Search results for "leukemia."
showing 10 items of 970 documents
Essential Oil Composition of Alluaudia procera and in Vitro Biological Activity on Two Drug-Resistant Models
2019
Drug resistance is a major obstacle in antibiotic and antitumor chemotherapy. In response to the necessity to find new therapeutic strategies, plant secondary metabolites including essential oils (EOs) may represent one of the best sources. EOs in plants act as constitutive defenses against biotic and abiotic stress, and they play an important role in the pharmacology for their low toxicity, good pharmacokinetic and multitarget activity. In this context, natural products such as EOs are one of the most important sources of drugs used in pharmaceutical therapeutics. The aim of this paper was to identify the chemical composition of the essential oil of Alluaudia procera leaves, obtained by hy…
Repurposing of the ALK inhibitor crizotinib for acute leukemia and multiple myeloma cells
2021
Crizotinib was a first generation of ALK tyrosine kinase inhibitor approved for the treatment of ALK-positive non-small-cell lung carcinoma (NSCLC) patients. COMPARE and cluster analyses of transcriptomic data of the NCI cell line panel indicated that genes with different cellular functions regulated the sensitivity or resistance of cancer cells to crizotinib. Transcription factor binding motif analyses in gene promoters divulged two transcription factors possibly regulating the expression of these genes, i.e., RXRA and GATA1, which are important for leukemia and erythroid development, respectively. COMPARE analyses also implied that cell lines of various cancer types displayed varying degr…
Cardiorenal syndrome followed by acute hepatitis C in a patient with acute myeloid leukemia
1969
SUMMARY Cardiorenal syndrome involves altering cardiac and renal function. These patients frequently develop resistance to diuretic therapy, so that ultrafiltration should be applied in emergency for saving them. Concomitant presence of an active hematologic malignancy represents an important complicating factor. We present the case of an elderly patient with acute myeloid leukemia, appeared on the background of myelodysplastic syndrome who, during marrow aplasia occurred after the first course of induction chemotherapy, developed a cardiorenal syndrome, which required repeated sessions of hemodialysis. Complete hematologic remission and efficiency of fluid depletion therapy allowed the sec…
Do we Need a Triple Antibiotic Therapy?
2001
To compare the efficacy and toxicity of triple antibiotic therapy in patients undergoing autologous peripheral blood-stem-cell transplantation (PBSCT) with literature data.
Impact of Prophylactic CD8-Depleted Donor-Lymphocyte Infusions After Allogeneic Hematopoietic Stem Cell Transplantation and Alemtuzumab Mediated T-Ce…
2011
Abstract Abstract 4109 We have previously demonstrated that the application of CD8-depleted donor-lymphocyte infusions (DLI) is feasible after reduced-intensity conditioning and in vivo T-cell depletion by alemtuzumab. DLI overcome slow lymphocyte recovery associated with alemtuzumab-administration and improve anti-infectious immunity and reliably convert a decreasing T-cell chimerism (Meyer et al. Blood 2007 & BMT 2010). Here we provide clinical follow up data of 117 patients with different hematological diseases and a median observation time of 1 year (range, 1–86 months) post hematopoietic stem cell transplantation (HSCT). The majority of patients either suffered from an acute leukem…
IFN-alpha Stimulates Proliferation and Cytokine Secretion of CD40-Stimulated B Cell Chronic Lymphocytic Leukemia Cells In Vitro
1999
Interferon (IFN)-alpha has a therapeutic effect in several B cell malignancies, including low-grade non-Hodgkin's lymphoma (NHL), multiple myeloma, and hairy cell leukemia, whereas its efficacy in the treatment of B cell chronic lymphocytic leukemia (B-CLL) is rather limited. In the present study, we investigated the effect of IFN-alpha on the biologic functions of B-CLL cells, which were stimulated by cross-linking of the CD40 antigen. In cell samples from 16 B-CLL patients, the addition of IFN-alpha to CD40-stimulated purified B-CLL cells caused a significant increase in [3H]thymidine uptake (p < 0.003). In B-CLL cells maximally activated by CD40 cross-linking and interleukin-2 (IL-2)/IL-…
Computer-assisted interpretation of flow cytometry data in hematology.
1996
A computer program has been developed for computer-assisted diagnosis (including subclassification) of flow cytometry data of acute leukaemias and non-Hodgkin lymphomas by means of artificial intelligence. The knowledge base for the system has been formulatedas semantic networks that describe physiological hematopoiesisas well as the pathological situation (eg., aberrant antigen expression) of hematological disorders. The semantic networks reflect the hierarchy of cells and their occurrence in diseases, the normal and pathological antigen expression patterns of cells, cell maturation, and the frequency of cell populations in normal blood and bone marrow. Using these semantic networks, the d…
Molecular Remission Can Be Attained in Relapsed or Refractory Chronic Lymphocytic Leukemia (CLL) and Follicular Lymphomas after Reduced Intensity Con…
2004
Abstract RIC followed by allo-SCT is an effective salvage treatment for some relapsed hematologic malignancies due to the postulated graft versus tumour (GVT) effect. In order to evaluate the quality of the clinical response, we have investigated the molecular status of patients receiving allo-SCT for relapsed disease. Forty-four patients (19 chronic lymphocytic leukemias (CLL), 21 follicular lymphomas (FCL) and 4 small lymphocytic lymphomas (SLL)) were enrolled in a prospective phase II study. The median age was 54 years (range: 32–69 years). The median number of previous chemotherapy regimens was 2 (range: 1–5) and 23% of patients had already failed an auto-SCT. Before transplant 34% of p…
Salvage Therapy of Adult ALL
1996
In a first study (1986 to 1992) the German Relapsing ALL Study Group (GRALLSG) has treated 67 adult patients with a first relapse of ALL. A first phase of induction consisted of vindesine, daunorubicin, asparaginase, and prednisone, a second phase of high-dose cytosine-arabinoside (Hd ara-C) and VP16. Results: 45 CR, 2 PR, 13 failures, 7 early death. 25 patients received a BMT. 10 had an allogeneic BMT in CR, 5 after another relapse or with refractory disease. Of 10 with autologous BMT 8 have been in 2nd CR. Only 4 of all 67 patients are surviving without relapse: One after unrelated BMT (36+mo), two after autologous BMT in 2nd CR (46+, 64+mo), and one after chemotherapy (61+mo). One patien…
Combination Treatment with Imatinib and Mitoxantrone/Etoposide Is a Suitable Preparative Regimen before Allogeneic Transplantation in Patients with M…
2005
Abstract In advanced BCR-ABL-positive leukemia, combination of chemotherapy with imatinib is expected to result in better reduction of leukemia cell load and may delay or offset clonal selection of resistant leukemia cells, thus improving the survival. We carried out a prospective phase I/II combination trial for patients (pts) with myeloid blast crisis of chronic myelogenous leukemia (CML). Pts were treated with imatinib+mitoxantrone/etoposide in four cohorts starting from mitoxantrone 10mg/m2/d and etoposide 100 mg/m2/d for 2 or 3 consecutive days and start of imatinib 600mg/d from day 15 (coh. 1 and 2) or from day 1 (coh. 3 and 4, respectively). After hematologic reconstitution following…