Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA101847 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:WXS files for paper titled "Integrative Analysis of Pediatric Acute Leukemia Identifies Acute Myeloid/T-Lymphoblastic Leukemia Subtype that Spans a T Lineage and Myeloid Continuum with Distinct Prognoses"
| EGAD00001006443 | EGA
Project description:RNASeq files for paper titled "Integrative Analysis of Pediatric Acute Leukemia Identifies Acute Myeloid/T-Lymphoblastic Leukemia Subtype that Spans a T Lineage and Myeloid Continuum with Distinct Prognoses"
| EGAD00001006444 | EGA
Project description:WGS files for paper titled "Integrative Analysis of Pediatric Acute Leukemia Identifies Acute Myeloid/T-Lymphoblastic Leukemia Subtype that Spans a T Lineage and Myeloid Continuum with Distinct Prognoses"
| EGAD00001006442 | EGA
Project description:<p>Pediatric <i>de novo</i> acute myeloid leukemia (AML) is a heterogeneous disease that can be divided into clinically distinct subtypes based on the presence of specific chromosomal abnormalities or gene alterations. One of the best characterized subtypes of AML involves leukemias with alterations of the core-binding factor (CBF)-complex, which comprises the FAB subtypes M2 and M4Eo and associates with a favorable outcome. Patients with the AML M2 subtype harbor a translocation between chromosomes 8 and 21 [t(8;21)] that yields the chimeric fusion gene <i>RUNX1(AML1)-RUNX1T1(ETO)</i>, while patients with AML M4Eo express the chimeric fusion gene <i>CBFβ-SMMHC(MYH11)</i> as a result of an inversion/translocation event of chromosome 16 [inv(16)/t(16;16)]. In an effort to define the total complement of genetic changes in CBF-leukemia, we performed paired-end whole genome sequencing (WGS) on diagnostic leukemia blasts and matched germ line samples from 17 pediatric CBF-leukemia patients using the Illumina platform. Somatic alterations, including single nucleotide variations (SNVs) and structural variations (SVs), including insertions, deletions, inversions, and inter- and intra-chromosomal rearrangements, were detected using complementary analysis pipelines (Bambino, CREST and CONSERTING). Recurrent screening of identified mutations will be performed in a cohort of approximately 94 cases of CBF-leukemias.</p>
| phs000414 | dbGaP
Project description:Additional files for "The Genomic Landscape of Core-Binding Factor Acute Myeloid Leukemias" (EGAS00001000349). This dataset includes the processed RNASeq data referenced in this paper.
| EGAD00001002530 | EGA
Project description:Additional files for "The Genomic Landscape of Core-Binding Factor Acute Myeloid Leukemias" (EGAS00001000349). This dataset includes the processed Excap data referenced in this paper.
| EGAD00001002667 | EGA
Project description:High-Resolution Genomic Profiling of Adult and Pediatric Core-Binding-Factor Acute Myeloid Leukemia Reveals New Recurrent Genomic Alterations
| PRJNA147873 | ENA
Project description:Core binding factor (CBF) leukemias, characterized by translocations t(8;21) or inv(16)/t(16;16) targeting the core binding factor, constitute acute myeloid leukemia (AML) subgroups with favorable prognosis. However, about 40% of patients relapse, and the current classification system does not fully reflect this clinical heterogeneity. Previously, gene expression profiling (GEP) revealed two distinct CBF leukemia subgroups displaying significant outcome differences and identified apoptotic signaling, MAPKinase signaling and chemotherapy-resistance mechanisms among the most significant differentially regulated pathways. We now tested different inhibitors of the respective pathways in a cell line model (six cell lines reflecting the CBF subgroup specific gene expression alterations), and found apoptotic signaling to be differentiating between the CBF subgroup models. In accordance, primary samples from newly diagnosed CBF AML patients (n=23) also showed differential sensitivity to in vitro treatment with a Smac mimetic such as BV6, an antagonist of inhibitor of apoptosis (IAP) proteins , and ABT-737, a BCL2 inhibitor. Furthermore, GEP revealed the BV6 resistant cases to resemble the previously identified unfavorable CBF subgroup. Thus, our current findings show deregulated IAP expression and apoptotic signaling to differentiate clinically relevant CBF subgroups, which were independent of known molecular markers, thereby providing a starting point for novel therapeutic approaches. All samples were obtained from untreated patients at the time of diagnosis. Cells used for microarray analysis were collected from the purified fraction of mononuclear cells after Ficoll density centrifugation. Routine diagnostic algorithms, including the characterization of molecular markers are performed.
2011-06-11 | E-GEOD-29883 | biostudies-arrayexpress
Project description:Mixed phenotype acute leukemia (MPAL) also known as acute leukemia of ambiguous lineage (ALAL), is characterized by leukemic blasts with both lymphoid and myeloid cell surface markers. Here, we use SC multiomic profiling on newly diagnosed MPAL samples to characterize the immunophenotypic, genetic, and transcriptional landscapes of MPAL. This profiling allows us to definitively contradict the paradigm of MPAL as a disease on a continuum with myeloid and lymphoid lineage acute leukemias, and instead identifies MPAL as a distinct, stem-like disease that, unlike other leukemias, cannot be defined by genetics alone. We further describe a stem cell gene expression signature for MPAL that can predict patient survival. These results broaden our understanding of MPAL biology and suggest a path toward novel risk stratification for MPAL. Importantly, these findings have potential to direct treatment and, hopefully, ultimately improve the prognosis of this disease.
2024-03-13 | GSE261228 | GEO