Abstract:
:Impressive gains have been made in the therapy of childhood acute lymphoblastic leukemia (ALL) in recent years such that remissions today are commonly achieved in up to 95% of patients and long term disease-free survival rates approach 70%. Methotrexate is a key component in ALL consolidation and maintenance therapies and is administered intrathecally in the prophylaxis and treatment of central nervous system leukemia. Critical determinants of methotrexate sensitivity and resistance (dihydrofolate reductase levels, methotrexate membrane transport, methotrexate polyglutamylation) previously described in cultured cells have recently been identified in lymphoblasts from children with ALL. Heterogenous expressions of increased dihydrofolate reductase or impaired methotrexate transport can be detected in both diagnostic and relapsed ALL specimens by flow cytometry with fluorescent methotrexate analogues. Lymphoblasts from children with ALL synthesize long chain polyglutamates and correlations have been established between the accumulation of methotrexate polyglutamates in ALL blasts and characteristic patient prognostic features. Variations in methotrexate polyglutamate accumulation may reflect changes in polyglutamate synthetic or degradative enzymes, or may be secondary to changes in methotrexate influx or dihydrofolate reductase levels. Other critical elements in treatment response to methotrexate include the dose and route of methotrexate administration, its catabolism to 7-hydroxymethotrexate, and the rate of methotrexate plasma clearance. A unique relationship exists between chromosome 21 and ALL leukemogenesis, and response to treatment including methotrexate. A better understanding of the molecular bases of methotrexate response and the development of methotrexate resistance in childhood ALL should facilitate further improvements in the effectiveness of methotrexate-based chemotherapy for this disease.
journal_name
Leuk Lymphomajournal_title
Leukemia & lymphomaauthors
Matherly LH,Taub JWdoi
10.3109/10428199609093433subject
Has Abstractpub_date
1996-05-01 00:00:00pages
359-68issue
5-6eissn
1042-8194issn
1029-2403journal_volume
21pub_type
杂志文章,评审abstract::Acute myeloid leukemia (AML) is the most common type of leukemia found in adults. Identifying jobs that pose a risk for AML may be useful for identifying new risk factors. A matched case-control analysis was conducted using California Cancer Registry data from 1988 to 2007. This study included 8999 cases of AML and 24...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2014.894189
更新日期:2014-11-01 00:00:00
abstract::BCL6 is a transcriptional repressor often expressed constitutively in diffuse large B-cell lymphomas (DLBCL) due to mutations of its genomic locus. BCL6 mediates aberrant survival, proliferation, genomic instability and differentiation blockade in DLBCL cells. The biochemical study of BCL6 mediated gene repression has...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190801895345
更新日期:2008-05-01 00:00:00
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199409049709
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abstract::Graft-versus-host disease (GVHD) represents the major barrier to successful allogeneic bone marrow transplantation. Positive and negative selection studies have unequivocally demonstrated that donor T cells are responsible for the induction phase of GVHD. Inhibition of the early steps of T cell antigen recognition lea...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199609054796
更新日期:1996-09-01 00:00:00
abstract::Obesity is a risk factor for mortality and relapse of certain cancers. However, existing evidence for pediatric leukemia is inconsistent. The aim of this systematic review and meta-analysis was to evaluate the association between obesity at diagnosis and pediatric acute leukemia mortality and relapse. This study syste...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,meta分析,评审
doi:10.3109/10428194.2015.1076815
更新日期:2016-05-01 00:00:00
abstract::We treated 15 patients with therapy related acute nonlymphocytic leukemia (tANLL) or therapy related myelodysplastic syndrome (tMDS) who had no rearrangements of chromosomes 5 and/or 7 or complex cytogenetic rearrangements by intensive chemotherapy. The median age was 43 years. Seven patients had one of the "specific"...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199109068114
更新日期:1991-01-01 00:00:00
abstract::Using a non-myeloablative stem cell trasplantation (NST) program, 25 allografts were prospectively given to 24 patients with acute myelogenous leukemia (AML) eligible for conventional allografting; 2 individuals had secondary forms of AML. The median age of the patients was 35 years, with a range of 12 to 56. All pati...
journal_title:Leukemia & lymphoma
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doi:10.1080/10428190310001642846
更新日期:2004-06-01 00:00:00
abstract::Recent advances in genomics are revealing new molecular targets for vaccination strategies in cancer, and unraveling the immune pathways that must be activated. Initially, work focused on idiotypic antigen expressed by the clonal immunoglobulin (Ig) of B-cell tumors. This involved assembling the encoding V(H) and V(L)...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190310001623711
更新日期:2003-01-01 00:00:00
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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更新日期:2014-01-01 00:00:00
abstract::Fludarabine is an active agent for the treatment of Waldenstrom's macroglobulinemia (WM) and its combination with cyclophosphamide has been effective in many patients with low-grade lymphoma and chronic lymphocytic leukemia. Based on these data, we administered the combination of fludarabine (25 mg/m2 i.v. day 1-3) an...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.1080/1042819031000077025
更新日期:2003-06-01 00:00:00
abstract::Abstract Acute graft-versus-host disease (GVHD) has compromised and continues to compromise the benefits associated with allogeneic hematopoietic cell transplant to cure malignant and non-malignant diseases. Pharmacologic interventions to prevent GVHD have emerged as a major objective of research in the immunology and...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428194.2012.762978
更新日期:2013-08-01 00:00:00
abstract::Little is known about disparities in myelodysplastic syndromes (MDS). We performed a retrospective chart review of patients with MDS (n = 252) evaluated at the University of Maryland Greenebaum Cancer Center between 2000 and 2010. The median age at diagnosis was 65 years, which was lower than the median age of 76 year...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2012.710904
更新日期:2013-02-01 00:00:00
abstract::It is unknown whether rituximab increases the risk of second primary malignancies (SPMs) in patients with diffuse large cell B-cell lymphoma (DLBCL). We assessed SPMs in DLBCL patients diagnosed between 1996 and 2014 in comparison with the general Israeli population and dependent on rituximab treatment. Jewish patient...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2020.1779257
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abstract::The present study has explored the possible value of sCA-125 as a prognostic factor in Hodgkin's lymphoma (HL). From August 1992 to June 2005 sCA-125 was measured at presentation and at the end of the treatments in 221 newly diagnosed adult patients with HL. In this study 90/221 (41%) patients showed a value greater t...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190601183710
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章,随机对照试验
doi:10.3109/10428194.2015.1106534
更新日期:2016-07-01 00:00:00
abstract::Monoclonal proteins (paraproteins) may be detected in the sera in approximately 1% of the general population and are frequently associated with peripheral neuropathy. Paraproteinemic neuropathy (PPN) is most commonly associated with monoclonal gammopathy of undetermined significance, and may also occur in the context ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190903111922
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428190903586326
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abstract::B-lineage acute lymphoblastic leukemia (B-ALL) in the elderly population is generally considered to have a poor prognosis. It is unclear whether their survival has improved in the current era. Using the Surveillance, Epidemiology, and End Results database, we selected 717 elderly patients (age≥60) with B-ALL diagnosed...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2014.991921
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199509054426
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190701457923
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/1042819031000067521
更新日期:2003-06-01 00:00:00
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199409051648
更新日期:1994-03-01 00:00:00
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
pub_type: 杂志文章,多中心研究
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abstract::Nilotinib has shown favorable safety in patients with Philadelphia chromosome-positive (Ph+) chronic myeloid leukemia (CML) in chronic (CML-CP) or accelerated phase (CML-AP) who failed prior imatinib, and superior efficacy over imatinib in newly diagnosed Ph+ patients with CML-CP. Reported here are the efficacy and sa...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,多中心研究
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journal_title:Leukemia & lymphoma
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