Abstract：
:Stem cell factor (SCF) is a growth factor that promotes the survival, proliferation, and differentiation of hematopoietic cells. SCF and its receptor, Kit, are normally present in both cell surface and soluble forms. Both forms of Kit can bind SCF. However, the function of soluble Kit is unknown. In order to determine if soluble Kit can modulate SCF activity, we produced a fusion protein, Kit-Fc, comprised of the extracellular domain of murine Kit and the Fc portion of human IgG(1) and investigated its ability to bind 125I-SCF and to inhibit SCF-stimulated hematopoietic colony growth in vitro. Stable cell lines expressing Kit-Fc were generated and Kit-Fc was purified to greater than 95% purity. Scatchard analysis demonstrated that Kit-Fc binds iodinated SCF with high affinity (Kd 570 pM). Kit-Fc also bound to transmembrane SCF displayed on the surface of fibroblasts. The murine mast cell line IC2 was engineered to express murine Kit on the cell surface and was demonstrated to proliferate in the presence of SCF. Kit-Fc completely blocked SCF-stimulated proliferation of IC2-Kit cells, but not IL-3-stimulated growth of IC2-Kit cells, demonstrating the specificity of Kit-Fc. We investigated the ability of Kit-Fc to block SCF-stimulated murine hematopoietic colony growth. Kit-Fc blocked SCF-stimulated erythroid colony growth as effectively as a neutralizing anti-Kit monoclonal antibody, ACK2, but did not block erythropoietin-stimulated erythroid colony growth. Likewise, Kit-Fc blocked SCF-stimulated myeloid colony growth as effectively as ACK2 antibody, but did not block IL-3- or GM-CSF-stimulated myeloid colony growth. These results indicate that a form of soluble Kit binds SCF with high affinity, and can specifically block the ability of SCF to stimulate hematopoietic colony growth, suggesting that one function of soluble Kit may be to modulate SCF bioactivity.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Dahlen DD,Lin NL,Liu YC,Broudy VCdoi
10.1016/s0145-2126(00)00122-3keywords:
subject
Has Abstractpub_date
2001-05-01 00:00:00pages
413-21issue
5eissn
0145-2126issn
1873-5835pii
S0145212600001223journal_volume
25pub_type
杂志文章abstract：:Many evidences have shown that dietary intake of cruciferous vegetables could protect against the risk of various types of malignancies. Benzyl isothiocyanate (BITC), one of the compounds from cruciferous vegetables, had shown induced cell cycle arrest and apoptosis in cancer cells. However, there is no available info...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.01.030
更新日期：2009-11-01 00:00:00
abstract：:Despite initial remissions, most patients with Ph chromosome positive (Ph(+)) acute leukemia (AL) become refractory to tyrosine kinase inhibitors (TKIs) such as imatinib and dasatinib. This study was designed to determine if targeting the interleukin-3 receptor (IL-3R) with a diphtheria toxin fusion protein (DT(388)IL...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.12.008
更新日期：2010-08-01 00:00:00
abstract：:In order to investigate whether transfer of the cytidine deaminase (CDD) cDNA would increase chemotherapy resistance to cytosine arabinoside (ara-C) we used a retroviral vector expressing both, neomycin phosphotransferase and the CDD cDNA, to transduce hematopoietic cells from cell lines and from murine bone marrow (B...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(99)00128-9
更新日期：1999-11-01 00:00:00
abstract：:We report on our experience relating to 62 patients with myelodysplastic syndrome (MDS) aged less than 50 years, seen at our Institution and conservatively treated from July 1983 to December 2000. Patients demographics and clinical features at diagnosis were analysed for their prognostic value on survival and on risk ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2005.01.003
更新日期：2005-07-01 00:00:00
abstract：PURPOSE:The study aims to develop a prognostic scoring system based on prognostic lncRNAs for acute myeloid leukemia (AML). METHODS:Based on lncRNA expression profiles downloaded from The Cancer Genome Atlas (TCGA), differentially expressed long noncoding RNAs (DELs) between good prognosis and bad prognosis samples we...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2019.106261
更新日期：2020-01-01 00:00:00
abstract：:A primary mitochondrial defect may be pivotal in the pathogenesis of acquired idiopathic sideroblastic anemia (AISA). The mitochondrial respiratory chain is involved in mitochondrial iron uptake and supply of ferrous iron (Fe2+) for heme synthesis. Mitochondrial DNA (mtDNA) comes into play because several subunits of ...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/s0145-2126(99)00160-5
更新日期：2000-02-01 00:00:00
abstract：:We have isolated an M-CSF-like membrane-associated growth factor from human leukemic J6-1 cells that can enhance the growth and colony formation of J6-1 cells in vitro. Indirect evidence suggests that this membrane-associated M-CSF-like growth factor may do so by stimulating a corresponding receptor co-expressed on th...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(97)00135-5
更新日期：1998-01-01 00:00:00
abstract：:Chronic Lymphocytic Leukemia B cells (CLL) are malignant cells which retain at least some functions of normal B cells. Paramount amongst the latter is that when such cells are appropriately stimulated, they are able to present antigens, including any potential tumor antigens, making them excellent choices as a candida...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2018.03.002
更新日期：2018-05-01 00:00:00
abstract：:Migration of eosinophil (Eo) into tissues is a hallmark of chronic eosinophilic leukaemia (CEL), but the exact mechanism involved in cell migration is unknown. We report on a patient with CEL who presented high expressions of VLA-4, LFA-1 and Mac-1 integrins on the Eo surface, increased chemotaxis of Eo to eotaxin, de...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.07.025
更新日期：2007-05-01 00:00:00
abstract：:FLT3 is a receptor tyrosine kinase involved in the survival of hematopoietic stem cells, and mutations of FLT3 have been reported to be of prognostic significance. This is the first study of FLT3 mutations in pediatric non-promyelocytic AML patients that received the same treatment scheme in single institute. FLT3 int...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2004.11.006
更新日期：2005-06-01 00:00:00
abstract：:Peripheral neuropathy (PN), with neuropathic pain as main symptom, represents the dose-limiting toxicity of the proteasome inhibitor bortezomib. Aim of this study was to compare the incidence, risk factors, severity and outcome of PN and neuropathic pain in patient treated with bortezomib up-front or at relapse. We st...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.07.022
更新日期：2010-04-01 00:00:00
abstract：:Internal tandem duplications (ITDs) of the FLT3 gene occur in approximately 20-30% of acute myeloid leukemia (AML) patients. We investigated if FLT3 ITDs could be used as minimal residual disease (MRD) markers for AML patients. Patient-specific polymerase chain reaction (PCR) assays for FLT3 ITDs were developed for fo...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(01)00087-x
更新日期：2001-12-01 00:00:00
abstract：:Radiotherapy (RT)is considered the treatment of choice in patients with Extra-nodal marginal zone lymphoma (EMZL) at early stage, but the presence of late toxicities has been limited the acceptance. Recently, low doses of RT LDR) (2 x 2 Gy) and the use of limited fields has been observed that retain the efficacy but e...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章
doi：10.1016/j.leukres.2020.106443
更新日期：2020-11-01 00:00:00
abstract：:A total of 854 patients with anti-HTLV-I antibody positive ATL, newly diagnosed from 1983 to 1987, were analyzed for prognostic factors. There were 466 males and 388 females with a mean age of 57.1. Of these 269 (31.5%) were alive with a median follow-up time of 14 months from diagnosis, while 585 (65.5%) were dead wi...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(91)90087-a
更新日期：1991-01-01 00:00:00
abstract：:To characterize the molecular mechanisms involved in the transition from the chronic phase to blast crisis in chronic myelogenous leukemia (CML), gene expression profiles of leukemic cells from patients in the chronic and blast crisis phases were analyzed using an 8.7K cDNA chip and real-time PCR. A transient transfec...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.11.008
更新日期：2010-08-01 00:00:00
abstract：:Activating mutations of Fms-like tyrosine kinase 3 (Flt3) are the most common genetic abnormalities found in acute myeloid leukemia (AML) and represent potential therapeutic targets. The novel Flt3 inhibitor KRN383 inhibited the autophosphorylation of Flt3 bearing internal tandem duplications (ITDs) and the Asp835Tyr ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.02.028
更新日期：2006-12-01 00:00:00
abstract：:KN-62, an inhibitor of the calmodulin-dependent protein kinases (CaMKs), enhances the terminal differentiation of retinoic acid sensitive human myeloid leukemia cell lines. In an effort to identify additional CaMK inhibitors that exhibit more potent activity in triggering leukemia cell differentiation, we synthesized ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.07.022
更新日期：2007-05-01 00:00:00
abstract：:In a patient affected with chronic lymphocytic leukemia with lymphocyte surface mu and kappa determinants and vacuolated bone marrow plasma cells, the serum contained polymers of a truncated mu chain and normal-sized kappa chains. These light chains were present as monomers and covalent dimers in studies performed und...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(93)90129-9
更新日期：1993-06-01 00:00:00
abstract：BACKGROUND/AIMS:Multiple myeloma (MM) is caused by proliferation of clonal plasma cells (cPCs) in bone marrow (BM), associated with numerical and functional defects in immune subsets. An impairment of B cell compartment is involved in onset/progression of the disease. METHODS:By flow cytometry, we studied distribution...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2016.08.008
更新日期：2016-10-01 00:00:00
abstract：:Replication of the Friend spleen focus forming virus (SFFV) in C3H/HeJ or C57BL/6J mouse continuous bone marrow cultures is associated with an increased cumulative production of pluripotential/hematopoietic stem cells (CFUs), granulocyte-macrophage progenitor cells (GM-CFUc), and total granulocytes, compared to uninfe...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(83)90133-9
更新日期：1983-01-01 00:00:00
abstract：:Imatinib is a tyrosine kinase inhibitor and is now used regularly in chronic myeloid leukaemia therapy in chronic phase with great success. This drug due its very nature of action is suspected to be teratogenic hence the patients are counseled not to get pregnant while on this drug. However in world literature few nor...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.03.007
更新日期：2008-10-01 00:00:00
abstract：:Imatinib is a highly effective drug for the treatment of chronic myeloid leukemia (CML) that targets the BCR-ABL kinase. However, a number of patients have CML that is resistant to Imatinib treatment. In this report, we developed AGM130 as a potential therapeutic drug for Imatinib-resistant CML treatment. The AGM130 c...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.12.017
更新日期：2013-04-01 00:00:00
abstract：:We evaluated the efficacy of FISH to detect chromosome anomalies in the evaluation of young (<60 years) patients with AML. Patients were enrolled in E1900, an ECOG clinical trial for AML. The protocol was designed to collect bone marrow or blood for both cytogenetic and FISH studies at study entry (diagnosis). FISH fo...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.07.026
更新日期：2007-05-01 00:00:00
abstract：:Human peripheral blood monocytes were found to be capable of phagocytizing human B-non Hodgkin's lymphoma (NHL) cells coated with mouse monoclonal antibodies (MoAbs). The MoAbs used recognized idiotypic determinants on the surface immunoglobulin (Ig) of the tumor cells. MoAbs of IgG1 and IgG2a subclass were equally ef...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(86)90344-9
更新日期：1986-01-01 00:00:00
abstract：:Secondary acute lymphoblastic leukemia (s-ALL) is rare and poorly defined and data regarding outcomes post-transplant are lacking. Here, we report a detailed analysis of s-ALL at our Institution. Among 211 eligible patients with ALL from 2006 to 2017, 30 (14%) were defined as s-ALL and the remaining as primary ALL (p-...
journal_title：Leukemia research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.leukres.2018.07.024
更新日期：2018-09-01 00:00:00
abstract：:Increasing evidence suggest that epigenetic mechanisms (e.g. histone modification by histone deacetylases) play a major role in the pathogenesis of Hodgkin's lymphoma (HL). We treated HL cell lines with the histone deacetylase inhibitor vorinostat and investigated the gene expression profile of these cells by using DN...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.02.021
更新日期：2012-06-01 00:00:00
abstract：:3q26.2/EVI1 rearrangements resulting in EVI1 overexpression play an important role in leukemogenesis and are associated with treatment resistance and a poorer prognosis in patients with acute myeloid leukemia, myelodysplastic syndrome, chronic myeloid leukemia and BCR-ABL negative myeloproliferative neoplasms. In this...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2017.12.004
更新日期：2018-02-01 00:00:00
abstract：:We describe the properties of three monoclonal antibodies (McAbs) (21H73, 37G7 and 49C12) against K562 cell surface antigens correlated with differentiation induced by 12-O-tetradecanoyl phorbol-13-acetate (TPA). Each of the McAbs immunoprecipitated K562 cell surface antigen with molecular weight (MW) of approximately...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(91)90121-9
更新日期：1991-01-01 00:00:00
abstract：:Bone marrow cells from 109 patients (median age 60) with newly diagnosed acute myeloid leukaemia (AML) were prospectively immunophenotyped (IP) and the prognostic value of monoclonal antibody (MAB) reactivities was analysed to detect differences in complete remission rates and survival, not only between groups of MAB ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(91)90071-z
更新日期：1991-01-01 00:00:00
abstract：:Most clinicians caring for patients with AML do not use the word "cure" casually, since for many patients diagnosed with AML, a state of cure or even of long term survival remains elusive. Analysis of prognostic factors may aid in defining the chance for cure in various AML subtypes, and improvements are required at a...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2012.08.006
更新日期：2012-12-01 00:00:00
