Abstract:
:To identify new cytogenetic abnormalities associated with leukemogenesis or disease outcome, T-cell acute lymphoblastic leukemia (T-ALL) patient samples were analyzed by means of the array-comparative genome hybridization technique (array-CGH). Here, we report the identification of a new recurrent and cryptic deletion on chromosome 11 (del(11)(p12p13)) in about 4% (6/138) of pediatric T-ALL patients. Detailed molecular-cytogenetic analysis revealed that this deletion activates the LMO2 oncogene in 4 of 6 del(11)(p12p13)-positive T-ALL patients, in the same manner as in patients with an LMO2 translocation (9/138). The LMO2 activation mechanism of this deletion is loss of a negative regulatory region upstream of LMO2, causing activation of the proximal LMO2 promoter. LMO2 rearrangements, including this del(11)(p12p13) and t(11;14) (p13;q11) or t(7;11)(q35;p13), were found in the absence of other recurrent cytogenetic abnormalities involving HOX11L2, HOX11, CALM-AF10, TAL1, MLL, or MYC. LMO2 abnormalities represent about 9% (13/138) of pediatric T-ALL cases and are more frequent in pediatric T-ALL than appreciated until now.
journal_name
Bloodjournal_title
Bloodauthors
Van Vlierberghe P,van Grotel M,Beverloo HB,Lee C,Helgason T,Buijs-Gladdines J,Passier M,van Wering ER,Veerman AJ,Kamps WA,Meijerink JP,Pieters Rdoi
10.1182/blood-2006-04-019927subject
Has Abstractpub_date
2006-11-15 00:00:00pages
3520-9issue
10eissn
0006-4971issn
1528-0020pii
blood-2006-04-019927journal_volume
108pub_type
杂志文章相关文献
BLOOD文献大全abstract::Erythroid progenitor cells isolated from patients with polycythemia vera (PV) proliferate and differentiate in methylcellulose in the absence of exogenous erythropoietin (EPO). To investigate the potential role of the erythropoietin receptor (EPO-R) in the pathogenesis of PV, we cultured bone marrow-derived or periphe...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1994-09-15 00:00:00
abstract::AC133 is one of a new panel of murine hybridoma lines producing monoclonal IgG antibodies (mAbs) to a novel stem cell glycoprotein antigen with a molecular weight of 120 kD. AC133 antigen is selectively expressed on CD34(bright) hematopoietic stem and progenitor cells (progenitors) derived from human fetal liver and b...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-12-15 00:00:00
abstract::Hematopoietic transplantation is the preferred treatment for many patients with hematologic malignancies. Some patients may develop invasive fungal diseases (IFDs) during initial chemotherapy, which need to be considered when assessing patients for transplantation and treatment posttransplantation. Given the associate...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2020005884
更新日期:2020-12-10 00:00:00
abstract::Until recently, the identification of cellular factors that govern the developmental program of human stem cells has been difficult due to the absence of repopulation assays that detect human stem cells. The transplantation of human bone marrow (BM) or cord blood (CB) into non-obese diabetic (NOD)/severe-combined immu...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1998-09-15 00:00:00
abstract::The iron storage macrophage has been isolated from the marrow of Imferon-treated mice and studied in vitro by morphologic, histochemical, and functional tests and isotope labeling techniques. These macrophages on stained preparations are large, many times binucleate cells (up to 150 mu), and show Prussian blue reactiv...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1975-03-01 00:00:00
abstract::Cell cycle checkpoints ensure orderly progression of events during cell division. A microtubule damage (MTD)-induced checkpoint has been described in G(1) phase of the cell cycle (G(1)MTC) for which little is known. The present study shows that the G(1)MTC is intact in activated T lymphocytes from mice with the p21(wa...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.v97.5.1505
更新日期:2001-03-01 00:00:00
abstract::Gene therapy for hemophilia A requires efficient delivery of the factor VIII gene and sustained protein expression at circulating levels of at least 1% to 2% of normal. Adeno-associated viral type 2 (AAV2) vectors have a number of advantages over other viral vectors, including an excellent safety profile and persisten...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-01-0292
更新日期:2003-09-15 00:00:00
abstract::Platelets from patients with Montreal platelet syndrome (MPS) consistently display a defect in the mechanisms that regulate platelet size during shape change and undergo spontaneous aggregation and stir-induced microaggregate formation. We now provide data that the surface glycoprotein composition of MPS platelets is ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1989-08-01 00:00:00
abstract::Recurrence of multiple myeloma (MM) after therapy suggests the presence of tumor-initiating subpopulations. In our study, we performed flow cytometry-based Hoechst 33342 staining to evaluate the existence of a MM population with stem-like features known as side population (SP) cells. SP cells exhibit substantial heter...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-02-267344
更新日期:2011-04-28 00:00:00
abstract::T cell-based therapies have much promise in cancer treatment. This approach may be enhanced if used in combination with radiotherapy provided that tumor-specific T cells can be protected against the effects of radiotherapy. Previously, we demonstrated that administration of TLR9 ligand into mice decreased activation- ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2007-07-104141
更新日期:2008-03-01 00:00:00
abstract::Infections during granulocytopenia are major complications of autologous bone marrow transplantation (ABMT). Since recombinant human granulocyte-macrophage colony-stimulating factor (rhuGM-CSF) has proved to accelerate bone marrow recovery after cytostatic chemotherapy, we studied its effects on hematopoietic regenera...
journal_title:Blood
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:1992-11-01 00:00:00
abstract::Human transferrin receptor-2 (TFR-2) is a protein highly homologous to TFR-1/CD71 and is endowed with the ability to bind transferrin (TF) with low affinity. High levels of TFR-2 mRNA were found in the liver and in erythroid precursors. Mutations affecting the TFR-2 gene led to hemochromatosis type 3, a form of inheri...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-01-0076
更新日期:2002-11-15 00:00:00
abstract::The t(11;14)(q13;q32) is the most common translocation in multiple myeloma (MM), resulting in up-regulation of cyclin D1. We used a segregation fluorescence in situ hybridization (FISH) assay to detect t(11;14) breakpoints in primary MM cases and real-time reverse transcriptase-polymerase chain reaction (RT-PCR) to qu...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-11-3837
更新日期:2004-08-15 00:00:00
abstract::Adeno-associated virus (AAV)-based gene therapies can restore endogenous factor VIII (FVIII) expression in hemophilia A (HA). AAV vectors typically use a B-domain-deleted FVIII transgene, such as human FVIII-SQ in valoctocogene roxaparvovec (AAV5-FVIII-SQ). Surprisingly, the activity of transgene-produced FVIII-SQ was...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2020005683
更新日期:2020-11-26 00:00:00
abstract::Pharmacologic and immunologic methods of ex-vivo bone marrow (BM) purging for acute nonlymphocytic leukemia (ANLL) were combined to augment the effect of either method alone. Etoposide (VP16; 20 to 30 micrograms/mL) with or without cytosine arabinoside (Ara C; 10 mg/mL) was used in tandem with the anti-CD33 monoclonal...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1991-01-15 00:00:00
abstract::Pseudomonas aeruginosa pneumonia was produced in dogs with radiation-induced leukopenia to study the comparative efficacy of several different therapies. In a randomized control trial, five treatment regimens were compared: no antibiotics or granulocytes (controls), gentamicin (5 mg/kg/day), carbenicillin (500 mg/kg/d...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1976-05-01 00:00:00
abstract::Megakaryoblastic leukemia 1 (MKL1), identified as part of the t(1;22) translocation specific to acute megakaryoblastic leukemia, is highly expressed in differentiated muscle cells and promotes muscle differentiation by activating serum response factor (SRF). Here we show that Mkl1 expression is up-regulated during mur...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-09-180596
更新日期:2009-03-19 00:00:00
abstract::Cytoplasmic free calcium concentration (Ca2+)i was measured in neutrophils from patients with the classical X-linked form of chronic granulomatous disease (CGD) by trapping the fluorescent calcium indicator Quin 2 in intact cells. CGD neutrophils do not produce superoxide and are only slightly depolarized upon stimula...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::Inherited bleeding, thrombotic, and platelet disorders (BPDs) are diseases that affect ∼300 individuals per million births. With the exception of hemophilia and von Willebrand disease patients, a molecular analysis for patients with a BPD is often unavailable. Many specialized tests are usually required to reach a put...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-12-688267
更新日期:2016-06-09 00:00:00
abstract::Hematopoietic stem cells purified from mouse bone marrow are quiescent with less than 2% of Lin- Hoechst(low)/Rhodamine(low) (Lin- Ho(low)/Rho(low)) and 10% to 15% of Lin-/Sca+ cells in S phase. These cells enter proliferative cycle and progress through G1 and into S phase in the presence of cytokines and 5% heat-inac...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-09-15 00:00:00
abstract::Acute myeloid leukemia (AML) is an aggressive malignancy with a relapse rate approaching 50%, despite aggressive chemotherapy. New therapies for AML are targeted at signal transduction pathways known to support blast survival, such as the Stat3 pathway. Aberrant activation of Stat3 has been demonstrated in many differ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-04-280123
更新日期:2011-05-26 00:00:00
abstract::Vascular endothelial growth factor receptor 2 (VEGFR2) plays a key role in physiologic and pathologic angiogenesis. Plasma membrane (PM) levels of VEGFR2 are regulated by endocytosis and secretory transport through the Golgi apparatus. To date, the mechanism whereby the VEGFR2 traffics through the Golgi apparatus rema...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-06-291690
更新日期:2011-01-27 00:00:00
abstract::There has been increasing interest in the involvement of mammalian homeobox (HOX) genes in hematopoietic regulation. The HOX genes are clustered in 4 chromosomes in mice and humans. In general, 5' end HOX gene expression is predominant in hematopoietic stem cell populations, whereas 3' end HOX gene expression are prim...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-04-15 00:00:00
abstract::MRP14 (S100A9) is the major calcium-binding protein of neutrophils and monocytes. Targeted gene disruption reveals an essential role of this S100 protein for transendothelial migration of phagocytes. The underlying molecular mechanism comprises major alterations of cytoskeletal metabolism. MRP14, in complex with its b...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-02-0446
更新日期:2004-12-15 00:00:00
abstract::Follicular lymphoma (FL) is characterized by a relatively indolent clinical course, but the disease often transforms into a more aggressive large cell lymphoma with a rapidly progressive clinical course. In the present study, we analyzed 41 cases of FL known to have subsequently transformed to aggressive lymphoma and ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-08-2482
更新日期:2003-08-15 00:00:00
abstract::Erythrocytes of neonates and adults were incubated with increasing concentrations of H2O2 in the presence of a catalase inhibitor and in the absence of glucose; the pattern of oxidation of vitamin E was analyzed in relationship to that of glutathione, hemoglobin, and polyunsaturated fatty acids (PUFA), and in relation...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1985-12-01 00:00:00
abstract::A functional thrombin receptor (TR) structurally related to other members of the seven-transmembrane receptor family has been isolated from diverse cellular types intimately involved in the regulation of the thrombotic response. This receptor recapitulates many of the previously identified sequelae of thrombin-mediate...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00
abstract::The CD11b/CD18 leukocyte integrin molecule mediates diverse neutrophil adherence-related functions, including cell:cell and cell:extracellular matrix attachments. To study the individual role of this leukocyte integrin in cell adherence in hematopoietic cells, we expressed the CD11b/CD18 complex on the surface of K562...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1993-10-15 00:00:00
abstract::Immune thrombocytopenia (ITP) is an acquired bleeding disorder characterized by antibody-mediated platelet destruction. Different mechanisms have been suggested to explain accelerated platelet clearance and impaired thrombopoiesis, but the pathophysiology of ITP has yet to be fully delineated. In this study, we tested...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2019003770
更新日期:2020-06-18 00:00:00
abstract::Measurement of plasma levels of two secreted platelet proteins (beta-thromboglobulin and platelet factor 4) has been suggested as a means for detecting increased platelet activation in vivo. A crucial question in the measurement is the distinction between in vivo and in vitro secretion of the proteins. One approach to...
journal_title:Blood
pub_type: 杂志文章,评审
doi:
更新日期:1981-02-01 00:00:00