8224 results for "canc*"

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• DAC for Early detection of ovarian cancer using cell-free DNA fragmentomes and protein biomarkers

  Ovarian cancer is a leading cause of death from gynecological malignancies worldwide. No effective screening methods exist resulting in tumor detection at advanced stages where treatment is less effective. In this study, we used whole-genome cell-free DNA (cfDNA) fragmentome and protein biomarker (CA-125 and HE4) analyses to evaluate 591 women, mostly post-menopausal, from the European Union or the United States with ovarian cancer, benign adnexal masses, or without ovarian lesions. Using a machine learning model that incorporated multi-analyte fragmentome data and protein measurements, we evaluated the detection of ovarian cancer in two clinical settings, detection of ovarian cancers among a healthy population, and classification of adnexal masses as benign or malignant. The combined approach detected ovarian cancer with specificity >99% and sensitivity of 72%, 69%, 87%, and 100% for stages I–IV, respectively (AUC=0.96, 95% CI: 0.94-0.99), including 90% of high grade serous ovarian cancers. At the same specificity, CA-125 alone detected 34%, 62%, 63%, and 100% of ovarian cancers for stages I–IV (p=0.001, two-sided test of equal proportions). Additionally, our approach differentiated benign masses from ovarian cancers with high accuracy (AUC of 0.88, 95% CI=0.83-0.92). These results were validated in an independent population. These findings show that integrated cfDNA fragmentome and protein analyses detect ovarian cancers with high performance, enabling a new accessible approach for noninvasive ovarian cancer screening and diagnostic evaluation.

  Dac EGAC50000000332

• Prefibrotic Bone Marrow Microenvironment is a Hallmark of Clonal Hematopoiesis

  Clonal hematopoiesis of indeterminate potential (CHIP) is linked to systemic inflammation and increased malignant risk, yet its impact on the bone marrow (BM) niche remains poorly understood. Through single-cell transcriptomic profiling of freshly isolated BM, we identify fibro-inflammatory rewiring as an early hallmark of CHIP. Beyond a myeloid-biased inflammatory state, CHIP BM exhibited coordinated TNFα activation across hematopoietic progenitor, monocyte, and stromal compartments. Stromal populations displayed early fibrotic remodeling, with mesenchymal and vascular cells upregulating collagen and extracellular matrix programs. Fibroblasts were markedly expanded independent of mutational subtype and acquired cancer-associated fibroblast (CAF)-like programs, rewiring niche interactions through IL-6, TGFβ, and collagen-integrin signaling. Together, these findings establish fibro-inflammatory BM remodeling as an early hallmark of clonal expansion, linking CHIP to prefibrotic stromal remodeling, immune dysregulation, and a niche architecture consistent with increased malignant risk.

  Study EGAS50000001774

• NICHE - Pre-treatment single cell RNA-seq of MMR proficient early stage colon cancers

  This dataset includes raw single cell RNA sequencing data from 13 pMMR colon cancer patients treated with neoadjuvant immune checkpoint blockade in the NICHE trial. This dataset comprises pre-treatment colon cancer biopsy samples, which digested to obtain single cell suspensions, sorted for CD45+, labelled with hashtag antibodies, split in 3 cell pools, and distributed in 5 sequencing samples (7654_1-5). 30 FASTQ files were generated, 10 files for scRNAseq gene expression (10X Genomics Chromium Next GEM Single Cell 5' v2), 10 files for single cell TCRseq (10X Genomics Chromium Next GEM Single Cell V(D)J Reagent Kits 5' v2) and 10 files for feature barcodes and hashtag antibodies, with feature reference barcodes provided. Samples were sequenced on Illumina Novaseq 6000 and raw FASTQ files were later processed with Cellranger workflows from 10X Genomics, investigating features of pre-treatment immune tumour cells and associations with neoadjuvant response.

  Dataset EGAD50000002853

• Pre-existing immunity and hrHPV status as determinants of immunotherapy response in advanced penile cancer: biomarkers and overall survival in the PERICLES trial

  The phase II PERICLES trial (NCT03686332) investigated atezolizumab with or without radiotherapy in advanced penile cancer. Here, we report mature overall survival (OS) and updated progression-free survival (PFS) outcomes and an in-depth biomarker analysis. The goal was to perform an in-depth assessment of the tumor microenvironment to identify potential predictive biomarkers and cellular mechanisms underlying successful PD-L1 blockade response.

  Study EGAS50000001571

• DAC Study assessing the efficacy and safety of durvalumab plus olaparib plus fulvestrant in selected metastatic or locally advanced ER-positive, HER2-negative breast cancer patients.

  DAC for Study assessing the efficacy and safety of durvalumab plus olaparib plus fulvestrant in selected metastatic or locally advanced ER-positive, HER2-negative breast cancer patients.

  Dac EGAC50000000694

• NeoLetExe clinical trial single-cell RNA-seq, scTCR-seq, scBCR-seq and cis-regulatory elements mapping

  We performed single cell RNA sequencing, single cell T cell receptor and B cell receptor sequencing on breast tumor biopsies collected from patient of the NeoLetExe clinical trial at 3 time points of neoadjuvant therapy with aromatase inhibitors. The NeoLetExe study is a randomized open-label clinical trial aimed at evaluating the effects of sequential aromatase inhibition in postmenopausal women with ER-positive, HER-2 negative locally advanced breast cancer (stages T3-T4 and/or N2-3, including larger T2 tumors). Fresh tumor biopsies were dissociated at the single cell level which when then processed using the 10x Genomics Chromium platform, using the Single-Cell 5′ RNA-seq method along with single cell BCR and TCR-seq. The target was 7,500 to 10,000 cells per well, with libraries prepared using Gel Bead, Multiplex, and Chip Kits, following the manufacturer’s guidelines. Sequencing was performed on NovaSeq6000. We used SCAFE v1.0.065 to identify TSSs and map transcriptionally active regulatory elements.

  Study EGAS50000001362

• 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

• Xenium in situ spatial transcriptomics analysis of cervical cancer sample Cx71

  This submission adds Xenium in situ spatial transcriptomics analysis data generated from an FFPE tissue section of a human cervical cancer sample (case ID: Cx71) to the hum0358 research. The files include a morphology OME-TIFF image, decoded transcript coordinates, a cell feature matrix, cell metadata, and cell/nucleus segmentation boundaries.

  Study JGAS000918

• Molecular Characterization of Large Cell Neuroendocrine Carcinoma of the Lung by Multilayered Omics Analysis

  Large cell neuroendocrine carcinoma (LCNEC) is a rare lung cancer type with a very poor prognosis. The underlying molecular features remain unclear. Here, we conducted a multi-omics analysis of 27 LCNEC cases along with 7 small cell lung carcinoma and aimed to propose new classification by extracting genomic and transcriptomic features in LCNEC, leading to the elucidation of the therapeutic approaches.

  Study JGAS000832

• IRCCS Istituto Romagnolo per lo Studio dei Tumori Dino Amadori Italian Cancer Center Data Access Committee

  Dac EGAC00001003631