4757 results for "*oma"

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• Dynamic Evolution of Fibroblasts Revealed by Single Cell RNA Sequencing of Human Pancreatic Cancer

  Understanding the constituents of the pancreatic ductal adenocarcinoma (PDAC) microenvironment may illuminate more efficacious targets for treating this aggressive malignancy. However, the compositional changes occurring in untreated and treated PDAC relative to both normal and inflamed pancreas have not been well characterized. To provide a more comprehensive understanding of the PDAC tumor microenvironment relative to the non-cancerous pancreas, we performed single-cell expression profiling (10X Genomics Chromium) on samples of upfront resectable PDAC, FOLFIRINOX-based treated PDAC, chronic pancreatitis, and normal pancreas specimens from 19 patients. Spatial gene expression profiling (10X Genomics Visium) was performed to gain additional insight into cell populations. Our analysis revealed that fibroblasts are central mediators of cell-cell communication in both inflamed and malignant settings and defined unique roles for these cell populations in different disease contexts.

  Study phs003751

• Molecular Correlatives from SU2C-SARC032

  SU2C-SARC032 was a phase II international, randomized trial for patients with localized, high-risk undifferentiated pleomorphic sarcoma or dedifferentiated or pleomorphic liposarcoma of the extremity and limb girdle. On the trial, the addition of perioperative pembrolizumab to preoperative radiotherapy and surgery improved disease-free survival compared to preoperative radiotherapy and surgery alone. Bulk RNA-sequencing was performed on pre-treatment and surgically resected tumor specimens.

  Study phs003921

• A Therapeutic Vaccine for Fibrolamellar Hepatocellular Carcinoma

  Fibrolamellar hepatocellular carcinoma (FLC) is a rare form of liver cancer affecting 33 children and young adults that is driven by a chimeric protein, DNAJ-PKAc. We conducted a phase 1 clinical trial of a therapeutic vaccine targeting DNAJ-PKAc 38 (FLC-Vac), in combination with nivolumab and ipilimumab, in children and adults with advanced FLC. Among 16 patients enrolled, 12 completed the vaccine priming phase and were evaluable for both immunological and clinical endpoints. Grade 3 treatment-related adverse events were reported by six patients (37.5%). DNAJ43 PKAc-specific T cell responses were detected in 9/12 patients after treatment. In the subset of patients who completed the initial priming phase the disease control rate (DCR) was 75% (9/12), with three partial responses (25%). All patients with clinical responses also had DNAJ-PKAc specific T cell responses, from which we identified multiple class II-restricted T cell receptors (TCRs) with specificity for DNAJ-PKAc. Correlates of response included both functional neoantigen reactivity and changes in TCR repertoire features over time. Immune escape in two patients corresponded with immune exhaustion rather than neoantigen escape or HLA loss.

  Study phs003970

• RNA-seq of chordoma samples

  This dataset contains paired-end bulk RNA-seq data of advanced chordoma samples from 7 patients. Sequencing was performed on Illumina HiSeq 4000 or NovaSeq 6000.

  Dataset EGAD50000001019

• CDK4/6 inhibition in advanced chordoma: final results of the NCT PMO-1601

  Background. Chordoma is a rare bone tumor with no approved systemic therapy. Inactivation of the tumor suppressor p16 (encoded by CDKN2A) leads to aberrant cyclin D-CDK4/6-RB pathway activity, which can be inhibited by palbociclib in chordoma cell lines. Patients and Methods. We conducted a phase II single-arm, open-labeled trial on palbociclib in adult patients with advanced chordomas with p16 loss (by immunohistochemistry) or CDKN2A loss (by genomic analysis) and CDK4/6 and RB1 presence (by immunohistochemistry or RNA-Sequencing). Patients received 125mg palbociclib once daily for 21 days in a 28-day cycle. The study used a Simon optimal 2-stage design. The primary endpoint was disease control rate after six cycles. Response was evaluated according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Secondary endpoints included progression-free survival, overall survival, and biomarker analysis. The study was considered positive if 25% of patients reached the primary endpoint. Results. Between December 2017 and April 2023, 28 patients (median age 60 years, range 31-84) were enrolled. After a median follow-up of 28 months, the disease control rate was 39%, with 11 out of 28 patients achieving stable disease. No objective responses were observed. The median progression-free survival was 5.6 months, and the median overall survival was 24.6 months. Treatment was well tolerated without new safety signals. CDKN2A deletions were the most common genomic alterations underlying p16 loss and were accompanied by MTAP co-deletion. There was no correlation between responder phenotypes by immunohistochemistry and outcome. RNA-based analysis showed heterogeneous pathways deregulation at study entry suggesting underlying primary resistance mechanisms Conclusion. This trial met its primary endpoint with a 39% disease control rate, though antitumor activity was modest. Molecularly tailored combination therapies should be considered to improve efficacy. (ClinicalTrials.gov number, NCT03110744).

  Study EGAS00001007985

• Development of Novel Histiocytic Sarcoma Organoid Model for Drug Discovery

  Histiocytic sarcoma is an extremely rare and aggressive hematopoietic malignancy. Its pathogenesis remains poorly understood and effective treatments are lacking. We treated a patient with histiocytic sarcoma of soft tissue in Osaka International Cancer Institute and established an organoid culture from a resected tumor specimen using a modified air���liquid interface method. After serial passaging, the organoid was successfully xenografted into NOD-scid IL2Rgnull (NSG) mice. The established organoid retained key histological features and genetic characteristics of the original tumor. This organoid model offers a novel and reliable platform for studying the biology of histiocytic sarcoma and may contribute to the development of future therapeutic strategies.

  Study JGAS000807

• Development of Novel Synovial Sarcoma Organoids Models for Drug Discovery

  Although synovial sarcoma has been studied using established cell lines and mouse models, effective treatments remain limited. We treated five patients with synovial sarcoma between 2022 and 2023 and established organoid cultures from resected tumor specimens using a modified air-liquid interface method. After serial passaging, organoids were successfully xenografted into NOD-scid IL2Rgnull (NSG) mice in three cases. The established organoids retained SS18-SSX fusion transcripts and demonstrated histological and genetic similarities to the original tumors. These organoid models provide a reliable platform for studying synovial sarcoma biology and hold promise for the development of novel therapeutic strategies.

  Study JGAS000806

• HOVON152 Trial Targetted Sequencing

  Associated with Molecular profiling of HGBCL-DH-BCL2 patients treated in the HOVON-152 triaL. Targeted sequencing of 30 samples from 30 High-grade B-cell lymphoma patients. Targeted sequencing was used for identify genomic alterations associated with patient outcome.

  Dataset EGAD50000002093

• HOVON152 Trial shallow Whole Genome Sequencing

  Associated with Molecular profiling of HGBCL-DH-BCL2 patients treated in the HOVON-152 triaL. Targeted sequencing of 30 samples from 30 High-grade B-cell lymphoma patients. Targeted sequencing was used for identify genomic alterations associated with patient outcome.

  Dataset EGAD50000002094

• WGS of Multiple Myeloma/MGUS/SMM cases (germline) - VCF files (SNPs)

  WGS - PCR-free library preparation (whole blood gDNA), paired-end (2x100bp) sequencing on DNBseq sequencing platform (BGI) Number of samples: 26

  Dataset EGAD50000001800

• Identification of putative multiple myeloma (MM) susceptibility genes

  We sought to identify novel MM susceptibility genes using a collection of families with multiple cases of MM/MGUS, including 189 affected individuals from 40 families, and index cases from an additional 88 families, along with 170 early-onset (EO) MM cases (≤ 55 years). We analyzed a total of 347 affected individuals using whole exome (N=321) and whole genome (N=26) sequencing. Samples were identified and collected through nation-wide efforts in France, Sweden and Greece. We focused on rare (MAF<0.5%) germline protein truncating and likely deleterious missense variants in genes harboring variants in at least two families showing variant-disease segregation, and in additional index (≥2) and/or early-onset (≥2) cases.

  Study EGAS50000001259

• WES of Multiple myeloma/MGUS cases (germline) - Fastq files

  WXS - Exome capture using the Twist Human Core Exome Kit on germline DNA, paired-end (2x100bp) sequencing on a NovaSeq system. Number of samples: 295

  Dataset EGAD50000001799

• Cell-free DNA methylome and fragmentome analysis for disease relapse monitoring in patients with Ewing Sarcoma

  We conducted whole-genome and methylome sequencing of cfDNA from 87 serial samples of 23 patients with EwS and 3 patients with CIC-rearranged sarcoma (CIC). With EwingSign, a new machine learning model, we identified EwS or CIC in a test set for 11 out of 16 patients at diagnosis and 15 out of 18 clinically confirmed relapse events. 0 out of 24 non-cancer controls were detected positive with EwingSign.

  Study EGAS50000001415

• Plasma cfDNA dataset from healthy donors and cancer patients

  The dataset contains 424 paired-end raw fastq files of 224 plasma cfDNA samples from healthy donors and cancer (Ewing Sarcoma, CIC) patients. WGS and methylation binding domain sequencing was performed at 2 × 150 bp on an NovaSeq6000 or NextSeq 500. 200 samples underwent both WGS and methylation binding domain sequencing. 24 samples underwent only WGS.

  Dataset EGAD50000002051

• WES dataset used for the study "Longitudinal Multi-Omics Study Reveals Molecular Drivers and Tumor Microenvironment in Extramedullary Multiple Myeloma"

  This dataset contains 72 paired fastq files of raw Whole exome sequencing data from 14 patients with Extramedullary myeloma, 8 paired samples from the same patients at the time of Newly diagnosed myeloma, and the corresponding normal samples

  Dataset EGAD50000000052

• Bulk RNAseq dataset for "Longitudinal Multi-Omics Study Reveals Molecular Drivers and Tumor Microenvironment in Extramedullary Multiple Myeloma"

  This dataset contains 84 paired fastq files of Bulk RNAseq collected from 14 patients with Extramedullary multiple myeloma, 14 patients with newly diagnosed multiple myeloma and 14 patients with Relapsed/refractory multiple myeloma

  Dataset EGAD50000000051

• singel cell RNAseq dataset for the study "Longitudinal Multi-Omics Study Reveals Molecular Drivers and Tumor Microenvironment in Extramedullary Multiple Myeloma"

  This dataset contains 16 fastq files of raw single-cell RNAsequencing data from 6 patients with Extramedullary multiple myeloma used for the study "Longitudinal Multi-Omics Study Reveals Molecular Drivers and Tumor Microenvironment in Extramedullary Multiple Myeloma"

  Dataset EGAD50000000053

• singel cell RNAseq dataset for the study "Composition and functional status of T and NK cells in Extramedullary myeloma tumor microenvironment""

  Dataset contains all newly generated single cell RNAseq data generated for the study. It includes 5 EMM soft tissue samples, 5 EMM bone marrow samples (EMM_BM) and 6 RRMM BM samples without EMM (RRMM_BM). Samples that are sequenced twice are marked by _1 or _2 in the sample name. The sample name mentioned corresponds to the sample name used in the publication. The rest of the EMM single cell RNAseq samples mentioned int the publication, EMM_03_1, EMM_11, EMM_14_1, EMM_14_2, EMM_16, and EMM_15_1 are already uploaded in EGA archive – dataset id EGAD50000000053.

  Dataset EGAD50000001511

• Study of wound response like states in glioblastoma

  In order to investigate wound reponse-like states in glioblastoma, we carried out experiments on primary tissue as well as organoids. Single cell RNA sequencing was performed on core and periphery of three human glioblastoma. Bulk RNA sequencing was performed on glioblastoma-derived organoids subject to treatment for 72h with plasma, hypoxia, or both, and analyzed at 0, 24, 72, and 144h.

  Study EGAS50000001442

• Single cell RNA sequencing of samples from core and periphery of human glioblastoma

  Samples taken from various regions of three human glioblastomas were subject to single cell RNA sequencing.

  Dataset EGAD50000002080

• Hypoxia and plasma treatment of glioblastoma organoids

  RNA sequencing of organoids derived from human glioblastoma subject to hypoxia, plasma, or a combination of both for 72h, sampled at 0, 24, 72, and 144h.

  Dataset EGAD50000002081

• RNAseq of medulloblastoma data (MB_COMICS cohort)

  Medulloblastoma (MB) is the most common malignant brain tumor in children. It is a neuroectodermal tumor located in the cerebellum. International consensus recognizes four distinct subgroups of MBs including Wingless (WNT), Sonic Hedgehog (SHH), Group 3 (G3), and Group 4 (G4) with distinct molecular characteristics, prognoses, and mortality rates in patients. Here, we have compiled and evaluated a large international MB cohort for which we generated transcriptomic data (RNAseq) for 208 primary MB patient samples.

  Study EGAS50000000410

• RNAseq for 208 patients with medulloblastoma cancer (MB_COMICS cohort)

  This dataset contains 208 paired fastq files sequenced with Illumina HiSeq 2500.

  Dataset EGAD50000000600

• MB_COMICS_Methylome

  Medulloblastoma (MB) is the most common malignant brain tumor in children. It is a neuroectodermal tumor located in the cerebellum. International consensus recognizes four distinct subgroups of MBs including Wingless (WNT), Sonic Hedgehog (SHH), Group 3 (G3), and Group 4 (G4) with distinct molecular characteristics, prognoses, and mortality rates in patients. Here, we have compiled and evaluated a large international MB cohort for which we generated methylome data for 369 primary MB patient samples.

  Dataset EGAD00010002669

• Berlin Neuroblastoma Dataset

  Study EGAS00001004022