Abstract：
:5-Aza-2'-deoxycytidine (decitabine; Dacogen, MGI Pharma, Inc, Bloomington, MN) is a cytidine analog that inhibits DNA methyltransferases resulting in loss of DNA methylation with subsequent gene re-expression. This compound was first synthesized over 40 years ago and since that time much information has been learned regarding its mechanism of action. It took nearly 20 years before the dual mechanism of action was elucidated. At high doses decitabine is cytotoxic, while lower doses are associated with demethylating activity. This information sparked further clinical trials using a lower dosing schedule since the original studies using higher doses were associated with significant myelosuppression and induction toxicity. Current trials using lower dosing schedules, particularly in patients with hematologic malignancies, have shown significant promise for the future use of demethylating agents. Sequential and/or randomized phase I/II studies have suggested that decitabine is most active when administered at relatively low doses given via a short infusion. The drug is less active and more toxic when administered via continuous infusion, and increasing dose-intensity resulted in a higher response rate, suggesting a relationship between peak drug levels and response. Even with all the information we have learned, there is still a need to determine the optimal dosing schedule and the development of alternative dosing forms.
journal_name
Semin Hematoljournal_title
Seminars in hematologyauthors
Kantarjian HM,Issa JPdoi
10.1053/j.seminhematol.2005.05.006subject
Has Abstractpub_date
2005-07-01 00:00:00pages
S17-22issue
3 Suppl 2eissn
0037-1963issn
1532-8686pii
S0037196305000661journal_volume
42pub_type
杂志文章,评审abstract：:Advances in recombinant DNA manufacturing technology have now made possible the production of a highly purified and active recombinant factor IX (rFIX) product. Recombinant factor IX was developed by (1) stable insertion of the genes for both factor IX and PACE-SOL (a truncated, soluble serine protease needed to enhan...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1998-04-01 00:00:00
abstract：:Thrombus forms on catheters and other indwelling synthetic materials. Systemic heparin infusion decreases, but does not eliminate thrombus formation. The day is approaching when systemic heparinization may no longer be indicated to suppress catheter thrombogenesis. Passivation of catheters by heparin immobilization is...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1991-10-01 00:00:00
abstract：:A multicenter clinical trial of the thrombin inhibitor argatroban (Novastan; Texas Biotechnology, Houston, TX; Smith-Kline Beecham Pharmaceuticals, Philadelphia, PA) was recently conducted in patients with heparin-induced thrombocytopenia (HIT) and HIT that had progressed to thrombosis (HITTS). In patients defined by ...
journal_title：Seminars in hematology
pub_type： 临床试验,杂志文章,多中心研究
doi：
更新日期：1999-01-01 00:00:00
abstract：:In previous studies, treatment with epoetin alfa facilitated preoperative donation of autologous blood (AB). However, some patients may not be able to donate sufficient AB to meet their surgical blood requirements when the time to surgery is short. In this multicenter, double-blind, placebo-controlled study, the abili...
journal_title：Seminars in hematology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：
更新日期：1996-04-01 00:00:00
abstract：:Myeloproliferative neoplasms (MPN) include polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). MPN are characterized by clonal proliferation of myeloid progenitors leading to erythrocytosis, thrombocytosis, or leukocytosis, and risk of hemorrhagic and thrombotic events, as well as ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2018.04.005
更新日期：2018-10-01 00:00:00
abstract：:Idiopathic myelofibrosis (IMF) is a clonal stem cell disorder and is one of the four major myeloproliferative disorders, which include essential thrombocythemia (ET), polycythemia vera (PV), and chronic myelogenous leukemia (CML). Patients may be asymptomatic at the early stages, but later progress to marrow fibrosis,...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2004.02.009
更新日期：2004-04-01 00:00:00
abstract：:Cytogenetic data suggest that acute myeloid leukemia (AML) develops through a process of branching evolution, especially during relapse and progression. Recent genomic data from AML cases using digital sequencing, temporal comparisons, xenograft cloning, and single-cell analysis indicate that most, if not all, AML cas...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：10.1053/j.seminhematol.2014.08.004
更新日期：2014-10-01 00:00:00
abstract：:Serum vitamin B12 levels are often low in human immunodeficiency virus (HIV)-infected patients. However, only a few patients appear to have actual vitamin B12 deficiency. A low red cell folate level accompanying the low vitamin B12 level makes the presence of vitamin B12 deficiency more likely. Our experience suggests...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1999-01-01 00:00:00
abstract：:Smoldering myeloma (SMM) is a precursor state of multiple myeloma. It is defined by an M-protein concentration ≥3 g/dL and/or ≥10% clonal bone marrow plasma cells, in the absence of end-organ damage. Based on clinical observations, the natural history of SMM varies greatly, from stable, monoclonal gammopathy of undete...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.11.009
更新日期：2011-01-01 00:00:00
abstract：:A number of human disorders, dubbed ribosomopathies, are linked to impaired ribosome biogenesis or function. These include but are not limited to Diamond Blackfan anemia (DBA), Shwachman Diamond syndrome (SDS), and the 5q- myelodysplastic syndrome (MDS). This review focuses on the latter two non-DBA disorders of ribos...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2011.01.002
更新日期：2011-04-01 00:00:00
abstract：:Thrombocytopenia is one of the most common reasons for inpatient hematology consultations. The main challenges in the management of hospitalized patients with thrombocytopenia are to identify the underlying cause and to recognize when urgent interventions are required. Examination of the blood film is essential in the...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2011.08.002
更新日期：2011-10-01 00:00:00
abstract：:Recombinant activated factor VII (rFVIIa) is being increasingly used to treat bleeding associated with a variety of non-hemophilic coagulopathic indications, and its mechanism of action in these areas is under active investigation. Numerous studies have shown that FVIIa binds with low affinity to activated platelets; ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2008.03.013
更新日期：2008-04-01 00:00:00
abstract：:The presence or absence of minimal residual disease (MRD) in patients with multiple myeloma (MM) has emerged as a useful marker to determine the depth of remission. MRD negativity as an endpoint has been shown to be associated with improved progression-free survival in many studies. MRD detection is therefore part of ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2018.02.010
更新日期：2018-01-01 00:00:00
abstract：:Psoralens plus ultraviolet A (UVA) light inactivate viruses and bacteria as well as leukocytes. A system employing the synthetic psoralen compound amotosalen hydrochloride (S-59), in combination with UVA light, is being developed to decontaminate platelet concentrates and plasma in a blood-bank setting. S-59 is a hete...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(01)90118-0
更新日期：2001-10-01 00:00:00
abstract：:The rationale for modulation of multidrug resistance (MDR) by inhibitors of the multidrug transporter, P-glycoprotein (P-gp) includes the following: (1) P-gp is expressed by human cancers, either at diagnosis or after failure of chemotherapy; (2) P-gp expression at diagnosis has been associated with a poor prognosis i...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1997-10-01 00:00:00
abstract：:Bendamustine is a bifunctional mechlorethamine derivative that shares similarities to other alkylators; however, the presence of a benzimidazole ring may confer "nucleoside-like" properties and may allow the stabilization of the molecule leading to longer lasting DNA damage. Though bendamustine has demonstrated promis...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2011.03.005
更新日期：2011-04-01 00:00:00
abstract：:The purpose of this study was to assess the efficacy and side effect profile of the repeated use of anti-D for the treatment of pediatric immune thrombocytopenia (ITP) in a large pediatric hematology center. We performed a retrospective analysis of patient records for children (aged 4 months-18 years) treated for ITP ...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：10.1053/j.seminhematol.2016.04.019
更新日期：2016-04-01 00:00:00
abstract：:Over the last two decades quality of life (QoL) and the social challenges of allogeneic hematopoietic stem cell transplant (allo-HSCT) survivors have been emerging as subjects of extensive research and are now considered as very important aspects in the pretransplant evaluation and management of allo-HSCT recipients. ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2011.10.004
更新日期：2012-01-01 00:00:00
abstract：:Bone marrow transplantation (BMT) from a human leukocyte antigen (HLA)-matched sibling is the treatment of choice in children and young adults with severe aplastic anemia (SAA). However, because only 30% of patients have a suitable donor, more aggressive nontransplant immunosuppressive regimens have been used, with re...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(00)90029-5
更新日期：2000-01-01 00:00:00
abstract：:Severe neutropenia renders patients susceptible to life-threatening bacterial and fungal infections. Despite improvements in supportive care and antimicrobial therapy, morbidity and mortality remains significant. Since the 1960s, granulocyte transfusions have been used to either treat or prevent serious infections in ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2019.11.002
更新日期：2019-10-01 00:00:00
abstract：:Hodgkin Lymphoma (HL) is a lymphoproliferative disorder of B cells that commonly has a favorable prognosis when treated with either combination chemotherapy and radiation therapy, or chemotherapy alone. However, the prognosis for patients who relapse, or have evidence for refractory disease, is poor and new treatments...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2016.05.011
更新日期：2016-07-01 00:00:00
abstract：:A retrospective study was conducted to determine treatment patterns for idiopathic thrombocytopenia purpura (ITP) across the US and to determine the cost of its treatment with high-dose intravenous immunoglobulin (IVIg) and anti-D therapy. Information on the incidence, treatment patterns, hospital care, and costs for ...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Management of patients with beta-thalassemia is based on adequate, safe blood transfusions (free of transfusion-transmitted diseases) and prevention of iron overload. Iron overload causes multiple endocrinopathies, contributes to osteoporosis, and is the cause of cardiac disease. Cardiac disease, secondary to iron dam...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(01)90029-0
更新日期：2001-10-01 00:00:00
abstract：:Untreated anemia is common in cancer patients. Previous studies have demonstrated that both the existence of cancer and treatment with chemotherapy can suppress the normal endogenous erythropoietic response to anemia, making some cancer patients transfusion cadidates. In placebo-controlled phase III studies, administr...
journal_title：Seminars in hematology
pub_type： 临床试验,杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:Myelodysplastic syndrome (MDS) with deletion 5q (del(5q)) is a distinct clinical and pathological disease subset that is exquisitely sensitive to lenalidomide for the treatment of red blood cell transfusion-dependent anemia. Although lenalidomide has erythropoeitic promoting activity in MDS without del(5q) (non-del(5q...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2017.06.003
更新日期：2017-07-01 00:00:00
abstract：:Anemia of chronic disease (ACD) or inflammation may be secondary to infections, autoimmune disorders, chronic renal failure, or malignancies. It is characterized by an immune activation with an increase in inflammatory cytokines and resultant increase in hepcidin levels. In addition, inappropriate erythropoietin level...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2013.06.006
更新日期：2013-07-01 00:00:00
abstract：:Primary immune thrombocytopenic purpura (ITP) remains a diagnosis of exclusion both from nonimmune causes of thrombocytopenia and immune thrombocytopenia that develops in the context of other disorders (secondary immune thrombocytopenia). The pathobiology, natural history, and response to therapy of the diverse causes...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2008.12.005
更新日期：2009-01-01 00:00:00
abstract：:Immune thrombocytopenia (ITP) is a bleeding disorder characterized by low platelet counts due to decreased platelet production as well as increased platelet destruction by autoimmune mechanisms. A shift toward Th1 and possibly Th17 cells together with impaired regulatory compartment, including T-regulatory (Tregs) and...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2013.03.011
更新日期：2013-01-01 00:00:00
abstract：:By definition, myeloproliferative disorders (MPDs) are caused by an acquired somatic mutation of a hematopoietic progenitor/stem cell and have sporadic occurrence. However, well-documented families exist with first-degree relatives acquiring one or several MPDs. It is reasonable to assume that the germ-line mutation(s...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2005.08.002
更新日期：2005-10-01 00:00:00
abstract：:Mechanisms of resistance to the tyrosine kinase inhibitor (TKI) imatinib had been modeled in vitro even prior to the first reports of clinical resistance in patients with chronic myeloid leukemia (CML). The discovery that BCR-ABL is reactivated at the time of resistance and the unveiling of point mutations within the ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.06.005
更新日期：2010-10-01 00:00:00
