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https://www.readbyqxmd.com/read/28550664/-synergistic-lethal-effect-of-combined-treatment-of-arsenic-trioxide-and-aclacinomycin-on-human-acute-myeloid-leukemia-cell-line-kg-1a
#1
Y B Ye, X J Xu, Y H Chen, M W Zhang, D F Qiu, Z W Guo, H Q He
Objective: To investigate the synergistic lethal effect and mechanism of arsenic trioxide (ATO) and aclacinomycin (ACM) on human acute myeloid leukemia cell line KG-1a. Methods: Colony-forming assay was used to detect the proliferation of KG-1a cells treated with different concentration of ATO and ACM. Compusyn software was used to analyze the synergistic effect of ATO and ACM. Flow cytometry and Wright's staining were used to analyze the apoptotic rate of KG-1a cells induced by combined treatment of ATO and ACM...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28550639/philadelphia-chromosome-positive-acute-myeloid-leukemia-with-masses-and-osteolytic-lesions-finding-of-18f-fdg-pet-ct
#2
Zhan Su, Fengyu Wu, Weiyu Hu, Xiaodan Liu, Shaoling Wu, Xianqi Feng, Zhongguang Cui, Jie Yang, Zhenguang Wang, Hongzai Guan, Hongguo Zhao, Wei Wang, Chunting Zhao, Jun Peng
Philadelphia chromosome-positive acute myeloid leukemia is controversial and difficult to distinguish from the blast phase of chronic myeloid leukemia. As a myeloid neoplasm, rare cases of this leukemia manifest multiple soft-tissue tumors or bone lytic lesions. In this paper, we describe a 49-year-old male patient who had an abrupt onset with sharp chest pain, fever, fatigue, emaciation, and splenomegaly. 18F-fluoro-deoxy-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) result showed diffuse and uneven hypermetabolic lesions in the bone marrow with peripheral bone marrow expansion, multiple soft tissue neoplasms with high 18F-FDG uptake, and lytic bone lesions...
May 27, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28550450/abcc4-functional-snp-in-the-3-splice-acceptor-site-of-exon-8-g912t-is-associated-with-unfavorable-clinical-outcome-in-children-with-acute-lymphoblastic-leukemia
#3
Hamzeh Mesrian Tanha, Soheila Rahgozar, Marjan Mojtabavi Naeini
OBJECTIVES: ATP-binding cassette subfamily C member 4 (ABCC4) encoding MRP4 protein is involved in pediatric acute lymphoblastic leukemia (ALL) drug resistance. The nonsynonymous single nucleotide polymorphism (SNP) rs2274407 (G912T; K304N) is located in the 3' splice acceptor site of exon 8 of ABCC4 pre-mRNA. The aim of this study was to investigate the prognostic value of rs2274407 in childhood ALL and its possible functional effect on MRP4. METHODS: ABCC4 G912T SNP was genotyped in 145 Iranian Philadelphia-negative (Ph(-)) children with ALL using modified tetra-primer ARMS PCR and evaluated for possible association with 3-year disease-free survival (3DFS)...
May 26, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28550414/dasatinib-rapidly-induces-deep-molecular-response-in-chronic-phase-chronic-myeloid-leukemia-patients-who-achieved-major-molecular-response-with-detectable-levels-of-bcr-abl1-transcripts-by-imatinib-therapy
#4
Masayuki Shiseki, Chikashi Yoshida, Naoki Takezako, Akira Ohwada, Takashi Kumagai, Kaichi Nishiwaki, Akira Horikoshi, Tetsuya Fukuda, Hina Takano, Yasuji Kouzai, Junji Tanaka, Satoshi Morita, Junichi Sakamoto, Hisashi Sakamaki, Koiti Inokuchi
BACKGROUND: With the introduction of imatinib, a first-generation tyrosine kinase inhibitor (TKI) to inhibit BCR-ABL1 kinase, the outcome of chronic-phase chronic myeloid leukemia (CP-CML) has improved dramatically. However, only a small proportion of CP-CML patients subsequently achieve a deep molecular response (DMR) with imatinib. Dasatinib, a second-generation TKI, is more potent than imatinib in the inhibition of BCR-ABL1 tyrosine kinase in vitro and more effective in CP-CML patients who do not achieve an optimal response with imatinib treatment...
May 26, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28550186/mutations-in-the-3-untranslated-region-3-utr-of-notch1-are-associated-with-low-cd20-expression-levels-in-chronic-lymphocytic-leukemia
#5
Tamara Bittolo, Federico Pozzo, Riccardo Bomben, Tiziana D'Agaro, Vanessa Bravin, Pietro Bulian, Francesca Maria Rossi, Antonella Zucchetto, Massimo Degan, Paolo Macor, Giovanni D'Arena, Annalisa Chiarenza, Francesco Zaja, Gabriele Pozzato, Francesco Di Raimondo, Davide Rossi, Gianluca Gaidano, Giovanni Del Poeta, Valter Gattei, Michele Dal Bo
No abstract text is available yet for this article.
May 26, 2017: Haematologica
https://www.readbyqxmd.com/read/28550184/reduced-hematopoietic-stem-cells-frequency-predicts-outcome-in-acute-myeloid-leukemia
#6
Wenwen Wang, Thomas Stiehl, Simon Raffel, Van T Hoang, Isabel Hoffmann, Laura Poisa-Beiro, Borhan R Saeed, Rachel Blume, Linda Manta, Volker Eckstein, Tilmann Bochtler, Patrick Wuchter, Marieke Essers, Anna Jauch, Andreas Trumpp, Anna Marciniak-Czochra, Anthony D Ho, Christoph Lutz
In patients with acute myeloid leukemia and low percentages of aldehyde-dehydrogenase-positive cells, non-leukemic hematopoietic stem cells can be separated from leukemic cells. By relating hematopoietic stem cell frequencies to outcome we detected poor overall- and disease-free survival of patients with low hematopoietic stem cell frequencies. Serial analysis of matched diagnostic and follow-up samples further demonstrated that hematopoietic stem cells increased after chemotherapy in patients that achieved durable remissions...
May 26, 2017: Haematologica
https://www.readbyqxmd.com/read/28550181/acute-myeloid-leukemia-stem-cell-function-is-preserved-in-the-absence-of-autophagy
#7
Amy H Porter, Lucie Leveque-El Mouttie, Therese Vu, Claudia Bruedigam, Joanne Sutton, Sebastien Jacquelin, Geoffrey R Hill, Kelli P A MacDonald, Steven W Lane
No abstract text is available yet for this article.
May 26, 2017: Haematologica
https://www.readbyqxmd.com/read/28550041/central-nervous-system-involvement-in-acute-lymphoblastic-leukemia-is-mediated-by-vascular-endothelial-growth-factor
#8
Vera Münch, Luca Trentin, Julia Herzig, Salih Demir, Felix Seyfried, Johann M Kraus, Hans A Kestler, Rolf Köhler, Thomas F E Barth, Geertruy Te Kronnie, Klaus-Michael Debatin, Lüder H Meyer
In acute lymphoblastic leukemia (ALL), central nervous system (CNS) involvement is a major clinical concern. Despite non-detectable CNS leukemia in many cases, prophylactic CNS-directed conventional intrathecal chemotherapy is required for relapse free survival indicating subclinical CNS manifestation in most patients. However, CNS-directed therapy is associated with long-term sequelae including neurocognitive deficits and secondary neoplasms. Therefore, molecular mechanisms and pathways mediating leukemia cell entry into the CNS need to be understood in order to identify targets for prophylactic and therapeutic interventions and develop alternative CNS-directed treatment strategies...
May 26, 2017: Blood
https://www.readbyqxmd.com/read/28549768/myasthenia-gravis-after-allogeneic-bone-marrow-transplantation-a-case-report-and-literature-review
#9
Yutaka Tsutsumi, Takashi Kamiishi, Ryo Kikuchi, Shinichi Ito, Satomi Matsuoka, Takanori Teshima
A 52-year-old man with acute myeloid leukemia underwent allogeneic hematopoietic stem cell transplantation and developed extensive chronic graft-versus-host disease and myasthenia gravis (MG), which became involved with oculobulbar and proximal upper and lower limb weakness in 677days. In the literature, we identified 24 cases where MG developed after allo-SCT. Graft-versus-host disease development and male recipients of female donors might be prone to the development of posttransplant MG (odds ratio, 3.75)...
May 18, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28549767/treatment-of-del17p-and-or-aberrant-tp53-chronic-lymphocytic-leukemia-in-the-era-of-novel-therapies
#10
REVIEW
Hind Rafei, Mohamed A Kharfan-Dabaja
More effective therapies are emerging, with better toxicity profiles, and are being incorporated into modern treatment algorithms of chronic lymphocytic leukemia at various stages of the disease, including for patients harboring Del17p and/or aberrant TP53. Ibrutinib, an inhibitor of Bruton's tyrosine kinase, has demonstrated impressive response rates in the relapsed/refractory setting, including in the setting of Del17p and/or TP53 mutations. Venetoclax, an inhibitor of BCL-2 known to play an important role in regulating cell death, has been approved recently for treatment of patients with chronic lymphocytic leukemia with Del17p who have received at least one prior therapy...
May 19, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28549531/targeting-the-akt-gsk-3-bcl-2-axis-in-acute-myeloid-leukemia
#11
REVIEW
Maria Rosaria Ricciardi, Simone Mirabilii, Roberto Licchetta, Monica Piedimonte, Agostino Tafuri
Over the last few decades, there has been significant progress in the understanding of the pathogenetic mechanisms of the Acute Myeloid Leukemia (AML). However, despite important advances in elucidating molecular mechanisms, the treatment of AML has not improved significantly, remaining anchored at the standard chemotherapy regimen "3 + 7", with the prognosis of patients remaining severe, especially for the elderly and for those not eligible for transplant procedures. The biological and clinical heterogeneity of AML represents the major obstacle that hinders the improvement of prognosis and the identification of new effective therapeutic approaches...
May 19, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28549385/identification-and-imaging-of-leukemia-cells-using-dual-aptamer-functionalized-graphene-oxide-complex
#12
Amirhossein Bahreyni, Rezvan Yazdian-Robati, Mohammad Ramezani, Mehdi Rasouli, Morteza Alinezhad Nameghi, Mona Alibolandi, Khalil Abnous, Seyed Mohammad Taghdisi
Acute lymphoblastic leukemia is the most common malignancy in children. Patient improvement completely depends on the diagnosis of acute lymphoblastic leukemia. So there is a great demand for diagnosis of acute lymphoblastic leukemia. In this study, a novel assay based on dual-aptamer (Sgc8c and ATP aptamers)-functionalized graphene oxide (DAFGO) complex was designed for the identification of Molt-4 cells (human acute lymphoblastic leukemia T-cell). This assay relies on the internalization of DAFGO complex into Molt-4 cells, but not into U266 cells, using Sgc8c aptamer as molecular recognition probe, and release of FAM-labeled ATP aptamer from the complex in the presence of high amounts of ATP in lysosome, leading to a strong fluorescence emission...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28549238/risk-factors-and-mechanisms-contributing-to-tki-induced-vascular-events-in-patients-with-cml
#13
REVIEW
Peter Valent, Emir Hadzijusufovic, Gregor Hoermann, Wolfgang Füreder, Gerit-Holger Schernthaner, Wolfgang R Sperr, Rudolf Kirchmair, Dominik Wolf
Vascular adverse events (VAE) are an emerging problem in patients with chronic myeloid leukemia (CML) receiving second-generation BCR-ABL1 tyrosine kinase inhibitors (TKI). Relevant VAE comprise peripheral, cerebral, and coronary artery changes in patients receiving nilotinib, venous and arterial occlusive events during ponatinib therapy, and pulmonary hypertension in patients receiving dasatinib. Although each TKI binds to a unique profile of molecular targets in leukemic cells and vascular cells, the exact etiology of drug-induced vasculopathies remains uncertain...
May 12, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28549237/haploidentical-allogeneic-hematopoietic-stem-cell-transplantation-compared-to-matched-unrelated-transplantation-for-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia
#14
Bin Gu, Xiaojin Wu, Guanghua Chen, Xiao Ma, Zhengming Jin, Xiaowen Tang, Yue Han, Chengcheng Fu, Huiying Qiu, Aining Sun, Depei Wu
To investigate the effect of haploidentical allogeneic hematopoietic stem cell transplantation (Haplo-HCT) in Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL), the outcome of 58 patients with Ph+ ALL who received Haplo-HCT (n=42) or matched unrelated donor transplantation (MUD-HCT) (n=16) during the same period were analyzed retrospectively. All patients received a tyrosine kinase inhibitor (TKI)-based regimen before transplantation, and TKI was resumed primarily after transplantation...
May 16, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28549225/economic-modeling-of-the-cost-of-chronic-lymphocytic-leukemia-therapy-it-is-about-the-model
#15
Chadi Nabhan, Anthony R Mato
No abstract text is available yet for this article.
June 1, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28549153/chippi-a-novel-method-for-mapping-chimeric-protein-protein-interactions-uncovers-selection-principles-of-protein-fusion-events-in-cancer
#16
Milana Frenkel-Morgenstern, Alessandro Gorohovski, Somnath Tagore, Vaishnovi Sekar, Miguel Vazquez, Alfonso Valencia
Fusion proteins, comprising peptides deriving from the translation of two parental genes, are produced in cancer by chromosomal aberrations. The expressed fusion protein incorporates domains of both parental proteins. Using a methodology that treats discrete protein domains as binding sites for specific domains of interacting proteins, we have cataloged the protein interaction networks for 11 528 cancer fusions (ChiTaRS-3.1). Here, we present our novel method, chimeric protein-protein interactions (ChiPPI) that uses the domain-domain co-occurrence scores in order to identify preserved interactors of chimeric proteins...
May 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28549148/risk-factors-for-invasive-fungal-disease-in-pediatric-cancer-and-hematopoietic-stem-cell-transplantation-a-systematic-review
#17
Brian T Fisher, Paula D Robinson, Thomas Lehrnbecher, William J Steinbach, Theoklis E Zaoutis, Bob Phillips, Lillian Sung
Background.: Although a number of risk factors have been associated with invasive fungal disease (IFD), a systematic review of the literature to document pediatric-specific factors has not been performed. Methods.: We used the Ovid SP platform to search Medline, Medline In-Process, and Embase for studies that identified risk factors for IFD in children with cancer or those who undergo hematopoietic stem cell transplantation (HSCT). We included studies if they consisted of children or adolescents (<25 years) who were receiving treatment for cancer or undergoing HSCT and if the study evaluated risk factors among patients with and those without IFD...
May 26, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28549065/c-elegans-daf-16-foxo-interacts-with-tgf-%C3%A3-bmp-signaling-to-induce-germline-tumor-formation-via-mtorc1-activation
#18
Wenjing Qi, Yijian Yan, Dietmar Pfeifer, Erika Donner V Gromoff, Yimin Wang, Wolfgang Maier, Ralf Baumeister
Activation of the FOXO transcription factor DAF-16 by reduced insulin/IGF signaling (IIS) is considered to be beneficial in C. elegans due to its ability to extend lifespan and to enhance stress resistance. In the germline, cell-autonomous DAF-16 activity prevents stem cell proliferation, thus acting tumor-suppressive. In contrast, hypodermal DAF-16 causes a tumorous germline phenotype characterized by hyperproliferation of the germline stem cells and rupture of the adjacent basement membrane. Here we show that cross-talk between DAF-16 and the transforming growth factor ß (TGFß)/bone morphogenic protein (BMP) signaling pathway causes germline hyperplasia and results in disruption of the basement membrane...
May 26, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28548938/nkp30-expression-is-a-prognostic-immune-biomarker-for-stratification-of-patients-with-intermediate-risk-acute-myeloid-leukemia
#19
Anne-Sophie Chretien, Cyril Fauriat, Florence Orlanducci, Jerome Rey, Gaelle Bouvier Borg, Emmanuel Gautherot, Samuel Granjeaud, Clemence Demerle, Jean-François Hamel, Adelheid Cerwenka, Elke Pogge von Strandmann, Norbert Ifrah, Catherine Lacombe, Pascale Cornillet-Lefebvre, Jacques Delaunay, Antoine Toubert, Christine Arnoulet, Norbert Vey, Daniel Olive
Cytogenetics and European Leukemia Net (ELN) genetic classification predict patients at increased risk of relapse in acute myeloid leukemia (AML) except in the intermediate risk group for which further prognostic determinants are required. We have previously shown that Natural Killer (NK) cell defects in AML are predictors of poor overall survival (OS). This study aimins at validating NKp30, a receptor that mediates NK activation, as a prognostic biomarker for AML patients with intermediate prognosis.NKp30 expression was prospectively assessed at diagnosis on NK cells from peripheral blood by flow cytometry (N = 201 patients)...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548937/nac1-promotes-self-renewal-of-embryonic-stem-cells-through-direct-transcriptional-regulation-of-c-myc
#20
Yan Ruan, Jianrong He, Wei Wu, Ping He, Yanping Tian, Lan Xiao, Gaoke Liu, Jiali Wang, Yuda Cheng, Shuo Zhang, Yi Yang, Jiaxiang Xiong, Ke Zhao, Ying Wan, He Huang, Junlei Zhang, Rui Jian
The pluripotency transcriptional network in embryonic stem cells (ESCs) is composed of distinct functional units including the core and Myc units. It is hoped that dissection of the cellular functions and interconnections of network factors will aid our understanding of ESC and cancer biology. Proteomic and genomic approaches have identified Nac1 as a member of the core pluripotency network. However, previous studies have predominantly focused on the role of Nac1 in psychomotor stimulant response and cancer pathogenesis...
May 10, 2017: Oncotarget
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