Abstract:
:A methodology for selection of the CD8 cell subset from the peripheral blood and bone marrow mononuclear cells was developed using anti-T8 (CD8) antibody and magnetic microspheres coated with anti-mouse IgG. Following optimization of antibody:cell binding ratio and microsphere:cell ratios, CD8(+)-cells in the peripheral blood and bone marrow were effectively removed, with an overall final recovery of 34.9% +/- 8.6%, and 56% +/- 8.5% respectively with complete recovery of stem cells and very little contamination with effector cells. CD8(+)-depleted cell preparations demonstrated a 3-4 fold increase in CFU-C and CFU-E colony formation over non-depleted preparations when stimulated with G-CSF, GM-CSF or IL-3 and erythropoietin. The largest increase in colony formation was evident when IL-3 was used to stimulate colony formation. Purified autologous CD8+ T-cells or culture supernatant from in vitro cultures of purified autologous CD8+ T-cells added back to CD8 depleted preparations, induced 20%-90% suppression of CFU-C and CFU-E colony formation in a dose dependent manner. Colony formation by CD34+ cells, purified by anti CD34 antibodies and magnetic microspheres, were also inhibited by either pure CD8(+)-cell populations or CD8-culture supernatant. Preliminary fractionation studies indicate that the inhibitory factor is a protein of > 50 kd. In contrast, when purified autologous CD4+ cells were added to purified CD34+ stem cells, an increase (< 50%) in colony formation was observed. These results, taken together, suggest that CD8+ T-cells are negative effectors of normal hematopoiesis whereas CD4+ T-cells function as positive effectors.
journal_name
Leuk Lymphomajournal_title
Leukemia & lymphomaauthors
Gazitt Y,He YJdoi
10.3109/10428199209049825keywords:
subject
Has Abstractpub_date
1992-09-01 00:00:00pages
117-27issue
1-2eissn
1042-8194issn
1029-2403journal_volume
8pub_type
杂志文章abstract::To clarify the incidence of leukoencephalopathy in patients with t(1;19) and their clinical characteristics, we studied 239 acute lymphoblastic leukemia (ALL) cases. The 1;19 translocation was found in 20 (8.5%) of the 239 children with ALL. Leukoencephalopathy occurred in 2 (10%) patients with t(1;19) during the earl...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199909093734
更新日期:1999-03-01 00:00:00
abstract::Bone marrow transplantation procedure has emerged as an effective treatment for hematological malignancies. However, recurrence of leukemia is still the major cause of treatment failure. Subsequent treatment in this category of patients, generally considered incurable, has not been yet standardized. At our institution...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199409051687
更新日期:1994-09-01 00:00:00
abstract::In a woman with chronic lymphocytic leukemia (CLL), a plasmacytoma developed on the back region after four years. CLL cases complicated with plasmacytoma are rare. In the present case, the plasmacytoma showed kappa cytoplasmic immunoglobulin (Ig), and the CLL showed gamma lambda surface Ig. To reveal the clonal origin...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428190009053555
更新日期:2000-09-01 00:00:00
abstract::Patients with early stage favorable Hodgkin's disease who relapse after extended field radiotherapy have satisfactory results. We retrospectively analysed patients with relapsed HD after initial radiation therapy alone to determine treatment outcome and prognostic factors. Nine-hundred and forty five patients in local...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190500178167
更新日期:2005-11-01 00:00:00
abstract::Systemic involvement in hairy cell leukemia (HCL), has rarely been reported but ocular involvement is extremely uncommon. We report an unusual ocular presentation of HCL due to panuveitis with dramatic improvement following treatment with 2-chlorodeoxyadenosine (2-CdA). ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199609052436
更新日期:1996-02-01 00:00:00
abstract::Murine monoclonal antibody (mAb) 7C11 binds to the same cell surface epitope as anti-APO-1 and anti-Fas and reacts specifically with cells transfected with a cDNA encoding the human Fas antigen. Furthermore, incubation with 7C11 causes death of hematopoietic cell lines that express APO-1/Fas but not APO-1/Fas-negative...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199509051703
更新日期:1995-03-01 00:00:00
abstract::To evaluate the prognostic features of Ph+ CML patients treated by allogeneic BMT or by IFN, we reviewed the data of 50 consecutive pts who were transplanted between 1984 and 1988 and of 180 consecutive patients who were assigned to continuous IFN treatment between 1986 and 1988. In the BMT group, Sokal's system predi...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章,多中心研究
doi:10.3109/10428199309047867
更新日期:1993-01-01 00:00:00
abstract::The frequency of ras gene mutations varies from 11 to 27% in AML populations from the United States and Europe but it seems that there is no study regarding the frequency of mutated N-ras gene in patients with AML in South America. In order to study the frequency of N-ras gene mutations (exons 1 and 2) in Brazilian pa...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199709039018
更新日期:1997-01-01 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::Involvement of the gastrointestinal (GI) tract by multiple myeloma (MM) is extremely rare. The small intestine and stomach are the most frequent sites of spread. We report 1 case of a 61-year-old woman who presented with clinical and radiographic features of an acute large bowel pseudo-obstruction. An abdominal comput...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190410001697322
更新日期:2004-09-01 00:00:00
abstract::We conducted a phase I clinical trial of a new combination of fludarabine and paclitaxel in which 19 patients with histologically confirmed recurrent low-grade non-Hodgkin's lymphoma (NHL) were treated at five dose levels. Fludarabine was administered intravenously by bolus for 5 days and paclitaxel was given by intra...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199709109160
更新日期:1997-06-01 00:00:00
abstract::The age-adjusted incidence of Hodgkin's lymphoma (HL) is markedly higher in Saudi Arabia than in the USA, and accounts for 10.5% of all neoplasias in children aged 15 years or older in Saudi Arabia. Epstein-Barr virus (EBV) infection has been suspected to cause high HL incidence in developing countries. To investigate...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190500286879
更新日期:2006-04-01 00:00:00
abstract::It is now known that syngeneic transplantation, T lymphocyte depletion and absence of graft-versus-host disease all increase the risk of relapse following allogeneic transplantation for the myeloid leukemias, both acute and chronic. Leukemia-specific immune responses appear to play a major role in the therapy of the m...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199309067922
更新日期:1993-11-01 00:00:00
abstract::Recent advances in the treatment of patients with non-Hodgkin lymphoma have driven a paradigm shift from standard chemotherapy to an ever-expanding choice of targeted agents and combinations. As an orally bioavailable immunomodulator with antineoplastic, immunologic, and antiproliferative activity in B-cell lymphoma, ...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428194.2016.1146949
更新日期:2016-07-01 00:00:00
abstract::The blast cells from up to 70% of patients with acute myeloblastic leukaemia exhibit a variable degree of autonomous growth in vitro, which is related to the production of autocrine growth factors. It has recently been established that patients with autonomous blast cell growth have both a lower remission rate and a h...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199509049761
更新日期:1995-01-01 00:00:00
abstract::Nodular lymphocyte predominant Hodgkin's lymphoma (NLPHL) is a rare variant of Hodgkin's lymphoma (HL) in children. Since specific immunohistochemical staining has become available, NLPHL can be separated from classical Hodgkin's lymphoma (cHL) more accurately. Scarce information is available about pediatric NLPHL tre...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428190600573291
更新日期:2006-08-01 00:00:00
abstract::The outcome of sixty-four patients with acute leukemia in first remission who had been treated with either bone marrow transplantation (BMT) or conventional chemotherapy was retrospectively evaluated (a median follow-up of 37 months). Among them, 26 patients (age range; 14-42 years) received allogeneic BMT from HLA-id...
journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
doi:10.3109/10428199209051015
更新日期:1992-11-01 00:00:00
abstract::Current understanding of molecular genetics enables the establishment of new categories based on pathogenesis. Philadelphia (Ph) chromosome-positive leukemia has been reclassified into two molecularly distinct subsets, and the leukemogenesis at the cell level might be linked to the molecular changes. Therefore, treatm...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199309148502
更新日期:1993-01-01 00:00:00
abstract::BRAF mutations have been shown to occur at a high frequency in melanoma and thyroid cancer, but also at lower frequencies in hematological malignancies. To assess the potential role of BRAF, we have sequenced exons 11 and 15 of BRAF in 138 cases with chronic lymphocytic leukemia (CLL) and 32 cases of B-cell prolymphoc...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2012.742525
更新日期:2013-06-01 00:00:00
abstract::Since etoposide interacts with the nuclear enzyme topoisomerase II, the drug concentrations in the malignant cells during chemotherapy may have clinical correlates. Plasma protein binding of etoposide is extensive (94%) and alterations of the non-proteinbound fraction affect pharmacokinetic behavior of the drug. The p...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199309148555
更新日期:1993-07-01 00:00:00
abstract::Plasma cell tumors show an increased incidence in HIV-positive patients. The cases reported in the literature suggest that plasma cell tumors occur in a younger age group than that encountered in the general population. Pathologically, many of these tumors show a plasmablastic morphology. Plasma cell tumors in HIV-pos...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428190500054566
更新日期:2005-07-01 00:00:00
abstract::The development of immune checkpoint inhibitors represents a major breakthrough in the field of cancer therapeutics. Pursuant to their success in melanoma and numerous solid tumor malignancies, these agents are being investigated in hematological malignancies including acute myelogenous leukemia (AML) and myelodysplas...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428194.2017.1344905
更新日期:2018-04-01 00:00:00
abstract::We evaluated the recovery of human hematopoietic progenitors in long-term bone marrow culture (LTBMC) initiated in tissue culture (TC) flasks to that in "Lifecell" bags, which are gas-permeable plastic bags in which feeder-layer cells cannot adhere. Cells were incubated in presence of IL-1 and IL-3. Our experiments re...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199309047901
更新日期:1993-01-01 00:00:00
abstract::Although associations between autoimmune disorders (AIs) and the development of myeloid neoplasms have been described, the pathologic features and natural history of these malignancies have not been well characterized. We evaluated whether patients with AIs with acute myeloid leukemia (AML) were similar in nature to p...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2012.736982
更新日期:2013-06-01 00:00:00
abstract::Although the association of bone marrow fibrosis with plasma cell dyscrasias has already been described in several reports, the close relationship between these entities still remains unclear. In this report we describe a patient with clinical and pathologic findings which initially suggested a diagnosis of myelofibro...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428199309148567
更新日期:1993-07-01 00:00:00
abstract::Treatment of diffuse large B-cell lymphoma (DLBCL) with R-CHOP(-like) regimens include large cumulative doses of prednisolone. In this retrospective study, we evaluated changes in vertebral bone density (VD) in DLBCL patients by measuring CT-ascertained Hounsfield units (HU) at the L3 level. In total, 111 patients dia...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2016.1233543
更新日期:2017-05-01 00:00:00
abstract::Ibrutinib and idelalisib are kinase inhibitors that have revolutionized the treatment of chronic lymphocytic leukemia (CLL). Capable of inducing durable remissions, these agents also modulate the immune system. Both ibrutinib and idelalisib abrogate the tumor-supporting microenvironment by disrupting cell-cell interac...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.1080/10428194.2018.1457147
更新日期:2018-12-01 00:00:00
abstract::Immune mechanisms superimposed to the myeloablative conditioning regimens exert an additional powerful effect in eradicating leukemia and in achieving immunological control of minimal residual disease. The impact of GVHD-independent GVL has been evaluated to be absent, or near absent, in ALL, about 30% in AML and abou...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
doi:10.3109/10428199309047890
更新日期:1993-01-01 00:00:00
abstract::Our aim was to describe a large population-based cohort of diffuse large B-cell lymphoma (DLBCL) during the last decade, evaluating possible improvement in survival and to identify subgroups in need of novel treatment strategies. The study population encompassed all patients diagnosed with DLBCL in Sweden from 2000 th...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.3109/10428194.2013.853297
更新日期:2014-08-01 00:00:00
abstract::DNA methylation (DNAm) silences gene expression and may play a role in immune dysregulation that is characteristic of adolescent/young adult Hodgkin lymphoma (AYAHL). We used the Infinium HumanMethylation27 BeadChip to quantify DNAm in blood (N = 9 pairs, mean age 57.4 y) or saliva (N = 36 pairs, mean age 50.0 y) from...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章
doi:10.1080/10428194.2018.1533128
更新日期:2019-06-01 00:00:00