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• Evolutionary trajectories and clonal migration underlying tumor progression and lymph node metastasis in resectable lung cancer

  In this prospective study, targeted deep sequencing was performed on a total of 160 primary tumors (474 regions) and 112 lymph nodes from 125 patients with stage I-III lung cancer (LuCaTH). Progressive evolution at clonal divergence scale was observed while specific driver events were positively selected for clonal sweeps during tumor development. Between-region genetic divergence (BRGD) of tumors were assessed and positively correlated with tumor differentiation. A machine learning algorithm was employed to evaluate clinicopathological and molecular parameters of primary tumors underlying lymph node metastasis. By analyzing clonal lineages and metastatic trajectories across multiple nodal stations, we unraveled a common sequential LNM seeding pattern but with divergent modes of clonal spread.

  Dataset EGAD00001007587

• PCA Atlas Chromium scRNA-seq and demultiplexing support (FASTQs, BAMs, capture-level VCFs and mapping tables)

  This dataset contains Chromium single-cell RNA-seq data and demultiplexing support for the PCA Atlas study EGAS00001008332. Included data objects: - 16 Chromium scRNA-seq FASTQ runs (EGAR accessions) for captures PCa1–PCa16. - 16 aligned BAM analyses (one Cell Ranger possorted_genome_bam.bam per capture). - 16 capture-level genotype VCF analyses derived from the Axiom UK Biobank array, used as demultiplexing panels. - demux_map.csv (EGAZ00001945520): donor–capture–sample mapping for genotype-based demultiplexing. - chromium.csv (EGAZ00001945537): run-level mapping linking captures, EGA samples, runs (EGAR), experiments (EGAX) and BAM analyses. Together these objects provide a complete view of the Chromium scRNA-seq data and the genotype-based demultiplexing support needed to reproduce donor assignment and downstream analyses.See also https://zenodo.org/records/17372603

  Dataset EGAD00001015795

• scRNA-seq and snRNA-seq of trophoblast stem cells (TSCs) differentiation into extravillous trophoblast organoids (EVTs)

  This dataset is part of a study that aims to compare in vivo human trophoblast differentiation into EVTs to different in vitro trophoblast organoids using single-cell and single-nuclei RNA sequencing. This specific dataset includes scRNA-seq and snRNA-seq data from trophoblast stem cells (TSCs). Trophoblast stem cell (TSC) lines BTS5 and BTS11 derived by Okae and colleagues were grown as described previously (Okae et al. 2018) together with EVT differentiation media. This study shows that the main regulatory programs mediating EVT invasion in vivo are preserved in in vitro models of EVT differentiation from primary trophoblast organoids and trophoblast stem cells. Data for primary trophoblast organoids is available under E-MTAB-12650.

  Dataset EGAD00001010017

• Whole exome sequencing of sequential samples from a CLL patient over the course of venetoclax treatment, BCR inhibitor treatment, and venetoclax re-treatment

  The dataset contains whole exome sequencing data (libraries prepared using the Agilent SureSelect Human All Exon V6 kit, and paired-end sequenced on Illumina HiSeq4000 (2 x 150bp)) of 6 samples taken from peripheral blood mononuclear cells (PBMCs) (Samples 1-5) and bone marrow (BM). Data are provided as fastq files. Sample 1 was taken prior to initial venetoclax treatment. Sample 2 was taken as disease progression on venetoclax. Sample 3 was taken during response to BTK and PI3K inhibitor therapy. Sample 4 and the BM sample were taken at disease progression/prior to venetoclax re-treatment. And Sample 5 was taken during venetoclax re-treatment response.

  Dataset EGAD00001008685

• Computational approach to discriminate human and mouse sequences in patient-derived tumour xenografts

  Whole Exome Sequencing was performed in a dilution series containing known amounts of human and mouse DNA, 3x 100% human 0% mouse, 2x 90/10, 3x 50/50, 2x 25/75 and 3x 0/100. A set of breast cancer clinical samples, matched normal tissue and matched PDTXs (total number = 14) were also analysed. Paired-end 75bp sequences for the dilution series and paired-end 125bp for the clinical samples were obtained on Illumina HiSeq2500; fastq files are provided. A triplicate analysis of the transcriptome using RNA-seq was also performed for the Universal Human RNA Reference and the Universal Mouse RNA Reference samples. Paired-end 150bp fastq files obtained on Illumina HiSeq4000 are provided.

  Dataset EGAD00001003800

• Surgical Treatment for Ischemic Heart Failure (STICH-BioLINCC)

  Data Access NOTE: Please refer to the “Authorized Access” section below for information about how access to the data from this accession differs from many other dbGaP accessions. ObjectiveTo compare medical therapy with coronary bypass surgery and/or surgical ventricular reconstruction for patients with congestive heart failure and coronary artery disease.BackgroundCoronary artery disease (CAD) is the most common cause of heart failure, which in turn is a major cause of death and disability globally. Evidence from previous clinical trials supports the use of coronary-artery bypass grafting (CABG) to relieve disabling symptoms of angina, particularly among high-risk subgroups with extensive CAD. However, the studies did not include patients with severe left ventricular dysfunction, and developments in medical therapy have since led to updated guidelines. In addition, the benefits of CABG in patients with ischemic cardiomyopathy had still not been clearly established at the time of this study. STICH sought to evaluate the role of CABG in the treatment of patients with CAD and left ventricular systolic dysfunction.Reduced left ventricular function may occur after myocardial infarction, often in conjunction with left ventricular remodeling, including left ventricular enlargement and changes in chamber geometry. Left ventricular remodeling is correlated with progression of heart failure and a poor prognosis. Therefore, a surgical approach to remodeling through left ventricular volume reduction could improve outcomes for patients with CAD and heart failure. Surgical ventricular reconstruction (SVR) has been shown to reduce the left ventricular volume, increase the ejection fraction, and improve ventricular function. There is also evidence that SVR performed with CABG may reduce the rate of hospitalization and improve ventricular function, as compared to CABG alone. As part of a second hypothesis, STICH additionally investigated whether SVR when added to CABG would improve outcomes in patients with heart failure and CAD.ParticipantsA total of 2,136 participants were enrolled in STICH. 1,212 were enrolled in the hypothesis 1 component of the trial, with 602 participants assigned to receive medical therapy alone, and 610 participants assigned to receive medical therapy plus CABG. 1,000 were enrolled in the hypothesis 2 component, with 499 participants assigned to receive medical therapy plus CABG, and 501 participants assigned to receive medical therapy plus CABG and SVR. 76 participants that were assigned to the CABG with medical therapy treatment were enrolled in both hypothesis components.DesignAfter initial determination of overall eligibility, participants were evaluated to determine which component of the STICH program was appropriate for them on the basis of suitable therapeutic options. All participants underwent cardiac imaging for assessment of left ventricular function and wall motion. Participants in the hypothesis 1 component were randomly assigned to receive either medical therapy alone or medical therapy plus CABG. Participants in the hypothesis 2 component were randomly assigned to receive either medical therapy plus CABG or medical therapy plus CABG and SVR.At baseline, demographic factors and clinical characteristics were assessed, including current medications and prior diagnostic and other cardiovascular procedures, and a physical examination was performed. Guideline-based recommendations for drug and device use were emphasized for all participants. All participants underwent follow-up evaluations at the time of discharge or at 30 days for participants still hospitalized, every 4 months for the first year, and every 6 months thereafter. The median length of follow-up was 56 months for hypothesis 1 and 48 months for hypothesis 2.For participants receiving CABG, arterial grafting for stenosis of the left anterior descending coronary artery was required for all participants without specific contraindications. The use of additional arterial conduits supplemented by vein grafts was recommended for revascularization of all major vessels with clinically significant stenoses. Concurrent mitral-valve surgery for regurgitation was performed at the discretion of the surgeon. For participants receiving SVR, the operation was most commonly performed during a single period of cardioplegic arrest after construction of bypass grafts. However, the procedure could also be performed with the heart beating in order to facilitate identification of the noncontractile zone of scarring. After an anterior left ventriculotomy was centered in the zone of anterior asynergy, a suture was placed in the interior of the ventricle to encircle the scar at the boundary between the akinetic and viable tissue. Visual inspection and palpation facilitated the judgment of whether a patch was needed to optimize the chamber size without deforming the left ventricle during closure of the ventriculotomy.The primary outcome for hypothesis 1 was the rate of death from any cause. The primary outcome for hypothesis two was a composite of death from any cause and hospitalization for cardiac causes.ConclusionsThere was no significant difference between medical therapy alone and medical therapy plus CABG for death from any cause, though participants that underwent CABG had lower rates of death from cardiovascular causes, death from any cause, or hospitalization for cardiovascular causes. Adding SVR to CABG reduced the left ventricular volume, as compared with CABG alone. However, this anatomical change was not associated with a greater improvement in symptoms or exercise tolerance, or with a reduction in the rate of death or hospitalization for cardiac causes.

  Study phs003493

• Pharmacological improvement of CFTR function rescues airway epithelial homeostasis and host defense in children with cystic fibrosis

  This dataset encompasses single-cell RNA sequencing data derived from nasal swabs of a paired cohort of school-aged children with cystic fibrosis. The study includes samples both before (n=13) and after initiation (n=13) of elexacaftor/tezacaftor/ivacaftor (ETI) treatment. Additionally, age- and sex-matched controls were included (n=12). Detailed information about the study design and methodology can be found in the manuscript: “Pharmacological improvement of CFTR function rescues airway epithelial homeostasis and host defense in children with cystic fibrosis”.

  Dataset EGAD50000000173

• Evaluation of the Efficacy and Safety of a Clinical Grade Human Induced Pluripotent Stem Cell-Derived Cardiomyocyte Patch: A Pre-Clinical Study

  Cardiomyocyte-derived induced pluripotent stem cells (iPSCs) may represent a promising therapeutic strategy for severely damaged myocardium. This study aimed to assess the efficacy and safety of clinical grade human iPSC-derived cardiomyocyte (hiPSC-CM) patches and conduct a pre-clinical proof-of-concept analysis.

  Study EGAS50000000189

• LCCC 1108: Development of a Tumor Molecular Analyses Program and Its Use to Support Treatment Decisions (UNCseqTM)

  The primary objective of this specimen correlative study was two-fold: to provide a mechanism for the association of known molecular alterations with clinical outcomes, and to provide rapid genetic profiling of alterations with known clinical utility using tumor and germline specimens to support treatment decisions.

  Study phs001713

• Solution-based exome capture and HiSeq2000-based massively parallel sequencing of Follicular Lymphoma

  A cohort of follicular lymphoma cases had tumor cells purified from tissue samples after informed consent using flow cytometry. DNA was extracted from the cells, and samples were subjected to solution-based exome capture using the Illumina TruSeq Exome Enrichment Kit and the Illumina HiSeq 2000 platform.

  Study phs000729