16758 results for "sec+and+unspecified+malignant+neoplasm"

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• Optimized large-scale longitudinal biorepository of gastroesophageal adenocarcinoma patient-derived organoids: High-fidelity models for personalized treatment to overcome resistance

  Whole exome sequencing of patient tumour samples and matched patient derived organoids.

  Dataset EGAD50000002315

• Exome sequencing for LySeqST

  Exome sequencing of 120 lymphoma samples and 13 normal samples for LySeqST: A targeted sequencing assay for robust genomic classification of diffuse large B-cell lymphoma.

  Dataset EGAD50000002289

• Single-cell dissection of the immune response after a myocardial infarction

  38 STEMI patients at hospital admission, 24 hours (acute phase) and 6-8 weeks (chronic phase) after STEMI

  Dataset EGAD00001010064

• Chromatin accessibility profiles of bulk Acute Myeloid Leukemia (AML) samples

  Chromatin accessibility profiles of bulk Acute Myeloid Leukemia (AML) samples, 60 datasets. Part of the study EGAS00001004893 and EGAS00001004896.

  Dataset EGAD00001010299

• ATAC-seq in LCLs derived from constitutional MLH1 epimutation carriers and non-carrier relatives

  ATAC-seq performed in LCLs derived from constitutional MLH1 epimutation carriers and non-carrier relatives to profile alterations in chromatin accessibility associated with constitutional MLH1 epimutation.

  Dataset EGAD50000000714

• WES and RNA-Seq of HCC biopsies and HCC derived Organoids

  We aimed to identify somatic mutations and transcriptional differences that could explain the resistance to Doxorubicin. This dataset includes RNA-Seq of HCC biopsies and Organoids and WES of Organoids.

  Dataset EGAD50000000060

• Gene expression adaptation of metastases to their host tissue

  The adaptation of metastatic cells to their host tissue critically determines the pathogenicity of a cancer and therefore patient survival. Yet, it remains elusive to what extent the host environment drives gene expression programs in metastatic cells. Here we identify adaptive mechanisms that enable metastases to establish themselves in a novel tissue context. We performed single-cell RNA-sequencing on malignant and benign tissue samples from untreated donors with colorectal adenocarcinoma and liver metastasis to deduce tissue adaptive expression patterns. A novel computational approach identified genes and pathways that consistently adapted to the host tissue at the transition from the primary tumor to the paired metastasis across donors. This analysis revealed that the majority of expression changes in the metastasis reflect an expression signature reminiscent of benign liver epithelial cells. Cellular processes adapting to the liver environment include basic cellular functions such as energy metabolism, as well as tissue-specific pathways such as the regulation of lipid metabolism by PPAR-α. These adaptations potentially increase the pathogenicity of the metastatic cells and may provide new therapeutic strategies.

  Study EGAS50000000817

• Population_dynamics_in_abnormal_haematopoiesis

  Background: Our recent study has made direct insight into the clonal dynamics of blood cell production in an unperturbed setting in a human. Using whole genome sequencing to track acquired somatic mutations, we were able to construct a phylogenetic tree of different stem and progenitor cells and used this tree to determine the dynamics of mature blood cell production in longitudinal samples. These data set the baseline for understanding population dynamics in abnormal haematopoiesis, and how malignant clones outcompete their normal counterparts to drive haematological malignancies. Aim: This study will measure population dynamics in abnormal human haematopoiesis in patients with clonal blood stem cell disorders. Methods: From patient bone marrow or peripheral blood, we have isolated colonies grown from single blood stem cells/progenitors. Colony DNA will be analysed by whole-genome sequencing to build (or populate) a phylogenetic tree to determine clonal relationships and track stem cell contribution to mature blood cell production. These data will also reveal disease-associated genomic features (mutational burden and mutational signatures) in haematopoietic cells.

  Study EGAS00001003181

• The evolution of hematopoietic cells under cancer therapy

  Chemotherapies may increase mutagenesis of healthy cells and change the selective pressures in tissues thus influencing their evolution. However, their contributions to the mutation burden and clonal expansions of healthy somatic tissues are not clear. Here, exploiting the mutational footprint of some chemotherapies, we explore their influence on the evolution of hematopoietic cells. Cells of Acute Myeloid Leukemia (AML) secondary to treatment with platinum-based drugs showed the mutational footprint of these drugs, indicating that non-malignant blood cells received chemotherapy mutations. No trace of 5-fluorouracil (5FU) mutational signature was found in AML secondary to exposure to 5FU, suggesting that cells establishing the AML were quiescent during treatment. Using the platinum-based mutational signature as a barcode, we determined that secondary AMLs began their clonal expansion after the start of the cytotoxic treatment. Its absence in clonal hematopoiesis cases is consistent with a clonal expansion that predates the exposure to the cytotoxic agent.

  Study EGAS00001005234

• Maternally-Inherited SPTBN1 Mutation

  The dataset consists of exome sequencing data from a male patient with a maternally inherited SPTBN1 mutation. The clinical presentations include autism spectrum disorder, cognitive delay, feeding difficulties, gastrointestinal manifestations, and musculoskeletal abnormalities.

  Dataset EGAD50000001726