Abstract：
:The effects of the inhibition of the cyclooxygenase and lipoxygenase metabolic pathways of arachidonic acid on the postirradiation recovery of hematopoietic functions in mice were investigated. Nordihydroguaiaretic acid (NDGA), an inhibitor of prostaglandin (PG) and leukotriene (LT) production, was given to animals in single doses (0.015 to 0.75 mg/mouse) 1 hour before 5 Gy of total-body gamma-irradiation. Enhanced hematopoietic recovery in terms of exogenous and endogenous spleen colonies, femoral granulocyte-macrophage colony-forming cells and peripheral blood granulocyte levels was observed at higher doses of NDGA. The treatment used influenced neither lymphocyte nor erythrocyte postirradiational levels or hemoglobin concentration. A comparison of the effects induced by a high dose of NDGA (0.3 mg per mouse) with those observed after an isomolar dose of indomethacin (an inhibitor of PG production) indicated only slight differences between these two drugs. An isomolar dose of esculetin (an inhibitor of LT production) had no effect on the postirradiation behavior of hematopoiesis. The results suggest that the inhibition of PG production plays the main role in the mechanism of NDGA action. Inhibition of LT production seems to be of less importance for hematopoiesis in these in vivo conditions.
journal_name
Exp Hematoljournal_title
Experimental hematologyauthors
Kozubík A,Hofmanová J,Holá J,Netíková Jsubject
Has Abstractpub_date
1993-01-01 00:00:00pages
138-42issue
1eissn
0301-472Xissn
1873-2399journal_volume
21pub_type
杂志文章abstract：:To clarify the effects of androgen on hemopoiesis in mice, we investigated changes in hemopoietic stem cells at various stages of differentiation after injection of 19-nandrolone decanoate (19-ND). 19-ND induced (a) a marked increase in the population of CFUe, especially in the spleen, and (b) a less significant incre...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1985-08-01 00:00:00
abstract：OBJECTIVE:The OP9-DL1 culture system is an in vitro model for T-cell development in which activation of the Notch pathway by Delta-like 1 promotes differentiation of mature T cells from progenitors. The roles of specific cytokines in this culture system have not been well defined, and controversy regarding the role of ...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2006.08.001
更新日期：2006-12-01 00:00:00
abstract：:Haploinsufficiency of erythroid Krüppel-like factor (EKLF/KLF1) has been shown recently to ameliorate the clinical severity of β-thalassemia by increased expression levels of fetal hemoglobin (HbF). The underlying mechanisms for role of EKLF in regulating HbF are of great interest but remain incompletely understood. I...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2018.03.004
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVE:Nonmyeloablative conditioning regimens for marrow transplantation are desirable in many settings. Because repeated doses of the antimetabolite 5-fluorouracil (5-FU) decreases marrow long-term repopulating ability (LTRA) upon transplantation into lethally irradiated hosts, we hypothesized that mice given seque...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2004.08.007
更新日期：2004-12-01 00:00:00
abstract：:Lymphatic leukemia L1210-bearing semisyngeneic Balb/c x DBA/2Wf F1 (CD2F1) mice were subjected to chemoradiotherapy (2 x 100 mg/kg of cyclophosphamide i.p. and 1000 cGy of total body irradiation) and reconstitution with 10(7) syngeneic bone marrow cells i.v. The bone marrow obtained from leukemic mice was previously e...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1988-10-01 00:00:00
abstract：:The effect of recombinant interleukin 3 (IL-3) on the function of murine resident peritoneal macrophages was investigated. IL-3 enhanced the phagocytosis of Candida pseudotropicalis and Candida albicans and enhanced killing of the former. The enhanced killing is inhibited by scavengers of oxygen radicals, suggesting t...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1989-09-01 00:00:00
abstract：OBJECTIVE:Several transcription factors determine the cell fate decision between granulocytes and monocytes, but the upstream signal transduction pathways that govern myelopoiesis are largely unknown. Based on our observation of aberrant myeloid cell representation in hematopoietic tissues of 12/15-lipoxygenase (12/15-...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2010.07.004
更新日期：2010-11-01 00:00:00
abstract：:Cancer stem cells (CSCs), including leukemia stem cells (LSCs), exhibit self-renewal capacity and differentiation potential and have the capacity to maintain or renew and propagate a tumor/leukemia. The initial isolation of CSCs/LSCs was in adult myelogenous leukemia, although more recently, the existence of CSCs in a...
journal_title：Experimental hematology
pub_type： 杂志文章,评审
doi：10.1016/j.exphem.2017.04.010
更新日期：2017-08-01 00:00:00
abstract：OBJECTIVE:Recruitment of endothelial progenitor cells to the sites of ischemia has recently been suggested as a mechanism of tissue repair. Here we address the hypothesis that the hypoxia-inducible full-length endothelial-monocyte-activating polypeptide II (EMAP II) provides a mechanism to recruit late outgrowth highly...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2006.05.021
更新日期：2006-08-01 00:00:00
abstract：:The anemia of Belgrade b/b rats has been shown to be due to intracellular iron deficiency. The aim of this study of erythropoiesis at the progenitor cell level in these rats was to determine if a defect is present in the early phase of red cell production. Both erythroid colony-forming unit (CFU-E)- and erythroid burs...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1989-08-01 00:00:00
abstract：:The human cell line CMK spontaneously expresses megakaryocytic characteristics and can be induced to differentiate into mature megakaryocytes after exposure to 12-O-tetradecanoylphorbol-13-acetate (TPA). In comparison with CMK, we have examined the characteristics of a subclone, designated as CMK11-5, that is morpholo...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：OBJECTIVE:To investigate the interaction of imatinib mesylate (IM) with the clinically relevant adenosine triphosphate-binding cassette efflux transporter MDR1 (ABCB1) in cells from patients with chronic myeloid leukemia (CML) and to explore whether inhibition of this transporter would improve IM's efficacy in the elim...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2009.02.006
更新日期：2009-06-01 00:00:00
abstract：:The high affinity Fc gamma receptor, Fc gamma RI, is unique among the three classes of macrophage Fc gamma receptors not only in its affinity for IgG, but also in the structure of its cytoplasmic domain. Fc gamma RIIA and the gamma subunit of Fc gamma RIIIA have tyrosine-containing motifs within their cytoplasmic doma...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：:The results and complications of 224 marrow collections from 200 patients with malignant disease who underwent marrow aspiration and storage for subsequent autologous marrow transplantation (AMT) were analyzed. The median age of the patients was 35 years (range 1-68); 131 patients had hematologic malignancies and 69 h...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1985-10-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate the occurrence of T-cell spontaneous apoptosis (A(spont)) and its modulation in vitro by the interleukin-2 receptor (IL-2R) gamma-chain (gammac)-signaling cytokine IL-15 in patients transplanted with autologous peripheral blood progenitor cells (PBPC) for hematologic mali...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(01)00747-0
更新日期：2001-12-01 00:00:00
abstract：:The circadian and circannual rhythms of committed stem cells (CFUc) were investigated by using the agar colony technique. There was a marked circadian rhythmicity, with variations between maximum and minimum colony yields of 2-5.5 times; such variations could also be seen throughout the year. A phase shift was observe...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:We have developed a prospective approach to identify the generation of erythroid cells derived from cultured peripheral blood mononuclear cells (PBMC) by monitoring the expression of the cell surface protein CD48. Unpurified populations of PBMC obtained from the buffy coats of normal volunteers were grown in suspensio...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(98)00086-1
更新日期：1999-04-01 00:00:00
abstract：:Chronic mountain sickness (CMS) results from chronic hypoxia. It is unclear why certain highlanders develop CMS. We hypothesized that modest increases in fetal hemoglobin (HbF) are associated with lower CMS severity. In this cross-sectional study, we found that HbF levels were normal (median = 0.4%) in all 153 adult A...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2016.02.010
更新日期：2016-06-01 00:00:00
abstract：:CD34 is a cell-surface glycoprotein expressed in a developmental, stage-specific manner by bone marrow stem and progenitor cells. In this study we explored a possible role for c-Myb in CD34 regulation during developmental hematopoiesis. The results indicate that c-Myb can induce CD34 expression in hematopoietic and no...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:Use of a trifunctional bispecific antibody (trAb) given concomitantly with allogeneic cell therapy to achieve an anti tumor effect without graft-vs-host disease (GVHD). MATERIALS AND METHODS:A trAb-directed against murine CD3 and human epithelial cell adhesion molecule (EpCAM) (BiLu), was given alone or conc...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2008.03.005
更新日期：2008-08-01 00:00:00
abstract：:Nasal natural killer-T cell lymphoma (NNKTL) is associated with the Epstein-Barr virus and has distinct histologic features, such as angiocentric and polymorphous lymphoreticular infiltrates that contain too many cell types, including tumor and inflammatory cells. We have shown previously that intercellular adhesion m...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2013.03.009
更新日期：2013-08-01 00:00:00
abstract：:Although macrophages account for 70-90% of the adherent cells in mouse long-term bone marrow cultures (LTBMC) and CFU-F colonies, the predominant nonhematopoietic stromal cell is endothelial-like (EL), expressing cytoplasmic collagen IV, laminin, and an antigen recognized by the monoclonal antibody MECA-10. We report ...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：:Telomeres cap chromosomal ends and are shortened throughout a lifetime. Additional telomere erosion has been documented during conventional chemotherapy or hematopoietic stem cell transplantation. Previous studies of stem cell transplantation reported variable amounts of telomere shortening with inconsistent results r...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2007.08.028
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVES:To characterize and evaluate the validity of a novel coculture system for studying human B-lymphocyte developmental biology. MATERIALS AND METHODS:We developed a long-term culture system to produce B lymphocytes from human CD34(+) cells purified from umbilical cord blood using human mesenchymal stem cells (...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2007.12.013
更新日期：2008-05-01 00:00:00
abstract：:We have studied the in vivo spleen colony-forming ability and marrow repopulating ability of murine bone marrow cells differing in mitochondrial activity. Following centrifugal elutriation the cells were sorted on the basis of rhodamine-123 fluorescence intensity within a predetermined light scatter window. It is show...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：:Neutropenia is common to both Hermansky-Pudlak syndrome type 2 and canine cyclic hematopoiesis (CH) which are caused by mutations in the AP3B1 gene. The purpose of this study was to determine if pearl mice were neutropenic. Complete blood counts (CBCs) and bone marrow differential counts, colony forming unit (CFU) ass...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2013.05.002
更新日期：2013-10-01 00:00:00
abstract：:Human bone marrow contains plastic-adherent hemopoietic progenitor cells whose plating efficiency is increased by brief (2 h) exposure to methylprednisolone (MP). When subsequently covered with methylcellulose medium, they form colonies of monoblastoid cells. Colony size, but not number, and mature cell production are...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：OBJECTIVE:B-cell chronic lymphocytic leukemia is a heterogeneous disease with a pronounced variation in the clinical course. With the purpose of identifying genes that could be related to disease progression, we have performed gene expression profiling on B-CLL patients with an indolent disease and patients with a prog...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2005.05.007
更新日期：2005-08-01 00:00:00
abstract：:A novel polypeptide with a molecular weight of 17 kd (17k protein) was identified in bone marrow cell cultures. The synthesis of 17k protein is elevated in cell cultures maintained under Dexter conditions, which support myelopoiesis. The predominance of macrophages in the stromal layer of these cultures and the observ...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:Allogeneic bone marrow recipients exhibit a complex and multifactorial immunodeficiency affecting numerous effector functions for various periods of time. In order to evaluate their Fc-mediated monocyte-macrophage (MM) function we studied the clearance of IgG-coated Rh-positive erythrocytes (EA) in healthy control sub...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1989-10-01 00:00:00
