Abstract：
:Type IV nuclear bodies are classified as true intranuclear inclusions that ultrastructurally contain numerous densely packed 20- to 30-nm osmiophilic granules surrounded by a microfibrillar cortex. In the present study, we have found statistically significant ultrastructural differences in the frequency and size of type IV nuclear bodies in the in vitro bone marrow fibroblastic cells (FC) derived from eight nonleukemic subjects and 13 patients with acute nonlymphoblastic leukemia (ANLL) and myelodysplastic disorders (MDD). Patients with ANLL, MDD, and myelofibrosis, as a group, had four times as many type IV nuclear bodies as nonleukemic subjects. The mean frequency of type IV nuclear bodies for patients with ANLL and MDD was 2.68% +/- 3.27% as compared with 0.63% +/- 1.06% for the nonleukemic subjects (p less than 0.05). The mean maximum type IV nuclear body area of the ANLL and chronic myelomonocytic leukemia (CMML) patients as a group was 2.08 +/- 1.10 micron2, compared with a mean maximum area of 0.93 +/- 0.10 micron2 from nonleukemic subjects (p less than 0.05). The FC were otherwise morphologically indistinguishable and displayed the typical ultrastructural features of fibroblasts. These findings have provided the first morphologic evidence that supports the concept of an altered bone marrow microenvironment in patients with ANLL and MDD. Since type IV nuclear bodies are found in high frequency in virally infected tissues, our quantitative ultrastructural findings raise the possibility of a local viral infection that affects the bone marrow microenvironment of patients with ANLL and some MDD disorders.
journal_name
Exp Hematoljournal_title
Experimental hematologyauthors
Payne CM,Greenberg B,Cromey D,Woo Lsubject
Has Abstractpub_date
1987-02-01 00:00:00pages
143-53issue
2eissn
0301-472Xissn
1873-2399journal_volume
15pub_type
杂志文章abstract：:Normal and myeloid leukemic spleen cells from RF mice were cultured in vitro in plasma clots. In situ histochemical staining and karyotypic analysis of the colonies formed in the clot revealed that the colonies produced by leukemic and normal progenitors were indistinguishable morphologically and cytochemically. Colon...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1978-02-01 00:00:00
abstract：OBJECTIVE:Excessive apoptosis may have a role in the ineffective hematopoiesis and cytopenias observed in myelodysplastic syndromes. The goals of this study were 1) to quantify apoptosis in patients with "early stage" myelodysplasia [including patients with refractory anemia (RA), RA with ringed sideroblasts (RARS), RA...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(00)00179-x
更新日期：2000-07-01 00:00:00
abstract：OBJECTIVE:Donor lymphocyte transfusions (DLT) are effective in the treatment of leukemia after allogeneic stem cell transplantation. Graft-vs-host-disease (GVHD) is the major risk factor of DLT. In dog leukocyte antigen (DLA)-identical littermate dogs, DLT given within 3 weeks after transplantation of marrow depleted o...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2009.05.001
更新日期：2009-08-01 00:00:00
abstract：:This study is about enrichment of hemopoietic stem cell concentration in mouse bone marrow by use of a glass wool filtration technique. Maximum stem cell concentration was accomplished when filtration conditions were as follows: (1) support medium supplemented to 15% with fresh serum from syngeneic donors; (2) no incu...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Graft-versus-host disease (GVHD), mediated by donor-derived alloreactive T cells, is a major cause of nonrelapse mortality in allogeneic hematopoietic stem cell transplantation. Its therapy is not well-defined. We established allele-specific anti-human leukocyte antigen (HLA) monoclonal antibodies (ASHmAbs) that speci...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2014.10.008
更新日期：2015-02-01 00:00:00
abstract：:Distinctive patterns of chromatin modification control gene expression and define cellular identity during development and cell differentiation. Polycomb repressive complex 2 (PRC2), the sole mammalian enzymatic complex capable of establishing gene-repressive high-degree methylation of histone H3 at lysine 27 (H3K27),...
journal_title：Experimental hematology
pub_type： 杂志文章,评审
doi：10.1016/j.exphem.2015.05.001
更新日期：2015-08-01 00:00:00
abstract：OBJECTIVE:The CD15 (Lewis x) cell surface oligosaccharide moiety is expressed in a variety of normal and tumor cells and recognized by selectins. The detection of CD15 on malignant Hodgkin-Reed-Sternberg (HRS) cells serves as a diagnostic marker of Hodgkin's lymphoma (HL). Retrospective studies suggest that the express...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(03)00237-6
更新日期：2003-11-01 00:00:00
abstract：:A useful cytochemical technique has been developed which facilitates the identification of the types of cell aggregates which proliferate in soft agar cultures of hematopoietic stem cells. Staining of fixed agar discs for alpha-naphthyl acetate esterase (ANAE), naphthol AS-D chloroacetate esterase (CAE) and with Luxol...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1983-01-01 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：:Murine low-density bone marrow cells sorted from the blast cell window on the basis of high rhodamine-123 retention (Rh-bright), are highly enriched in histamine-, IL-4-, and IL-6-producing cells. We established by in situ hybridization that up to 50% of this population (around 0.25% of the whole bone marrow) coexpres...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(99)00039-9
更新日期：1999-06-01 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：:Previous studies have suggested that in vivo granulocyte colony-stimulating factor (G-CSF) pharmacokinetics may change over time. We studied three patients treated with high-dose chemotherapy followed by autologous bone marrow transplantation (ABMT) for metastatic breast cancer after intravenous administration of reco...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1997-12-01 00:00:00
abstract：OBJECTIVE:To study the early time course of engraftment of human mesenchymal stem cells in fetal sheep heart and determine the relative roles of proliferation and homing in formation of aggregates of human Purkinje fiber cells. METHODS:The human sheep xenograft model was utilized for these studies. Prior to injection ...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2006.04.019
更新日期：2006-07-01 00:00:00
abstract：:Rats made transiently neutropenic by intra-arterial administration of vinblastine (3 mg/kg) and infected with E. coli (6.02+/-0.45 X 10(8), per animal) have a mortality rate of 90% within 48 h post infection. Multiple transfusions of large numbers of granulocytes (harvested from Deca-Durabolin treated donor rats) prot...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1977-05-01 00:00:00
abstract：:Adult hematological malignancies, such as acute myeloid leukemia, are thought to arise through the gradual acquisition of oncogenic mutations within long-lived hematopoietic stem cells (HSCs). Genomic analysis of peripheral blood DNA has recently identified leukemia-associated genetic mutations within otherwise health...
journal_title：Experimental hematology
pub_type： 杂志文章,评审
doi：10.1016/j.exphem.2019.08.004
更新日期：2019-09-01 00:00:00
abstract：:High-dose chemotherapy followed by autologous bone marrow transplantation (ABMT) in the treatment of malignancies is often associated with immune deficiency following transplantation, possibly contributing to tumor relapse or fatal infection. Interleukin 2 (IL-2), which enhances major histocompatibility complex (MHC)-...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：:The first blood cells observed in the embryo are large nucleated erythroblasts generated in blood islands of the extraembryonic yolk sac. These unique red cells have been termed primitive because of their resemblance to nucleated erythroblasts of nonmammalian species. It is now widely assumed that hematopoiesis in the...
journal_title：Experimental hematology
pub_type： 杂志文章,评审
doi：10.1016/j.exphem.2005.06.012
更新日期：2005-09-01 00:00:00
abstract：OBJECTIVE:Endothelial progenitor cells (EPCs) are used for angiogenic therapies or as biomarkers to assess cardiovascular disease risk. However, there is no uniform definition of an EPC, which confounds EPC studies. EPCs are widely described as cells that coexpress the cell-surface antigens CD34, AC133, and vascular en...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2007.04.002
更新日期：2007-07-01 00:00:00
abstract：:In this report, the effects of adenosine on the promyelocytic cell line HL-60 and on T-lymphocytic clones are compared. According to previous reports, adenosine induces a dose-dependent inhibition of DNA synthesis in T-lymphocytes. Conversely, adenosine dose-dependently enhances DNA synthesis in HL-60 cells, as docume...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：:Radiation therapy is used as total body treatment in preparation of the acute myelogenous leukemia (AML) patient for bone marrow transplantation. Many AML patients will have residual leukemia cells at the time of total body irradiation (TBI). In the present study, the effect of TBI on leukemic myeloid cells was compar...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:Studies were undertaken to produce monoclonal antibodies directed against the murine receptor for macrophage colony-stimulating factor (M-CSF or CSF-1). Sprague-Dawley rats were injected with lysates prepared from a murine myelomonocytic cell line (RAW cell line) that has high levels of M-CSF receptors. Spleen cells f...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:Serum albumin has long been an essential supplement for ex vivo hematopoietic and immune cell cultures. However, serum albumin medium supplements represent a major source of biological contamination in cell cultures and often cause loss of cellular function. As serum albumin exhibits significant batch-to-batch variabi...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2019.11.007
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVE:We have previously shown that Flt3 ligand (FL)/Flt3 signaling regulates hematopoietic cell migration by modulating the SDF1alpha/CXCR4 signaling pathway. Herein, we evaluated whether a functional interaction between SDF1alpha/CXCR4 signaling and internal tandem duplication (ITD) of Flt3 regulates aberrant hem...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2006.04.001
更新日期：2006-08-01 00:00:00
abstract：:Mice deprived of water for three days showed hemoconcentration due to a reduced plasma volume, suppressed erythropoiesis and reduced food intake. All three classes of erythroid progenitor cells in both the bone marrow and spleen of dehydrated mice were markedly suppressed but recovered rapidly upon rehydration. In add...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1980-05-01 00:00:00
abstract：:Twenty-five dogs with malignant lymphoma (L) and 18 dogs with solid, nonhematologic tumors (ST) were treated with 1200 R total body irradiation (TBI). Rescue from the otherwise lethal hemopoietic toxicity by infusion of autologous marrow aspirated before TBI was attempted, and survival, response to TBI, and immune rea...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1975-04-01 00:00:00
abstract：OBJECTIVE:Our previous studies have demonstrated differentially expressed genetic signature patterns in adult peripheral blood (APB) monocytes (Mos) vs cord blood (CB) Mos. MATERIALS AND METHODS:In this study, we examined the differential gene expression profiles of APB vs CB immature dendritic cells (iDCs) and mature...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2009.07.010
更新日期：2009-10-01 00:00:00
abstract：OBJECTIVE:Potent immunosuppressants, such as rapamycin, FK506, and ascomycin, are known to regulate the phosphorylation of proteins. The purpose of this study was to investigate the effects of these immunosuppressants on differentiation of several human myeloid leukemic cell lines. MATERIALS AND METHODS:Human myeloid ...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/s0301-472x(01)00626-9
更新日期：2001-05-01 00:00:00
abstract：:Somatic mutations of calreticulin (CALR) have been observed in many cases of essential thrombocythemia (ET) or primary myelofibrosis that harbor non-mutated Janus kinase 2 (JAK2). CALR mainly localizes within the endoplasmic reticulum lumen, but a small fraction of the total CALR pool is distributed over the cell surf...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2016.05.001
更新日期：2016-09-01 00:00:00
abstract：:Protein kinase activities are involved in cellular proliferation and differentiation, and inhibitors of these activities are useful for studying the mechanisms of induction of differentiation. We found that staurosporine, an inhibitor of protein kinase activities, induced morphological differentiation of human myelobl...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：OBJECTIVE:The Hedgehog family of intercellular proteins has a crucial role in embryonic development. Recent experimental data suggests that the Hedgehog pathway may play a role in early hematopoiesis and angiogenesis. Stem cell leukemia (SCL), a basic helix-loop-helix (bHLH) transcription factor, is essential for the s...
journal_title：Experimental hematology
pub_type： 杂志文章
doi：10.1016/j.exphem.2006.07.019
更新日期：2006-12-01 00:00:00
