Abstract:
:Polycomb-group genes (PcG), identified by Drosophila genetics, are believed to maintain positional information by constituting a cellular memory system. Recently this system has been proved to be supported by epigenetic transcription regulation. PcG products comprise two distinct complexes, PcG complex 1 and 2. First PcG complex 2 silences chromatin and encodes a histone code by methylating histone H3 at lysine 27. PcG complex 1 is, then, recruited by recognizing the histone code, and ubiquitinates histone H2A and/or inhibits chromatin remodeling to maintain the silenced states of the locus. Biologically, PcG-deficient mice provided biological evidence that PcG are essential for sustaining stem cell activity. More recently PcG were reported to be correlated with cancer progression and prognosis as well as with cancer stem cell activity. PcG may thus play a crucial part in sustaining the activities of malignant as well as normal stem cells. Although PcG were initially seen to maintain stem cell activity through repression of the INK4a locus, they now appear to perform more diverse functions in supporting stem cells. This paper summarizes current information on the molecular roles of PcG in normal and malignant stem cells and discusses the implications in future cancer therapy and regenerative medicine.
journal_name
Int J Hematoljournal_title
International journal of hematologyauthors
Takihara Ydoi
10.1007/s12185-007-0006-ysubject
Has Abstractpub_date
2008-01-01 00:00:00pages
25-34issue
1eissn
0925-5710issn
1865-3774journal_volume
87pub_type
杂志文章abstract::To prevent thromboembolic events associated with heparin-induced thrombocytopenia (HIT), patients usually are treated with argatroban, lepirudin, and bivalirudin. Here, we conducted a meta-analysis of studies to comparing the treatment of HIT with the following direct thrombin inhibitor: argatroban versus lepirudin an...
journal_title:International journal of hematology
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s12185-017-2271-8
更新日期:2017-10-01 00:00:00
abstract::Human cytomegalovirus (HCMV) infection is usually implicated in thrombocytopenia occurring in newborns and immunocompromised patients. However, the underlying mechanisms remain elusive. This study was conducted to investigate the effects of HCMV infection on the viability of megakaryocytic CHRF-288-11 cells and the un...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-010-0560-6
更新日期:2010-05-01 00:00:00
abstract::A humanized anti-CC chemokine receptor 4 (CCR4) monoclonal antibody, mogamulizumab (MOG), has been shown to be safe and effective in the treatment of relapsed/refractory adult T-cell leukemia/lymphoma (ATLL). MOG depletes ATLL cells as well as regulatory T cells (Tregs), as CCR4 is expressed on these cells as well. In...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-016-2087-y
更新日期:2016-12-01 00:00:00
abstract::There is an ongoing search for potential biomarkers for acute myeloid leukemia (AML) patients using metabolic analysis. However, only few studies to date have focused on bone marrow samples or a specific subtype of AML. In the present study, we used gas chromatography time-of-flight mass spectrometry of plasma and bon...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-020-02836-7
更新日期:2020-06-01 00:00:00
abstract::Elderly/comorbid patients with chronic lymphocytic leukemia (CLL) require low-toxicity treatments. Internationally, the standard treatment for such patients is chlorambucil and an anti-CD20 therapy; however, chlorambucil is not approved in Japan. The aim of the present study was to evaluate the safety, efficacy and ph...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-017-2233-1
更新日期:2017-08-01 00:00:00
abstract::Granulocyte (neutrophil) antibodies can cause autoimmune neutropenia, drug-induced neutropenia, immune neutropenia after bone marrow transplantation, neonatal immune neutropenia, refractoriness to granulocyte transfusions as well as febrile and pulmonary transfusion reactions. In the last decade, considerable progress...
journal_title:International journal of hematology
pub_type: 杂志文章,评审
doi:10.1007/BF03165292
更新日期:2002-08-01 00:00:00
abstract::Intravenous immunoglobulin (IVIG) therapy has been used for autoimmune diseases and disorders involving autoantibodies, including coagulation inhibitors. In this review, we have evaluated the efficacy and safety of IVIG therapy for acquired coagulation inhibitors, including factor VIII inhibitor, and for acquired von ...
journal_title:International journal of hematology
pub_type: 杂志文章,评审
doi:10.1532/IJH97.06222
更新日期:2007-05-01 00:00:00
abstract::We report a case of successful umbilical cord blood transplantation (CBT) for Epstein-Barr virus (EBV)-associated lymphoproliferative disease (LPD) in a 6-year-old girl. The patient had hemophagocytic syndrome with excessive circulating levels of EBV DNA that was refractory to immunochemotherapy. Multiple hepatospleni...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1532/ijh97.04081
更新日期:2004-12-01 00:00:00
abstract::We statistically analyzed the hematologic findings of patients with refractory anemia (RA) to identify parameters associated with a poor prognosis. We first separated the RA patients into two groups: one group with disease progression and one without. The patients with disease progression were predominantly male and h...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract::We describe two episodes of CMV retinitis in a pediatric patient who underwent a CD34+ selected graft from his haploidentical father. Both recipient and donor were cytomegalovirus (CMV) seropositive. Both episodes occurred late post-grafting during a phase of complete immunological recovery with sufficient numbers of ...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-008-0126-z
更新日期:2008-09-01 00:00:00
abstract::Perioperative hemostatic management is a challenge in patients with Glanzmann thrombasthenia (GT). The standard means of preventing surgical bleeding in GT patients is platelet transfusion. However, GT patients often possess alloantibodies against GPIIb/IIIa and/or HLA, which cause resistance to platelet transfusion. ...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-016-2096-x
更新日期:2017-02-01 00:00:00
abstract::Mast cell sarcoma is a rare disease characterized by localized, but destructive and rapid, growth of the tumor, high risk of distant metastasis, possibility of a leukemic phase, and poor prognosis. We report successful treatment of uterine mast cell sarcoma with imatinib in a 39-year-old woman who presented with abdom...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-011-0952-2
更新日期:2011-11-01 00:00:00
abstract::The occurrence of chronic myeloid leukaemia (CML) in patients infected with the human immunodeficiency virus (HIV) has rarely been reported in the literature. In this report, we describe the experience of a single centre in the management of 10 such patients, including demographic information, disease characteristics ...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-012-1073-2
更新日期:2012-05-01 00:00:00
abstract::Cytomegalovirus (CMV) infection/reactivation is a serious complication after hematopoietic cell transplantation (HCT). The DNA vaccine ASP0113 contains two plasmids encoding CMV antigens (glycoprotein B and tegument phosphoprotein 65) that stimulate humoral and cellular immunity. Between June 2013 and February 2014, A...
journal_title:International journal of hematology
pub_type: 杂志文章,多中心研究
doi:10.1007/s12185-016-2110-3
更新日期:2017-02-01 00:00:00
abstract::Immature-type CD56(+) natural killer (NK)-cell neoplasms are classified as either myeloid/NK-cell precursor acute leukemia or blastic NK-cell lymphoma. We identified two cases of immature-type CD56(+) NK-cell neoplasms that were not categorizable as either of these entities. The first case involved a 74-year-old woman...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-008-0233-x
更新日期:2009-03-01 00:00:00
abstract::A 32-year-old male patient with severe factor VIII (FVIII) deficiency had developed a high-titer FVIII inhibitor at age 13. Recurrent hemarthroses caused bony destruction in both knees, significantly impairing his ability to walk. Knee examination revealed 20 degrees of varus, destruction of the medial joint line, and...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/BF02981987
更新日期:2002-01-01 00:00:00
abstract::Lymphomas are a heterogeneous group of disease entities with well-defined clinical, morphological, immunophenotypic, and cytogenetic characteristics. Moreover, regional and racial differences have been reported in their incidence and subtype compositions. Here, we reviewed the epidemiology of lymphomas and summarized ...
journal_title:International journal of hematology
pub_type: 杂志文章,评审
doi:10.1007/s12185-018-2403-9
更新日期:2018-04-01 00:00:00
abstract::Aberrant methylation in promoter-associated CpG islands has been recognized as a major mechanism for tumor suppressor gene silencing in several malignancies. We determined the methylation status of nine tumor suppressor genes in 68 newly diagnosed MM patients by methylation-specific PCR. The frequency of promoter hype...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-009-0459-2
更新日期:2010-01-01 00:00:00
abstract::Neurological complications in thrombotic thrombocytopenic purpura (TTP) are associated with poor prognosis and/or permanent damage. We report a young woman in whom the diagnosis of TTP was difficult because cardinal manifestations were absent at presentation. The patient relapsed, showing severe and dramatic neurologi...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:
更新日期:2000-02-01 00:00:00
abstract::To examine the effects and optimal dose of danazol on idiopathic thrombocytopenic purpura (ITP), we administered a low-medium dose to 14 patients with this disease. A low-medium dose of danazol was effective in maintaining the platelet count at a high level, even after the dose of prednisolone was reduced. A low-mediu...
journal_title:International journal of hematology
pub_type: 临床试验,杂志文章
doi:
更新日期:1992-06-01 00:00:00
abstract::Extranodal natural killer/T cell lymphoma, nasal type (ENK/TCL), is an aggressive and rare hematological malignancy. Patients with advanced and relapsed/refractory disease have very poor outcomes. In this study, we retrospectively assessed the efficacy and safety of MEDA regimen (methotrexate, etoposide, dexamethasone...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-015-1809-x
更新日期:2015-08-01 00:00:00
abstract::The phenotypic distributions of observed numbers of ABO blood groups in a Kuwaiti sample population of 18,558 subjects are 4962 (26.7%) with A, 4,462 (24.1%) with B, 858 (4.6%) with AB, and 8,276 (44.6%) with 0. The calculated gene frequencies are 0.6678 for ABO*O, 0.1768 for ABO*A, and 0.1554 for ABO*B. Molecular gen...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/BF02982019
更新日期:2002-02-01 00:00:00
abstract::Imatinib mesylate and rituximab are molecularly targeted drugs against the BCR-ABL fusion protein and the CD20 antigen, respectively. Although these drugs have excellent anticancer effects, a major concern is drug resistance. We have investigated the case of a patient with Philadelphia chromosome-positive and CD20+ ac...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1532/ijh97.04033
更新日期:2004-07-01 00:00:00
abstract::We recently developed an Invader assay combined with reverse transcriptase polymerase-chain-reaction in order to quantify T315I bcr-abl transcripts. Using this assay, we serially monitored T315I bcr-abl transcripts in chronic myeloid leukemia (CML) patients whose bcr-abl transcripts were still detectable at 6 months a...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-009-0290-9
更新日期:2009-05-01 00:00:00
abstract::Primary cutaneous anaplastic large cell lymphoma (PCALCL) is defined as anaplastic large cell lymphoma localized to the skin without extracutaneous involvement at the time of diagnosis. Histologically, PCALCL is characterized by a dense nodular infiltrate of large lymphocytes, extending into the deep dermis or subcuti...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-012-1062-5
更新日期:2012-06-01 00:00:00
abstract::We present the case of a 62-year-old Japanese woman with relapsed adult T-cell leukemia/lymphoma (ATLL) who was treated with humanized anti-CCR4 monoclonal antibody (KW-0761). Although this antibody was highly effective against refractory ATLL, 6 months after the final KW-0761 infusion, the patient complained of hypox...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-013-1278-z
更新日期:2013-03-01 00:00:00
abstract::We performed a retrospective population-based cohort study of acute myeloid leukemia (AML) in Miyazaki Prefecture, Japan. Over 6 years, we diagnosed 221 patients (211 adults and 10 children) with AML, indicating an incidence of AML in Miyazaki Prefecture of 3.2 per 100,000 per year. In 193 adult patients with non-acut...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1007/s12185-012-1146-2
更新日期:2012-09-01 00:00:00
abstract::The current cure rate of childhood acute lymphoblastic leukemia has reached 80% in many industrialized countries, but in developing countries the rate is often less than 10%. To advance the cure rate, investigators have formed several parallel initiatives in both industrialized and developing countries through interna...
journal_title:International journal of hematology
pub_type: 杂志文章,评审
doi:10.1007/BF02983810
更新日期:2003-12-01 00:00:00
abstract::We describe a patient with Philadelphia chromosome (Ph)-positive chronic myelogenous leukemia (CML) who developed an extramedullary blast crisis in the central nervous system (CNS) and then a subcutaneous tumor of the neck during treatment with imatinib mesylate. Administered 400 mg of imatinib mesylate after the diag...
journal_title:International journal of hematology
pub_type: 杂志文章
doi:10.1532/IJH97.04188
更新日期:2005-05-01 00:00:00
abstract::Stem cell transplantations were performed in 69 children at Siriraj Hospital over a ten year period. The source of stem cells was bone marrow (60), peripheral blood (3), or cord blood (6). The diseases treated included 35 thalassemias, 11 Burkitt's lymphoma, five non-Hodgkin's lymphoma, five aplastic anemia, eight acu...
journal_title:International journal of hematology
pub_type: 临床试验,杂志文章
doi:10.1016/s0925-5710(98)00083-8
更新日期:1998-12-01 00:00:00