Abstract:
:Rauscher murine erythroleukemia cells, grown continuously in vitro, undergo erythroid differentiation in response to the hormone erythropoietin. Therefore, they serve as an important model system with which to examine critical biochemical aspects of this developmental process. Intact, uninduced Rauscher cells possess a functional beta-adrenergic receptor-adenylate cyclase complex. The adrenergic agonists, isoproterenol, epinephrine, and norepinephrine, exhibited activation constants (Kact) of 0.1, 0.5, and 20 mumol/L, respectively. Thus, the beta-receptor-cyclase complex of Rauscher cells is apparently one of the most sensitive of all erythroid cells reported thus far. The epinephrine-stimulated cyclic adenosine monophosphate (cAMP) response was inhibited by propranolol, alprenolol, and hydroxybenzylpindolol, with inhibition constants (KI) of 3.8, 2.2, and 0.1 nmol/L, respectively. Using [125I]-iodohydroxybenzylpindolol as ligand, uninduced Rauscher cells were shown to possess 1,100 receptors/cell, with an equilibrium dissociation constant (KD) of 400 pmol/L. Erythropoietin, but not dimethylsulfoxide, induction caused a specific increase in receptor density to 3,300/cell on differentiating Rauscher cells. This is the first demonstration of membrane receptor regulation by erythropoietin that may be important in the complex interplay of hormonal effects during erythropoiesis.
journal_name
Bloodjournal_title
Bloodauthors
Sytkowski AJ,Kessler CJsubject
Has Abstractpub_date
1984-07-01 00:00:00pages
84-90issue
1eissn
0006-4971issn
1528-0020journal_volume
64pub_type
杂志文章相关文献
BLOOD文献大全abstract:UNLABELLED:Several studies have demonstrated that hematopoietic cells originate from endotheliumin early development; however, the phenotypic progression of progenitor cells during human embryonic hemogenesis is not well described. Here, we define the developmental hierarchy among intermediate populations of hematopoie...
journal_title:Blood
pub_type: 临床试验,杂志文章
doi:10.1182/blood-2012-07-444208
更新日期:2013-01-31 00:00:00
abstract::Fas ligand (FasL) and perforin pathways not only are the major mechanisms of T cell-mediated cytotoxicity but also are involved in homeostatic regulation of these T cells. In the present study, we tested whether CD8+ donor T cells that are deficient in both perforin and FasL (cytotoxic double deficient [cdd]) could in...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2004-08-3036
更新日期:2005-03-01 00:00:00
abstract::To test the hypothesis that skeletal muscle myosins can directly influence blood coagulation and thrombosis, ex vivo studies of the effects of myosin on thrombogenesis in fresh human blood were conducted. Addition of myosin to blood augmented the thrombotic responses of human blood flowing over collagen-coated surface...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2016-03-707679
更新日期:2016-10-06 00:00:00
abstract::Tissue-type plasminogen activator (t-PA) is less active in vivo and in vitro against clots that are enriched in platelets, even at therapeutic concentrations. The release of radioactivity from 125I-fibrin-labeled clots was decreased by 47% 6 hours after the addition of t-PA 400 U/mL when formed in platelet-rich versus...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1992-03-15 00:00:00
abstract::Recently, the interleukin-2 receptor (IL-2R) was shown to be present on human neutrophils, and IL-2-neutrophil interactions are believed to be important in both tumor rejection and increased susceptibility to bacterial infections. Furthermore, neutrophils have been shown to synthesize host defense proteins, such as cy...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00
abstract::Anaplastic large cell lymphoma (ALCL) is composed of large, frequently bizarre, cells of T- or null-cell phenotype that show a preferential sinusoidal growth pattern and consistent CD30 positivity. Whether these tumors represent a single entity or several, and what the exact cell origin, is controversial. Recently, gr...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1997-02-01 00:00:00
abstract::Immunostimulatory sequences (ISS) are short oligonucleotides containing unmethylated cytosine-phosphate-guanine (CpG) dinucleotides that stimulate innate immune responses through Toll-like receptor-9 on B cells and plasmacytoid dendritic cell (PDC) precursors. The anti-inflammatory cytokine interleukin (IL)-10 is pred...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-07-2465
更新日期:2003-12-15 00:00:00
abstract::miRNAs have emerged as master regulators of cancer-related events. miRNA dysregulation also occurs in Kaposi sarcoma (KS). Exploring the roles of KS-associated miRNAs should help to identify novel angiogenesis and lymphangiogenesis pathways. In the present study, we show that Kaposi sarcoma-associated herpesvirus (KSH...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2011-01-330589
更新日期:2011-09-08 00:00:00
abstract::Patients with disseminated follicular non-Hodgkin's lymphoma (NHL) are only occasionally cured with standard chemotherapy regimens. Although most of these tumors are initially responsive to chemotherapy, in 40% to 70% of patients the lymphoma will eventually transform to an NHL of higher grade malignancy and a poorer ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1989-11-15 00:00:00
abstract::Hematopoietic stem cell (HSC) transplantation is a lifesaving therapy for malignant and nonmalignant hematologic diseases and metabolic disorders. Although successful, hematopoietic transplantation can be hindered by inadequate stem cell number or poor engrafting efficiency. To overcome these deficits, we and others h...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2013-07-515288
更新日期:2013-10-24 00:00:00
abstract::We report the international experience in outcomes after related and unrelated hematopoietic transplantation for infantile osteopetrosis in 193 patients. Thirty-four percent of transplants used grafts from HLA-matched siblings, 13% from HLA-mismatched relatives, 12% from HLA-matched, and 41% from HLA-mismatched unrela...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-01-625541
更新日期:2015-07-09 00:00:00
abstract::Adenovirus infections occur in 5% to 21% of patients following stem cell transplantation (SCT), with an associated mortality of up to 50%. However, a lack of prospective studies has hampered further developments in the understanding and management of this infection in the posttransplantation setting. We prospectively ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2002-02-0377
更新日期:2002-09-01 00:00:00
abstract::Fanconi anemia (FA) is an autosomal recessive disease marked by developmental defects, bone marrow failure, and cancer susceptibility. FA cells are hypersensitive to DNA cross-linking and alkylating agents and accumulate in the G2 phase of the cell cycle in response to these agents. FA cells also display genomic insta...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-08-01 00:00:00
abstract::Hematopoietic fate maps in the developing mouse embryo remain imprecise. Definitive, adult-type hematopoiesis first appears in the fetal liver, then progresses to the spleen and bone marrow. Clonogenic common lymphoid progenitors and clonogenic common myeloid progenitors (CMPs) in adult mouse bone marrow that give ris...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.v98.3.627
更新日期:2001-08-01 00:00:00
abstract::The active form of vitamin D3 [1 alpha, 25-dihydroxyvitamin-D3 (1 alpha, 25(OH)2D3)] modulates the proliferation and differentiation of hematopoietic cells. Analogs of 1 alpha, 25(OH)2D3 that have greater potency may have the potential as adjuvant therapy for high-risk patients in remission for acute myelogenous leuke...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-09-15 00:00:00
abstract::Thirty-four adult and pediatric hemophilia A and B patients and 50 nonhemophilic members belonging to 28 families were enrolled in August 1984 in a study of human T cell lymphotropic virus type III/lymphadenopathy-associated virus (HTLV-III/LAV) antibody status and T cell subpopulation numbers. All 50 household contac...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract::Evidence is presented showing that a protein tyrosine phosphatase different from CD45 is present on the membrane of human hematopoietic cells. The molecule recognized by the monoclonal antibody 143-41, which has been classified as CD148 in the VI International Workshop on Leukocyte Differentiation Antigens, was immuno...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1998-04-15 00:00:00
abstract::The effects of alpha 2-antiplasmin and fibrin on the activation of plasminogen by recombinant staphylokinase (STAR) were studied in an effort to elucidate further the molecular basis of the fibrin-specificity of this fibrinolytic agent. In purified systems consisting of 1.5 mumol/L intact or low-M(r) plasminogen and 3...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1993-08-15 00:00:00
abstract::A mechanism to control development of mast cells was investigated in mice. Although mast cells in the skin of normal C57BL/6 mice were still of host type 290 days after irradiation and injection of bone marrow cells from beige (Chediak-Higashi syndrome, C57BL/6 bgJ/bgJ) mice, donor-type mast cells with giant granules ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::We have performed a retrospective analysis of the development of T- and B-cell functions after HLA-nonidentical T-cell-depleted bone marrow transplantation (BMT) performed in 193 patients with severe combined immunodeficiency (SCID) at 18 European centers between December 1982 and December 31, 1993. One hundred sixtee...
journal_title:Blood
pub_type: 杂志文章,多中心研究
doi:
更新日期:1998-05-15 00:00:00
abstract::Glutathione-S-transferase (GST)-Grb2 fusion proteins have been used to identify the potential role of Grb2-binding proteins in platelet activation by the platelet low-affinity IgG receptor, Fc gamma RIIA. Two tyrosine phosphoproteins of 38 and 63 kD bind to the SH2 domain of Grb2 following Fc gamma RIIA stimulation of...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-07-15 00:00:00
abstract::The Leukemia and Lymphoma Molecular Profiling Project recently published results from DNA microarray analyses of 240 diffuse large B-cell lymphomas (DLBCLs). Four gene expression "signatures" were identified as correlated with patient outcome, including the major histocompatibility complex (MHC) class II genes (eg, HL...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-07-2365
更新日期:2004-06-01 00:00:00
abstract::Recent data suggest that CD8+ T-cell effector activity is an important component in the control of HIV replication in elite controllers (ECs). One critical element of CD8+ T-cell effector function and differentiation is the T-box transcription factor T-bet. In the present study, we assessed T-bet expression, together ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2010-12-322727
更新日期:2011-04-07 00:00:00
abstract::Productive T-cell immunity requires both the activation and the migration of specific T cells to the antigenic tissue. The costimulatory molecule CD28 plays an essential role in the initiation of T-cell-mediated immunity. We investigated the possibility that CD28 may also regulate migration of primed T cells to target...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2006-10-050724
更新日期:2007-04-01 00:00:00
abstract::Although hepatitis C virus (HCV) mainly affects hepatocytes, infection is widespread and involves immunologically privileged sites. Whether lymphoid cells represent further targets of early HCV infection, or whether other cells in the hematopoietic microenvironment may serve as a potential virus reservoir, is still un...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract::The bone marrow microenvironment contains a heterogeneous population of stromal cells organized into niches that support hematopoietic stem cells (HSCs) and other lineage-committed hematopoietic progenitors. The stem cell niche generates signals that regulate HSC self-renewal, quiescence, and differentiation. Here, we...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood-2015-07-533588
更新日期:2015-11-26 00:00:00
abstract::The beta-globin locus control region (LCR) is a large DNA element that is required for high-level expression of beta-like globin genes from the endogenous mouse locus or in transgenic mice carrying the human beta-globin locus. The LCR encompasses 6 DNaseI hypersensitive sites (HSs) that bind transcription factors. The...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2005-06-2308
更新日期:2006-01-15 00:00:00
abstract::Toll-like receptors orchestrate rapid local protective innate-immune responses to invading pathogens and optimize leukocyte priming of subsequent adaptive responses. Paradoxically, systemic excess of the TLR2 ligand, bacterial lipoprotein (BLP), suppresses peripheral inflammatory responses. Here, we demonstrate that t...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-08-174698
更新日期:2009-04-30 00:00:00
abstract::Agammaglobulinemia is the most profound primary antibody deficiency that can occur due to an early termination of B-cell development. We here investigated 3 novel patients, including the first known adult, from unrelated families with agammaglobulinemia, recurrent infections, and hypertrophic cardiomyopathy (HCM). Two...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2020006441
更新日期:2020-09-09 00:00:00
abstract::Recent studies have shown that soluble factors elaborated by human T lymphocytes enhance erythroid burst formation by human peripheral blood null cells. This study demonstrates that media conditioned by a long-term T lymphocyte line augmented the growth of erythroid colonies in vitro in the presence of erythropoietin ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1980-10-01 00:00:00