13393 results for ""pdc"+"heritage+language"+census+study"

in 18.92 milliseconds.

• High-throughput determination of the antigen specificities of T cell receptors in single cells

  High-throughput linking of T cell receptor (TCR) sequences to their binding antigens is vital for immune profiling, yet challenging. We present Tetramer associated TCR Sequencing (TetTCR-Seq) to address this challenge. Binding is determined using a library of DNA-barcoded antigen tetramers that are rapidly and inexpensively generated using an in vitro transcription/translation platform. We included CMV+ donors (CMV seropositive donors who are infected with Cytomegalovirus) to screen for CMV specific TCRs.

  Study phs001678

• Single Suture Craniosynostosis: Gene and Pathway Discovery

  Craniosynostosis is the premature fusion of one or more of the calvarial sutures. In this work, we used genomics and network modeling to reveal genetic and developmental pathways which, when disrupted, result in premature calvarial fusion. Calvarial bone explants were obtained from children undergoing surgery for single suture craniosynostosis. Primary osteoblast cell lines were established from calvarial explants and used as an RNA source.  The data available includes subject sex, affected suture, RNA sequence variants and counts.

  Study phs002684

• Longitudinal Assessment of Methylmercury and Gut Microbes During Pregnancy

  Methylmercury is a potent neurotoxin, and the fetal period is the most vulnerable exposure period. There is significant variability in methylmercury metabolism, which has been attributed to differences in the structure and function of the gut microbiome. Our main objective was to better understand the interplay between gut microorganisms and methylmercury metabolism during pregnancy. To address this aim, associations were investigated between maternal biomarkers (blood, hair, stool) for prenatal methylmercury exposure and maternal gut microbiota during early and late gestation.

  Study phs001768

• The Genetics of Lung Cancer Susceptibility in Smokers

  Over 85% of all patients diagnosed with lung cancer report a history of tobacco use, though only 10% of tobacco smokers eventually develop lung cancer. Epidemiologic studies have shown that family members of patients with lung cancer have a higher risk of developing lung cancer than controls. In an effort to identify variants associated with tobacco induced lung cancer, we have sequenced germline DNA from affected and unaffected members of families with strong histories of tobacco related lung cancer.

  Study phs000728

• Evolution of Chronic Lymphocytic Leukemia to Richter's Syndrome (RS)

  Richter's syndrome arising from chronic lymphocytic leukemia is a striking example of an aggressive malignant histology that emerges from indolent cancer. To understand this process, we reconstructed phylogenies based on whole exome sequencing of matched normal, CLL and RS samples. We computationally deconvoluted CLL and RS clones and identified drivers of transformation. We additionally performed whole genome sequencing, whole transcriptome sequencing and single-cell transcriptome sequencing to understand the mutational signatures, genome-wide events and gene expression changes associated with transformation.

  Study phs002458

• FLG LoF Variants are Associated with Atopic Dermatitis in an Early-Life Prospective Cohort

  We performed targeted sequencing of the FLG gene in 438 children with physician-diagnosed Atopic Dermatitis (AD), identified Loss-of-Function (LoF) variants, and tested the association of having one or more of these variants (binary composite) variants with AD-associated outcomes. We found that having a LoF variant was associated with moderate-severe AD compared to mild AD, food allergy at the first visit, and higher transepidermal water loss (TEWL) in both lesional and non-lesional skin in these children.

  Study phs003489

• Genomic and Transcriptomic Sequencing of CAR-T-Treated Patients

  Chimeric Antigen Receptor (CAR)-T cell therapy has revolutionized the treatment of hematologic malignancies. Approximately half of patients with refractory large B-cell lymphomas achieve durable responses from CD19-targeting CAR-T treatment; however, failure mechanisms are identified in only a fraction of cases. Here we use next-generation sequencing technologies to characterize the genomic and transcriptomic features of CAR-T cells and tumors that influence therapeutic responses. Please see our submission to NCBI GEO (GSE273170) for additional data.

  Study phs002922

• Testicular large B-cell lymphoma is genetically similar to PCNSL and distinct from nodal DLBCL

  Next generation sequencing (NGS) data analyzed in Rivas-Delgado, López, et al. HemaSphere 2024. Single nucleotide variants (SNVs) and short insertions /deletions (indels) were evaluated in 42 samples using a B-cell malignancy-oriented targeted panel covering 115 genes (SureSelectXT, Agilent Technologies and sequenced in a MiSeq instrument (Illumina; 2x150bp; mean coverage of 599x). The NGS data of 39 samples is provided here. The 3 additional samples were previously published. Please, see the original publication for additional details.

  Study EGAS50000000521

• Gene expression profiling of patient-derived fibroblasts with Maple Syrup Urine Disease (MSUD)

  Maple syrup urine disease (MSUD) is a rare inherited metabolic disorder characterized by deficient activity of the branched-chain alpha-ketoacid dehydrogenase (BCKD) complex, required to metabolize the amino acids leucine, isoleucine and valine. Despite its profound metabolic implications, the molecular alterations underlying this metabolic impairment had not yet been elucidated. We performed a comprehensive transcriptomic analysis on fibroblasts derived from a cohort of MSUD patients and unaffected controls to unravel the pathophysiology of MSUD.

  Study EGAS50000000192

• Uncovering Principles of Adaptive Regulation in Cancer Resistance Through Deep Evolutionary Profiling

  A comprehensive understanding of the emergence of therapy resistance in cancer requires new approaches capable of generating and characterizing drug resistant cell lines at scale. Here, we present the EVolution Of Lineages in Vitro (EVOLV) platform, a high-throughput approach for generating diverse libraries of viable, drug-resistant cell lines from a common progenitor. EVOLV enables deeper insights into the genomics of drug resistance as well as into the complex interplay among genomic, transcriptomic, and functional layers during cancer evolution.

  Study phs003851

• Modulation of Lung Immune Responses to Viral Infection-Microbiome Interactions with Respiratory Organoids

  Here, we colonized bronchial epithelial air-liquid interface tissue cultures with 58 different individual microbes. Following 18 and 48 hours of colonization, we performed bulk RNA-seq of the host epithelial cells (n=3). Overall, we found significant microbial species-level and strain-level variation in host gene expression changes for innate immunity and epithelial barrier genes. Of particular interest, we found significant heterogeneity in stimulation of host interferon and antiviral interferon-stimulated genes.Study registered in ImmPort under accession # SDY2281.

  Study phs003627

• Kids First: Whole Genome Sequencing Studies of Multiplex Nonsyndromic Cleft Lip/Palate Families

  Nonsyndromic cleft lip with or without cleft palate (NSCLP) is a common birth defect that affects approximately 135,000 newborns worldwide, and imposes significant medical, psychosocial and financial burdens to affected individuals and their families. Genetic variation in numerous genes has been associated with NSCLP, however the exact mechanisms by which they contribute to the condition remain largely unknown. Here, we will use whole genome sequencing and robust analytical approaches to systematically evaluate the causes of NSCLP in 923 individuals from large multigenerational families.

  Study phs002626

• Childhood Cancer Data Initiative (CCDI): Pediatric In Vivo Testing Program – Sarcomas and other Solid Tumors

  The primary goal of this project involves the comprehensive molecular profiling of patient-derived xenograft (PDX) mouse tumor models. Molecular profiling of each PDX model will include whole exome sequencing (WES), RNAseq, MethylEPIC arrays, CytoSNP array, and DNA fingerprint for quality control. Limited clinical demographic data (e.g. diagnosis, disease site, disease status) will be obtained. This data can be utilized to validate PDX models with matched patient tumors and can be used to guide model selection for downstream preclinical drug testing.

  Study phs003161

• INCLUDE: Human Trisome Project

  The INCLUDE (INvestigation of Co-occurring conditions across the Lifespan to Understand Down syndromE) Project is an NIH-wide collaboration that seeks to improve health and quality-of-life for people with Down syndrome. The INCLUDE Project Data Coordinating Center and partners created the INCLUDE Data Hub, a centralized data resource that allows access to large-scale clinical and multi-omics datasets specific to Down syndrome and supports collaborative, cloud-based analysis to accelerate scientific discoveries related to Down syndrome and its co-occurring conditions.

  Study phs002981

• Activation-Induced Marker (AIM) Sequencing of Healthy Human T Cells

  T cells from five healthy human donors were stimulated with a peptide pool (CEFX, JPT) and anti-CD28/CD49d co-stimulation. Cells were then sorted based on activation (OX40 and PD-L1 for CD4s, CD137 for CD8s) and labeled with corresponding hashing antibodies prior to sequencing. In total, this dataset encompasses 42,370 cells (12,743 activation-induced marker (AIM)-positive, 15,369 AIM-negative, 14,258 Mock) for CITE-sequencing and TCR-sequencing of sorted activated, unactivated, and mock T cells derived from blood.

  Study phs004043

• Identification of G-Quadruplex Clusters by High-Throughput Sequencing of Whole-Genome Amplified Products with a G-Quadruplex Ligand

  G-quadruplex (G4) is a non-canonical DNA structure that has been found in the genome. To identify clusters of G4-forming sequences in the genome, we performed whole genome amplification (WGA) in the presence or absence of a G4 ligand that inhibits DNA polymerase activity on the G4 forming regions, followed by high-throughput sequencing of the WGA products. As the results, 12254 G4 cultures were identified on HeLa genomic DNA.

  Study phs001450

• Studies of L1-mediated Pseudogene Formation in Human HeLa Cells

  Alu elements mobilize from one genomic location to another by a "copy-and-paste" mechanism known as retrotransposition, which requires the human Long INterspersed Element-1 (LINE-1 or L1) ORF2-encoded protein (ORF2p); however, little is known about other cellular factors required for Alu retrotransposition. Isolates of HeLa cells differ in their ability to support Alu retrotransposition. Here, we generated Illumina whole genome sequencing data derived from four HeLa isolates: HeLa-H1, HeLa-CCL2, HeLa-HA, and HeLa-JVM.

  Study phs003397

• Tumor-associated neutrophil 1 precursors impair homologous DNA repair and promote sensitivity to PARP-inhibition

  Tumor evolution is one of the major mechanisms responsible for acquiring therapy resistant and more aggressive cancer clones. Whether the tumor microenvironment through immune-mediated mechanisms might promote the development of more aggressive cancer types is crucial for the identification of additional therapeutical opportunities. Here, we identify a subset of tumor-associated neutrophils, defined as tumor-associated neutrophil precursors (PreNeu). These PreNeu are enriched in highly proliferative hormone-dependent breast cancers and impair DNA repair capacity

  Study EGAS00001008154

• Application of targeted long-read methylation sequencing to dissected lung cancer tissues

  To investigate DNA methylation patterns within the tumor microenvironment, multiple regions were dissected from fresh-frozen sections of two lung adenocarcinoma specimens using the Millisect system. These regions were annotated based on spatial transcriptome data. DNA samples extracted from these regions were subjected to targeted long-read methylation sequencing using t-nanoEM. To establish a control dataset, short-read whole-genome sequencing (WGS) was performed on the tumor and normal parts, and long-read WGS was performed on the tumor part.

  Study JGAS000757

• Establishment of Human Trophoblast Stem Cells from Term Smooth Chorion

  Human trophoblast stem (TS) cells, which were established from blastocysts and first-trimester placental villi, can differentiate into the all trophoblastic subtypes, extravillous trophoblast (EVT) cells and syncytiotrophoblast (ST) cells. We newly generated human TS cells from the term smooth chorion (Ch-TS cells). They has the potential to differentiate into both ST and EVT cells as same as human TS cells derived from early placental villi. The transcriptomic profile of Ch-TS cells is also similar to conventional human TS cells.

  Study JGAS000777

• Access to "BMP9 controls pulmonary vascular growth and remodeling"

  Pulmonary arterial hypertension (PAH) and hereditary hemorrhagic telangiectasia (HHT) are two distinct vascular diseases linked to impaired signaling through bone morphogenetic protein (BMP) receptor complexes in endothelial cells. Although BMP-9 plays a central role in activating this pathway by binding to ALK1 and BMPR-II, its precise function in the pulmonary microvasculature has remained unclear. In this study, we uncover a previously unrecognized role for BMP-9 in regulating pulmonary vascular architecture and homeostasis. Our findings demonstrate that BMP-9 signaling intersects with VEGF pathways and contributes to the delicate balance between vascular growth and remodeling in the lungs. We also show that disruption of this pathway can shift vascular responses toward an HHT-like state, potentially altering disease susceptibility. These insights offer a unique perspective on how BMP-9 and ALK1 shape pulmonary vascular biology and suggest that targeting this axis could inform future strategies for treating complex vascular diseases such as PAH.

  Dac EGAC50000000640

• genetic analysis of carcinogenesis in GAPPS

  Gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS) is an autosomal dominant syndrome characterized by polyposis localized in the gastric body and fundus with a strong tendency for adenocarcinoma. The genetic mutations that accumulate during the progression from normal mucosa through fundic gland polyps (FGPs) to carcinoma in GAPPS remain unclear.We investigated the evolutionary process from normal mucosa to FGPs and carcinoma in GAPPS. Through comprehensive mutational and transcriptome analyses, we aimed to provide insights into the biology of this disease.

  Study JGAS000843

• Filtered variants including SLC12A2 in patients with hearing loss

  Hereditary hearing loss is challenging to diagnose because of the heterogeneity of the causative genes. Further, some genes involved in hereditary hearing loss have yet to be identified. Using whole-exome analysis of three families with congenital, severe-to-profound hearing loss, we identified a missense variant of SLC12A2 in five affected members of one family showing a dominant inheritance mode, along with de novo splice-site and missense variants of SLC12A2 in two sporadic cases, as promising candidates associated with hearing loss.

  Study JGAS000379

• Comprehensive molecular profiling of pulmonary pleomorphic carcinoma

  Information regarding the molecular features of pulmonary pleomorphic carcinoma (PPC) is insufficient. Here, we performed next-generation sequencing to determine the genomic and transcriptomic profiles of PPC. Whole exome sequencing (WES) of fresh-frozen tissue samples and target-capture sequencing of formalin-fixed-paraffin-embedded (FFPE) samples were performed. Fresh-frozen tissue samples and FFPE samples were subjected to WES and target-capture sequencing as normal control, respectively. Fresh-frozen tissue samples and 56 FFPE samples were subjected to RNA-seq.

  Study JGAS000297

• The genetic analysis of circulating tumor DNA in blood of the digestive cancer patients to investigate the prognostic factors of metastasis and reccurence.

  A Darwinian evolutionary shift occurred early in the neutral evolution of advanced colorectal carcinoma (CRC) and copy number aberrations (CNA) were essential in the transition from adenoma to carcinoma. Subsequent to the primary evolution, we now focus on the evolutionary principle of the genome to foster postoperative recurrence of CRC. SO, We compared CNA, single nucleotide variance (SNV), RNA sequences between 8 primary and 11 metastatic sites from 10 CRCR cases.

  Study JGAS000221