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European Journal of Haematology

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https://www.readbyqxmd.com/read/28805931/mrp1-protein-expression-in-leukemic-stem-cells-as-a-negative-prognostic-marker-in-acute-myeloid-leukemia-patients
#1
Maria Paprocka, Aleksandra Bielawska-Pohl, Joanna Rossowska, Agnieszka Krawczenko, Danuta Duś, Marek Kiełbiński, Olga Haus, Maria Podolak-Dawidziak, Kazimierz Kuliczkowski
BACKGROUND: It is well established that expression of multi-drug resistance (MDR) proteins (MDR1, BCRP, MDR3, MRP1 and LRP) in leukemic blasts correlates with AML patients clinical response. Assuming that leukemic stem cells (LSC) are resistant to chemotherapy and responsible for relapse it might be clinically relevant to evaluate the expression level of MDR proteins in LSC and relate it to the clinical outcome. METHODS: Bone marrow samples from 26 patients with de novo AML were labeled with antibodies to distinguish CD34+CD38-CD123+ LSC population and with antibodies against MDR1, BCRP, MDR3, MRP1 or LRP proteins...
August 14, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28801984/low-dose-bortezomib-and-dexamethasone-as-primary-therapy-in-elderly-patients-with-waldenstr%C3%B3-m-macroglobulinemia
#2
Ya-Ping Zhang, Xi Yang, Zeng-Hua Lin, Xin-Feng Wang, Xin Cao, Xue-Fen You, Hong-Ming Huang, Wen-Yu Shi, Hong Liu
OBJECTIVE: This retrospective study was designed to determine the efficacy and safety of low-dose bortezomib and dexamethasone (lBD) in elderly Chinese patients with Waldenstrӧm macroglobulinemia (WM). METHODS: Ten WM patients aged over 60 years received first-line treatment with lBD. RESULTS: The median age was 70 years (range, 61-77 years). The overall response rate was 80%, including 1 patient who achieved a complete response, 1 patient with very good partial response, and 6 patients with a partial response...
August 12, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28801967/retreatment-and-prolonged-therapy-with-subcutaneous-bortezomib-in-patients-with-relapsed-multiple-myeloma-a-randomized-controlled-phase-iii-study
#3
Evangelos Terpos, Marco Gobbi, Anna Potamianou, Marjolein Lahaye, Catherine Couturier, Michele Cavo
OBJECTIVES: This randomized, international, multicenter, open-label phase III study investigated the effects of experimental retreatment with subcutaneous bortezomib plus dexamethasone (VD) followed by prolonged bortezomib therapy vs. standard VD retreatment in patients with relapsed/refractory multiple myeloma. METHODS: Patients were randomized (2:1) to receive either experimental (n = 53) or standard (n = 27) retreatment, stratified by the number of prior therapy lines...
August 12, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28800175/mesenchymal-stromal-cells-contribute-to-quiescence-of-therapy-resistant-leukemic-cells-in-acute-myeloid-leukemia
#4
Wenwen Wang, Tilmann Bochtler, Patrick Wuchter, Linda Manta, Haiju He, Volker Eckstein, Anthony D Ho, Christoph Lutz
OBJECTIVE: Persistence of leukemic cells after induction therapy has been shown to correlate with poor survival in acute myeloid leukemia (AML). In this study we tested if human mesenchymal stromal cells (hMSC) have protective effects on leukemic cells undergoing chemotherapy. METHODS: Persistent disease was used as marker to identify cases with therapy resistant leukemic cells in 95 AML patients. Immunophenotyping, cell cycle and apoptosis assays were assessed by flow-cytometry...
August 11, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28759125/thrombopoietin-receptor-agonist-switch-in-adult-primary-immune-thrombocytopenia-itp-patients-a-retrospective-collaborative-survey-involving-four-spanish-centers
#5
Sunil Lakhwani, Maria Perera, Fernando Fernández-Fuerte, Mario A Rios de Paz, Melisa Torres, José María Raya, Miguel T Hernandez
OBJECTIVE: To describe the reasons for and result of thrombopoietin receptor agonists (TPO-RA) switching in adult ITP patients of four Spanish centres. METHODS: We retrospectively analized all patients who received sequential treatment with both TPO-RA between 2010 and 2015 recording clinical and biological parameters. RESULTS: 26 patients were included; 17 received first romiplostim and 9 received first eltrombopag. Reasons for switching were inefficacy (n=10), patient preference (n=8), side effects (n=5), and excessive platelet-count fluctuation (n=3)...
July 31, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28755517/morphological-features-of-congenital-dyserythropoietic-anemia-type-i-the-role-of-electron-microscopy-in-diagnosis
#6
Peretz Resnitzky, Dina Shaft, Hanna Shalev, Joseph Kapelushnik, Orly Dgany, Tanya Krasnov, Hannah Tamary
INTRODUCTION: Congenital dyserythropoietic anemias are rare blood disorders characterized by congenital anemia and a wide range of morphological and functional abnormalities of erythroid precursors. OBJECTIVES: To analyze the relative frequency of both light microscopic (LM) and electron microscopic (EM) morphological features of erythroblasts in a large group of patients with molecular proven congenital dyserythropoietic anemia type I (CDAI). METHODS: We retrospectively evaluated the LM and EM of bone marrow (BM) erythroblasts in 35 patients with CDAI...
July 29, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28719093/bone-marrow-harvest-from-unrelated-donors-up-to-date-methodology
#7
Katarzyna Pruszczyk, Kamila Skwierawska, Małgorzata Król, Albert Moskowicz, Dariusz Jabłoński, Tigran Torosian, Iwona Piotrowska, Elżbieta Urbanowska, Wiesław Wiktor-Jędrzejczak, Emilian Snarski
OBJECTIVES: Bone marrow harvesting is one of the essential sources of stem cells for hematopoietic stem cell transplantation. We describe here the current "up to date" standard of the bone marrow harvest in unrelated stem cell donors. METHODS: We analyzed medical data of 187 unrelated hematopoietic stem cell donors who underwent bone marrow harvest without previous peripheral blood stem collection at the center between 2011 and 2015. The methodology of marrow collection includes multiple cells aimed at safety of the procedure e...
July 18, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28718971/influence-of-who-versus-eln-advanced-phase-chronic-myeloid-leukemia-definitions-on-overall-survival
#8
LETTER
Inge G P Geelen, Noortje Thielen, Jeroen J W M Janssen, Mark-David Levin, Mels Hoogendoorn, Otto Visser, Jan J Cornelissen, Peter E Westerweel
No abstract text is available yet for this article.
July 18, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28692178/cell-free-dna-minimally-invasive-marker-of-hematological-malignancies
#9
REVIEW
Veronika Kubaczkova, David Vrabel, Lenka Sedlarikova, Lenka Besse, Sabina Sevcikova
Although tumor cells are the most reliable source of tumor DNA, biopsy of the tumor is an invasive procedure that should be avoided in some cases. The main limitation of any biopsy is sampling of one tumor site, which may not represent all malignant clones due to the heterogeneity of the tumor. These clones respond to treatment differently and thus directly influence survival of the patient. Circulating cell-free DNA (cfDNA) is released from multiple tumor sites, reflects overall heterogeneity of the tumor, and correlates with its progression...
July 10, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28692147/persisting-hyperbilirubinemia-in-patients-with-paroxysmal-nocturnal-hemoglobinuria-pnh-chronically-treated-with-eculizumab-the-role-of-hepatocanalicular-transporter-variants
#10
Ferras Alashkar, Susanne N Weber, Colin Vance, Dörte Herich-Terhürne, Ulrich Dührsen, Frank Lammert, Alexander Röth
BACKGROUND: Eculizumab treated PNH patients (pts) show a dramatic decrease in serum LDH activities and bilirubin concentrations. However, some pts remain hyperbilirubinemic, possibly indicating an inadequate response due to extravascular hemolysis. METHODS: Mutation analyses of hepatocanalicular transporter/nuclear receptor variants (ABCB4, ABCB11, ATP8B1, NR1H4) were performed in eight (5/8 males; mean age 38 yrs (range 26-68 yrs)) out of the 174 pts with PNH/-clone at our department due to a persistent increase in total bilirubin concentrations (median 3...
July 10, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28692146/validation-of-an-algorithm-identifying-incident-primary-immune-thrombocytopenia-in-the-french-national-health-insurance-database
#11
Salim Mezaache, Helene Derumeaux, Pierre Ferraro, Pascal Capdepon, Jean-Christophe Steinbach, Xavier Abballe, Deborah Palas, Nabil Saichi, Karine Desboeuf, Maryse Lapeyre-Mestre, Laurent Sailler, Guillaume Moulis
OBJECTIVES: To evaluate the accuracy of an algorithm identifying newly diagnosed immune thrombocytopenia (ITP) patients in the French national health insurance database (SNIIRAM). METHODS: The source of data was the SNIIRAM of Midi-Pyrenees region (South-West of France, 3 million inhabitants). Data of patients with at least one ITP code (D69.3 code of the International Classification of Disease, version 10) were extracted between January 1, 2012 and December 31, 2014...
July 10, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28681469/differential-expression-of-homologous-recombination-dna-repair-genes-in-the-early-and-advanced-stages-of-myelodysplastic-syndrome
#12
Jan Valka, Jitka Vesela, Hana Votavova, Michaela Dostalova-Merkerova, Zuzana Horakova, Vit Campr, Jana Brezinova, Zuzana Zemanova, Anna Jonasova, Jaroslav Cermak, Monika Belickova
BACKGROUND: The high incidence of mutations and cytogenetic abnormalities in patients with myelodysplastic syndrome (MDS) suggests that defects in DNA repair mechanisms. We monitored DNA repair pathways in MDS and their alterations during disease progression. METHODS: Expression profiling of DNA repair genes was performed on CD34+ cells and paired samples were used for monitoring of RAD51 and XRCC2 gene expression during disease progression. Immunohistochemical staining for RAD51 was done on histology samples...
July 5, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28675769/outcomes-of-allogeneic-stem-cell-transplantation-in-patients-with-paroxysmal-nocturnal-hemoglobinuria-with-or-without-aplastic-anemia
#13
Sung-Eun Lee, Sung Soo Park, Young-Woo Jeon, Jae-Ho Yoon, Byung-Sik Cho, Ki-Sung Eom, Yoo-Jin Kim, Seok Lee, Chang-Ki Min, Hee-Je Kim, Seok-Goo Cho, Dong-Wook Kim, Woo-Sung Min, Jong Wook Lee
OBJECTIVE: The aim of this study was to evaluate the long-term outcomes of allogeneic stem cell transplantation (SCT) in patients with paroxysmal nocturnal hemoglobinuria (PNH) with or without aplastic anemia (AA). METHOD: A total of 33 patients with PNH clones who underwent allogeneic SCT were analyzed. RESULTS: After a median follow-up of 57 months (range, 6.0-151.3), the 5-year estimated overall survival rate was 87.9 ± 5.7%. Four patients died of transplant-related mortality (TRM)...
July 4, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28675766/hypercalcemia-remains-an-adverse-prognostic-factor%C3%A2-for-newly-diagnosed-multiple-myeloma-patients-in-the-era-of-novel-anti-myeloma-therapies
#14
Flora Zagouri, Efstathios Kastritis, Athanasios Zomas, Evangelos Terpos, Eirini Katodritou, Argiris Symeonidis, Sosana Delimpasi, Anastasia Pouli, Theodoros P Vassilakopoulos, Eurydiki Michalis, Stavroula Giannouli, Zafiris Kartasis, Anna Christoforidou, Kiriaki Kokoviadou, Eleftheria Hatzimichael, Dimitra Gika, Catherine Megalakaki, Maria Papaioannou, Marie-Christine Kyrtsonis, Kostas Konstantopoulos, Meletios A Dimopoulos
OBJECTIVES: To evaluate the prognostic impact of hypercalcemia in newly diagnosed patients with symptomatic multiple myeloma (MM), especially after the incorporation of new agents. METHODS: we analyzed the outcomes of newly diagnosed patients with symptomatic myeloma included in the database of the Greek Myeloma Study Group for the prognostic effect of the presence of hypercalcemia (defined as corrected serum calcium ≥11 mg/dl) at diagnosis. RESULTS: Among 2129 consecutive patients with symptomatic MM, 19...
July 4, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28672052/direct-acting-oral-anticoagulants-for-the-treatment-of-suspected-heparin-induced-thrombocytopenia
#15
Kyle A Davis, Daphne O Davis
OBJECTIVE: To evaluate the efficacy and safety of direct oral anticoagulant (DOAC) therapy in hospitalized patients with suspected heparin induced thrombocytopenia (HIT). METHODS: Retrospective cohort study of adult patients prescribed apixaban, dabigatran, or rivaroxaban for the treatment of acute HIT from January 1 2013 to January 1 2017. Eligibility requirements included an intermediate or high pretest probability for HIT (4T score ≥ 4) and a positive IgG-specific anti-PF4/ heparin complex assay...
July 3, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28656589/the-prognostic-value-of-a-trend-in-modified-sofa-score-for-patients-with-hematological-malignancies-in-the-intensive-care-unit
#16
Astrid A M P Demandt, Daniël A Geerse, Bram J P Janssen, Bjorn Winkens, Harry C Schouten, Walther N K A van Mook
BACKGROUND: Patients with hematological malignancies admitted to an intensive care unit (ICU) have a poor prognosis. The Sequential Organ Failure Assessment (SOFA) score is used to monitor patients on the ICU. Little is known about the value of this score in hematology patients. Therefore, the prognostic value of the SOFA score and a modified hematological SOFA score (SOFAhem) was studied. METHODS: Patients with hematological malignancies admitted to the ICU between 1999 and 2009 were analyzed in a retrospective cohort study...
June 28, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28646624/prognostic-relevance-of-oxidative-stress-measurement-in-chronic-lymphocytic-leukemia
#17
Giovanni D'Arena, Candida Vitale, Omar Perbellini, Marta Coscia, Francesco La Rocca, Vitalba Ruggieri, Carlo Visco, Matteo Nicola Dario Di Minno, Idanna Innocenti, Vincenzo Pizza, Silvia Deaglio, Giovanni Di Minno, Aldo Giudice, Gioacchino Calapai, Pellegrino Musto, Luca Laurenti, Eugenio Luigi Iorio
OBJECTIVE: To evaluate the prognostic significance of oxidative stress (OS) and antioxidant defense status measurement in patients with chronic lymphocytic leukemia (CLL). METHOD: d-ROMs test and BAP test were evaluated at diagnosis of 165 patients with CLL and correlated with clinical-biological features and prognosis. RESULTS: An increased oxidative damage (d-ROMs test) and a reduced antioxidant potential (BAP test), were found in CLL patients than normal controls (p <0...
June 24, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28632323/clinical-outcomes-of-hla-dpb1-mismatches-in-10-10-hla-matched-unrelated-donor-recipient-pairs-undergoing-allogeneic-stem-cell-transplant
#18
Ann M Moyer, Shahrukh K Hashmi, Cynthia M Kroning, Walter K Kremers, Steven R De Goey, Mrinal Patnaik, Mark Litzow, Dennis A Gastineau, William J Hogan, Eapen K Jacob, Justin D Kreuter, Laurie L Wakefield, Manish J Gandhi
OBJECTIVE: HLA-DPB1 matching may impact allogeneic hematopoietic stem cell transplantation (ASCT) outcomes; however, this locus is not in linkage disequilibrium with the remainder of the HLA genes. After classifying HLA-DPB1 mismatches based on T-cell epitope, avoiding non-permissive mismatches may impact survival. We tested this hypothesis at a single academic institution. METHODS: Retrospective HLA-DPB1 genotyping was performed on 153 adult patients who underwent ASCT and unrelated donors matched for HLA-A, B, C, DRB1, and DQB1 loci (10/10)...
June 20, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28632322/reduced-intensity-conditioning-allogeneic-transplantation-after-salvage-treatment-with-dt-pace-in-myeloma-patients-relapsing-early-after-autologous-transplant
#19
K Randall, M Kaparou, E Xenou, S Paneesha, B Kishore, A Kanellopoulos, R Lovell, K Holder, J Suhr, L Baker, L Ryan, E Nikolousis
OBJECTIVE: In this retrospective single center study we have looked into the transplant outcomes(overall survival OS, progression free survival PFS,GvHD) and the role of chimerism, DLI and pre-transplant characteristics in patients who had a suboptimal response (<12 months)to an autologous stem cell transplant for myeloma and underwent an Alemtuzumab T-cell depleted reduced intensity allograft(RIC). METHODS: 24 patients were salvaged with 2 cycles of DT-PACE and received a RIC transplant with Fludarabine, Melphalan and Alemtuzumab...
June 20, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28618074/bcrp-mrna-and-flt3-itd-are-independent-poor-risk-factors-in-adult-patients-with-acute-myeloid-leukemia-and-intermediate-or-normal-karyotype
#20
Barbara Nasiłowska-Adamska, Krzysztof Warzocha, Iwona Solarska, Katarzyna Borg, Barbara Pieńkowska-Grela, Anna Czyż
PURPOSE: FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD) is aberration associated with poor prognosis in AML. We have analyzed the expression of MDR-1, MRP-1, and BCRP mRNA in relation to FLT3-ITD in 100 AML adult patients with normal and intermediate karyotype. METHODS: The RQ-PCR method was performed to assess the expression of MDR-1, MRP-1, and BCRP mRNA, and the results were presented as coefficients calculated using an intermediate method according to Pfaffl's rule...
June 15, 2017: European Journal of Haematology
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