Abstract：
:Promoter hypermethylation occurs early in leukemogenesis and seems to be associated with poor prognosis in acute lymphoblastic leukemia (ALL). The methylation status of the promoter region of six genes was analyzed in 71 children with ALL using methylation specific PCR (MSP). Calcitonin (CALCA) and E-cadherin (CDH1) were the most frequently methylated genes in this group of patients. Considering the patients with central nervous system (CNS) infiltration, the estimated 2-year overall survival (OS) was 20% for those with methylation in CALCA promoter and 85% for those without (p=0.001). Our results suggest that the hypermethylation of CALCA promoter is a promising prognostic marker and may predict a higher risk for ALL patients with CNS infiltration.
journal_name
Leuk Resjournal_title
Leukemia researchauthors
Paixão VA,Vidal DO,Caballero OL,Vettore AL,Tone LG,Ribeiro KB,Lopes LFdoi
10.1016/j.leukres.2005.11.016subject
Has Abstractpub_date
2006-07-01 00:00:00pages
891-4issue
7eissn
0145-2126issn
1873-5835pii
S0145-2126(05)00457-1journal_volume
30pub_type
杂志文章abstract：:Philadelphia-positive chronic myeloid leukemia (Ph+ CML) patients who are resistant to imatinib are commonly treated with second-generation tyrosine kinase inhibitors (TKIs). Limited data exist on the possible effects of these drugs on subsequent allogeneic hematopoietic stem cell transplantation (allo-HSCT).The outco...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2009.04.036
更新日期：2010-02-01 00:00:00
abstract：:Malignant plasma cells exert osteoclast-like activity in vitro. We investigated the function of the calcitonin (CT) receptor (R) on myeloma cells from patients and in myeloma cell lines. Primary myeloma cells expressed high CTR levels whereas the cell lines uniformly exposed the CTR-2 variant expressed by osteoclasts....
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.07.009
更新日期：2008-04-01 00:00:00
abstract：:Pro-apoptotic signalling upon toll-like receptor (TLR) stimulation in myeloid cells is normally antagonized by the simultaneous activation of anti-apoptotic pathways. We have previously reported that IFN-alpha can sensitize human monocytes to apoptosis induction by lipopolysaccharide (LPS). Based on these results we i...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.05.001
更新日期：2007-12-01 00:00:00
abstract：:The ability of pH-sensitive liposomes and immunoliposomes to deliver synthetic antisense oligonucleotides (oligos) into human myeloid and lymphoid leukaemia cells was examined. The cellular uptake of an 18mer anti-myb oligonucleotide encapsulated in liposomes was from three- to five-fold higher than that of 32P-oligos...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(96)00062-8
更新日期：1996-11-01 00:00:00
abstract：:All-trans-retinoic acid (ATRA) has been proven active against a range of malignancies in isolated tissue culture systems and in human clinical trials, but the duration of its effects has been transient. Recent evidence indicates that the basis for the limited duration of ATRA's activity, at least in one form of leukem...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(94)90040-x
更新日期：1994-08-01 00:00:00
abstract：:Bcr-Abl tyrosine kinase inhibitor induces apoptosis and erythroid differentiation of K562 cells. During this erythroid differentiation, c-Myc and cyclin D1 transcripts are transiently downregulated. Accordingly, we studied the effect of cyclin D1 overexpression on erythroid differentiation. After treatment with 250 nM...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2003.10.022
更新日期：2004-06-01 00:00:00
abstract：:The WHO classification of hematological malignancies includes 5q-syndrome as a separate category within myelodysplastic syndromes (MDS). Clinically, patients with 5q-syndrome have a milder disease than patients with other MDS. The basis for this difference is not known. Identifying 5q-syndrome can be difficult because...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(02)00039-5
更新日期：2002-10-01 00:00:00
abstract：:Preclinical data suggest that all-trans retinoic acid (ATRA) synergizing with granulocyte colony stimulating factor (G-CSF), can improve the effectiveness of chemotherapy in acute myeloid leukemia (AML). Fludarabine 15 mg/m(2) is the minimum dose able to optimize intensification with fludarabine-arabinosylcytosine reg...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章
doi：10.1016/j.leukres.2008.12.014
更新日期：2009-08-01 00:00:00
abstract：:The Bcl-2 protein inhibits apoptosis (programmed cell death) of hematopoietic stem cells induced by a variety of noxious stimuli, thus mediating chemoresistance and decreasing chemosensitivity. Higher Bcl-2 expression correlates to an adverse outcome following therapy for acute myeloid leukemia (AML). The current stud...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.05.009
更新日期：2010-02-01 00:00:00
abstract：:Determination of T-cell clonality has an important additional value for diagnosis of T-cell lymphomas. Various molecular methods have been developed, including polymerase chain reaction (PCR) of T-cell receptor γ (TCRγ). The detection of PCR products usually relies commonly on either GeneScan (GS) analysis or heterodu...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2012.06.003
更新日期：2012-09-01 00:00:00
abstract：:We report the case of an elderly patient affected by Philadelphia positive Acute Lymphoblastic Leukaemia (Ph(+) ALL) who developed meningeal leukaemia during imatinib monotherapy, despite bone marrow molecular remission. Aggressive central nervous system (CNS)-directed therapy in combination with continued imatinib tr...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2007.03.018
更新日期：2007-10-01 00:00:00
abstract：:Thirty-nine patients with Philadelphia chromosome-positive (Ph1) chronic myelocytic leukemia (CML) were monitored using cytofluorometry and cytogenetics. During chronic phase, abnormal populations could be detected using commercially available monoclonal antibodies. Most of these abnormal populations had either an HLA...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90097-9
更新日期：1985-01-01 00:00:00
abstract：:Predisposition to lymphomagenesis is a well-known phenomenon of ataxia-telangiectasia, a recessive disorder caused by germline inactivation of ATM. ATM encodes a protein implicated in the repair of radiation induced double-strand breaks. Biallelic ATM inactivation was described also in sporadic lymphoid malignancies, ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2005.11.010
更新日期：2006-09-01 00:00:00
abstract：:We studied differentiation inducing effects of retinoic acid (RA), 1 alpha, 25-dihydroxyvitamin D3 (D3) and interferons (IFNs), alone and in combination, on fresh myeloid leukemic cells from 8 patients. RA not only induced the differentiation of leukemic cells in 5/8 cases, but potentiated differentiation by IFNs eith...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(90)90072-h
更新日期：1990-01-01 00:00:00
abstract：:This study was conducted to determine the frequency of the most common fusion genes in Mexican pediatric patients with acute lymphoblastic leukemia (ALL). Molecular analysis using RT-PCR was carried out in 53-blood samples: 52 patients with de novo ALL and one with relapsed ALL. The ETV6-RUNX1 fusion was found in 7 ca...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.03.021
更新日期：2008-10-01 00:00:00
abstract：:Rearrangements in MLL (MLL-r) are common within very young children with leukemia and affect the prognosis and treatment. Previous studies have suggested the use of the NG2 molecule as a marker for MLL-r but these studies were performed using a small number of infants. We analyzed 148 patients (all less than 24 months...
journal_title：Leukemia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.leukres.2011.03.006
更新日期：2011-08-01 00:00:00
abstract：:The inaugural meeting of the International Working Group on MDS cytogenetics convened 22-23 October 2007 in Chicago, IL. Under the sponsorship of the Myelodysplastic Syndromes Foundation, the group was organized to address the substantial need for worldwide standardized cytogenetic testing for MDS in clinical practice...
journal_title：Leukemia research
pub_type： 总体
doi：10.1016/j.leukres.2008.03.009
更新日期：2008-09-01 00:00:00
abstract：:The glycosylation of beta-hexosaminidase was investigated in the transformed cell-line, CCRF/CEM, derived from a human acute lymphoblastic leukaemia, and comparisons were made with enzyme from normal human skin fibroblasts. A series of studies including neuraminidase sensitivity, lectin chromatography, Biogel P4 chrom...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(88)90146-4
更新日期：1988-01-01 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：:Imatinib mesylate (IM) is the treatment of choice in patients with newly diagnosed chronic myeloid leukemia (CML), irrespectively of their age. Nevertheless, information regarding tolerability and responses in advanced-age patients, a subgroup in which co-morbidities and other factors may influence outcome, is scarce,...
journal_title：Leukemia research
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/j.leukres.2011.01.017
更新日期：2011-09-01 00:00:00
abstract：:Human promyelocytic leukemia cells (HL-60) mature into functional granulocytes in response to in vitro treatment with several classes of chemical agents. Compounds that increase intracellular adenosine 3':5' -cyclic monophosphate induce a modified program of maturation in which the cells demonstrate functional propert...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/0145-2126(85)90311-x
更新日期：1985-01-01 00:00:00
abstract：:Leukemic cell apoptosis may be enhanced by appropriate oxidative stress. We report here the mechanism of Jurkat cell apoptosis by monochloramine (NH(2)Cl), a neutrophil-derived oxidant. NH(2)Cl induced caspase-dependent apoptosis, which was preceded by cytochrome c and Smac/Diablo release from mitochondria. Within 10m...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.07.009
更新日期：2009-01-01 00:00:00
abstract：:The simultaneous occurrence of two specific acquired chromosomal abnormalities in chronic or acute leukaemias is rare. Inherited chromosomal abnormalities are also rare events in the general population. In chronic myeloid leukaemia (CML), characterised by the t(9;22)(q34;q11), the inv(16)(p13q22) has been described as...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2005.06.003
更新日期：2006-01-01 00:00:00
abstract：:Internal tandem duplications (ITDs) of the FLT3 gene occur in approximately 20-30% of acute myeloid leukemia (AML) patients. We investigated if FLT3 ITDs could be used as minimal residual disease (MRD) markers for AML patients. Patient-specific polymerase chain reaction (PCR) assays for FLT3 ITDs were developed for fo...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/s0145-2126(01)00087-x
更新日期：2001-12-01 00:00:00
abstract：:Delta retrovirus-mediated leukemogenesis is dependent on the oncogenic potential of Tax. It is not clear, however, whether Tax-specific immune responses play a role in leukemia onset and progression. Using the BLV-associated leukemia model in sheep, we found that Tax-specific cytotoxic responses induced by DNA immuniz...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2010.06.003
更新日期：2010-12-01 00:00:00
abstract：:Deletion in chromosome 9p involving the CDKN2A locus (9p21.3) is known in many malignancies. To detect this deletion in adolescent ALL patients we used oligo array CGH and studied 54 patients aged 10-25 years. Deletion rate was 25/54 (46%), of these 19/25 (76%) were homozygous. Small deletions (<200 kb) were found in ...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2008.01.014
更新日期：2008-08-01 00:00:00
abstract：:miRNAs have been reported to be involved in the pathogenesis of many cancers. In this article, we investigated the role and the mechanisms of miR-15a/16 in the pathogenesis of multiple myeloma (MM). We found that miR-15a/16 was down-regulated in bone marrow-derived mononuclear cells (BM-MNCs) of newly diagnosed patien...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2016.08.013
更新日期：2016-10-01 00:00:00
abstract：:We compared 2-[fluorine-18] fluoro-2-deoxy-d-glucose PET-CT and contrast-enhanced computed tomography (CECT) in 62 consecutive patients with newly diagnosed Hodgkin Lymphoma (HL), aiming to provide evidences that may spare CECT from the staging procedures of HL patients. Among a total of 1448 nodal sites examined, dis...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2018.11.018
更新日期：2019-01-01 00:00:00
abstract：:1,25-Dihydroxyvitamin D3 (1,25D) induces differentiation of myeloid leukemia cells, but resistant cells are also encountered. We studied the mechanistic basis for the resistance in a model system using enhancers of 1,25D, the antioxidant carnosic acid and a kinase inhibitor SB202190. Knock-down (KD) of JNK2p54 unexpec...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2009.03.003
更新日期：2009-10-01 00:00:00
abstract：:The aim of the study was to investigate the expression of MIP-1 alpha and sclerostin in bone marrow of patients with multiple myeloma (MM), the possible association of the sclerostin and MIP-1 alpha with MBD and the clinical characteristics. 53 patients (29 M, 24 F), median age 64 years was studied. MIP-1 alpha, scler...
journal_title：Leukemia research
pub_type： 杂志文章
doi：10.1016/j.leukres.2014.02.010
更新日期：2014-05-01 00:00:00
