consortium.

  Dataset EGAD00001003906

• Dnase1l3 knockout causes aberrations in plasma DNA fragmentation

  Dnase1l3 knockout causes aberrations in plasma DNA fragmentation

  Study EGAS00001003174

• Genome-wide association study of prognosis in Crohn's disease

  Genome-wide association study of prognosis in Crohn's disease

  Study EGAS00001002147

• Peripheral Blood Transcriptome Analysis of ALS Patients

  Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are neurodegenerative disorders which overlap in their clinical presentation, pathology, and genetic origin. An over-representation of autoimmune disorders exists in both ALS and FTD, but this remains an unexplained epidemiologic observation. Expansions of a hexanucleotide repeat (GGGGCC) in the C9orf72 gene (GeneID:203228) are the most common cause of familial ALS and FTD (C9-ALS/FTD), leading to both repeat containing RNA and dipeptide accumulation coupled with decreased C9orf72 protein expression in brain and peripheral blood cells. Here we show that loss of C9orf72 in myeloid cells is sufficient to recapitulate the age dependent lymphoid hypertrophy and autoinflammation seen in complete C9orf72-/- mice. Dendritic cells isolated from C9orf72-/- mice showed marked early activation of the type I interferon response, and C9orf72-/- myeloid cells were primarily hyperresponsive to activators of stimulator of interferon gene (STING1 GeneID:340061), a key regulator of the innate immune response to cytosolic DNA. STING degradation through the autolysosomal pathway was diminished in C9orf72-/- mice myeloid cells, and blocking STING suppressed hyperactive type I interferon responses in C9orf72-/- myeloid cells and splenomegaly and inflammation in C9orf72-/- mice. Additionally, mice lacking one or both copies of C9orf72 were more susceptible to experimental autoimmune encephalitis, mirroring the susceptibility to autoimmune diseases seen in C9-ALS/FTD patients. Finally, we found that blood derived macrophages, peripheral blood monocytes, and brain tissue from C9-ALS/FTD patients all showed a hyperactive type I interferon signature compared to sporadic ALS/FTD subjects. Collectively, our results indicate that C9-ALS/FTD patients have an altered immunophenotype due to loss of C9orf72 regulation of STING mediated type I interferon activation.

  Study phs002055