Abstract:
:Although a large body of data on mobilization have yielded valuable clues, the mechanism(s) dictating egress of stem/progenitor cells during baseline hematopoiesis and after their mobilization are poorly understood. We have previously provided functional in vivo evidence that cytoadhesion molecules, specifically the beta1 integrins, are involved in mobilization; however, the mechanism by which this was achieved was unclear. To provide further insights into the anti-very late antigen 4 (VLA4)/anti-vascular cell adhesion molecule 1 (VCAM-1)-induced mobilization, we used these antibodies to treat mutant mice with compromised growth factor receptor function. We found that mobilization by anti-VLA4 does not depend on a functional granulocyte colony-stimulating factor, interleukin-7 (IL-7), or IL-3alpha receptor. By contrast, the functional kit receptor is required, because W/Wv mice responded minimally, whereas Steel-Dickie (Sl/Sld) responded normally. Both Wv and Sl/Sld mice did not respond to anti-VCAM-1 treatment, in contrast to their +/+ littermates and despite normal levels of VCAM-1 expression in bone marrow cells. The defective response to anti-VCAM-1 in W/Wv mice was corrected after their transplantation with +/+ cells. mev/mev mice showed increased numbers of circulating progenitors before treatment and a heightened response after anti-VLA4 or anti-VCAM-1 treatment. Downmodulation of kit expression was detected in normal bone marrow cells after anti-VLA4 treatment. On the strength of the above findings we conclude that (1) anti-VLA4/VCAM-1-induced mobilization likely requires signaling for stimulation of cell migration; (2) this cooperative signaling involves the kit/kit ligand pathway, and provides a novel example of integrin/cytokine crosstalk; and (3) migration mediated through the kit/kit ligand pathway may be a common contributor to different mobilization stimuli. Dissection of the exact molecular pathways that lead to mobilization remains a future challenge.
journal_name
Bloodjournal_title
Bloodauthors
Papayannopoulou T,Priestley GV,Nakamoto Bsubject
Has Abstractpub_date
1998-04-01 00:00:00pages
2231-9issue
7eissn
0006-4971issn
1528-0020journal_volume
91pub_type
杂志文章相关文献
BLOOD文献大全abstract::In this issue of Blood, Kurtz et al report the potential clinical utility of immunoglobulin high-throughput sequencing as a tool for disease monitoring and surveillance in aggressive B-cell lymphoma. ...
journal_title:Blood
pub_type: 评论,杂志文章
doi:10.1182/blood-2015-04-641738
更新日期:2015-06-11 00:00:00
abstract::The receptors for interleukin-3 (IL-3), IL-5, and granulocyte-macrophage colony-stimulating factor (GM-CSF) are heterodimers comprised of ligand specific alpha chains and a common beta chain. The genes encoding the IL-5 receptor alpha chain and the common beta chain reside on chromosome 3 and 22 respectively, while th...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1993-07-01 00:00:00
abstract::The clinical, morphological, immunologic, and cytogenetic features of seven cases of chronic granulated T cell lymphocytosis with neutropenia were studied. The disorder was characterized by moderate blood and bone marrow lymphocytosis, neutropenia, polyclonal hypergammaglobulinemia, splenomegaly, absence of lymphadeno...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1985-08-01 00:00:00
abstract::The diagnosis of heparin-induced thrombocytopenia (HIT) requires detection of antibodies to the heparin/platelet factor 4 (PF4) complexes via enzyme-linked immunosorbent assay. Addition of excess heparin to the sample decreases the optical density by 50% or more and confirms the presence of these antibodies. One hundr...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-01-262659
更新日期:2010-09-09 00:00:00
abstract::A t(14;18) (q32;q21) chromosome translocation is closely associated with the follicular lymphoma, which is prevalent in the United States, and the t(14;18) causes the juxtaposition of a bcl-2 gene on chromosome 18 with an immunoglobulin heavy-chain gene locus on chromosome 14. Genomic DNAs from 30 Japanese patients wi...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1989-02-15 00:00:00
abstract::The effects of recombinant human erythropoietin (rEp) on murine hematopoietic progenitors were studied using a serum-free culture. A high concentration of rEp stimulated the formation of mixed erythroid-megakaryocyte colonies (EM colonies) and blast cell colonies, as well as erythroid colonies, erythroid bursts, and m...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1990-10-01 00:00:00
abstract::Transfusion-associated graft-versus-host disease can be prevented by treating cellular blood products with gamma irradiation. A wide range of gamma irradiation dose levels has been used in routine practice. We used limiting dilution analysis, which measures clonable T cells, to assess the influence of 500 to 3,000 cGy...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1994-03-15 00:00:00
abstract::T-cell dysfunction after human hematopoietic stem-cell transplantation (HSCT) is generally attributed to intrinsic T-cell defects. Here we show that the characteristic impaired proliferative responses to polyclonal stimulation of post-HSCT peripheral blood mononuclear cells (PB-MCs) were markedly (4-fold) improved by ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-05-1726
更新日期:2005-05-15 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::The mechanisms by which transforming growth factor beta (TGF-beta) exerts a negative effect on cell-cycle entry in primary human hematopoietic stem/progenitor cells were examined at the molecular and cellular levels. After treatment of primary human CD34+ progenitors with TGF-beta there was a decrease in the levels of...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.v99.2.499
更新日期:2002-01-15 00:00:00
abstract::Polymorphonuclear leukocytes (PMNLs) exposed to influenza A virus (IAV) undergo activation of the respiratory burst followed by depression of cell function when subsequently exposed to particulate or soluble stimuli. The effect of IAV on PMNLs is likely to be mediated through the attachment of IAV to one or more speci...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-03-15 00:00:00
abstract::To examine the relationship between dietary iron exposure through the consumption of traditional beer and the presence of iron overload in black Africans not related by birth, we studied 28 husband and wife pairs from a rural Zimbabwean community. Lifetime traditional beer consumption was estimated by questioning subj...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-03-15 00:00:00
abstract::Mycobacterium avium-intracellulare (MAI) is an opportunistic pathogen commonly found in acquired immunodeficiency syndrome patients, whose immune systems are severely compromised. However, normal responses to this bacterium are apparently sufficient to prevent disseminated infection because disease is rarely found unl...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1991-05-15 00:00:00
abstract::p27 is a cyclin-dependent kinase inhibitor that plays a critical role in regulating G(1)/S progression, and whose activity is, in part, regulated through interactions with D-type cyclins. Mantle cell lymphoma (MCL) is characterized by the t(11;14) translocation resulting in deregulated cyclin D1. We previously showed ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-01-0263
更新日期:2003-04-15 00:00:00
abstract::BMS-354825 (dasatinib) and AMN107 (nilotinib) are potent alternate Abl inhibitors with activity against many imatinib mesylate-resistant BCR-ABL kinase domain (KD) mutants, except T315I. We used N-ethyl-N-nitrosourea (ENU)-exposed Ba/F3-p210(BCR-ABL) cells to compare incidence and types of KD mutants emerging in the p...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-02-004580
更新日期:2006-10-01 00:00:00
abstract::Notch is a major factor mediating interaction between hematopoietic progenitor cells (HPCs) and bone marrow stroma (BMS). However its contribution to dendritic cell (DC) differentiation is controversial. We found that main Notch ligands Delta-1 and Jagged-1 had the opposite effect on DC differentiation. Delta-1 promot...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-05-025601
更新日期:2007-01-15 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::Patients with relapsed chronic lymphocytic leukemia (CLL) and high-risk features, such as fludarabine refractoriness, complex karyotype, or abnormalities of chromosome 17p, experience poor outcomes after standard fludaradine-based regimens. Alemtuzumab is a chimeric CD52 monoclonal antibody with activity in CLL patien...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2011-03-341032
更新日期:2011-08-25 00:00:00
abstract::Neutrophil (PMN) activation is associated with increased surface expression of several membrane proteins that are translocated from intracellular pools. Indirect evidence suggests that the intracellular storage pools of complement receptor type 1 (CR1) in resting PMN are distinct from traditional granules and may be t...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-06-15 00:00:00
abstract::Mammalian TOR (mTOR) regulates cell growth, proliferation, and migration. Because mTOR knock-outs are embryonic lethal, we generated a viable hypomorphic mouse by neo-insertion that partially disrupts mTOR transcription and creates a potential physiologic model of mTORC1/TORC2 inhibition. Homozygous knock-in mice exhi...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-05-287821
更新日期:2011-01-27 00:00:00
abstract::This study demonstrates a unique and crucial role of plasmacytoid dendritic cells (pDCs) and pDC-derived type I interferons (IFNs) in the pathogenesis of mouse coronavirus infection. pDCs controlled the fast replicating mouse hepatitis virus (MHV) through the immediate production of type I IFNs. Recognition of MHV by ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-05-023770
更新日期:2007-02-01 00:00:00
abstract::We have shown previously that the cause of anemia in healthy elderly subjects can usually not be identified. In this study, hematopoiesis was examined in 18 healthy elderly subjects with unexplained anemia and in 15 young and 15 healthy elderly individuals without anemia. No reduction in circulating testosterone was n...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1984-03-01 00:00:00
abstract::Renal disease has not been considered a major late complication of bone marrow transplantation. Of 31 evaluable pediatric patients undergoing allogeneic or autologous bone marrow transplantation for neuroblastoma or acute lymphoblastic leukemia, 14 developed a hemolytic anemia, microscopic hematuria, and renal insuffi...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1988-08-01 00:00:00
abstract::In previous studies, the prevalence of HLA-linked hemochromatosis, thought to be the most common genetic illness in whites, has been estimated by identifying homozygotes in the population. Because not all homozygotes express the disease phenotypically, the accuracy of these estimates is uncertain. We analyzed the dist...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract::Mammalian 15-lipoxygenases, which have been implicated in the differentiation of hematopoietic cells are commonly regarded as cytosolic enzymes. Studying the interaction of the purified rabbit reticulocyte 15-lipoxygenase with various types of biomembranes, we found that the enzyme binds to biomembranes when calcium i...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Attempts to maintain or expand primitive hematopoietic stem cells in vitro without the concomitant loss of their differentiative and proliferative potential in vivo have largely been unsuccessful. To investigate this problem, we compared the ability of three cloned bone marrow (BM) stromal cell lines to support the gr...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::Mice lacking all 3 Vav proteins fail to produce significant numbers of recirculating follicular or marginal zone B cells. Those B cells that do mature have shortened lifespans. The constitutive nuclear factor-kappaB (NF-kappaB) activity of resting naive B cells required Vav function and expression of cellular reticulo...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-12-4894
更新日期:2005-10-01 00:00:00
abstract::A model of Protein C (PC) activation in vivo was used to investigate the complexing of activated PC (APC) with its plasma inhibitors, PC inhibitor (PCI) and alpha 1-antitrypsin (alpha 1AT). Chimpanzees were infused with a bolus of activated factor X (F.Xa) together with vesicles of phosphatidylcholine and phosphatidyl...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1990-06-01 00:00:00
abstract::The International Prognostic Index (IPI) has been the basis for determining prognosis in patients with aggressive non-Hodgkin lymphoma (NHL) for the past 20 years. Using raw clinical data from the National Comprehensive Cancer Network (NCCN) database collected during the rituximab era, we built an enhanced IPI with th...
journal_title:Blood
pub_type: 杂志文章,多中心研究
doi:10.1182/blood-2013-09-524108
更新日期:2014-02-06 00:00:00
abstract::Lymphomatoid granulomatosis (LyG) is an angiodestructive lymphoproliferative disorder (LPD) often involving the lungs. Its etiology is uncertain, but a number of previous studies had suggested it is a T-cell LPD associated with Epstein-Barr virus (EBV). Because of the similarity between LYG and nasal angiocentric lymp...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00