Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA223180 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Somatic mutations in variant and IGHV4-34 expressing hairy cell leukemia
| PRJNA223178 | ENA
Project description:<p>To understand the genetic mechanisms driving variant and IGHV4-34 expressing hairy-cell leukemia, we performed whole exome sequencing of tumor/normal pairs from ten patients.</p>
| phs000671 | dbGaP
Project description:<p>To understand the genetic mechanisms driving variant and IGHV4-34 expressing hairy-cell leukemia, we performed whole exome sequencing of tumor/normal pairs from ten patients.</p>
| phs000671.v1.p1 | EGA
Project description:The hairy cell leukemia line JOK1 with low RhoH expression was stably trasfected with either an empty expression vector or this same vector expressing human RhoH. The transcriptomes of these two daughter lines were then compared by differential microarray analysis The hairy cell leukemia line JOK1 with low RhoH expression was stably trasfected with either an empty expression vector or this same vector expressing human RhoH. The transcriptomes of these two daughter lines were then compared by differential microarray analysis
2021-01-03 | GSE156483 | GEO
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a high-risk subtype of B-ALL often associated with genetic variants that alter cytokine receptor signaling, including mutations in the interleukin-7 receptor (IL7R). To investigate whether IL7R variants are leukemia-initiating, we built mouse models expressing activated Il7r (aIL7R). B-cell intrinsic aIL7R mice developed spontaneous B-ALL, demonstrating sufficiency of Il7r activating mutations in leukemogenesis. Concomitant introduction of a knock-out allele in the associated adapter protein Lnk (encoded by Sh2b3) or a dominant-negative variant of the transcription factor Ikaros (Ikzf1) increased disease penetrance. The resulting murine leukemias displayed monoclonality and recurrent somatic Kras mutations and efficiently engrafted into immunocompetent mice. Phosphoproteomic analyses of aIL7R leukemic cells revealed constitutive Stat5 signaling and B cell receptor (BCR)-like signaling despite absence of surface pre-BCR. Finally, in vitro treatment of aIL7R leukemic B-cells with Jak, mTOR, or Syk inhibitors blocked growth, confirming that each pathway is active in this mouse model of IL7R-driven B-ALL
2021-06-28 | PXD026438 | Pride
Project description:Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a high-risk subtype of B-ALL often associated with genetic variants that alter cytokine receptor signaling, including mutations in the interleukin-7 receptor (IL7R). To investigate whether IL7R variants are leukemia-initiating, we built mouse models expressing activated Il7r (aIL7R). B-cell intrinsic aIL7R mice developed spontaneous B-ALL, demonstrating sufficiency of Il7r activating mutations in leukemogenesis. Concomitant introduction of a knock-out allele in the associated adapter protein Lnk (encoded by Sh2b3) or a dominant-negative variant of the transcription factor Ikaros (Ikzf1) increased disease penetrance. The resulting murine leukemias displayed monoclonality and recurrent somatic Kras mutations and efficiently engrafted into immunocompetent mice. Phosphoproteomic analyses of aIL7R leukemic cells revealed constitutive Stat5 signaling and B cell receptor (BCR)-like signaling despite absence of surface pre-BCR. Finally, in vitro treatment of aIL7R leukemic B-cells with Jak, mTOR, or Syk inhibitors blocked growth, confirming that each pathway is active in this mouse model of IL7R-driven B-ALL.
2021-06-28 | PXD026322 | Pride
Project description:Analysis of the expression profile of 298 mRNA's, measured with the nCounter (Nanostring Technologies platform), in 13 samples from the peripheral blood of Hairy cell leukemia patients Hairy cell leukemia (HCL) is a rare chronic B-cell malignancy, characterized by infiltration of bone marrow, blood and spleen by typical “hairy cells” that bear the BRAFV600E mutation. However, in addition to the intrinsic activation of the MAP kinase pathway as a consequence of the BRAFV600E mutation, the potential participation of other signaling pathways to the pathophysiology of the disease remains unclear. Using mRNA gene expression profiling based on the Nanostring technology and the analysis of 290 genes with crucial roles in B-cell lymphomas, we defined a 17 gene expression signature specific for HCL. Our analysis revealed intrinsic activation of the non-canonical NF-B pathway with underexpression of BIRC2 and BIRC3, two specific non-canonical NF-B inhibitors. Western blots confirmed activation of this pathway with increased processing of p100 in primary HCL samples. Separate analysis of samples from classical and variant forms of hairy cell leukemia showed almost similar mRNA expression profiles apart from overexpression in vHCL of the immune checkpoints CD274 and PDCD1LG2 and underexpression of FAS. Our results provide a better understanding of the pathogenesis of HCL and describe new and potential targets for treatment approaches and guidance for studies in the molecular mechanisms of HCL.
2020-11-12 | GSE161279 | GEO
Project description:Chronic lymphocytic leukemia (CLL) stereotyped subsets #6 and #8 include cases expressing unmutated B cell receptor immunoglobulin (BcR IG) (U-CLL). Yet, subset #6 (IGHV1-69/IGKV3-20) is less aggressive compared to subset #8 (IGHV4-39/IGKV1(D)-39) which has the highest risk for Richter’s transformation among all CLL. The underlying reasons for this divergent clinical behavior are not fully elucidated. To gain insight into this issue, here we focused on their gene expression profiling and performed RNA-seq.
2019-04-04 | E-MTAB-6962 | biostudies-arrayexpress
Project description:Molecular signatures for Hairy cell leukemia
| PRJNA676121 | ENA