5032 results for "*oma"

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• SV Based ctDNA detection in localized soft tissue sarcoma

  WGS from FFPE for "Detecting ctDNA Using Personalized Structural Variants to Forecast Recurrence in Localized Soft Tissue Sarcoma." study. 33 patients had whole genome sequencing through the Illumina platform at an average depth of 15x. Tumor informed structural variants were identified and ddPCR assays were designed for individualized structural variant-based ctDNA detection.

  Dataset EGAD50000002614

• Multi-omics profiling identifies two epithelioid sarcoma molecular subtypes with distinct signaling and immune characteristics

  Epithelioid sarcoma (EpS) is an aggressive sarcoma, characterized by the loss of SMARCB1 expression. EpS is traditionally classified as distal or proximal according to clinicopathological features, but its molecular characteristics remain largely unknown. To establish an EpS molecular classification and uncover determinants of inter- and intra-patient heterogeneity in EpS, we used multi-omics profiling and integrated the genomic, transcriptional and methylome landscapes with single-cell RNA sequencing on fresh samples as well as spatial transcriptomics. We identified two molecular subtypes of EpS: “distal-like” and “proximal-like”, which were distinct from the histological subtypes. Distal-like tumors include all morphological distal subtypes and a subset of proximal and hybrid EpS. They express a specific molecular single-cell derived epithelial-to-mesenchymal transition signature, which associates with improved patient survival and includes Desmoglein 2 (DSG2), which we identify as a potential routine immunohistochemical biomarker to improve diagnosis. Distal-like EpS also display increased peri-tumoral CD8+ T cell infiltrates and specific tumor-immune cell interactions. Conversely, proximal-like EpS harbor a higher inter-tumoral molecular heterogeneity with some cases resembling other SMARCB1-deficient tumors by DNA methylation profiling, and increased intra-tumoral pro-tumoral macrophage infiltrates. Our study introduces a novel molecular classification of EpS with prognostic value, associated diagnostic biomarkers and distinct tumor immune microenvironments, which extends beyond traditional clinicopathological classification. This paves the way for precision medicine-based therapeutic strategies for patients with EpS.

  Dac EGAC50000000552

• Multiregional whole exome sequencing of mesothelioma tumors of MEDUSA cohort

  MEDUSA (Mesotheliomaevolution: deciphering druggable somatic alterations) is a translational research platform to build predictive models to stratify existing therapies. This study utilizes multiregional mesothelioma exome sequencing to infer a human evolutionary model of MPM tumorigenesis and understand the inter-relationships that exist between genomic ITH, host immune surveillance and clinical phenotype.

  Study EGAS50000001865

• MD Anderson Cancer Center HGSOC LRS Data Access Comittee

  Oxford Nanopore long-read sequencing was performed on six paired tumor-normal samples from patients with high-grade serous ovarian carcinoma. Reads were mapped to the GRCh38 reference genome, incorporating base modification information.

  Dac EGAC50000000597

• MEC/SEF rhabdomyosarcoma mRNA sequencing

  This project was undertaken to sequence and analyze mRNA expression in these tumor subtypes. We intended to discover distinctive patterns of tumor subtype gene expression in these subtypes. In addition, we used this data to discover expression differences between ESWR fusion positive and fusion negative MEC tumors.

  Study EGAS50000000535

• ASPSCR1-TFE3 gene fusion panel deep amplicon sequencing data

  Dataset contains compressed, paired-end Fastq files of deep amplicon sequencing data from a custom ASPSCR1-TFE3 gene fusion panel for three alveolar soft part sarcoma cases described in "Development and first-in-human CAR T therapy targeting the pathognomonic MiT-fusion driven protein GPNMB".

  Dataset EGAD50000002438

• A conserved enhancer in ecDNA-containing Medulloblastoma

  Extrachromosomal DNA (ecDNA) fundamentally reshapes the regulatory landscape of cancer cells by providing a platform for massive oncogene amplification and heightened chromatin accessibility. This research investigates how ecDNA-resident enhancers operate within large-scale molecular hubs to drive potent, long-range transcriptional activation that transcends standard chromosomal boundaries. By analyzing the unique structural configurations of these elements, the work identifies key mechanisms that contribute to rapid tumor evolution and significant phenotypic plasticity. These findings highlight the critical role of non-chromosomal regulatory elements in maintaining oncogenic signaling and suggest new avenues for therapeutic intervention in aggressive, ecDNA-driven malignancies.

  Study EGAS50000001609

• A conserved enhancer in ecDNA-containing Medulloblastoma

  Extrachromosomal DNA (ecDNA) fundamentally reshapes the regulatory landscape of cancer cells by providing a platform for massive oncogene amplification and heightened chromatin accessibility. This research investigates how ecDNA-resident enhancers operate within large-scale molecular hubs to drive potent, long-range transcriptional activation that transcends standard chromosomal boundaries. By analyzing the unique structural configurations of these elements, the work identifies key mechanisms that contribute to rapid tumor evolution and significant phenotypic plasticity. These findings highlight the critical role of non-chromosomal regulatory elements in maintaining oncogenic signaling and suggest new avenues for therapeutic intervention in aggressive, ecDNA-driven malignancies.

  Study EGAS50000001610

• A conserved enhancer in ecDNA-containing Medulloblastoma

  Extrachromosomal DNA (ecDNA) fundamentally reshapes the regulatory landscape of cancer cells by providing a platform for massive oncogene amplification and heightened chromatin accessibility. This research investigates how ecDNA-resident enhancers operate within large-scale molecular hubs to drive potent, long-range transcriptional activation that transcends standard chromosomal boundaries. By analyzing the unique structural configurations of these elements, the work identifies key mechanisms that contribute to rapid tumor evolution and significant phenotypic plasticity. These findings highlight the critical role of non-chromosomal regulatory elements in maintaining oncogenic signaling and suggest new avenues for therapeutic intervention in aggressive, ecDNA-driven malignancies.

  Study EGAS50000001608

• Whole exome RNA sequencing of FFPE material from 49 pediatric BCP-LBL patients.

  This study contain the results of whole exome-targeted transcriptome analyses of FFPE material from 49 pediatric B-cell precursor lymphoblastic lymphoma patients. Data are provided as Fastq files.

  Study EGAS50000000289

• Single-cell multi-omic profiling of glioblastoma-associated myeloid cells

  Study EGAS00001004871

• 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

• Hepatoblastoma tumoroid biobank as a key resource for tumour genetics

  Study EGAS00001008251

• Non-Hodgkin Lymphoma WES Data Access Committee

  DAC for controlled access to whole exome sequencing (WES) data from NHL patients at University of Tabuk

  Dac EGAC50000000998

• Whole Exome Sequencing of Non-Hodgkin Lymphoma Patients in Tabuk, Saudi Arabia

  This study presents whole exome sequencing (WES) data from 20 Non-Hodgkin Lymphoma (NHL) patients. Samples represent diverse histopathological subtypes including Diffuse Large B-Cell Lymphoma (DLBCL), Follicular Lymphoma, and other NHL variants. Both nodal and extranodal disease origins are represented. Sequencing was performed to investigate the genomic landscape of NHL in a Saudi Arabian patient cohort.

  Study EGAS50000001776

• Whole Exome Sequencing of Non-Hodgkin Lymphoma Patients

  This dataset contains whole exome sequencing data from 20 Non-Hodgkin Lymphoma patients sequenced on the Illumina NovaSeq 6000 platform. Data includes paired-end FASTQ files (2×150 bp) for all samples representing diverse histopathological subtypes including DLBCL, Follicular Lymphoma, and other NHL variants from a Saudi Arabian cohort.

  Dataset EGAD50000002551

• Full length cDNA-selective sequencing of human frontal lobe

  To catalog RNA isoforms in the human brain, we applied full-length cDNA-selective sequencing (FLeCS-seq) to RNA samples extracted from the normal frontal lobe of a glioma patient. Short-read RNA-seq and long-read SMART-seq were also performed as control datasets. Additionally, we utilized ultralong-read and short-read whole-genome sequencing to phase heterozygous SNPs. By integrating these phased SNPs with FLeCS-seq reads, we identified allele-specific expressed isoforms.

  Study JGAS000877

• SPEN loss drives extra-follicular diffuse large B cell lymphoma with female-specific lethality and TLR pathway therapeutic vulnerabilities

  Multiome (ATAC and GEX) sequencing for one rLN sample and one DLBCL sample

  Study EGAS50000001594

• Cell-Free DNA Fragmentation Distinguish Immunotherapy Responders from Non- Responders in Head and Neck Cancer: A Multi-Institute Prospective Study

  We performed whole-genome sequencing of 185 plasma cfDNA samples from 68 patients with head and neck squamous cell carcinoma (HNSCC) enrolled in a phase II clinical trial of neoadjuvant and adjuvant pembrolizumab. Using these data, we developed the regional motif diversity score (rMDS), a novel fragmentomic biomarker that predicts immunotherapy response and outperforms established cfDNA metrics.

  Study EGAS50000001286

• Epigenetic characterization of glioblastoma stem cells

  Chromatin accessibility discriminates stem from mature cell populations, enabling the identification of primitive stem-like cells in primary tumors, such as glioblastoma (GBM) where self-renewing cells driving cancer progression and recurrence are prime targets for therapeutic intervention. We show, using single-cell chromatin accessibility, that primary human GBMs harbor a heterogeneous self-renewing population whose diversity is captured in patient-derived glioblastoma stem cells (GSCs). In-depth characterization of chromatin accessibility in GSCs identifies three GSC states: Reactive, Constructive, and Invasive, each governed by uniquely essential transcription factors and present within GBMs in varying proportions. Orthotopic xenografts reveal that GSC states associate with survival, and identify an invasive GSC signature predictive of low patient survival, in line with the higher invasive properties of Invasive state GSCs compared to Reactive and Constructive GSCs as shown by in vitro and in vivo assays. Our chromatin-driven characterization of GSC states improves prognostic precision and identifies dependencies to guide combination therapies.

  Study EGAS50000001804

• Chromatin profiling using Cut&Run technique of hepatoblastoma organoids

  CUT&RUN LoV-U profiling of b-catenin, LEF1 and TCF7L2 binding in biological replicates (Replicate A, Replicate B) of hepatoblastoma organoids: 10F, 13F, 13E, 17E, 22E and 135F.

  Dataset EGAD50000001749

• Single-cell RNA/ATAC multiome profiling of hepatoblastoma resection samples

  10x Genomics Chromium Next GEM Single Cell Multiome ATAC + Gene Expression data of hepatoblastoma tissue samples. BAM files containing sequencing data of resection material of PT13 and PT17.

  Dataset EGAD50000001750

• Circulating Cell-free DNA Whole Genome Sequencing from Head and Neck Cancer Patients

  This dataset contains plasma-derived circulating cell-free DNA (cfDNA) whole genome sequencing (WGS) data from patients diagnosed with head and neck squamous cell carcinoma. cfDNA was extracted from plasma collected at defined clinical timepoints.

  Dataset EGAD50000001828

• Epigenetic characterization of patient-derived glioblastoma stem cell (GSC)

  ATAC-Seq data on 43 samples of glioblastoma stem cells mapped to hg19. Fastq files are available. PMID: 33427645

  Dataset EGAD50000002603

• The whole genome landscape of Burkitt lymphoma subtypes

  Study EGAS00001003778