Abstract:
:During a trial using recombinant human interleukin-2 (rhIL-2) immunotherapy for acute myeloblastic leukaemia (AML) in remission, eosinophilia was observed in all patients. We used in-vitro clonogenic assays to investigate the mechanism of the eosinophilia in five patients. The mean eosinophil count increased from 0.05 x 10(9)/l before rhIL-2 to 0.98 x 10(9)/l within 48 h of stopping the infusion, and an exponential correlation between the pretreatment lymphocyte CD4:CD8 ratio and the maximum eosinophil count was observed. RhIL-2 did not stimulate eosinophil colony formation by normal bone marrow. However, serum collected from patients during rhIL-2 infusion was a potent stimulator of eosinophil colony forming units (CFU-Eo), but had no significant stimulatory effect on granulocyte-macrophage colony forming units (CFU-GM). The CFU-Eo stimulation by pre-treatment serum was 2.8-fold higher than control serum. Serum collected during treatment stimulated CFU-Eo 12 times more than control serum (P less than 0.05). By pre-incubating patient serum, collected during rhIL-2 treatment, with monoclonal antibodies to murine IL-5, or human granulocyte-macrophage colony stimulating factor (GM-CSF), a reduction of 80% and 38% respectively in eosinophil and GM colony production was found. The CFU-Eo stimulating effect of patient serum was in the range of the CFU-Eo stimulating effect of normal serum, after the addition of 5 u/ml of recombinant murine IL-5. The results suggest that eosinophilia was caused by IL-5 and GM-CSF production by rhIL-2 stimulated CD4 positive lymphocytes. The location on chromosomes 5 of the genes for IL-5, GM-CSF and IL-3 may be associated with regulation of expression, by a common mechanism, of all the factors known to be involved in eosinophil production. This mechanism may be activated by IL-2 stimulation. The separate location on chromosome 17 of the G-CSF gene may explain the ability of IL-2 to produce a distinct stimulus to eosinophil but not neutrophil production.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Macdonald D,Gordon AA,Kajitani H,Enokihara H,Barrett AJdoi
10.1111/j.1365-2141.1990.tb07867.xsubject
Has Abstractpub_date
1990-10-01 00:00:00pages
168-73issue
2eissn
0007-1048issn
1365-2141journal_volume
76pub_type
杂志文章abstract::Relapse of childhood acute lymphoblastic leukaemia (ALL) involving the eye is a rare but challenging problem. Twenty cases occurred in patients treated on the Medical Research Council United Kingdom Acute Lymphoblastic Leukaemia XI and ALL97 trials between 1991 and 2001, representing 2.2% of ALL relapses. Seventeen oc...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
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更新日期:2003-04-01 00:00:00
abstract::Lack of consensus for first-line marginal zone lymphoma (MZL) treatment and toxicities associated with currently available systemic therapies have inspired evaluation of immunotherapeutic agents yielding robust outcomes with improved tolerability. We previously reported durable efficacy with first-line lenalidomide an...
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abstract::We investigated the origin of bone marrow fibroblasts in three bone marrow transplant recipients with aplastic anaemia and leukaemia who received grafts from HLA-identical siblings of opposite sex. The patients were conditioned for transplantation with high doses of cytotoxic drugs and 300--1000 rads total body irradi...
journal_title:British journal of haematology
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更新日期:1980-02-01 00:00:00
abstract::This study describes the effect of ferritin on lymphocyte function in vitro. Peripheral blood lymphocytes isolated from normal donors were incubated with purified human splenic ferritin, and the mitogenic effect of phytohaemagglutinin (PHA), concanavalin A (Con A), pokeweed mitogen (PWM) and mixed lymphocyte reaction ...
journal_title:British journal of haematology
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journal_title:British journal of haematology
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abstract::Long term outcomes and mutations in patients with mantle cell lymphoma (MCL) who discontinued ibrutinib have not been described. Using deep targeted next generation sequencing, we performed somatic mutation profiling from 15 MCL patients (including 5 patients with paired samples; before and after progression on ibruti...
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journal_title:British journal of haematology
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abstract::Autologous or allogeneic peripheral blood T cells can stimulate the human megakaryocyte progenitor cell (CFU-Meg)-derived colony formation in a dose-dependent fashion in agar cultures of nonadherent (NA), T cell-depleted (NT) bone marrow (BM) cells. Low concentrations of monocytes and T cells can collaborate in the st...
journal_title:British journal of haematology
pub_type: 杂志文章
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abstract::A human plasma cell leukaemia cell line (HSM-2) and a subclone (HSM-2.3) have been established from the bone marrow of a patient with bi-phenotypic leukaemia. Proliferation assays using a variety of cytokines demonstrated that HSM-2 proliferated in response to recombinant interleukin-6 (rIL-6), but did not respond to ...
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journal_title:British journal of haematology
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pub_type: 杂志文章,多中心研究
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更新日期:2015-03-01 00:00:00
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journal_title:British journal of haematology
pub_type: 临床试验,杂志文章,随机对照试验
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abstract::During the 3 years 1984-86, 314 cases of multiple myeloma were diagnosed in the Health Care Region of Western Sweden. 180 of these cases were included in a clinical trial; 71 were notified to the trial but excluded; 49 cases were not reported to the trial; 14 were diagnosed post mortem. The crude incidence rate of mye...
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pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:British journal of haematology
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journal_title:British journal of haematology
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journal_title:British journal of haematology
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abstract::Myelodysplastic syndrome (MDS) is a common neoplasm of haematopoietic pluripotent stem cells. Although one third of MDS patients evolve to acute myeloid leukaemia (AML), little is understood about the mechanisms responsible for this progression. We have previously detected the frequent loss of heterozygosity (LOH) on ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04434.x
更新日期:2003-07-01 00:00:00