23014 results for "ega"

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• snRNA and snATAC analysis of cocaine use disorder in human caudate nucleus

  We investigated cell type specific changes of gene expression and chromatin accessibility in the caudate nucleus of N=6 individuals with and N=8 individuals without cocaine use disorder using postmortem human brain samples. We performed single-nuclei RNA-sequencing and single-nuclei ATAC sequencing in the same cells using the 10xMultiome platform. The N=14 tissue donors were of African-American ancestry. The cohort consists of N=5 female and N=9 male individuals.

  Study EGAS50000000480

• ERDERA Diagnostic Research Workstream - WES reanalysis (distributed approach)

  The ERDERA Diagnostic Research Workstream – WES reanalysis (distributed approach) aims to improve diagnostic yield by systematically reanalyzing existing whole exome sequencing (WES) data from rare disease cases. The goal is to apply updated bioinformatics pipelines, novel variant interpretation tools, and the latest reference databases to detect clinically relevant variants that may have been missed in earlier analyses. By using a distributed approach across multiple expert groups, the project fosters collaborative interpretation and knowledge sharing to enhance diagnostic outcomes for patients.

  Study EGAS50000001514

• Immune activation in the tumor microenvironment of renal cell carcinoma

  Study describes immunological responses to immunotherapy (anti-PD-1, pembrolizumab) and targeted therapy (VEGFR inhibition, axitinib) as well as anti-CD3/CD28/CD2 (Immunocult) in a patient-derived ex vivo tumor model of renal cell carcinoma. Patient-derived ex vivo tumor models were established and their treatment response studied using material from eight renal cell carcinoma patients. Samples were collected under informed consent in HUS Helsinki University Hospital, Finland. The study aims to understand immunological treatment responses in the patient tumor microenvironment.

  Study EGAS50000001349

• RNAseq of 704 patients with soft tissue tumors

  The dataset contains transcriptome sequencing (RNA-seq) data of 704 soft tissue tumors (STT) from 704 patients. The sequencing data comes in FASTQ format and contains 1408 files. A total of 56 different STT types were included in the present study and each tumor type was represented by >2 samples. The vast majority of the patients had been diagnosed and treated at the sarcoma centers in Lund (Sweden) or Stockholm (Sweden) during the period 1988-2020, but also a few samples from other centers, obtained through previous collaborative projects, were included. RNA was extracted from fresh frozen tumor material and samples were primary lesions unless otherwise indicated. The sequencing was performed using 2x150 bp paired-end chemistry on a series of Illumina instruments at various facilities during the period 2013-2023.Samples were obtained after informed consent from the patients and the study was approved by the regional ethics committee (Etikprövningsmyndigheten, Uppsala, dnr 2023-01550-01, dnr 2025-02997-02).

  Dataset EGAD50000002120

• ATAC-seq iPSC cells or smNPC cells for allelic imbalance

  In order to confirm the predicted impact of the PD-associated allele of rs144814361 on BAG3 promoter, we proceeded with genome editing of the TH-REP1 cell line by using prime editing to insert the “T” allele at the position chr10:119651405 in the BAG3 promoter. 3 replicates for each condition: 1) iPSC Wild Type 2) SNP-BAG3 variant in iPSC 3) SNP-BAG3 variant in smNPC. Allelic imbalance is further assessed using read counting at this specific position.

  Study EGAS50000001579

• Access to "A Spatially Resolved Single-Cell Atlas of the Human Fetal Olfactory System"

  The human nasal region arises from neural crest and placodal lineages, yet its early development remains poorly understood owing to limited fetal tissue access and structural complexity. Here we present an integrated single-nucleus and spatial transcriptomic atlas of the human fetal nasal region, generated from 10 fetuses (males and females) between 7 and 12 post-conceptional weeks. Single-nucleus RNA sequencing resolved 32 distinct cell types, while integration with multiplexed error-robust fluorescence in situ hybridization (MERFISH) enabled spatial and temporal mapping of gene expression dynamics across the olfactory epithelium (OE) and adjacent tissues. We identify novel markers of olfactory sensory neuron differentiation and pathways governing epithelial patterning and OE morphogenesis. Notably, spatially organized expression of 169 olfactory receptor genes reveals molecular evidence for the “one neuron-one receptor” principle during the first trimester. Together, this work establishes the first molecular and spatial framework of early human olfactory development and provides a foundational resource for studies of sensory neurogenesis and congenital disorders.

  Dac EGAC50000000688

• Insights into Adult Gut Microbiota Composition Using the Estonian Cohort

  This study explores the gut microbiota of 1,826 adult individuals, predominantly from the Estonian population. The cohort includes 16S rRNA gene V4 region amplicon sequencing data along with metadata, such as age, sex, health status, anthropometric parameters, and stool consistency. The research aims to characterise the microbial community structure, identify distinct enterotypes, and examine their associations with host characteristics. The dataset provides a valuable reference for understanding gut microbiota composition and supports research in personalised nutrition and lifestyle-related health strategies.

  Study EGAS50000001611

• Transcriptome analysis of human iPSC-derived microglia in a novel human 3D cortical tissue model

  scRNA-seq analysis of human iPSC-derived microglia in a novel, human in vitro 3D cortical tissue model. Samples include three distinct conditions (each as biological duplicates): wild-type microglia extracted from cultures after 1 month (WT_1mo) and 3 months (WT_3mo) of culturing, as well as knock-in microglia extracted from cultures carrying three familial AD mutations in the APP gene (Swedish, Iberian, Arctic; introduced by CRISPR/Cas9-mediated knock-in) after 3 months of culturing (KI_3mo).

  Study EGAS50000000469

• scRNA-seq of a 3D human cortical tissue model from human iPSCs exploring WT versus APP KI genotypes as well as Abeta/Aducanumab treatments

  Single-cell RNA-seq analysis of human iPSC-derived microglia/astrocytes/neurons in a novel, human in vitro 3D cortical tissue model across cell lines, distinct genotypes (WT and APP KI) and in presence of Abeta/Aducanumab treatments. Samples include distinct conditions as described in the Study section. The dataset was generated using the BD Rhapsody technology and sequenced paired-end with Illumina NovaSeqX. Information on the multiplexing of samples is reported in the Analyses section.

  Study EGAS50000001397

• Personalized analysis of ctDNA for detection of molecular residual disease and recurrence in a cohort of surgically treated patients with head and neck squamous cell carcinoma

  Despite advances in multimodal treatment, survival for patients with advanced head and neck squamous cell carcinoma (HNSCC) has improved only modestly. The recent advent of tumor-informed assays capable of detecting circulating cell-free tumor DNA (ctDNA) has enabled early detection of molecular residual disease (MRD) and recurrence following curative therapy. We assessed ctDNA in plasma from 76 and saliva from 54 HNSCC patients, respectively, who received primary curative-intent surgery.

  Study EGAS50000001018

• VariantMedium: Sensitive and generalizable somatic point mutation calling with 3D DenseNets trained and evaluated on experimental confirmation data

  This study contains whole-exome sequencing (WES) and results of targeted deep-sequencing data of three matched tumor and normal cell lines, with two technical WES replicates each. The calls by Mutect2, Strelka2, and VariantMedium were confirmed using targeted deep sequencing on Illumina Miseq The targeted deep sequencing was performed in three runs and the results are summarized under VCF files, with labels determined for 1663 point mutations and 201 insertion-deletions.

  Study EGAS00001007633

• Chromosomal instability shapes the tumor microenvironment of oesophageal adenocarcinoma via a cGAS–chemokine–myeloid axis

  This study employed whole-genome sequencing (WGS) to investigate genomic alterations in oesophagogastric adenocarcinoma, with a focus on mechanisms of chromosomal instability. Twelve tumour samples were analysed, including specimens obtained prior to neoadjuvant chemotherapy and at surgical resection. WGS was used to identify structural variants, quantify tumour mutational burden, and detect potential driver mutations across samples. The study aimed to correlate genomic measures of chromosomal instability with clinicopathological features to improve understanding of tumour biology.

  Study EGAS50000001561

• Khoe-San Genome Project

  The dataset contains BAM files of whole genome sequencing data of African Khoe-San population (n=169, 30X coverage) recruited from South Africa and Namibia. The population captured the true extent of human genetic diversity as represent the earliest diverged human population. The project described a detailed divergence of human population and identified positive selections associated forager lifestyles in Khoe-San population. These findings emphasise an inclusive catalogue with better representation of the earliest human genomic diversity to better advance biomedical research.

  Study EGAS50000001408

• Multifocal cohort analysis unveils cell types associated with regional lymph node seeding in prostate cancer

  The aim of this project was to assess the effect of intratumor heterogeneity on pathological and molecular markers in locally advanced prostate cancer. We demonstrate how primary lesions with a higher metastatic potential more closely resemble the state in the metastatic lymph nodes, for some biological signatures. Finally, we developed a statistical procedure to identify the most likely seeding lesion and introduced a statistical testing procedure to leverage the intratumor heterogeneity to identify signatures that characterize the seeding lesion.

  Study EGAS00001006715

• Jeju Genome Project

  The Jeju Genome Project (JGP) is a multi-omics resource for precision medicine in a geographically distinct South Korean population. It comprises 5,309 participants (3,001 community-based; 2,308 hospital-based) with data spanning Whole-Genome Sequencing (WGS) and genotyping arrays. The hospital cohort is specifically enriched for neurological and rheumatic diseases and malignancies. By providing a population-specific reference panel, JGP enables high-resolution genetic architecture analysis, risk stratification, and the discovery of rare variants relevant to Jeju and broader East Asian populations.

  Study EGAS50000001706

• Melanoma_TIL_Study_Exomes

  In this study, mutations present in a series of human melanomas (stage IV disease) will be determined, using autologous blood cells to obtain a reference genome. From each of teh samples that are analyzed, tumour-infiltrating T lymphocytes have also been isolated. This offers a unique opportunity to determine which (fraction of) mutations in human cancer leads to epitopes that are recognized by T cells. The resulting information is likely to be of value to understand how T cell activating drugs exert their action.

  Study EGAS00001000216

• RNA sequencing of CD8 T cells from melanoma patients prior to and during checkpoint immunotherapy and untreated healthy controls

  We are interested in inter-individual variation in transcriptional response to immune checkpoint blockade. We have analysed poly A purified RNA expression from CD8 T cells (297 transcriptomes in total) isolated from metastatic melanoma patients (n=106) prior to and during treatment with either single agent (Pembrolizumab) or combination (Ipilimumab/ Nivolumab) immune checkpoint blockade. We compare expression at different stages of treatment and additionally contrast this with that from healthy controls (n=68).

  Study EGAS00001004081

• iNeuron_RNAseq

  Characterisation of a timecourse of differentiation of induced cortical excitatory neurons generated by overexpression of the Ngn2 transcription factor transgenically in BOB iPSCs. The aim is to understand the differentiation trajectory undergone in this process, and characterise the transcriptome in these cells for further disease modelling. This data is part of a pre-publication release. For information on the proper use of pre-publication data shared by the Wellcome Trust Sanger Institute (including details of any publication moratoria), please see http://www.sanger.ac.uk/datasharing/

  Study EGAS00001004238

• LCM-ATACseq on human lung macrophages

  In this study we employed Laser Capture Microdissection (LCM) for the multimodal profiling of lung macrophages cell populations as a function of location within the healthy tissue. In detail, macrophage mini-bulks (~100 cells) were collected from 4 healthy human donors in 5 different locations of the airways (a total of 20 biopsies), including parenchyma (L1 – lower left lobe (LLL); L6 – 80% distance from LLL tip), trachea (L2), bronchi (L3 – 1st/2nd generation; L5 – 3rd/4th generation), and processed for ATAC-seq.

  Study EGAS00001006167

• Combined targeting of BRD4-associated Promoter Activation and NFKB Immunomodulation in ARID1A-mutated Gastric Adenocarcinoma

  Gastric cancer (GC) a leading causes of cancer-related deaths worldwide, with ARID1A identified as the second most frequently mutated driver gene in GC. This study involves comprehensive genomic profiling of a Singaporean cohort of over 200 GC patients to characterize the mutational signatures associated with ARID1A inactivation across various molecular subtypes of GC. The findings highlight a potential therapeutic approach for ARID1A-mutated GCs, targeting both tumor-intrinsic mechanisms (BRD4-associated promoter activation) and extrinsic immunomodulatory pathways (NFKB signaling).

  Study EGAS00001006397

• Identification_of_low_frequency_variants_associated_with_ulcerative_colitis_using_whole_genome_sequencing

  2000 ulcerative colitis cases drawn from the UKIBD Genetics Consortium cohort and whole-genome sequenced at 2X depth. A case control association study using control samples whole-genome sequenced by UK10K will be undertaken to identify common, low-frequency and rare variants associated with ulcerative colitis. Data will be combined with similar data across 3000 Crohn's disease cases from the same cohort to identify inflammatory bowel disease (IBD) loci and better understand the genetic differences and similarities of the two common forms of IBD.

  Study EGAS00001000329

• Investigating genetic susceptibility to rheumatic heart disease in Oceania

  This case-control study investigated susceptibility to rheumatic heart disease in over 3,000 individuals recruited across eight Oceanian countries. Cases were patients with rheumatic heart disease and controls were members of the general population. In addition to the Illumina HumanCore-24 BeadChip genotyping, a subset of 128 samples were analysed using the higher density Illumina HumanOmniExpressExome BeadChip of which 64 were also analysed using low coverage sequencing with the Illumina HiSeq 4000 platform.

  Study EGAS00001001881

• Exome_sequencing_of_Congenital_Heart_Disease_families_Leuven

  This project aims to study at least 90 exomes from families with congenital heart disease. The samples have been selected in Leuven in collaboration with Koen Devriendt. Ethic approval has been sought for in Leuven, Belgium and a HDMMC agreement for submitting these samples is in place at the WTSI. The phenotype we wil primarily focus our analysis is severe Left Ventricular Outflow Tract Obstructions (LVOTO) and Atrioventricular Septal Defect (AVSD). The indexed Agilent whole exome pulldown libraries will be sequenced on 75bp PE HiSeq (Illumina).

  Study EGAS00001000185

• Barcelona_kids_with_melanoma

  This set of samples is composed of eight young people (7-16 years old) that have developed melanoma with first-degree relatives that have also developed cancer, which suggests a genetic component to their disease. Here we want to sequence these samples in order to find the causative mutations. As these samples do not carry any of the high-penetrance mutations known to date, finding the genes(s) responsible will offer new insights into the genetic mechanisms underlying predisposition to melanoma.

  Study EGAS00001000733

• Mutational spectrum of highly differentiated, fusion-negative rhabdomyosarcoma (set 1).

  Pediatric PAX-FOXO1 fusion-negative rhabdomyosarcoma represents a diverse spectrum of tumors. In this study, the mutational spectrum of 22 fusion-negative rhabdomyosarcomas with high, rhabdomyoma-like levels of differentiation was evaluated using OncoPanel v.2 (OPv2), an Agilent SureSelect custom designed bait set consisting of the coding regions of 504 cancer-relevant genes. Corresponding normal tissue was not available. Discarded normal human skeletal muscle, obtained from 7 donors without tumor history, were also included in the sequencing run.

  Study EGAS00001002630

• Whole_genome_sequence_of__third_generation_family_member__SFHS_

  Previously we performed deep WGS on 6 parents and 13 children from 3 large families from the Scottish Family Health Study to identify de novo mutations. This prelim is cover the additional sequencing of one grandchild from one of these three families. The inclusion of a third generation individual will provide additional experimental validation for the de novo mutations found in the initial trio. As in the previous study, the DNA will be WGS to a depth of approximately 25X to achieve this purpose.

  Study EGAS00001000429

• Small cell carcinoma of the ovary, hypercalcemic type, displays frequent inactivating germline and somatic mutations in SMARCA4

  Small cell carcinoma of the ovary of hypercalcemic type (SCCOHT) is an extremely rare, aggressive cancer affecting children and young women. We identified germline and somatic inactivating mutations in the SWI/SNF chromatin-remodeling gene SMARCA4 in 75% (9/12) of SCCOHT patients in addition to SMARCA4 protein loss in 82% (14/17) of SCCOHT tumors, but in only 0.4% (2/485) of other primary ovarian tumors. These data implicate SMARCA4 in SCCOHT oncogenesis.

  Study EGAS00001000714

• AML_targeted_resequencing_study

  Genomic libraries will be generated from whole genome amplified genomic DNA derived from 3,000 myeloid neoplasms. Targeted capture will be performed by multiplexing 16 barcoded samples in each library. Pools of 96 DNA samples will be subjected to 1-2 lanes of HiSeq 75bp sequencing. Reads will be mapped to the current build of the human reference genome to facilitate the generation of a comprehensive catalog of somatic mutations associated with 116 known myeloid and cancer driver genes.

  Study EGAS00001000275

• MutWP5__CRUK_Mutographs_of_Cancer__Breast__Cancer_Mastectomy__Exome_

  Sequencing of LCM-derived microbiopsies from 30 women who underwent mastectomies due to a breast cancer diagnosis. Goal to assess the mutational burden, spectrum, and clonal dynamics within the tissue. Exome data will be used as a driver and clonality screen, highly clonal or driver-containing samples will subsequently be sent for whole-genome sequencing. Results from this portion of the study will be compared to women who had cosmetic breast reduction surgeries and those with germline BRCA 1/2 mutations.

  Study EGAS00001003319

• Targeted sequencing of brain expressed miRNA genes

  As regulators of gene expression, microRNAs (miRNAs) are likely to play an important role in the development of disease. In this study we present a large-scale strategy to identify miRNAs with a role in the regulation of neuronal processes by screening 289 brain expressed miRNAs. Thereby we found variant rs7861254 located near the MIR204 gene to be significantly associated with schizophrenia. This variant resulted in reduced expression of miR-204 in neuronal-like SH-SY5Y cells.

  Study EGAS00001001607

• Genomic, transcriptomic and epigenomic profiling of GCTB

  Giant cell tumor of bone is a rare bone neoplasm driven by oncogenic hotspot G34W/L/V mutations in the non-canonical histone variant H3.3. This study provides primary data of genomic (WGS), transcriptomic (RNA-seq) and epigenomic (histone mark ChIP-seq, WGBS, ATAC-seq) profiling of primary GCTB samples from several cohorts in Germany and Korea. We confirm the H3.3-G34 mutations as sole genetic drivers of GCTB, and describe the epigenetic alterations in mutant GCTB stromal cells.

  Study EGAS00001003730

• Sequencing of serial plasma and multiregional tumor samples in a patient with metastatic breast cancer

  Circulating tumor DNA analysis can be used to track tumor burden and analyze cancer genomes non-invasively but the extent to which it represents metastatic heterogeneity is unknown. Here, we follow a patient with metastatic ER and HER2 positive breast cancer receiving two lines of targeted therapy over 3 years. We characterize genomic architecture and infer clonal evolution in 8 tumor biopsies and 9 plasma samples collected over 1,193 days of clinical follow-up using exome and targeted amplicon sequencing.

  Study EGAS00001001466

• Genetic landscape of relapsed DLBCL

  Diffuse large B-cell lymphoma is a heterogenous malignancy that can arise de novo or can result from histologic transformation from indolent lymphomas. Considerable sequencing effort has been placed on determining the mutations that are common at the time of diagnosis in DLBCL but little is known about the nature of relapsed disease. We have sequenced tumour and matched normal exomes of 38 rrDLBCL patients including 25 de novo DLBCLs and 13 transformed lymphomas to identify somatic mutations and copy number alterations associated with relapse.

  Study EGAS00001001553

• Fixative optimisation study for BRITROC project

  The British Translational Research Ovarian Cancer Collaborative (BriTROC), spanning more than 10 centres across UK, is a prospective observational project focused on relapsed high-grade serous ovarian cancer (HGSOC). The first study, as a part of the project, is the Fixative optimisation study, which analyses the utility for next-generation sequencing of UMFIX samples compared to NBF-fixed and fresh frozen samples. Various DNA and sequencing quality analyses were performed to compare fixation methods in bulk tumour and biopsy samples.

  Study EGAS00001001433

• The Jerusalem Perinatal Study (JPS) aimed to examine the developmental origins of cardiometabolic risk.

  The Jerusalem Perinatal Study (JPS) aimed to examine the developmental origins of cardiometabolic risk and explore the mechanisms underlying the associations between perinatal characteristics and the development of risk for adult chronic disease. In other words, the cohort has enabled the examination of associations between maternal and paternal characteristics with cardiometabolic risk variables in offspring at various points in the life course, as well as the effect of longitudinal changes in characteristics in both parents and offspring.

  Study EGAS00001004075

• Exome_Sequencing__to_Identify_Causes_of_Leukaemia_Predisposing_Congenital_Neutropenias

  The objective of this study is to identify the causative genes in two unrelated congenital neutropenia families. We aim to whole exome sequence the affected individuals, unaffected siblings and parents in both cases in an effort to idenitfy the causative genetic mutation. Exome capture will be performed using Agilent SureSelect system. Subsequently, exome libraries will sequenced using the Illumina HiSeq platform. Sequence variant calling will be done in house and common variants excluded using public databases and data from unaffected family members.

  Study EGAS00001000100

• MeDALL epigenetics study

  MeDALL- (Mechanisms of the Development of ALLergy) is a collaborative project supported by the European Union under the Health Cooperation Work Programme of the 7th Framework programme (grant agreement number 261357).MeDALL epigenetics study includes illumina 450k methylation measurements from 4 cohorts: Infancia y Medio Ambiente (INMA), Etudes des Déterminants pré et postnatals précoces du développement et de la santé de l’ENfant (EDEN), Children’s Allergy Environment Stockholm Epidemiology study(BAMSE), and Prevention and Incidence of Asthma and Mite Allergy (PIAMA)

  Study EGAS00001002169

• Regions of common inter-individual DNA methylation differences in human monocytes.

  Based on whole genome bisulfite sequencing of five human monocytes from unrelated individuals, we have identified regions of common inter-individual DNA methylation differences, where methylation is inversely correlated with active histone marks, but not with the expression of the associated genes. Genome-wide association studies in 1128 individuals show that allelic DNA methylation is caused by genetic variation in cis. At some loci, DNA methylation appears to be affected also by genetic variation in trans.

  Study EGAS00001002265

• PCR-free HiSeqX whole genome sequence data on 120 samples with triplet repeat expansions (premutation and full expansions)

  Whole genome sequence (WGS) data was generated on 120 Coriell samples with the following validated repeat expansions: Fragile X Syndrome, Huntington disease, Friedreich’s ataxia, Amyotrophic Lateral Sclerosis, Myotonic Dystrophy, Spinocerebellar Ataxia 1/3 and Dentatorubral-Pallidoluysian Atrophy. These samples were sequenced using 2x150bp reads on an Illumina HiSeqX sequencer and the repeat expansions were called using ExpansionHunter to demonstrate the ability to call large repeats from high throughput, PCR-free WGS data.

  Study EGAS00001002462

• Next generation sequencing of sporadic schwannomatosis samples

  Schwannomatosis (MIM #162091) is characterized by the development of multiple schwannomas without vestibular nerve involvement (which is a characteristic of neurofibromatosis type 2 - NF2). In an effort to detect novel genetic alterations predisposing to schwannomatosis, we sequenced eight tumor-blood DNA pairs from de novo schwannomatosis patients. The results of our study are present in the paper "Whole exome sequencing reveals that the majority of schwannomatosis cases remain unexplained after excluding SMARCB1 and LZTR1 germline variants" published in Acta Neuropathologica (PMID:25008767)

  Study EGAS00001000767

• RNAseq___Discovery_of_resistance_mechanisms_to_the_BRAF_inhibitor_vemurafenib_in_metastatic_BRAF_mutant_melanoma

  We propose to biopsy 20 consented BRAF mutant melanoma patients at Addenbrooke's Hospital pre-treatment with vemurafenib and also upon the development of resistant disease, with the aim of using exome sequence and SNP6 data to identify novel sequence variants and copy number alterations that can be used to validate observed resistance mechanisms in our cell line models and also to use these models to inform as to likely candidate small molecule inhibitors to overcome resistance and that could be tested in the clinical trial setting.

  Study EGAS00001000813

• Genome-wide association study of response to warfarin in a UK prospective cohort

  Genome-wide association study of Warfarin dosing in 714 British, recruited in Liverpool and Birmingham. Three phenotypes were investigated: warfarin mean dose, warfarin mean stable dose, and INR over 4 during first week of treatment. Stability was defined by at least three INR measurements within target in a three week period. The samples were genotyped on the Illumina 610K chip and imputed using Impute v2.1, with a combined filtered set composed of HapMap 3 release 2 and 1000 genomes pilot 1 CEU.

  Study EGAS00001001130

• TERT rearrangements are frequent in neuroblastoma and identify aggressive tumors

  Whole genome sequencing detected structural rearrangements of TERT in 17/75 high stage neuroblastoma with 5 cases resulting from chromothripsis. Rearrangements were associated with increased TERT expression and targeted immediate up- and down-stream regions of TERT, placing in 7 cases a super-enhancer close to the breakpoints. TERT rearrangements (23%), ATRX deletions (11%) and MYCN amplifications (37%) identify three almost non-overlapping groups of high stage neuroblastoma, each associated with very poor prognosis. This submission contains all newly sequenced samples only.

  Study EGAS00001001479

• Comprehensive investigation of genome architecture of gastric adenocarcinoma with whole-genome sequencing in the Chinese population.

  In this study, we performed whole-genome sequencing (WGS) of 214 paired GC tumors and adjacent normal tissues to identify novel potential biomarkers. We extracted mutational signatures which induce somatic mutations and classified GC tumors into four groups with significantly different prognosis. Moreover, we observed copy number changes and structural variations frequently occurring in some cancer related genes. Our study covers a comprehensive genetic framework that can be used in clinical trials and treatment modalities in GC.

  Study EGAS00001002404

• Clonal_expansion_of_mutated_cell_population_in_bladder_urothelium_

  1cm biospies of from patients undergoing bladder cystectomy will be collected. The underlying muscle and stroma will be removed and the remaining epithelia dissected into small sequential areas which will be sent for ultra-deep exome sequencing using a panel of known cancer and viral genes. Sequence analysis using similar methods to Martincorena I et al (Science 2015, 348:880) will provide an idea of the somatic mutational landscape in these patient samples. Individual patient muscle samples will also be sequenced as a reference.

  Study EGAS00001001687