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 been shown that this protein is regulated by the transcription factor hypoxia inducible factor-1α (HIF-1α), which is overexpressed in several tumors including NHL, and the overexpression of both proteins may result in resistance to chemotherapy. We investigated the role of HIF-1α in resistance to chemotherapy via the induction of Bcl-xL expression in NHL cell lines, using a pharmacological modulation of HIF-1α. Our data showed that treating Ramos cells with ethyl 3,4-dihydroxybenzoate, an inhibitor of prolyl hydroxylase, induces accumulation of HIF-1α and this correlates with an increase of Bcl-xL as well as resistance to apoptosis after exposure to chemotherapeutics drugs. In contrast, the treatment of Ramos cells with 2-methoxyestradiol, an inhibitor of HIF-1α activity, induced down-regulation of Bcl-xL expression, and this correlated with the sensitization of tumor cells to chemotherapeutic drugs. These data demonstrate that up-regulation of the anti-apoptotic protein Bcl-xL in NHL cells correlates with HIF-1α expression and activity, through which a phenotype of chemoresistance is induced.
journal_name
Leuk Lymphomajournal_title
Leukemia & lymphomaauthors
Hernandez-Luna MA,Rocha-Zavaleta L,Vega MI,Huerta-Yepez Sdoi
10.3109/10428194.2012.733874subject
Has Abstractpub_date
2013-05-01 00:00:00pages
1048-55issue
5eissn
1042-8194issn
1029-2403journal_volume
54pub_type
杂志文章abstract::The prognostic importance of inhomogeneities on magnetic resonance imaging (MRI) in non-Hodgkin lymphomas (NHL) was evaluated. Forty-six consecutive patients with high-grade NHL were examined and, for comparison purposes, 13 patients with low-grade NHL. The degree of inhomogeneity was measured with a quantitative meth...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199709055587
更新日期:1997-02-01 00:00:00
abstract::Non-Hodgkin's lymphoma (NHL) is infrequently diagnosed during pregnancy. Most NHL's complicating pregnancy are aggressive and disseminated. This presentation together with the possible teratogenecity of diagnostic methods dictate a limited staging workup during pregnancy. Although prognosis had been reported to be poo...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199409049697
更新日期:1994-08-01 00:00:00
abstract::In order to assess the contribution of FC to the diagnosis of lymph node disorders we retrospectively compared the pathological and the FC diagnosis made in 118 consecutive lymph node biopsies. Pathological diagnosis included non malignant conditions (n = 43), B-cell Non Hodgkin lymphoma (NHL) (n = 30), T-cell NHL (1 ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190310001609906
更新日期:2004-08-01 00:00:00
abstract::In ninety-three cases of newly diagnosed acute myeloid leukaemia (AML) we investigated the importance to short- and long term clinical outcome of the in vitro short term leukaemia cell survival as measured by a 4-day MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide)-assay. In 67 patients treated by i...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199909167393
更新日期:1999-01-01 00:00:00
abstract::Two patients presented with anasarca, fevers and sweats. Subsequent evaluation revealed aggressive lymphoproliferative disease. Both patients were treated with CHOP chemotherapy. One patient responded with spontaneous, vigorous diuresis and complete resolution of the edema. She relapsed two months later with recurrent...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428190009087034
更新日期:2000-07-01 00:00:00
abstract::The aim of the present study was to evaluate the feasibility and response of the Dexa-BEAM regimen as a salvage therapy followed by high-dose chemotherapy (HDCT) with peripheral blood stem cell transplantation (PBCST) in responding patients with high-grade relapsed or resistant aggressive non-Hodgkin's lymphoma (NHL)....
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199909058430
更新日期:1999-04-01 00:00:00
abstract::The mammalian target of rapamycin (mTOR) is an important protein kinase regulating cell survival and apoptosis. To determine whether genetic variations in mTOR are associated with risk of acute lymphoblastic leukemia (ALL) in Chinese children, we genotyped two tag single nucleotide poymorphisms (SNPs) in mTOR (rs2536 ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2011.628062
更新日期:2012-05-01 00:00:00
abstract::A possible role for DNA mismatch repair defects and microsatellite instability (MSI) in the pathogenesis of a number of B-cell lymphoproliferative disorders has recently been debated. To gain further insight into the impact of MSI on B-CLL, we evaluated samples from a series of 982 patients using the mono-satellite ma...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190701361844
更新日期:2007-07-01 00:00:00
abstract::Hematopoietic progenitors can be expanded ex vivo in the presence of various cytokine combinations. Since normal early progenitor or stem cells persist in the blood and bone marrow of patients with Philadelphia chromosome [Ph]-positive chronic myeloid leukaemia (CML), the selection of normal (Ph-negative) progenitor c...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199809059255
更新日期:1998-12-01 00:00:00
abstract::The induction of apoptosis following topoisomerase inhibitors proceeds in at least three distinct steps: (1) induction of cleavable complexes (potentially lethal damage), (2) topoisomerase-induced DNA damage, and (3) a presently unknown sequence of events that must either lead to cell cycle arrest (G2-block, different...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199409051674
更新日期:1994-09-01 00:00:00
abstract::Myelofibrosis with myeloid metaplasia (MMM) is a clonal stem cell disorder that is characterized by florid bone marrow stromal reaction including collagen fibrosis, osteosclerosis, and angiogenesis. Almost all patients with MMM display increased bone marrow microvessel density (MVD) and the extent is among the highest...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190400003267
更新日期:2004-12-01 00:00:00
abstract::Thirteen patients (pts) with highly refractory acute myeloid leukemia (AML) 10 pts with de novo AML and 3 with blast crisis of chronic myeloid leukemia were treated with carboplatin (CP) 150 mg/m2/day through continuous IV infusion for 7 consecutive days. Seven of them received CP at least as third or more line therap...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199409049729
更新日期:1994-10-01 00:00:00
abstract::Thalidomide is thought to have anti-angiogenic and immunomodulatory properties, including suppression of tumor necrosis factor-alpha, effects on interleukins and interferons, down-regulation of some cell adhesion molecules, and changes in the proportion of lymphocyte subsets. It is unclear whether the clinical respons...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190500078300
更新日期:2005-07-01 00:00:00
abstract::Previous studies on the association of Thymidylate synthase (TYMS) polymorphisms with risk of hematological malignancies have produced conflicting results. The purpose of this meta-analysis was to define the effect of TYMS 5'-untranslated enhanced region (TSER) and 3'-untranslated region (TS3'-UTR) polymorphisms on th...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428194.2011.649477
更新日期:2012-07-01 00:00:00
abstract::Isolated central nervous system (CNS) relapse was evaluated in terms of incidence, risk factors, and outcome in a consecutive cohort of 175 patients with aggressive non-Hodgkin's lymphoma in which no case of lymphoblastic or Burkitt's lymphoma was encountered. All these patients had obtained a complete remission with ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199909058415
更新日期:1999-02-01 00:00:00
abstract::Relapse represents the main cause of treatment failure after allogeneic stem cell transplant (allo-SCT). The detection of minimal residual disease (MRD) by multiparametric flow cytometry (MFC), chimerism, cytogenetics and molecular analysis may be critical to prevent relapse. Therefore, we assessed the overall agreeme...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2013.789508
更新日期:2013-12-01 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::Morbidity, mortality and discomfort related to gastrectomy has led some investigators to treat patients with stage I-II primary gastric high-grade lymphoma (PGL) with a conservative strategy. Here we report a retrospective series of 21 patients with PGL treated with primary chemotherapy alone or followed by radiation ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199909058457
更新日期:1999-05-01 00:00:00
abstract::ZAP-70 has emerged as a protein of potential prognostic importance in chronic lymphocytic leukemia (CLL) following gene expression profiling which compared the 2 well established prognostic sub-sets, those with unmutated and mutated IgVH genes. This protein tyrosine kinase (PTK), known to be of importance in T and NK ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/09638280500260079
更新日期:2005-12-01 00:00:00
abstract::Accumulating evidence support a role for hepatitis C virus (HCV) in the pathogenesis of human lymphoproliferative disorders. Clonal expansions of B lymphocytes have been prevalently detected in the bone marrow, in the liver and in the peripheral blood of HCV-infected patients. Epidemiologic studies have associated HCV...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190290016845
更新日期:2002-04-01 00:00:00
abstract::Arsenic trioxide (As2O3) is currently employed as a treatment for relapsed acute promyelocytic leukemia (APL), where it can induce remission in greater than 90% of patients, but is ineffective in patients with non-APL acute myeloid leukemia (AML). As2O3 induces apoptosis in APL cells through mechanisms dependent and i...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190802353617
更新日期:2008-10-01 00:00:00
abstract::Immunophenotypic analysis was performed in 53 cases of B chronic lymphocytic leukemia using a large panel of monoclonal antibodies recognizing B, T, activation and myeloid antigens. Our results showed four patterns of reactivity: (a) several molecules were constantly expressed: CD19, CD20, CD24, CD37, HLA-DR, mu heavy...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199109103379
更新日期:1991-01-01 00:00:00
abstract::The objective of this article was to investigate the relationship between IRF-3 gene polymorphisms and the susceptibility and prognosis of CLL. Between January 2011 and August 2012, 108 CLL patients and 112 healthy were enrolled in the study. DHPLC and Shesis software were applied in our study. In rs7251, CG genotype ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2016.1193858
更新日期:2017-03-01 00:00:00
abstract::The management of lymphoma in patients with primary immunodeficiency (PID) is challenging because of its poor prognosis and complex therapeutic approaches. We conducted a systematic literature review of case-reports, case-series, and cohorts indexed in MEDLINE reporting the association of lymphoma and PID. One hundred...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2019.1672056
更新日期:2020-02-01 00:00:00
abstract::The natural history of the chronic phase (CP) of chronic myeloid leukemia (CML) and the high response rates achieved with BCR-ABL inhibitor therapy necessitate long-term evaluation of survival-based outcome measures. Prior to the availability of long-term BCR-ABL inhibitor data, short-term surrogate end points predict...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428194.2013.772607
更新日期:2013-10-01 00:00:00
abstract::In a prospective multicenter study 68 out of 158 patients with HIV infection and malignant lymphoma were assigned to a risk-adapted induction therapy using the following algorithm: High-risk patients fulfilled 2 of 3 criteria: T4 lymphocytes <50/microL; WHO activity index 3 or 4; pre-existing AIDS-defining opportunist...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章,多中心研究
doi:10.3109/10428199809058386
更新日期:1998-03-01 00:00:00
abstract::Hepatocyte growth factor (HGF) is a polypeptide that stimulates proliferation, motility, and morphogenesis of various cells, particularly epithelial cells. There is considerable evidence that HGF is a regulator in hemopoiesis not only in mice but also in humans. In mice, HGF and c-met (its receptor) mRNA are coexpress...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199609054832
更新日期:1996-10-01 00:00:00
abstract::Clinical observation and laboratory evidence suggest that immune mechanisms play an important role in the natural control of evolution of the Ph+ clone in chronic phase as well as during progression of chronic myelogenous leukemia (CML). The understanding of these mechanisms could facilitate development of innovative ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428190009089429
更新日期:2000-04-01 00:00:00
abstract::Six patients with Waldenström's macroglobulinemia (WM) resistant to previous 2-chlorodeoxyadenosine (2-CdA) therapy were treated with fludarabine. Both initial and subsequent therapy was administered according to the most widely used protocols. The median number of 2-CdA cycles given to the patients was 3.7 (range 2-5...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190290006161
更新日期:2002-02-01 00:00:00
abstract::We examined the effect of high-dose methylprednisolone (HDMP) on blast reduction rate and compared it to conventional dose steroid treatment, administered during the first 7+ days of the induction remission period in patients with acute lymphoblastic leukemia (ALL). In our previous randomized study, the event free sur...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1080/1042819021000055048
更新日期:2003-03-01 00:00:00