Abstract:
:Safety testing for replication-competent retrovirus (RCR) is an important requirement in gene transfer clinical trials using retroviral vectors. A sensitive polymerase chain reaction (PCR) method is one approach to RCR detection. Only in the presence of RCR will the pol-env encoding sequences, necessary for viral replication and packaging, be amplified from proviral DNA in infected indicator cells. To avoid false-positive results in this assay it is crucial that indicator cell lines are free of endogenous retroviral sequences that could also be amplified with pol-env PCR primers. We screened candidate murine indicator cell lines and determined that while Mus dunni is free of detectable pol-env sequences, endogenous retroviral sequences do indeed exist in several cell lines and lead to false-positive results in the PCR assay for RCR. Furthermore, these endogenous retroviral sequences are expressed as RNA transcripts in NIH 3T3 and SC-1 cell lines, as determined by PCR amplification of cDNA but, nevertheless, do not give rise to replication-competent particles. We recognize the potential for murine cell lines to undergo spontaneous rearrangements of endogenous viral sequences in culture and give rise to recombinants containing newly acquired contiguous pol-env sequences. Indicator cell lines should thus be carefully selected and monitored on an ongoing basis when used in safety testing using PCR approaches for the detection of RCR.
journal_name
Leuk Lymphomajournal_title
Leukemia & lymphomaauthors
Allan DS,De Koven A,Wild A,Kamel-Reid S,Dubé IDdoi
10.3109/10428199609054842subject
Has Abstractpub_date
1996-10-01 00:00:00pages
375-81issue
3-4eissn
1042-8194issn
1029-2403journal_volume
23pub_type
杂志文章abstract::Systemic mast cell disease (SMCD) has a highly variable clinical expression and course. That SMCD is associated with hematologic disorders has been widely described. We report an unusual case of systemic mast cell disease and concurrent chronic myelomonocytic leukemia in a 60 year old male. ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199909167403
更新日期:1999-01-01 00:00:00
abstract::Glutamate is the major excitatory neurotransmitter of the nervous system. We previously found that glutamate activates normal human T-cells, inducing their adhesion and chemotaxis, via its glutamate receptors of the alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) subtype 3 (GluR3) expressed in these ce...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190902878448
更新日期:2009-06-01 00:00:00
abstract::Several surveys have defined chronic lymphocytic leukemia (CLL) patients as a high-risk patient population for developing second neoplasms. As possible mechanisms underlying the increased risk of specific second malignancies in CLL patients the immunodeficiency associated with disease is generally proposed. As far as ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190400007524
更新日期:2005-01-01 00:00:00
abstract::A family with erythroleukemia is presented, in which father and son were diagnosed at the same age, but 20 years apart, with almost identical clinical and morphological features of the disease. No environmental factors were identified. The karyotypic abnormalities of the bone marrow blasts in the son demonstrated 2 ma...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199809057551
更新日期:1998-07-01 00:00:00
abstract::Patients with chemotherapy-refractory non-Hodgkin lymphoma (NHL) have a poor prognosis with a median overall survival (OS) of only 10 months. To investigate the role of radiotherapy (RT) in such patients, we conducted a retrospective review of 17 patients with biopsy-proven refractory NHL who received hyperfractionate...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2020.1719096
更新日期:2020-06-01 00:00:00
abstract::To explore the feasibility and potential advantages of PBSC in allogeneic transplantation, we grafted 24 patients (age 16-57, median 37) with different hematologic diseases (ALL = 10, AML = 5, MM = 4, NHL = 2, CML = 1, MDS = 1, AA = 1), 23 HLA-identical to their siblings and 1 partially matched. Cells were collected f...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199709058600
更新日期:1997-12-01 00:00:00
abstract::In the present study we assess the antitumor effect and circulating stem cells (CSC) mobilizing capacity of high-dose cyclophosphamide (5 to 7 gr/m2, HDCY). This treatment was given to 21 patients with various hematologic malignancies (8 NHL, 5 MM, 4 HD, 3 CML) excluding 1 with neuroblastoma. All were eligible for lat...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199409049652
更新日期:1994-06-01 00:00:00
abstract::This study reports the clinical, haematological and immunophenotypic features of a series of 25 patients with clonal expansions of large granular lymphocytes (LGL)/NK-associated (NKa) cells. These showed a male predominance (16:9) with a median age of 67 (range 38-91) years; four had a documented history of rheumatoid...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199509056836
更新日期:1995-04-01 00:00:00
abstract::The detection of monoclonal expansions of the immunoglobulin heavy chain (IgH) or the T-cell receptor-gamma (TCRgamma) chain genes is an important supplement for the diagnosis of the non-Hodgkin's lymphomas (NHLs). Detection of monoclonality by polymerase chain reaction (PCR) method has offered an efficient approach f...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/1042819021000040314
更新日期:2003-01-01 00:00:00
abstract::Non-Hodgkin lymphoma (NHL) is one of the most common cancers in childhood. The development of chemoresistance in tumor cells is one of the principal causes of treatment failure. This resistance has been associated with different mechanisms, one being the overexpression of anti-apoptotic proteins such as Bcl-xL. It has...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2012.733874
更新日期:2013-05-01 00:00:00
abstract::Primary effusion lymphoma (PEL) is a recently described rare type of non-Hodgkin's lymphoma occurring almost exclusively in HIV infected people. Human herpesvirus 8 (HHV-8), has been linked with PEL, and a causative relationship has been suggested. In the vast majority of PEL cases Epstein-Barr virus (EBV) has been fo...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428190109058002
更新日期:2001-04-01 00:00:00
abstract::Lenalidomide is a backbone agent in the treatment of multiple myeloma, but dose adjustment is required for those with renal impairment (RI). We evaluated the pharmacokinetics (PK) and safety of lenalidomide and dexamethasone as frontline pre-transplant induction, with doses adjusted at start of each cycle based on cre...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2020.1747064
更新日期:2020-08-01 00:00:00
abstract::The highly controlled degradation of proteins via the ubiquitin-proteasome pathway represents a key mechanism for cell regulation and homeostasis. Ubiquitin-dependent proteolysis, carried out in large part by the E3 ubiquitin ligases, is a critical mode of post-translational modification that is important in regulatio...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190410001663635
更新日期:2004-07-01 00:00:00
abstract::Imatinib, which has revolutionized chronic myeloid leukemia (CML) treatment, was suggested to improve lipid profile. Statins, a dyslipidemia drug, were reported to potentiate imatinib's antileukemic effect. However, analysis of imatinib combined with statins is lacking. We have retrospectively analyzed the normalizati...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2016.1228928
更新日期:2017-05-01 00:00:00
abstract::Angiogenesis is a necessary step in solid tumor progression (growth, invasion and metastasis) with which it correlates and is indicative of an unfavourable prognosis. We observed bone marrow angiogenesis in patients with active multiple myeloma (MM), though not in patients with non-active MM nor with monoclonal gammop...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199509054750
更新日期:1995-12-01 00:00:00
abstract::There is little information in the literature on outcomes using doxorubicin-based chemotherapy with or without radiotherapy for early-stage peripheral T-cell lymphomas. The purpose of this study was to analyze The University of Texas M.D. Anderson Cancer Center results in such patients. From 1985 to 1998, 39 patients ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/1042819021000006277
更新日期:2002-09-01 00:00:00
abstract::Acute promyelocytic leukemia (APL) is characterized by a unique hemorrhagic syndrome, disseminated intravascular coagulation, and the association with the specific (15;17 chi q22-23:q12-21) translocation, which disrupts the retinoic acid receptor alpha (RARA) and the promyelocytic leukemia (PML) genes. The t(15;17) le...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199609051752
更新日期:1996-07-01 00:00:00
abstract::A review of recent information on the expression and the ATRA-driven modulation of cell surface adhesion molecules of acute myelogenous leukemia blast cells is presented. Cytofluorometric studies on fresh blast cells have demonstrated that CD11a, CD11b CD11c, CD15, CD45RO and CD54 expression is significantly lower in ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199209067601
更新日期:1996-04-01 00:00:00
abstract::Secondary malignancies represent a relevant complication of chemotherapy employed for a previous cancer. Acute leukemias represent the most frequent secondary malignancy in the first decade following primary neoplasms; secondary leukemias are generally myeloid and can be preceeded by a myelodysplastic syndrome. The bi...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428190009113377
更新日期:2000-11-01 00:00:00
abstract::The proliferation index in mantle cell lymphoma (MCL) has not been validated in the context of aggressive therapy regimens in the rituximab era. We assessed Ki67 and PIM1 (a cell cycle-related gene upregulated in blastoid MCL) expression by immunohistochemistry in a phase II study Cancer and Leukemia Group B 59909 of ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190802419640
更新日期:2008-11-01 00:00:00
abstract::The aberrant expression of myeloid antigen CD66 on acute B-lymphoblastic leukemia (B-ALL) cells is a well-documented phenomenon. CD66a is a major subtype of the CD66 family which plays a dual role in different cancers, and the contradictory effect may depend on the isoform ratio of CD66a-4L to CD66a-4S. Although the a...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2014.913287
更新日期:2015-01-01 00:00:00
abstract::Extranodal marginal zone B-cell lymphomas of mucosal-associated lymphoid tissue (MALT)-type occur in a number of anatomic sites, but share overlapping morphological and immunophenotypic features. Helicobacter pylori infection has been identified as an etiological factor in gastric MALT lymphoma, but the cause of MALT ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190310001623793
更新日期:2003-01-01 00:00:00
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::Recombinant interferon alpha-2b (IFN-alpha2) has direct and indirect antiproliferative effects in lymphoma, and may augment cytotoxicity when combined with chemotherapy. CALGB 8691 is a randomized study of daily oral cyclophosphamide (CPA) at 100 mg/m2 with or without IFN-alpha2 at 2 x 106 IU/m2 three times per week, ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1080/10428190903093807
更新日期:2009-10-01 00:00:00
abstract::The anemia of MDS often results in decreased quality of life, which is invoked to justify red cell transfusions; however, there are sparse data regarding the minimum hemoglobin (Hb) at which it is safe to forgo transfusions for patients with no evidence of end-organ damage. This issue is even more important in the COV...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2020.1791854
更新日期:2020-12-01 00:00:00
abstract::The de novo megakaryocytic leukemia fulfilling the FAB criteria is still an uncommonly recognized variant of acute leukemia. Many studies have shown that the megakaryocytic leukemic events may occur at a pluripotent stem cell level and clinical observations reveal that the megakaryocytic leukemias are diverse entities...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199209051011
更新日期:1992-11-01 00:00:00
abstract::To distinguish the similarities or differences between T-cell acute lymphoblastic leukaemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL), we retrospectively analyzed the clinical, immunophenotypic, cytogenetic, and molecular characteristics in 37 children diagnosed between December 1990 and December 2003. Compara...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190701509772
更新日期:2007-09-01 00:00:00
abstract::The age-adjusted incidence of Hodgkin's lymphoma (HL) is markedly higher in Saudi Arabia than in the USA, and accounts for 10.5% of all neoplasias in children aged 15 years or older in Saudi Arabia. Epstein-Barr virus (EBV) infection has been suspected to cause high HL incidence in developing countries. To investigate...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190500286879
更新日期:2006-04-01 00:00:00
abstract::We present a female patient with monoclonal gammopathy of undetermined significance who has remained stable for five years but evolved to overt myeloma in strict temporal relationship with the diagnosis of GH-secreting pituitary macroadenoma. IGF-I serum levels correlated with serum and urine M component. Since the in...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/1042819021000037895
更新日期:2003-03-01 00:00:00
abstract::The aim of this study was to evaluate the influence of the most common genetic variants in methylenetetrahydrofolate reductase (MTHFR), thiopurine methyltransferase (TPMT) and glutathione-S-transferases (GSTs) on the outcome of acute lymphoblastic leukemia (ALL) treatment in Argentinean children. Two hundred and eight...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2014.951844
更新日期:2015-05-01 00:00:00