Abstract:
:Nitric oxide (NO) exerts vasodilatatory, antiplatelet, antioxidant, and antiproliferative effects. Endothelium-derived NO has been shown to be of crucial importance in cardiovascular protection, whereas evidence that NO is synthesized by platelets and regulates platelet function is still controversial. By using a sensitive and specific fluorescent probe, 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate (DAF-FM), we visualized NO production in individual platelets undergoing adhesion on a collagen substrate under flow conditions. NO production, monitored in real time, was dependent on the shear rates applied, increasing with the raising of the shear rates. Furthermore, NO production increased in the presence of l-arginine (nitric-oxide synthase [NOS] substrate), and it decreased in the presence of L-NG-monomethyl arginine (L-NMMA) (NOS inhibitor) but not of D-NG-monomethyl arginine (D-NMMA) (L-NMMA-inactive enantiomer). Platelet deposition, measured with mepacrine-labeled platelets, was inversely related to NO production. A correlation was evident between Ca(++) elevation and NO production, suggesting that platelet NO formation is triggered by intracytoplasmic Ca(++) elevation. Simultaneous measurement of NO and Ca(++) indicated that NO production in individual platelets is preceded by Ca(++) elevations, with a lag phase of 33 ± 9.5 s. Our studies provide the first direct demonstration of platelet NO production triggered by the interaction with an activating surface under flow and suggest that intraplatelet Ca(++) elevation elicits the production of NO which, in turn, modulates thrombus size.
journal_name
Bloodjournal_title
Bloodauthors
Cozzi MR,Guglielmini G,Battiston M,Momi S,Lombardi E,Miller EC,De Zanet D,Mazzucato M,Gresele P,De Marco Ldoi
10.1182/blood-2014-06-579474subject
Has Abstractpub_date
2015-01-22 00:00:00pages
697-705issue
4eissn
0006-4971issn
1528-0020pii
blood-2014-06-579474journal_volume
125pub_type
杂志文章相关文献
BLOOD文献大全abstract::The polyneuropathy, organomegaly, endocrinopathy, M protein, skin changes (POEMS) syndrome is a rare multisystemic disorder associated with osteosclerotic myeloma and multicentric Castleman's disease (MCD). Human herpesvirus type 8 (HHV-8) DNA sequences have been detected in lymph nodes of about 40% of human immunodef...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::Human T-cell leukemia virus type-I (HTLV-I), the etiologic agent of adult T-cell leukemia (ATL) transforms human T cells both in vivo and in vitro. However, the long latency period between infection and development of ATL, as well as the small fraction of the infected population that actually develops this disease, su...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-12-15 00:00:00
abstract::Thalidomide has been reported to be an effective agent for treatment of chronic graft-versus-host disease (CGVHD). To determine the efficacy of this agent in patients with refractory CGVHD a total of 80 patients who failed to respond to prednisone (PSE) or PSE and cyclosporine (CSA) were treated with thalidomide. Sixt...
journal_title:Blood
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1995-11-01 00:00:00
abstract::Twenty-four adults with ALL were treated with AMSA alone or in combination. Twenty-two were treated at time of relapse and two patients after failing primary induction therapy. All had been treated with anthracyclines prior to receiving AMSA. Of the 22 patients with ALL in relapse, 4 achieved a complete remission. Two...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1982-11-01 00:00:00
abstract::Regulatory molecules produced by stromal cells are often membrane bound until cleaved by matrix metalloproteinases (MMPs); cleavage can either activate or inactivate regulatory functions. We report here that marrow stromal cells induce the expression of MMP-9 in monocytes. Induction was contact independent and could b...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-05-020289
更新日期:2007-01-01 00:00:00
abstract::Hepatitis C virus (HCV) is associated with the B-cell lymphoproliferative disorders mixed cryoglobulinemia (MC) and non-Hodgkin lymphoma. We have previously reported that HCV(+)MC(+) patients have clonal expansions of hypermutated, rheumatoid factor-bearing marginal zone-like IgM(+)CD27(+) peripheral B cells using the...
journal_title:Blood
pub_type: 临床试验,杂志文章
doi:10.1182/blood-2010-10-312942
更新日期:2011-05-19 00:00:00
abstract::In vitro studies suggest that Ras activation is necessary for erythroid cell development. However, genetic inactivation of the Ras isoforms H-Ras, N-Ras, and K-Ras in mice reportedly did not affect adult or fetal erythropoiesis, though K-Ras(-/-) embryos were anemic. Given these discrepancies, we performed a more deta...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-05-2021
更新日期:2005-05-01 00:00:00
abstract::Some Ki-1 lymphomas carry a specific chromosomal translocation, t(2;5)(p23;q35). We have recently found a novel hyperphosphorylated 80-kD protein tyrosine kinase, p80, in a human Ki-1 lymphoma with this translocation. Subsequent cDNA cloning showed that p80 is a fusion protein of two different genes on chromosome 2p23...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1994-12-01 00:00:00
abstract::By using a cDNA clone of the myeloperoxidase (MPO) gene, we have studied, by Northern blot analysis, the level of MPO mRNA in eight cases of acute lymphoblastic leukemia (ALL). The blast cell populations studied were characterized by morphologic, cytochemical, immunochemical, and molecular criteria. With all the metho...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1988-09-01 00:00:00
abstract::The coagulation factors V (FV) and VIII (FVIII) are important at sites of vascular injury for the amplification of the clotting cascade. Natural variants of these factors frequently lead to severe bleeding disorders. To understand the mechanisms of activation of FVIII by thrombin, we used a bank of mutant thrombins to...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-03-0843
更新日期:2002-10-15 00:00:00
abstract::Evidence supporting the efficacy of in utero hematopoietic cell transplantation (IUHCT) in a valid large animal model is needed prior to clinical application. The objective of this study was to establish clinically relevant levels of hematopoietic chimerism in a canine model of maternal-to-fetal IUHCT. We first assess...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2013-11-537571
更新日期:2014-09-18 00:00:00
abstract::Recently, we have identified scavenger receptor class A member I (SR-AI) as a receptor for coagulation factor X (FX), mediating the formation of an FX reservoir at the macrophage surface. Here, we demonstrate that the FX/SR-AI-complex comprises a third protein, pentraxin-2 (PTX2). The presence of PTX2 is essential to ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2016-06-724351
更新日期:2017-04-27 00:00:00
abstract::Non-Hodgkin lymphoma (NHL) incidence is greatly increased after kidney transplantation. NHL risk was investigated in a nationwide cohort of 8164 kidney transplant recipients registered on the Australia and New Zealand Dialysis and Transplant Registry. NHL diagnoses were ascertained using linkage with national cancer r...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2009-02-202507
更新日期:2009-07-16 00:00:00
abstract::We have previously demonstrated that young adult DBA/2 (DBA) mice have more stem cells than C57BL/6 (B6) mice, as measured in a cobblestone area-forming cell (CAFC) assay using unfractionated marrow. To study the nature of this difference, we have now compared the proliferative fate of single, highly enriched Sca-1(+)...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:2000-08-15 00:00:00
abstract::During an 8-year period, 3,638 children from institutions of the Pediatric Oncology Group (POG) were diagnosed with acute lymphoblastic leukemia (ALL). Fifty-seven patients had Philadelphia chromosome-positive (Ph1) ALL. Blast cells obtained at diagnosis from 13 of these 57 cases (23%) were also found to have partial ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
abstract::Commercial porcine factor VIII concentrate (Hyate:C) is effective in treatment of patients with hemophilia A who have circulating antibodies to factor VIII. The molecular forms of factor VIII in the concentrate were identified and evaluated in light of the known properties of porcine and human factor VIII. The factor ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract::Mutations in NBEAL2, the gene encoding the scaffolding protein Nbeal2, are causal of gray platelet syndrome (GPS), a rare recessive bleeding disorder characterized by platelets lacking α-granules and progressive marrow fibrosis. We present here the interactome of Nbeal2 with additional validation by reverse immunoprec...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2017-08-800359
更新日期:2018-03-01 00:00:00
abstract::The long form of B-cell lymphoma-x (Bcl-x(L)), an outer mitochondrial membrane protein, has been proposed to mediate the antiapoptotic action of erythropoietin on erythroid progenitor cells and to be necessary for heme synthesis in erythroblasts. Mice with conditional knockout of Bcl-x(L) (conditional bcl-x(-/-) mice)...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-11-4344
更新日期:2005-09-01 00:00:00
abstract::Chromosome 7 translocations, deletions, or monosomy are associated with myelodysplasia (MDS) and acute myeloid leukemia both in children and adults. These chromosomal anomalies represent one of the most common cytogenetic abnormalities associated with these diseases and usually herald a poor prognosis. In this study t...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::The success of allogeneic hematopoietic cell transplantation depends heavily on the delicate balance between the activity of the donor immune system against malignant and nonmalignant cells of the recipient. Abrogation of alloreactivity will lead to disease relapse, whereas untamed allo-immune responses will lead to l...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2019000951
更新日期:2020-07-23 00:00:00
abstract::Self-renewal is a feature of cancer and can be assessed by cell transplantation into immune-compromised or immune-matched animals. However, studies in zebrafish have been severely limited by lack of these reagents. Here, Myc-induced T-cell acute lymphoblastic leukemias (T-ALLs) have been made in syngeneic, clonal zebr...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2009-10-246488
更新日期:2010-04-22 00:00:00
abstract::The cause of immune thrombocytopenia (ITP) remains unknown. Studies have suggested immunizations as possible triggering factors of ITP through molecular mimicry. This case-control study explored potential associations between adult ITP and various routinely administered vaccines. A network of internal medicine and hem...
journal_title:Blood
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1182/blood-2012-05-431098
更新日期:2012-12-13 00:00:00
abstract::Lymphocyte kinetic studies employing 51-chromium-labeled autologous lymphocytes were performed in nine normal volunteers in order to determine the effects of hydrocortisone administration on the recirculating versus the nonrecirculating intravascular lymphocyte pools. Following infusion of labeled cells, the recircula...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1975-08-01 00:00:00
abstract::Bernard-Soulier syndrome (BSS) platelets, which lack the membrane glycoprotein complex Ib-IX, do not adhere to subendothelium. The adhesion of platelets from two patients with BSS to subendothelial microfibrils (MFs) and type I collagen was compared in an in vitro assay adapted to patients with low platelet count. Wit...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract::R115777 is a potent farnesyltransferase (FTase) inhibitor with substantial antitumor activity in preclinical models. We conducted a phase 1 study (3 + 3 design) of R115777 in patients with myelodysplastic syndrome (MDS). R115777 was administered twice daily (3-weeks-on/1-week-off schedule for 8 weeks) (starting dosage...
journal_title:Blood
pub_type: 临床试验,杂志文章
doi:10.1182/blood-2002-11-3359
更新日期:2003-12-15 00:00:00
abstract::Deep venous thrombosis (DVT) remains a common and serious cardiovascular problem with both fatal and long-term consequences. The consequences of DVT include the development of postthrombotic syndrome in 25% to 60% of DVT patients. Despite the clinical importance of venous thrombus resolution, the cellular and molecula...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2016-07-727180
更新日期:2017-06-15 00:00:00
abstract::The role of T-cell subsets in the induction of tissue factor (TF) production by human monocytes in vitro was investigated. Mitogen stimulation enabled both unfractionated T cells and their CD4+ or CD8+ subsets to promote procoagulant activity (PCA). After mitogen or antigen activation, all seven T-cell clones with Th1...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract::Serial erythrocyte volume distribution curves were used to characterize changes in erythrocyte subpopulations following the induction of Heinz body hemolytic anemia in cats. Macrocytes produced in response to hemolysis were observed after loss of reticulum. After recovery from hemolysis, a gradual reduction in mean ce...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
abstract::The presence and physiologic role of cyclic GMP-dependent protein kinase (G-kinase) in human neutrophils was investigated by Western blot analysis and immunocytochemistry. Small quantities of G-kinase were found in the cytoskeletal-enriched fraction of neutrophil lysates as detected by Western blots using a polyclonal...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1990-08-01 00:00:00
abstract::Endothelial cell prostacyclin (PGI2) inhibits platelet activation by raising platelet cyclic AMP. Previously, platelet activation was also shown to be blocked by plasmin formed by endothelium-derived tissue plasminogen activator (TPA). We have now studied interactions between PGI2 and plasmin in the control of platele...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00