0000000000543872
AUTHOR
Gesine Bug
Hematopoietic Growth Factors Are Differentially Regulated in Monocytes and CD4+T Lymphocytes: Influence of IFN-α and Interleukin-4
We investigated the influence of interferon-alpha (IFN-alpha) on the synthesis of granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-3 (IL-3) by monocytes and activated T helper cells. IFN-alpha inhibited the production of GM-CSF in unstimulated and lipopolysaccharide (LPS)-activated monocytes to the same extent as was observed in the presence of IL-4. In highly purified CD4+ T cells, which were activated by incubation with immobilized anti-CD3 antibody and anti-CD28, IFN-alpha reduced production of GM-CSF to 47%. In contrast, GM-CSF production in activated T cells was unaffected by exogenously added IL-4. The production of IL-3 by T helper cells was significantly inh…
Sorafenib maintenance after allogeneic hematopoietic stem cell transplantation for acute myeloid leukemia with FLT3-internal tandem duplication mutation (SORMAIN).
PURPOSE Despite undergoing allogeneic hematopoietic stem cell transplantation (HCT), patients with acute myeloid leukemia (AML) with internal tandem duplication mutation in the FMS-like tyrosine kinase 3 gene ( FLT3-ITD) have a poor prognosis, frequently relapse, and die as a result of AML. It is currently unknown whether a maintenance therapy using FLT3 inhibitors, such as the multitargeted tyrosine kinase inhibitor sorafenib, improves outcome after HCT. PATIENTS AND METHODS In a randomized, placebo-controlled, double-blind phase II trial (SORMAIN; German Clinical Trials Register: DRKS00000591), 83 adult patients with FLT3-ITD–positive AML in complete hematologic remission after HCT were r…
Treatment of Relapse after Allogeneic Hematopoietic Stem Cell Transplantation with Venetoclax, Hypomethylating Agents and DLI - a Retrospective Multi Center Study
Introduction: The most common cause of treatment failure after allogeneic hematopoetic stem cell transplantation (aHSCT) is relapse. The combination of venetoclax and the hypomethylating agents (HMA) azacitidine (AZA) or decitabine (DAC) have shown promising efficacy in elderly patients with AML. We here present clinical data on 32 patients, who were treated with an HMA/venetoclax combination therapy (HMAClax) for relapse of a myeloid malignancy after aHSCT, collected retrospectively from 11 German centers. Results: Sixteen patients (50%) were male, median age was 54 years (30.8-71.5). Diagnoses at aHSCT were 25 AML (17 primary, 8 emerging from MDS, CMML or OMF), 5 MDS, 1 CMML and one atypi…
Influence of molecular subgroups on outcome of acute myeloid leukemia with normal karyotype in 141 patients undergoing salvage allogeneic stem cell transplantation in primary induction failure or beyond first relapse
Based on molecular aberrations, in particular the NPM1 mutation (NPM1(mut)) and the FLT3 internal tandem duplication (Flt3-ITD), prognostic subgroups have been defined among patients with acute myeloid leukemia with normal karyotype. Whereas these subgroups are known to play an important role in outcome in first complete remission, and also in the indication for allogeneic stem cell transplantation, data are limited on their role after transplantation in advanced disease. To evaluate the role of molecular subgroups of acute myeloid leukemia with normal karyotype after allogeneic stem cell transplantation beyond first complete remission, we analyzed the data from 141 consecutive adults (medi…
Allogeneic stem cell transplantation after conditioning with treosulfan, etoposide and cyclophosphamide for patients with acute lymphoblastic leukemia (ALL) not eligible for TBI-containing regimens: a phase II-Study on behalf of the German ALL Study Group (GMALL) and the German Cooperative Transplant Study Group
Abstract Total-body-irradiation (TBI) based preparative regimens are considered as standard conditioning therapy for allogeneic stem cell transplantation (AHSC) in patients with acute lymphoblastic leukemia (ALL). Within a multi-center prospective phase II study we have investigated the toxicity and efficacy of a non-TBI-based regimen consisting of treosulfan, etoposide, and cyclophosphamide in patients with ALL. Inclusion criteria were complete remission, non-eligibility for TBI or patient’s wish to avoid TBI. Between July 2007 and August 2010, 50 patients with a median age of 46.5 years were enrolled at ten German centers. 74% of the patients were in 1. CR and 26% 2. or higher CR.The cond…
Phase I/II Study of the Deacetylase Inhibitor Panobinostat As Maintenance Therapy after an Allogeneic Stem Cell Transplantation in Patients with High-Risk MDS or AML: The Panobest-Trial
Abstract Background: Leukemic relapse and graft-versus-host disease (GvHD) remain major obstacles after an allogeneic stem cell transplantation (HSCT). Panobinostat is a potent inhibitor of class I, II and IV deacetylases and has shown antileukemic as well as immunomodulatory activity. The hypothesis of our phase I/II PANOBEST trial was that panobinostat can effectively prevent relapse in patients (pts) with high-risk (HR) myeloid diseases while simultaneously reducing GvHD. We aimed to determine dose-limiting toxicity (DLT), maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D) of panobinostat in adult pts with HR acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS…
Current practice in nutrition after allogeneic hematopoietic stem cell transplantation – Results from a survey among hematopoietic stem cell transplant centers
Summary Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is frequently associated with impaired oral intake and malnutrition, which potentially increases morbidity and mortality. Therefore, nutrition is one of the major challenges in the post-transplant period. Methods To document the current clinical approach in nutritional treatment, we designed a questionnaire concerning the current practice in nutrition after alloHSCT and distributed it to German speaking centers performing alloHSCT in Germany, Austria and Switzerland between November 2018 and March 2020. Twenty-eight (39%) of 72 contacted centers completed the survey, 23 from Germany, two from Austria and three …