Abstract:
:The initiation of primary hemostasis is mediated by interaction of the platelet glycoprotein Ib (GPIb) surface receptor and its arterial subendothelial von Willebrand factor (vWF) ligand. The intracellular signaling immediately following GPIb receptor occupancy connecting the adhesive event to platelet activation and aggregation has not been well characterized. The 14-3-3 proteins are a 27- to 30-kD ubiquitous protein family with diverse biologic roles, including functional modulation of several prominent signaling proteins. We used the yeast two-hybrid system and confocal microscopy to characterize the recently described interaction between GPIb and platelet 14-3-3zeta, and provide evidence for the potential signaling role of this protein. Two-hybrid interactions suggest that platelet 14-3-3zeta associates with the cytoplasmic domain of GPIb subunits Ibalpha and Ibbeta in transformed yeast cells. The 14-3-3 interaction with GPIbbeta may be partly mediated through the latter's phosphorylated serine 166 residue as its mutagenesis results in 20% to 40% reduced interaction. There was 51% to 59% reduced interaction between GPIb and three 14-3-3zeta deletion mutants compared with full-length 14-3-3zeta, suggesting that either the N-terminal dimerization or membrane-binding domains or more than one noncontiguous 14-3-3zeta element may be required for optimal GPIb interaction. Confocal studies of platelets and a megakaryocyte cell line provided additional evidence for interaction of 14-3-3zeta with GPIbalpha and GPIbbeta. We also found that, similar to the signaling mediators phosphatidylinositol 3-kinase and Src, platelet cytoskeletal 14-3-3zeta content is increased following vWF and ristocetin stimulation. We suggest that platelet 14-3-3zeta interacts with GPIbalpha and Ibbeta, that this interaction may be partly mediated through phosphoserine recognition, and that 14-3-3zeta cytoskeletal translocation may serve as a GPIb post-receptor occupancy signaling event.
journal_name
Bloodjournal_title
Bloodauthors
Calverley DC,Kavanagh TJ,Roth GJsubject
Has Abstractpub_date
1998-02-15 00:00:00pages
1295-303issue
4eissn
0006-4971issn
1528-0020journal_volume
91pub_type
杂志文章相关文献
BLOOD文献大全abstract::Acquired chromosomal anomalies (most commonly translocations) in lymphoma and leukemia usually result in either activation of a quiescent gene (by means of immunoglobulin or T-cell-receptor promotors) and expression of an intact protein product, or creation of a fusion gene encoding a chimeric protein. This review sum...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood.v99.2.409
更新日期:2002-01-15 00:00:00
abstract::HS1 (hematopoietic cell-specific Lyn substrate-1) is a cytoskeletal interactor in the B-cell receptor (BCR) signaling pathway whose phosphorylation correlates with prognosis in Chronic Lymphocytic Leukemia (CLL). The differentially phosphorylated sites and the kinases that regulate HS1 activity in CLL remain poorly un...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2012-09-457119
更新日期:2013-03-21 00:00:00
abstract::To assess the frequency and significance of nonrandom abnormalities of chromosome 9p in childhood acute lymphoblastic leukemia (ALL), we analyzed our experience with 398 consecutive cases with completely banded karyotypes. Forty cases (10%) with abnormalities of 9p were identified: 26 with deletions, nine with unbalan...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1989-07-01 00:00:00
abstract::An inverse relationship between BCL-2 expression and cell cycle transition has been suggested by recent studies in murine models. To investigate the clinical relevance of these laboratory studies, a group of 116 paraffin-embedded non-Hodgkin's lymphoma (NHL) biopsy specimens (Working Formulation Groups D-H, and J) fro...
journal_title:Blood
pub_type: 临床试验,杂志文章
doi:
更新日期:1998-02-15 00:00:00
abstract::Six hundred twelve eligible, previously untreated patients with active multiple myeloma and at least some data available for analysis were entered into a randomized trial (Southwest Oncology Group [SWOG] Phase III myeloma study 8229/30), in which the prognostic significance of pretreatment serum beta 2 microglobulin l...
journal_title:Blood
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1990-02-15 00:00:00
abstract::K-562 human leukemia cells grown in the presence of specific goat anti-K-562 gamma globulin, F(ab)'2, Fab', or Fab showed a decrease in DNA and protein syntheses and a loss of cell viability within several hours. Eventually all cells died and lysed within 2-5 days. These events occurred in the absence of added effecto...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1982-01-01 00:00:00
abstract::A substantial body of published data suggests activation of lineage-specific genes in multipotential hemopoietic cells before their unilineage commitment. Because the behavior and plasticity of cells isolated in vitro away from microenvironmental constraints exercised in vivo may be altered, one wonders whether simila...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:2000-02-15 00:00:00
abstract::Follicular lymphoma (FL) is an indolent malignancy of germinal center B cells. Although the overall survival of FL patients has recently improved with the introduction of novel therapies, there is significant heterogeneity in patient outcome and a need for rationally designed therapeutic strategies that target disease...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood-2017-08-737361
更新日期:2018-02-08 00:00:00
abstract::Active immunization with the idiotype of follicular lymphoma induces tumor-specific immunity. T cells induced in vivo by idiotype vaccination recognize human leukocyte antigen (HLA)--restricted hypervariable but not conserved idiotype peptides. We hypothesized that idiotype-directed T-cell immunity occurs naturally an...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-02-270199
更新日期:2010-09-09 00:00:00
abstract::Daratumumab, a monoclonal CD38 antibody, is approved in the treatment of myeloma, but its efficacy and safety in light-chain (AL) amyloidosis has not been formally studied. This prospective phase 2 trial of daratumumab monotherapy for the treatment of AL amyloidosis was designed to determine the safety, tolerability, ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2019004436
更新日期:2020-04-30 00:00:00
abstract::The human immunodeficiency virus (HIV) causes impairment of the immune system in part by targeting CD4(+) T cells for infection and dysfunction. HIV envelope (Env) present on free virions and infected cells causes dysfunction of uninfected bystander CD4(+) T cells via interaction with both CD4 and coreceptors. Env is ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-08-038661
更新日期:2007-03-15 00:00:00
abstract::Uncontrolled activation of the complement system against endothelial and blood cells is central to the pathogenesis of atypical hemolytic uremic syndrome (aHUS). aHUS patients frequently carry mutations in the inhibitory complement regulator factor H (FH). Mutations cluster in domains 19 and 20 (FH19-20), which are cr...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-11-680009
更新日期:2016-06-02 00:00:00
abstract::In previous studies we have found that monocytes produce soluble factors that stimulate human umbilical vein endothelial cells to produce granulocyte-macrophage colony-stimulating activity (CSA), burst-promoting activity (BPA), and megakaryocyte colony-stimulating activity (Meg-CSA) as well as factors that stimulate T...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1986-08-01 00:00:00
abstract::Mutations that produce glucose-6-phosphate dehydrogenase (G6PD) deficiency have been identified in samples from patients with hemolytic disease in the United States, and in G6PD-deficient samples from Greece, the Canary Islands, the Czech and Slovak Republics, South China, and in samples from the Coriell Cell Reposito...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Human herpesvirus 6 (HHV-6) is a potentially immunosuppressive agent that has been suggested to act as a cofactor in the progression of HIV disease. Exposure of human macrophages to HHV-6A or HHV-6B profoundly impaired their ability to produce interleukin 12 (IL-12) upon stimulation with interferon-gamma (IFN-gamma) a...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-10-3152
更新日期:2003-10-15 00:00:00
abstract::Hairy cell leukemia variant (HCLv) presents with high disease burden, lack of typical antigens like CD25, and poor response to standard treatments like cladribine. Occasionally, patients with classic HCL respond poorly. Clinical and molecular features of HCL and HCLv has not been compared. Rearrangements expressing im...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2009-01-201731
更新日期:2009-11-19 00:00:00
abstract::Although the potential role of Pim2 as a cooperative oncogene has been well described in lymphoma, its role in leukemia has remained largely unexplored. Here we show that high expression of Pim2 is observed in patients with acute promyelocytic leukemia (APL). To further characterize the cooperative role of Pim2 with p...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2009-03-210070
更新日期:2010-06-03 00:00:00
abstract::Although the rheologic behavior of sickle erythrocytes (SS cells) is highly dependent on oxygen tension (pO2) and temperature, very little data exist regarding the effects of deoxygenation and reoxygenation on the rheology of "individual" SS cells at body temperature. We have devised and assessed a new experiment syst...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1992-04-15 00:00:00
abstract::Human granulocyte colony-stimulating factor (G-CSF) is a regulatory glycoprotein that stimulates the production of neutrophilic granulocytes from committed hematopoietic progenitor cells both in vitro and in vivo. In this report, we show that biosynthetic (recombinant) human G-CSF enhances colony formation by normal h...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1990-02-15 00:00:00
abstract::The periprocedural management of patients receiving long-term oral anticoagulant therapy remains a common but difficult clinical problem, with a lack of high-quality evidence to inform best practices. It is a patient's thromboembolic risk that drives the need for an aggressive periprocedural strategy, including the us...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood-2012-06-415943
更新日期:2012-10-11 00:00:00
abstract::Recombinant human macrophage colony-stimulating factor (rhM-CSF) was given to cynomolgus monkeys by continuous intravenous infusion or subcutaneous injection, at a dose of 50 to 100 micrograms/kg/d in repetitive 14-day cycles. Starting within 24 to 48 hours of initiation of rhM-CSF, there was a progressive increase in...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1990-05-15 00:00:00
abstract::Two patients with progressive hairy cell leukemia following splenectomy were treated with low-dose daily chlorambucil. Both had an objective hematologic response as determined by a return to normal hematocrit and platelet count. This was also reflected in the mononuclear cell fraction by the normalization of cholester...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1982-07-01 00:00:00
abstract::Lymphatic endothelial cells (LECs) induce peripheral tolerance by direct presentation to CD8 T cells (T(CD8)). We demonstrate that LECs mediate deletion only via programmed cell death-1 (PD-1) ligand 1, despite expressing ligands for the CD160, B- and T-lymphocyte attenuator, and lymphocyte activation gene-3 inhibitor...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2012-04-427013
更新日期:2012-12-06 00:00:00
abstract::Specific monoclonal and polyclonal antibody reagents and a double antigen indirect immunofluorescence microscopy technique were used to visualize coagulation factor V in human bone marrow. Marrow aspirates were smeared directly on glass slides, or washed and cytospun onto glass slides, or processed and plated into a p...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1985-06-01 00:00:00
abstract::We have verified the hypothesis that multiple myeloma (MM) may be disseminated by circulating clonogenic cells that selectively home to the bone marrow (BM) to receive the signal(s) leading to proliferation, terminal differentiation, and production of the osteoclast activating factors. Long-term cultures of stromal ce...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1991-06-15 00:00:00
abstract::The finding that the risk of relapse in hematologic malignancy decreases after allogeneic hematopoietic stem cell transplantation (HSCT) has lead to the concept of a graft-versus-leukemia (GVL) effect. However, this beneficial effect is considered to be frequently offset by graft-versus-host disease (GVHD). Thus, impr...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-08-171934
更新日期:2009-03-19 00:00:00
abstract::Dendritic cells are the most potent antigen-presenting cells of the immune system. Although dendritic cells are likely to secrete selective cytokines that facilitate antigen presentation, the difficulty in isolating pure dendritic cells in sufficient numbers has made assessment of this function imprecise. In this stud...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::Light-mediated release of signaling ligands, such as chemoattractants, growth factors, and cytokines is an attractive strategy for investigation and therapeutic targeting of leukocyte communication and immune responses. We introduce a versatile optogenetic method to control ligand secretion, combining UV-conditioned e...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-11-684852
更新日期:2016-06-09 00:00:00
abstract::Aberrant activation of the Wnt pathway plays a pathogenetic role in various tumors and has been associated with adverse outcome in acute lymphoblastic leukemia (ALL). LEF1, a key mediator of Wnt signaling, has been linked to leukemic transformation, and recurrent mutations of LEF1 have been identified in pediatric T-A...
journal_title:Blood
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1182/blood-2011-04-350850
更新日期:2011-12-08 00:00:00
abstract::An increasing number of reports document instances in which individual leukemic cells coexpress markers normally believed to be restricted to a single lineage. This has been interpreted by McCulloch and colleagues as aberrant programming or lineage infidelity and contrasts with earlier suggestions that lineage fidelit...
journal_title:Blood
pub_type: 杂志文章,评审
doi:
更新日期:1986-01-01 00:00:00