Abstract：
:ABCG2 encodes a transporter protein that is associated with multidrug-resistant phenotypes in many cancers, including acute myeloid leukemia (AML); high levels of expression are generally associated with a poor prognosis. To better understand how expression of ABCG2 is controlled in pediatric AML, we performed a detailed analysis of the ABCG2 transcript isoforms from a variety of tissue sources, including 85 pediatric AML samples. These studies revealed a complex 5' untranslated region (UTR) with 6 novel exons and multiple splice variants. Samples from children with acute megakaryoblastic leukemia (AML FAB-M7) not associated with Down syndrome showed uniformly higher levels of ABCG2 transcripts than samples from children with other AML subtypes. A novel 5' UTR identified 90kb upstream of the exon 2 translation initiation site was expressed only in M7 AML subtypes. An associated upstream promoter fragment was shown to be selectively expressed in megakaryoblastic leukemia cells but not in human epithelial cell lines. These findings identify a new tissue-specific ABCG2 promoter that is selectively expressed in pediatric M7 AML. We also show a relatively high incidence of ABCG2 mRNA expression in non-Down associated M7 AML, which may contribute to the relatively poor prognosis of the M7 AML subtype.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Campbell PK,Zong Y,Yang S,Zhou S,Rubnitz JE,Sorrentino BPdoi
10.1016/j.leukres.2011.05.004subject
Has Abstractpub_date
2011-10-01 00:00:00pages
1321-9issue
10eissn
0145-2126issn
1873-5835pii
S0145-2126(11)00221-9journal_volume
35pub_type
杂志文章abstract：:We assessed plasma cell proliferation (by propidium iodide index, PC-PI) and apoptosis (by annexin-V index PC-AI) for the estimation of overall survival (OS) in multiple myeloma (MM) patients. 181 patients with newly diagnosed MM were assessed, treated using conventional chemotherapy. The values best discriminating pa...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.04.015
更新日期：2011-01-01 00:00:00
abstract：:Vinorelbine chemotherapy with G-CSF stimulation is the standard mobilization regimen in Switzerland for multiple myeloma patients. However, with the increasing use of bortezomib during induction treatment, adding the neurotoxic compound vinorelbine for mobilization may aggravate bortezomib-induced polyneuropathy. In t...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2015.03.015
更新日期：2015-07-01 00:00:00
abstract：:Nucleic acid and protein synthesis was determined in immature myeloid cells isolated from seven normal bone marrow samples and compared to blasts from nine patients with fullblown acute non-lymphocytic leukemia. Samples obtained from normal bone marrow contained a mean of 82% immature myeloid cells with 29.9% S-phase ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(82)90098-4
更新日期：1982-01-01 00:00:00
abstract：:The classical myeloproliferative neoplasms (MPN) are comparatively uncommon in children and display a degree of mutational naivety if considering the high frequency of known MPN driver events observed in the corresponding adult diseases. Whole exome sequencing has unravelled much of the underlying molecular complexity...
journal_title：Leukemia research
pub_type： 信件
doi：10.1016/j.leukres.2014.06.003
更新日期：2014-08-01 00:00:00
abstract：:Inhibition of cyclooxygenase 2 (COX-2) by the selective COX-2 inhibitor celecoxib has been suggested as potentially useful for B-cell lymphoma therapy. However, additional pharmacological activities of celecoxib have been discovered and have challenged the notion that its antitumor effects are mediated primarily via t...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.09.028
更新日期：2010-02-01 00:00:00
abstract：:Using a short term liquid system we have shown that blood from some patients with primary myelofibrosis (PMF) and chronic granulocytic leukaemia (CGL) in megakaryoblastic transformation (CGL-Mk) gives rise to large numbers of progenitor cells committed to the megakaryocyte (Mk) lineage. As assessed by indirect immunof...
journal_title：Leukemia research
pub_type： 历史文章,杂志文章
doi：10.1016/0145-2126(85)90108-0
更新日期：1985-01-01 00:00:00
abstract：:A wide range of different agents are capable of inducing the onset of HL-60 differentiation along the myeloid lineage. The diversity of these agents has made the analysis of the molecular mechanisms involved in the regulation of the onset and progress of terminal differentiation in these cells difficult. We have adapt...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(89)90081-7
更新日期：1989-01-01 00:00:00
abstract：:Dietary bioflavonoids are secondary metabolites of plants that are known to have a variety of bio-effects, including anti-cancer activity. In this study, we examined the effects of flavonoids on the growth of human leukemia cells and found that certain flavonoids induce apoptosis in a variety of human leukemia cells. ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2004.11.015
更新日期：2005-05-01 00:00:00
abstract：BACKGROUND:Chylomicrons carry in the bloodstream dietary fats absorbed the intestine for storage in the body tissues such as adipose and muscle. The two-step chylomicron metabolism consists in lipolysis by lipoprotein lipase on vessel walls and hepatic uptake of triglyceride-depleted remnants. Chylomicron metabolism is...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(02)00087-5
更新日期：2003-02-01 00:00:00
abstract：:Retinoic acid (RA) and 1,25-dihydroxyvitamin D3 (D3) are well known for inducing differentiation in many leukemic cell lines. The nuclear signalling pathways of RA and D3 are mediated through their cognate receptors, the retinoic acid receptor (RAR) and vitamin D3 receptor (VDR), respectively. Retinoid X receptor (RXR...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(96)00020-3
更新日期：1996-08-01 00:00:00
abstract：:The expression and release of adhesion molecules by acute myelogenous leukemia (AML) blasts was investigated in vitro. For most patients AML blasts expressed relatively low levels of membrane-bound L-selectin and Intercellular adhesion molecule 1 (ICAM-1), but their soluble forms were detected in the supernatants for ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(98)00156-8
更新日期：1999-02-01 00:00:00
abstract：:We analyzed the biological activity of HA14-1, a small organic compound inhibitor of Bcl-2, against established leukaemia cell lines and blasts from acute myeloid leukaemia (AML) patients. HA14-1 had a potent killing activity against the leukaemia cell line that expressed endogenous or ectopic Bcl-2. This activity was...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.11.010
更新日期：2007-06-01 00:00:00
abstract：:We have recently described that a variant of L1210 leukemia cell (L1210/LN-1) originally fused with Lesch-Nyhan fibroblast is highly immunogenic for inducing tumor-specific transplantation immunity in (BALB/cxDBA/2)F1 mice. This finding has clearly been confirmed in the present study by in-vitro cell-mediated cytotoxi...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90316-9
更新日期：1985-01-01 00:00:00
abstract：:Multiple myeloma (MM) is an incurable plasma cell malignancy, which causes a significant morbidity due to organ damage and bone tissue destruction. In recent years, novel drugs have become available for MM therapy thanks to a more deepened knowledge of this disease's pathogenesis. The perspective of employing targeted...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2012.10.016
更新日期：2013-02-01 00:00:00
abstract：:We employed a liquid culture system to examine the in vitro effects of vincristine and vindesine on cellular incorporation of 35SO4 into leukemic cells obtained from 5 patients with chronic granulocytic leukemia in blast crisis. The per cent of 35SO4 into drug-treated as compared to saline-treated leukemic cells was c...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(84)90062-6
更新日期：1984-01-01 00:00:00
abstract：:Smoking may be associated with accelerated erythropoiesis, leukocytosis and thrombocytosis, which are also hallmarks in patients with polycythemia vera, essential thrombocythemia and early stages of myelofibrosis (MPNs). The JAK-STAT and NF-κB signaling pathways are activated in both smokers and in patients with MPNs....
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2015.09.002
更新日期：2015-09-09 00:00:00
abstract：:Many elderly patients with newly diagnosed acute myeloid leukemia (AML) present with cardiac comorbidity precluding the use of anthracycline containing chemotherapy regimens. Amsacrine, a topoisomerase II inhibitor, has been proposed as possible alternative to anthracyclines. Here, we report about the combination of a...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章
doi：10.1016/j.leukres.2007.06.015
更新日期：2008-03-01 00:00:00
abstract：:The impact of socioeconomic status (SES) upon childhood cancer outcomes has not been extensively examined. Our objective was to determine the association between SES and event-free survival (EFS) among children with acute lymphoblastic leukemia (ALL) diagnosed in Ontario, Canada from 1995-2011 (N=1541) using Cox propo...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.leukres.2014.08.017
更新日期：2014-12-01 00:00:00
abstract：:microRNA profiling of acute myeloid leukemia patient samples identified miR-125a as being decreased. Current literature has investigated miR-125a's role in normal hematopoiesis but not within acute myeloid leukemia. Analysis of the upstream region of miR-125a identified several CpG islands. Both precursor and mature m...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2013.12.021
更新日期：2014-03-01 00:00:00
abstract：:Despite high rates of hematologic and cytogenetic responses to imatinib therapy, the emergence of resistance to imatinib has been recognized as a major problem in the treatment of Ph-positive leukemia. The high frequency of BCR-ABL mutations and amplifications represents the high degree of heterogeneity in patients wi...
journal_title：Leukemia research
pub_type： 杂志文章,评审
doi：10.1016/j.leukres.2003.10.007
更新日期：2004-05-01 00:00:00
abstract：:MONO-MAC-1 is a human cell line with properties of blood monocytes, which can be used as a model system to study monocytic functions in vitro. In the present study, we prepared a karyotype of MONO-MAC-1, analysed the growth behaviour, determined the presence of differentiation-associated antigens and studied the expre...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(96)00129-4
更新日期：1997-04-01 00:00:00
abstract：:Deregulated myc, bcl-2 and/or TP53 gene expression is associated with non-Hodgkin's B cell lymphomas (B-NHLs). Emu-N-myc transgenic mice that misexpress N-myc protein and carry a non-disrupted bcl-2 gene develop indolent B cell lymphomas reminiscent of the B-NHL, follicular lymphoma. Tumors from mice with end-stage di...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(99)00103-4
更新日期：1999-10-01 00:00:00
abstract：:Feulgen-DNA cytophotometry and 3H-thymidine autoradiography were used to evaluate therapeutic cytapheresis effects on cell cycle distributions of peripheral blood leukemic cells in 15 acute leukemia, 5 CML and 8 CLL patients and of bone marrow erythroblasts in 18 PV patients. Both individual cytapheresis procedures an...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(87)90186-x
更新日期：1987-01-01 00:00:00
abstract：:The mechanism of the inhibition of proliferation of human leukaemia 60 (HL60) cells by S-D-lactoylglutathione in vitro was investigated. The median inhibitory concentration IC50 value was 66 microM (95% C.I. 50-87 microM; n = 18). The inhibition of leukaemia cell growth required exposure of HL60 cells to S-D-lactoylgl...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(93)90017-f
更新日期：1993-04-01 00:00:00
abstract：:Although clinical experience and in vitro data provide evidence of an anti-leukemic activity of T cells, there are few examples of recognition of leukemic cells by tumor-specific T cells in vitro. Tumor antigens encoded by the MAGE genes are useful tools to study this recognition. We tested the sensitivity to recognit...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(00)00053-9
更新日期：2000-10-01 00:00:00
abstract：:The association between seven polymorphisms in the genes hOCT1 and MDR1, encoding for imatinib transporter proteins, and the response to imatinib 400mg/daily was investigated in 65 patients newly diagnosed with chronic-phase chronic myeloid leukemia. The AA genotype at the rs6935207 hOCT1 polymorphic locus was not det...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.12.004
更新日期：2011-08-01 00:00:00
abstract：:With the application of adequately sensitive tests, it is now becoming evident that more than 90% of patients with conventionally-defined polycythemia vera (PV) carry the somatic JAK2V617F mutation in their granulocytes. However, the specific mutation is also found in other classic and atypical myeloproliferative diso...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2006.01.004
更新日期：2006-06-01 00:00:00
abstract：:Discovering genetic predictors of childhood acute lymphoblastic leukemia (ALL) necessitates the evaluation of novel factors including maternal genetic effects, which are a proxy for the intrauterine environment, and robust epidemiologic study designs. Therefore, we evaluated five maternal and offspring xenobiotic meta...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.leukres.2013.01.020
更新日期：2013-05-01 00:00:00
abstract：:The effects of two recombinant human CSFs (G-CSF and GM-CSF) on the growth of blast progenitors from 36 acute myeloblastic leukemia patients were studied in methylcellulose and suspension cultures. Blast colony formation in methylcellulose and the growth of blast progenitors in suspension were stimulated by G-CSF or G...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(88)90063-x
更新日期：1988-01-01 00:00:00
abstract：:We have established a new T-cell line (CL-8313) that produces interleukin-3 from the spleen cells of mice with a radiation-induced myeloproliferative disorder. IL-3 activity was detected at an extremely high level in the culture medium of the CL-8313 cell line in the absence of any exogenous stimulator. A large amount...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(88)90005-7
更新日期：1988-01-01 00:00:00
