22938 results for "ega"

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• Distinct genomic profile and specific targeted drug responses in adult cerebellar glioblastoma

  Only a few studies have reported the molecular characteristics of adult cerebellar glioblastoma (C-GBM), a subtype comprising 1% of glioblastoma cases located within the infratentorial brain region due to the rarity. By identifying genomic profiles from 19 adult C-GBM samples, we revealed the genetic intertumoral heterogeneity in C-GBM as well as distinct genomic characteristics from those of supratentorial glioblastomas (S-GBMs), emphasizing the need of individualized therapies for C-GBM patients.

  Study EGAS00001002517

• Whole genome sequencing of patients affected by acute intermittent porphyria

  Acute intermittent porphyria (AIP) is an hereditary rare metabolic disorder of incomplete penetrance, affecting the biosynthesis of heme. IAP is an autosomal dominant disorder, resulting in a substantial reduction of the activity of the hydroxymethylbilane synthase coding gene (HMBS). Most HMBS mutation carriers are asymptomatic and only between 10% and 20% of patients present acute attacks of the associated symptoms. Here, we sequenced whole genomes of 16 AIP patients.

  Study EGAS00001004999

• Comparative genomics research for Chinese colorectal cancer

  In order to clarify the mechanisms of genesis and development of colorectal carcinoma, in this study, we performed comparative genomics research in Chinese colorectal cancer at various clinical stage via whole exon sequencing or whole genome sequencing. Comparative bioinformatical analysis was perform to find the difference on somatic single-nucleotide variants, short insert/deletion variants, genomic structural variants, and copy number variants between cancer tissue and normal tissue, or among cancer tissues at various clinical stages.

  Study EGAS00001002607

• Molecular characterization of endothelial cells under conditions associated with hematopoietic niche formation in humans

  Using a combinatory approach of cell purification and transcriptomics, we identify a subset of endoglin-expressing endothelial cells enriched in human bone marrow during fetal ontogeny and regeneration after chemotherapeutic injury. Comprehensive transcriptional characterization by massive parallel RNA sequencing of these cells revealed a remarkable phenotypic and molecular similarity to murine H endothelium as well as activation of pathways and angiocrine factors implicated in hematopoiesis, osteogenesis and angiogenesis.

  Study EGAS00001002736

• scRNA_seq_of_circulatory_immune_cells_from_Crohn_s_disease_patient_blood

  Whole blood from Crohn's disease patients with active inflammation in the terminal ileum was depleted of red blood cells and partially depleted of granulocytes before single cell sequencing using 10X genomics 3'v3 kit followed by Illumina sequencing (HS4000 and NovaSeq) 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 EGAS00001004150

• Multi-omics profiling of paired primary and recurrent glioblastoma patient tissues

  Despite maximal therapy with surgery, chemotherapy and radiotherapy, glioblastoma multiforme (GBM) patients have a median survival of only 15 months. Almost all patients inevitably experience symptomatic tumor recurrence. A hallmark of this tumor type is the large heterogeneity between patients and within tumors itself which relate to failure of standardized tumor treatment. In this study, tissue samples of paired primary and recurrent GBM tumors were investigated to identify individual factors related to tumor progression.

  Study EGAS00001004345

• Deep intronic homozygous variation in PSMC3 causes a syndromic neurosensory disorder combining deafness and cataract

  The association of congenital deafness and early-onset cataracts inherited as a recessive trait is a rare combination described in only a few syndromes with very few genes identified to date. We propose that the PSMC3 proteasome subunit dysfunction leads to a novel human syndrome that includes early-onset cataracts and deafness and suggest that Rpt5 plays a major role in inner ear and lens development.

  Study EGAS00001003942

• Preservation of stemness in high-grade serous ovarian cancer organoids requires low Wnt environment

  High-grade serous ovarian cancer (HGSOC) likely originates from the fallopian tube (FT) epithelium, but advanced stages are mostly found outside the FT. We used ex-vivo cultures of HGSOC and knock-out of tumor suppressors in FT organoids to study changes in epithelial cells and niche requirements for normal and transformed FT cells. We found that transformed cells require BMP signaling and are growth arrested in Wnt rich medium.

  Study EGAS00001003821

• RNA-Sequencing and Somatic Mutation Status of Adrenocortical Tumors: Novel Pathogenetic Insights

  To investigate the relationship between transcriptome profile and genetic background in a large series of adrenocortical tumors and to identify new potential pathogenetic mechanisms, we performed transcriptome profiling by high-throughput sequencing. We collected snap-frozen tissue from patients with adrenocortical tumors (n = 59) with known genetic background: 26 adenomas with Cushing syndrome, 17 adenomas with mild autonomous cortisol secretion, 9 endocrine-inactive adenomas, 7 adrenocortical carcinomas. Additionally, we sequenced 4 control samples.

  Study EGAS00001004533

• Genes___Health_imputed_genotype_dataset

  Genes & Health is a cohort of British Bangladeshi and British Pakistani individuals. In the Feb2020 data freeze, 28,022 individuals were genotyped on the Illumina Infinium Global Screening Array v3 chip (with the additional Multi-Disease variants). Imputation was performed using the Michigan Imputation Server with the GenomeAsia pilot reference panel, which contains 1,739 genomes and 642 from them are from South Asian groups. This dataset contains imputed SNPs with imputation accuracy >0.3 and MAF >0.1%.

  Study EGAS00001005373

• Investigation of the keratinocytic gene expression pattern in Hidradenitis suppurativa

  The underlying pathogenetic factors generating the innate immune signal necessary for T cell activation, initiation and chronification of Hidradenitis suppurativa (HS, also known as Acne inversa) are still poorly understood. Emerging evidence suggests that defective keratinocyte function critically contributes to HS disease development and progression. To elucidate the role of keratinocytes in HS lesion formation, we compared the transcriptomes of isolated lesional and perilesional HS epidermis by RNA sequencing.

  Study EGAS00001005544

• Whole-exome sequencing of ovarian clear cell carcinoma in clinical outliers

  Whole-exome sequencing dataset for the Australian Ovarian Cancer Study (AOCS) and The Jikei University School of Medicine (JIKEI) ovarian clear cell carcinoma (OCCC) clinical outliers project, representing 10 donors. Although OCCC are commonly resistant to platinum based chemotherapy, good clinical outcomes are observed in a subset of patients. Exome sequencing was performed in 10 patients who had either unusually long survival (N=5) or had a very short time to progression (N=5).

  Study EGAS00001004248

• Targeted sequencing of paired tumour/blood of 34 T1 stage bladder cancer patients

  Stage T1 bladder cancer presents a high risk of progression and requires improved understanding. In continuation of our whole-exome sequencing study on this subtype of the disease, we carried out this targeted paired tumour/blood sequencing study including 34 T1 stage bladder cancer patients. Agilent’s SureDesign tool was used to design a 1.133 Mb SureSelect custom capture for all coding exons of the 140 selected candidate genes.

  Study EGAS00001005767

• BCR_repertoire_sequencing

  Isotype-specific B-cell receptor repertoire sequencing in six immune-mediated diseases at diagnosis and during therapy reveals an unexpectedly complex B-cell architecture, which may provide a platform for a better understanding of pathological mechanisms and treatment responses. 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 EGAS00001003185

• Single-cell RNA sequencing of 6 follicular lymphoma tumors

  Follicular lymphoma (FL) is an indolent cancer of mature B-cells but carries increased risk of transformation to a more aggressive histology over time. We present here comprehensive profiling both tumor and immune compartments in 6 diagnostic FL biopsies by single-cell RNA sequencing. This confirmed results from 155 FL tumors characterized by mass cytometry (CyTOF) which revealed two distinct evolutionary trajectories with disparate risk of transformation and alternate biologies.

  Study EGAS00001005257

• Comprehensive molecular characterization of brainstem glioma

  Brainstem gliomas are the most devastating and lethal tumors. Survival rates are among the lowest in all cancers and options for intervention are likewise low. Due to anatomical delicacy of these areas, resection of tumors is particularly difficult and attempted resections have high perioperative mortality rates. Genomic and epigenetic studies often provide a gateway to functional studies of specific classifications of tumors that can lead to major breakthroughs in diagnosis and treatment options.

  Study EGAS00001004341

• Sequencing of an organoid biobank for childhood soft tissue sarcoma.

  Rhabdomyosarcomas are diverse tumors of mesenchymal origin and the most common childhood soft tissue sarcoma. Patients receive intense treatment with a nevertheless poor prognosis for high-risk patients. New therapy would benefit from additional preclinical models and their rapid establishment. Tumor organoid models (tumoroids) have so far only been established from epithelial cancers. Here, we describe generation and characterization of a collection of pediatric RMS tumoroids comprising all major subtypes.

  Study EGAS00001005912

• Dual-mTOR inhibitor Rapalink-1 reduces prostate cancer patient-derived xenograft growth and alters tumor heterogeneity

  Bone metastasis is the leading cause of prostate cancer (PCa) mortality, frequently marking the progression to castration-resistant PCa. In this study, we compared the molecular pathways enriched in a set of bone metastasis from breast and prostate cancer from snap-frozen tissue. To further model PCa drug resistance mechanisms, we used two patient-derived xenografts (PDX) models of bone-metastatic PCa, BM18 and LAPC9.

  Study EGAS00001004431

• Single-cell analysis for metastatic gastric adenocarcinoma

  Intra-tumoral heterogeneity (ITH) is the fundamental property of cancer, however, the origins of ITH remain poorly understood. Here we performed single-cell RNA sequencing of peritoneal carcinomatosis (PC) from patients with advanced gastric adenocarcinoma (GAC), constructed a transcriptome map of 45,048 PC cells, profiled the transcriptome states of diverse tumor cell lineages and types, incisively explored ITH of PC tumor cells, and identified significant correlates with patient survival.

  Study EGAS00001004443

• Integration of genomics and metabolomics in acute myeloid leukemia

  Although targeting of cell metabolism is a promising therapeutic strategy in acute myeloid leukemia (AML), metabolic dependencies are largely unexplored. We aimed to classify AML patients based on their metabolic landscape and map connections between metabolic and genomic profiles. The intracellular metabolome distinguished three AML clusters, correlating with distinct genomic profiles: NPM1-mutated(mut), chromatin/spliceosome-mut and TP53-mut/aneuploid AML that were confirmed by biofluid analysis.

  Study EGAS00001005422

• Cell types of the human retina and its organoids at single-cell resolution. Cowan et al

  Human organoids recapitulating the cell-type diversity and function of their target organ are valuable for basic and translational research. We developed light-sensitive human retinal organoids with multiple nuclear and synaptic layers, and functional synapses. We sequenced the RNA of 285,441 single cells from these organoids at seven developmental time points and from the periphery, fovea, pigment epithelium and choroid of light-responsive adult human retinas.

  Study EGAS00001004561

• Differential gene expression in the colon mucosa of irritable bowel syndrome patients with mixed type symptoms

  The aim of this study is to characterize the pathophysiology of the irritable bowel syndrome (IBS) on the functional level and in parallel on the gene expression level. For this purpose RNAseq of mucosal biopsies was performed. The data from the differential expression analysis will be further processed by Ingenuity Pathway Analysis (IPA) software to gather Information on activated or inhibited signaling pathways in the disease.

  Study EGAS00001004835

• International consensus definition of DNA methylation subgroups in juvenile myelomonocytic leukemia

  Known clinical and genetic markers have limitations in predicting disease course and outcome in juvenile myelomonocytic leukemia (JMML). DNA methylation (DNAme) patterns in JMML have correlated with outcome across multiple studies, suggesting it as a biomarker to improve patient stratification. However, standardized approaches to classify JMML based on DNAme patterns are lacking. We therefore sought to define an international consensus for DNAme subgroups in JMML and develop classification methods for clinical implementation.

  Study EGAS00001004682

• Detection of maternal DNA contamination in the placenta

  We use whole-genome sequencing of monozygotic (and dizygotic) twins to detect somatic mutations to infer the cellular history of the twinning event. We recruited monozygotic twins with varying degrees of fetal membranes to compare the twinning events between theses subsets. We used blood, buccal epithelial cell, placenta, and umbilical cord to trace the embryonic somatic mutations. Using the somatic mutations from various tissues we infer the approximate timing of twinning in each monozygotic twin subtypes.

  Study EGAS00001006155

• UROMOL 2020 - SNP data

  The molecular landscape in non-muscle-invasive bladder cancer (NMIBC) is characterized by large biological heterogeneity with variable clinical outcomes. Here, we performed a large integrative multi-omics analysis of patients diagnosed with NMIBC (n=834). Transcriptomic analysis identifies four classes (1, 2a, 2b and 3) reflecting tumor biology and disease aggressiveness. Both transcriptome-based subtyping and the level of chromosomal instability provide independent prognostic value beyond established prognostic clinicopathological parameters.

  Study EGAS00001004862

• Clinical impact of immune checkpoint inhibitor (ICI) response, DNA damage repair (DDR) gene mutations and immune-cell infiltration in subtypes of metastatic melanoma

  Our study identified that immune cell infiltration and DNA damage repair (DDR) gene mutations may have an impact in response to immune checkpoint inhibitors (ICI) treatment in metastatic melanoma but differs among melanoma subtypes. Therefore, a comprehensive understanding of the role of immune infiltration cells, DDR gene mutations and copy number alterations could act as prognostic biomarkers for the ICI treatment among metastatic melanoma subtype patients.

  Study EGAS00001005781

• RNA sequencing data of in vitro differentiated megakaryocyte cells transduced with E527K and WT SRC

  For RNA sequencing (RNAseq), CD34+ hematopoietic stem cells (HSC) were isolated from healthy controls before transduction with WT-SRC and E527K-SRC lentiviral vectors in triplicate and differentiation to MK. RNA was extracted from the complete cell population as the aim was to detect differences in genes regulating MK maturation and differentiation. A total of six WT-SRC and six E527K-SRC RNA samples were used for RNAseq to identify differentially expressed genes.

  Study EGAS00001005808

• glioblastoma single cell RNAseq

  Understanding the cellular origin and differentiation status of glioblastoma is critical to resolve the etiology of the disease. we profile 18 patient glioblastomas by single cell RNA sequencing (scRNAseq). From this, we uncovered two principal cell-of-origin relations. Each lineage displays unique directional differentiation trajectories and transcriptional cores from the naïve cell populations. Thus, glioblastoma is defined by robust cell lineage features which may provide insights into the cell origin of the diseases.

  Study EGAS00001006236

• RNA-sequencing of mechanical stress induced osteoarthritis-like damage in aged human cartilage explants treated with the anti-deiodinase iopanoic acid

  The current study aimed to confirm chondroprotective effects of the D2 inhibitor iopanoic acid (IOP) in an ex vivo aged human osteochondral explant model in which injurious mechanical stress is applied to inflict OA-like damage. This dataset contains RNA-seq (Illumina HiSeq X ten) of osteochondral explant cartilage from aged human patients that underwent a joint replacement surgery due to OA (N=10 donors; n=21 explants).

  Study EGAS00001006242

• Whole blood transcriptomic analysis of ANCA-associated vasculitis

  Whole blood mRNA sequencing from 30 patients with AAV (granulomatosis with polyangiitis/GPA, n=22) and microscopic polyangiitis (MPA, n=8) combined with functional enrichment and network analysis for aberrant pathways. Key genes and pathways were validated in an independent cohort of 18 AAV patients. Co-expression network and hierarchical clustering analysis, identified molecular endotypes. Multi-level transcriptional overlap analysis to SLE was based on our published data from 142 patients.

  Study EGAS00001006704

• EXCEED Study

  EXCEED is a longitudinal population-based cohort which facilitates investigation of genetic, environmental and lifestyle-related determinants of a broad range of diseases and of multiple morbidity through data collected at baseline and via electronic healthcare record linkage. Recruitment has taken place in Leicester, Leicestershire and Rutland since 2013 and is ongoing, with approximately 10,000 participants aged 30-69 to date. The population of Leicester is diverse and additional recruitment from the local South Asian community is ongoing.

  Study EGAS00001003499

• GINS3 fibroblast RNAseq

  The eukaryotic CDC45/MCM2-7/GINS (CMG) DNA helicase unwinds the DNA double helix during DNA replication. We report the identification of individuals presenting with a Meier-Gorlin syndrome (MGS) like phenotype, secondary to hypomorphic variants in the GINS3 gene.  To verify whether the GINS3 variant affected the transcriptome, RNA-seq was performed from 3 fibroblast cultures derived from a patient with compound heterozygous GINS3 variants, and 1 replicate of fibroblasts derived from each of the two parents.

  Study EGAS00001006038

• Profiling of 27 type 2 diabetes GWAS loci using next-generation (NG) capture C in a human beta-cell model

  Most type 2 diabetes association signals are due to variants that impact gene regulation but identifying the genes they impact is challenging. We generated interaction profiles at 27 T2D GWAS loci using next-generation (NG) capture C in a human beta-cell model ( EndoC-betaH1) and contrasted our maps with public Hi-C/promoter capture Hi-C maps in EndoC-betaH1 cells or human islets.

  Study EGAS00001006105

• Mapping genetic effects on cell type-specific chromatin accessibility using single nucleus ATAC-seq

  Gene regulation is highly cell type-specific and understanding the function of non-coding genetic variants associated with complex traits requires molecular phenotyping at cell type resolution. In this study we performed single nucleus ATAC-seq (snATAC-seq) and genotyping in peripheral blood mononuclear cells from 13 individuals. We mapped chromatin accessibility QTLs (caQTLs) in each immune cell type and sub-type in a subset of 10 samples of European genetic ancestry.

  Study EGAS00001006184