Abstract:
:Myelofibrosis (MF; primary or post-essential thrombocythemia/polycythemia vera) is incurable clonal myeloproliferative disorder, with no effective treatment. Epigenetic changes play an important role in cancer pathogenesis through transcriptional silencing of critical tumor suppressor genes. We conducted a phase-II study to evaluate the activity of DNA methyltransferase inhibitor, 5-azacitidine, in patients with MF. Thirty-four patients (76% previously treated) received 5-azacitidine at 75 mg/m(2) subcutaneously daily for 7 days, every 4 weeks. Twelve (35%) patients had abnormal cytogenetics and 19 (70%) of 27 evaluable patients had JAK2(V617F) mutation. Responses occurred in 8 (24%) patients after a median of 5 months (range, 3-10). Partial response occurred in 1 (3%) patient (duration 22+ months) and clinical improvement in 7 (21%) patients (median duration 4 months; range, 2-8.5). Myelosuppression was the major adverse effect, with grade 3-4 neutropenia in 10 (29%) patients. Global DNA methylation assessed by the long interspersed nucleotide element (LINE) bisulfite/pyrosequencing assay decreased from 53% pretherapy to 44% on day 14 (P=0.0014) and returned to 50% at the end of the first 28-day cycle (P=0.016). 5-azacitidine is relatively well tolerated and results in induction of global hypomethylation in patients with MF, but results in limited clinical activity.
journal_name
Leukemiajournal_title
Leukemiaauthors
Quintás-Cardama A,Tong W,Kantarjian H,Thomas D,Ravandi F,Kornblau S,Manshouri T,Cortes JE,Garcia-Manero G,Verstovsek Sdoi
10.1038/leu.2008.91subject
Has Abstractpub_date
2008-05-01 00:00:00pages
965-70issue
5eissn
0887-6924issn
1476-5551pii
leu200891journal_volume
22pub_type
杂志文章相关文献
LEUKEMIA文献大全abstract::The occurrence of leukemia in a gene therapy trial for SCID-X1 has highlighted insertional mutagenesis as an adverse effect. Although retroviral integration near the T-cell acute lymphoblastic leukemia (T-ALL) oncogene LIM-only protein 2 (LMO2) appears to be a common event, it is unclear why LMO2 was preferentially ta...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2404563
更新日期:2007-04-01 00:00:00
abstract::Specific myeloid-related and inositide-specific gene mutations can be linked to myelodysplastic syndromes (MDS) pathogenesis and therapy. Here, 44 higher-risk MDS patients were treated with azacitidine and lenalidomide and mutations analyses were performed at baseline and during the therapy. Results were then correlat...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/s41375-019-0416-x
更新日期:2019-09-01 00:00:00
abstract::Molecular rearrangements of Ph1 chromosome, the hallmark of CML, are clustered in a 5.8-kb DNA segment, the so-called breakpoint cluster region (bcr) of the phl gene that is localized to chromosome 22q11. In Ph1-positive (Ph1+) ALLs, the rearrangements have been shown to involve either the 5.8-kb bcr (called bcr+) or ...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00
abstract::Recent work suggests that chronic lymphocytic leukemia (B-CLL) expressing unmutated immunoglobulin V genes could correspond to the proliferation of naive B cells whereas those expressing mutated genes, may correspond to the proliferation of post-germinal center B cells. Current data from gene profiling expression have...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2402731
更新日期:2002-12-01 00:00:00
abstract::Imatinib is highly effective in newly diagnosed, but not in relapsed, Philadelphia chromosome positive acute lymphoblastic leukemia (Ph+ ALL). BCR-ABL tyrosine kinase domain (TKD) mutations are associated with acquired imatinib resistance, but their role in primary resistance is uncertain. Using highly sensitive ligat...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/leu.2012.5
更新日期:2012-07-01 00:00:00
abstract::It is well documented that the calcitonin gene area in the short arm of chromosome 11 is hypermethylated in most acute leukemias as well as in chronic lymphatic leukemia. In contrast, the gene is normally methylated during the chronic phase of the chronic myeloid leukemia but turns hypermethylated as the disease escal...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract::The discovery of almost identical or 'stereotyped' B-cell receptor immunoglobulins (BcR IG) among unrelated patients with chronic lymphocytic leukemia (CLL) cemented the idea of antigen selection in disease ontogeny and evolution. The systematic analysis of the stereotypy phenomenon in CLL revealed that around one-thi...
journal_title:Leukemia
pub_type: 杂志文章,评审
doi:10.1038/leu.2016.322
更新日期:2017-02-01 00:00:00
abstract::Myeloid growth factors, such as granulocyte colony-stimulating factor and granulocyte-macrophage colony-stimulating factor, have been used to decrease the duration of chemotherapy-induced neutropenia and thereby reduce the incidence and severity of infections in various regimens used to treat acute myeloid leukemia an...
journal_title:Leukemia
pub_type: 杂志文章,评审
doi:10.1038/sj.leu.2404152
更新日期:2006-04-01 00:00:00
abstract::To determine the frequency and prognostic significance of recently described genetic lesions in pediatric acute lymphoblastic leukemia (ALL), all cases with available leukemic cell samples treated on St Jude Study XII were analyzed by molecular techniques for alterations of the p16, MLL and ETV6 genes. Homozygous p16 ...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2400779
更新日期:1997-08-01 00:00:00
abstract::The growth of B-cell precursor acute lymphoblastic leukemic (BCP ALL) cells in vitro is dependent on interactions with bone marrow (BM) stromal cells. We have recently demonstrated that the rate of cell division of BCP ALL cells increases when cultured in direct contact with BM stromal cells. In this study we describe...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::CD79 is a heterodimeric molecule comprising two polypeptide chains, B29 (CD79b) and mb-1 (CD79a). It is physically linked in the surface of B cells to membrane immunoglobulin, forming the B cell antigen receptor complex. Expression of the mb-1 (CD79a) chain has been studied in leukaemias and shown to be present in mos...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::Immunofluorescent staining of peripheral blood mononuclear cells with the monoclonal antibody anti-HC2 combined with phase microscopic examination identified leukemic hairy cells in nine of 13 patients (69%) evaluated at Memorial Hospital prior to treatment with recombinant alpha-interferon (rIFN-alpha A). The remaini...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1987-04-01 00:00:00
abstract::Tumorigenesis can be considered as pathologically misappropriated tissue regeneration. In this review we will address some unresolved issues that support this concept. First, we will address the issue of the identity of cancer-initiating cells and the presence of cancer stem cells in growing tumors. We will also ask a...
journal_title:Leukemia
pub_type: 杂志文章,评审
doi:10.1038/s41375-018-0294-7
更新日期:2018-12-01 00:00:00
abstract::The value of the hypervariable X-linked probe M27 beta for use in the analysis of X-chromosome inactivation patterns in normal blood and bone marrow cells and in the assessment of clonality in acute myeloid leukemia (AML) blast cells has been determined. By electrophoresing samples for 30 h, heterozygosity of the M27 ...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract::Structural rearrangements involving the short arm of chromosome 12 occur in 10% of cases of childhood acute lymphoid leukemia. The translocation t(12;17)(p13;q21), an uncommon 12p abnormality, was identified in five of 2620 cases (0.2%) successfully karyotyped by the Pediatric Oncology Group or St Jude Children's Rese...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract::A polymerase chain reaction analysis of biopsy specimens from a total of 52 patients with Hodgkin's disease has revealed the presence of the t(14;18) chromosomal translocation in 14 cases (28%). Twelve involved the major breakpoint region and two included the minor cluster region of the bcl-2 gene. Direct sequencing o...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract::Mantle cell lymphoma (MCL) is a moderately aggressive B-cell lymphoma that responds poorly to currently used therapeutic protocols. In order to identify tumour characteristics that improve the understanding of biology of MCL, analysis of oligonucleotide microarrays were used to define specific gene expression profiles...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2403057
更新日期:2003-09-01 00:00:00
abstract::To discriminate with molecular-cytogenetic resolution between 3q26.2 breakpoint, associated to various myeloproliferative disorders, and 3q27 breakpoint, recurrent in several types of non-Hodgkin lymphoma, we tested the feasibility of using a yeast artificial chromosome, YAC clone H10, mapped on 3q26.3. Fluorescent in...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1996-02-01 00:00:00
abstract::Eight new cases (five adults and three children) of acute leukemia characterized by the presence in bone marrow cells of a t(4;11)(q21;q23)and one similar case, a child, with a t(1;11)(p32;q23) are reported. All patients were diagnosed as having acute lymphoblastic leukemia (ALL) with high-risk features. Immunological...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::Nasal-type natural killer (NK) cell lymphoma is an infrequent aggressive malignant disease with very poor prognosis. We aimed to explore the possible role of the transcription factor STAT3 in the pathophysiology of this malignancy, as it was involved in oncogenesis and chemoresistance. For this, we established and cha...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/leu.2009.91
更新日期:2009-09-01 00:00:00
abstract::In the past years, the genomes of thousands of tumors have been elucidated. To date however, our knowledge on somatic gene alterations in normal cells is very limited. In this study, we demonstrate that tetanus-specific human memory B lymphocytes carry a substantial number of somatic mutations in the coding regions of...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/s41375-018-0289-4
更新日期:2019-05-01 00:00:00
abstract::Bortezomib is a potent drug for the treatment of multiple myeloma. Its anti-tumor activity is mediated by proteasome inhibition leading to decreased cell proliferation and induction of apoptosis. However, an unimpaired proteasomal function plays a crucial role for the induction of anti-tumor immunity by dendritic cell...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2404734
更新日期:2007-07-01 00:00:00
abstract::All-trans-retinoic (ATRA) treatment of patients with acute promyelocytic leukemia results in differentiation of the malignant cells and a high complete remission rate. ATRA treatment induced granulocytic differentiation in HL-60 cells as assessed by nitroblue tetrazolium (NBT) reduction, but had no effect on non-speci...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1993-03-01 00:00:00
abstract::Adhesion molecules and stromal cell-derived factor-1 (SDF-1)/CXCR4 signaling play key role in homing and mobilization of hematopoietic progenitor (HPC) and hematopoietic cancer clonogenic cells (HCC). High expression of VLA-4 is required for homing of HPC and HCC, whereas downregulation of these molecules is required ...
journal_title:Leukemia
pub_type: 杂志文章,评审
doi:10.1038/sj.leu.2403173
更新日期:2004-01-01 00:00:00
abstract::ATP-binding-cassette (ABC) transporters are evolutionary extremely well-conserved transmembrane proteins that are highly expressed in hematopoietic stem cells (HSCs). The physiological function in human stem cells is believed to be protection against genetic damage caused by both environmental and naturally occurring ...
journal_title:Leukemia
pub_type: 杂志文章,评审
doi:10.1038/sj.leu.2404859
更新日期:2007-10-01 00:00:00
abstract::Genomic analyses of chronic lymphocytic leukemia (CLL) identified somatic mutations and associations of clonal diversity with adverse outcomes. Clonal evolution likely has therapeutic implications but its dynamic is less well studied. We studied clonal composition and prognostic value of seven recurrently mutated driv...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/s41375-018-0215-9
更新日期:2019-02-01 00:00:00
abstract::Synergistic molecular vulnerabilities enhancing hypomethylating agents in myeloid malignancies have remained elusive. RNA-interference drug modifier screens identified antiapoptotic BCL-2 family members as potent 5-Azacytidine-sensitizing targets. In further dissecting BCL-XL, BCL-2 and MCL-1 contribution to 5-Azacyti...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/leu.2014.44
更新日期:2014-08-01 00:00:00
abstract::We previously reported the fusion of the TEL gene to the Syk gene in myelodysplastic syndrome with t(9;12)(q22;p12). TEL-Syk fusion transformed interleukin-3 (IL-3)-dependent murine hematopoietic cell line BaF3 to growth factor independence. Here, we investigate the intracellular signal transduction of the stable tran...
journal_title:Leukemia
pub_type: 杂志文章
doi:10.1038/sj.leu.2403266
更新日期:2004-03-01 00:00:00
abstract::A human acute lymphoblastic leukemia (ALL) cell line, BALM-9, was established from the peripheral blood specimen of a immunoglobin (lg) phenotype, the established BALM-9 cell line expressed both kappa and lambda light (L) chains simultaneously in a range of 30-80%. Two-color flow cytometric analysis demonstrated that ...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::About half of the patients with follicular lymphoma will develop an aggressive B cell lymphoma with morphological changes in growth pattern and cellular morphology. Changes of the immunophenotype, especially of the expression of immunoglobulin (Ig) have been documented less frequently. Multiple tumor samples of two pa...
journal_title:Leukemia
pub_type: 杂志文章
doi:
更新日期:1995-10-01 00:00:00