Abstract:
:B-cell post-transplant lymphoproliferative disorders (PTLD) are classified as early lesions, polymorphic lymphomas (P-PTLD) and monomorphic lymphomas (M-PTLD). These morphologic categories are thought to reflect a biologic continuum, although supporting genetic data are lacking. To gain better insights into PTLD pathogenesis, we characterized the phenotypes, immunoglobulin (Ig) gene alterations and non-Ig gene (BCL6, RhoH/TTF, c-MYC, PAX5, CIITA, BCL7A, PIM1) mutations of 21 PTLD, including an IM-like lesion, 8 P-PTLD and 12 M-PTLD. Gene expression profile analysis was also performed in 12 cases. All PTLD with clonal Ig rearrangements showed evidence of germinal centre (GC) transit based on the analysis of Ig and BCL6 gene mutations, and 74% had a non-GC phenotype (BCL6 +/- MUM1+). Although surface Ig abnormalities were seen in 6/19 (32%) PTLD, only three showed 'crippling' Ig mutations indicating other etiologies for loss of the B-cell receptor. Aberrant somatic hypermutation (ASHM) was almost exclusively observed in M-PTLD (8/12 vs. 1/8 P-PTLD) and all three recurrent cases analysed showed additional mutations in genes targeted by ASHM. Gene expression analysis showed distinct clustering of PTLD compared to B-cell non-Hodgkin lymphomas (B-NHL) without segregation of P-PTLD from non-GC M-PTLD or EBV+ from EBV- PTLD. The gene expression pattern of PTLD appeared more related to that of memory and activated B-cells. Together, our results suggest that PTLD represent a distinct type of B-NHL deriving from an antigen experienced B-cell, whose evolution is associated with accrual of genetic lesions.
journal_name
Hematol Oncoljournal_title
Hematological oncologyauthors
Vakiani E,Basso K,Klein U,Mansukhani MM,Narayan G,Smith PM,Murty VV,Dalla-Favera R,Pasqualucci L,Bhagat Gdoi
10.1002/hon.859subject
Has Abstractpub_date
2008-12-01 00:00:00pages
199-211issue
4eissn
0278-0232issn
1099-1069journal_volume
26pub_type
杂志文章abstract::In order to develop an effective immunotherapy for hematological malignancies, we investigated the applicability of class II transactivator (CIITA), which had been demonstrated to regulate the expression of MHC class II (MHC-II) by assembling the transcription factors of MHC-II molecules, for immunotherapy by potentia...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/(sici)1099-1069(199912)17:4<149::aid-hon64
更新日期:1999-12-01 00:00:00
abstract::Follicular lymphoma is the most common indolent non-Hodgkin lymphoma. Survival has improved over the last several decades, mainly because of the incorporation of the anti-CD20 antibody rituximab into preexisting or rediscovered agents. The disease has a relapsing and remitting pattern, coupled with a risk of transform...
journal_title:Hematological oncology
pub_type: 杂志文章,评审
doi:10.1002/hon.2711
更新日期:2020-08-01 00:00:00
abstract::The aim of this article is to meta-analyse published data about the detection rate (DR) of fluorine-18-fluorodeoxyglucose ((18) F-FDG) positron emission tomography (PET) and PET/computed tomography (CT) in the evaluation of patients with marginal zone lymphoma of the mucosa-associated lymphoid tissue (MALT). A compreh...
journal_title:Hematological oncology
pub_type: 杂志文章,meta分析,评审
doi:10.1002/hon.2152
更新日期:2015-09-01 00:00:00
abstract::Post-transplant lymphoproliferative disorders of T-cell origin are quite uncommon, and the vast majority represent neoplasms of mature, post-thymic T- or natural killer cells. Here, we report a rare case of T-cell acute lymphoblastic leukaemia (T-ALL), which occurred in an 18-year-old man who had undergone three liver...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2016
更新日期:2013-03-01 00:00:00
abstract::Cytotoxic and DNA synthesis inhibitory effects of several iron chelators with different physicochemical properties have been tested in four myeloid leukaemic cell lines (U937, K562, ML2 and HL60). The small lipophilic chelators 8-hydroxyquinoline, tropolone and omadine at 2 X 10(-5) M, caused substantial inhibition of...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900040303
更新日期:1986-07-01 00:00:00
abstract::These are the final results of the Ofatumumab in MALT lymphoma study (O-MA 1), a pilot phase II trial evaluating the capacity and safety of ofatumumab to induce objective responses in patients with Helicobacter pylori eradication refractory or extragastric MALT lymphoma. Ofatumumab was given at 4 weekly doses (1000 mg...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2454
更新日期:2018-02-01 00:00:00
abstract::The goal of current management of patients with chronic phase chronic myeloid leukemia (CML) is to reach treatment-free remission with sustained deep molecular remission (DMR) being the prerequisite therefor. Second-generation tyrosine kinase inhibitors can induce deeper and faster remission than imatinib, but are oft...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2786
更新日期:2020-12-01 00:00:00
abstract::Based on results of two pilot trials, lenalidomide (LEN) was found to be active and safe as monotherapy and showed an increased response rate of 80% in combination with rituximab (R) for patients with mucosa-associated lymphoid tissue (MALT) lymphoma. While initial results were promising, there are currently no data o...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2647
更新日期:2019-10-01 00:00:00
abstract::Several studies have shown that adding rituximab to CHOP (cyclophosphamide, doxorubicin, vincristine, prednisolone) or reducing the interval between chemotherapy cycles from 3 weeks to 2 weeks improves survival in patients with diffuse large B-cell lymphoma (DLBCL). These studies prompted our group (GOTEL) to evaluate...
journal_title:Hematological oncology
pub_type: 杂志文章,多中心研究
doi:10.1002/hon.829
更新日期:2008-03-01 00:00:00
abstract::The aim of this study was to explore the expression of retinoblastoma protein and EBV status in a cohort of cases of Hodgkin's disease from South Africa. Seventy one cases of Hodgkin's disease were accessed over a 6-year period and were classified according to the Rye Classification. Relevant sections were stained wit...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/(sici)1099-1069(199711)15:4<191::aid-hon61
更新日期:1997-11-01 00:00:00
abstract::Left ventricular stroke distance was measured by Doppler ultrasound in 10 doxorubicin-treated and 10 control patients. Measurements were made 10 min, 2 h and 4 h after drug administration. Stroke distance (a linear analogue of stroke volume) increased significantly from 12.6 cm (S.D. 2.7) before and 12.5 cm (S.D. 2.7)...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900090107
更新日期:1991-01-01 00:00:00
abstract::The objective of this research was to characterize the venetoclax exposure-efficacy and exposure-safety relationships and determine its optimal dose in elderly patients with newly diagnosed acute myeloid leukemia (AML) receiving venetoclax in combination with low intensity therapies (hypomethylating agent [HMA; azacit...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2646
更新日期:2019-10-01 00:00:00
abstract::Acute myeloid leukaemia is a disease with unfavourable prognosis. The significance of various prognostic parameters is not fully understood. We studied 293 patients to examine the influence of ethnicity and molecular markers. The median survival for all patients was correlated with age, white blood cell count and kary...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2092
更新日期:2014-06-01 00:00:00
abstract::There have been some reports on a possible role of azacytidine (AZA) in the treatment of accelerated/blastic phase evolved from Philadelphia-negative myeloproliferative neoplasms (MPN-AP/BP), but results are conflicting. In this study, we analyzed a cohort of 39 patients with MPN-AP/BP treated frontline with AZA at th...
journal_title:Hematological oncology
pub_type: 杂志文章,多中心研究
doi:10.1002/hon.2635
更新日期:2019-08-01 00:00:00
abstract::In 2009, the four laboratories of the Fondazione Italiana Linfomi (FIL) minimal residual disease (MRD) Network started a collaborative effort to harmonize and standardize their methodologies at the national level, performing quality control (QC) rounds for follicular lymphoma (FL) and mantle cell lymphoma (MCL) MRD as...
journal_title:Hematological oncology
pub_type: 杂志文章,多中心研究
doi:10.1002/hon.2652
更新日期:2019-10-01 00:00:00
abstract::Smoking has been identified as a significant risk factor for acute myeloid leukaemia (AML). However, epidemiological evidence for the effect of smoking on the risk of AML among Asians is scarce. Here, we investigated the impact of smoking habits on the risk of AML by conducting a pooled analysis of 9 population-based ...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2457
更新日期:2018-02-01 00:00:00
abstract::The glucose-6-phosphatase (G-6-Pase) enzyme cytochemical reaction was successfully applied on lymph node imprints, after introducing the appropriate modifications related to fixation and to composition of the substrate solutions. Using this method we studied the G-6-Pase cytochemical profile on lymph node imprint prep...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900040403
更新日期:1986-10-01 00:00:00
abstract::Abdominal presentations of pediatric NHL are rarely amenable to complete surgical resection. Chemotherapy is the hallmark of treatment for pediatric NHL. Treatment of various types of this disease including intra-abdominal NHL in children with various protocols have not exceeded 54 per cent two-year disease-free survi...
journal_title:Hematological oncology
pub_type: 临床试验,杂志文章
doi:10.1002/hon.2900090414
更新日期:1991-07-01 00:00:00
abstract::Our aim was to evaluate whether quality of life (QOL) scores at diagnosis predict survival among patients with aggressive lymphoma. Newly diagnosed lymphoma patients were prospectively enrolled within 9 months of diagnosis in the University of Iowa/Mayo Clinic SPORE and systematically followed for event-free and overa...
journal_title:Hematological oncology
pub_type: 临床试验,杂志文章
doi:10.1002/hon.2522
更新日期:2018-12-01 00:00:00
abstract::The novel human pre-B cell line OZ was established from a patient with an aggressive form of non-Hodgkin's lymphoma. Karyotypic analysis of both the primary tumour and OZ cells revealed several marker chromosomes, including the t(14;18)(q32;q21) translocation, which involves the Bcl-2 gene, and alterations on chromoso...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/(sici)1099-1069(199708)15:3<109::aid-hon60
更新日期:1997-08-01 00:00:00
abstract::We compare 30 biopsies each of Pattern 1 angioimmunoblastic T-cell lymphoma (AITL1) and reactive lymphoid hyperplasia (RLH) by immunohistology, in-situ hybridization for Epstein-Barr virus-encoded RNA and T-cell receptor-γ (TRG)-clonality. AITL1 cases, more often than RLH controls, were older [median ages 61 (range 23...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2116
更新日期:2014-09-01 00:00:00
abstract::Follicular lymphoma is characterized by a good response to immunochemotherapy (ICT). However, a small percentage of patients responds poorly to treatment and seems to have a worse outcome. This study attempted to identify the predictive factors and outcome of refractoriness to first-line ICT. All patients diagnosed wi...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2378
更新日期:2017-12-01 00:00:00
abstract::Delayed platelet recovery (DPR) despite prompt neutrophil engraftment is frequently observed after allogeneic hematopoietic stem cell transplantation (HSCT). However, few studies have evaluated the risk factors and long-term outcome. Therefore, we retrospectively analysed 219 adult patients who underwent their first a...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2427
更新日期:2018-02-01 00:00:00
abstract::One hundred and twenty-five cases of acute myeloid leukemia (AML) were reviewed for the presence of Auer rods by two peroxidase methods. The percentage of Auer rods recognized by Wright-Giemsa (WG) staining was 20.8% but three times higher by peroxidase staining techniques using either benzidine base as a substrate (P...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900050306
更新日期:1987-07-01 00:00:00
abstract::Composite plasma cell neoplasm (PCN) and low grade B-cell lymphoma (B-NHL) in the bone marrow are uncommon and raise the differential diagnosis of B-NHL with plasmacytic differentiation and PCN with lymphoplasmacytic morphology. This can be a challenging differential diagnosis, and the distinctions are important becau...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2129
更新日期:2015-03-01 00:00:00
abstract::Some patients with cerebriform T-cell lymphoma (CTCL) undergo morphologic transformation to a large cell lymphoma. From a series of 113 patients with CTCL, 22 patients were identified with transformed CTCL. Stages of involvement at diagnosis were: I (seven), II (four), III (four), IV (seven). Nine patients had transfo...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900080406
更新日期:1990-07-01 00:00:00
abstract::The cause of myelosuppression in hairy cell leukemia (HCL) has been ascribed to a reduction of the circulating progenitor cell (CPC) compartment and to suppression of hematopoiesis by TNF-alpha. The present study was performed to evaluate the inhibitory effect of hairy cells (HCs) and a possible lack of hematopoietic ...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900110207
更新日期:1993-03-01 00:00:00
abstract::Mantle cell lymphoma (MCL) is a lymphoproliferative disorder characterized by the t(11;14)(q13;q32) CCND1/IGH translocation. This lymphoma is however extremely heterogeneous in terms of molecular alterations. Moreover, the course of the disease can vary greatly between indolent forms with slow progression and aggressi...
journal_title:Hematological oncology
pub_type: 杂志文章,随机对照试验
doi:10.1002/hon.2750
更新日期:2020-10-01 00:00:00
abstract::The effects of N4-behenoyl-1-beta-D-arabinofuranosylcytosine (BH-AC) on the cell cycle of murine leukemic cells (L 1210 cells) were compared with those of 1-beta-D-arabinofuranosylcytosine (ara-C), known to be effective for acute leukemia. In a cytokinetic study, a combination of Feulgen microcytofluorometry and triti...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.2900030106
更新日期:1985-01-01 00:00:00
abstract::Recent studies have suggested that chromosomal aberrations of the MYC gene locus indicate an unfavorable prognosis in diffuse large B-cell lymphoma (DLBCL). However, there have been few reports on MYC translocation in Chinese patients. One hundred and six cases of DLBCLs were analyzed using interphase fluorescent in s...
journal_title:Hematological oncology
pub_type: 杂志文章
doi:10.1002/hon.991
更新日期:2011-12-01 00:00:00