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chronic myelogenous leukemia

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https://www.readbyqxmd.com/read/28107692/rna-binding-protein-msi2-positively-regulates-flt3-expression-in-myeloid-leukemia
#1
Ayuna Hattori, Daniel McSkimming, Natarajan Kannan, Takahiro Ito
FLT3 is frequently mutated and overexpressed in acute myelogenous leukemia (AML) and other hematologic malignancies. Although signaling events downstream of FLT3 receptor tyrosine kinase has been studied in depth, molecular mechanisms of how FLT3 expression is regulated at the post-transcriptional level in particular remain elusive. In this study, we investigated the roles of an RNA binding protein MSI2 as a regulator of FLT3 expression. MSI2 and FLT3 are significantly co-regulated in human AML and chronic myelogenous leukemia in blast crisis (BC-CML)...
January 11, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28103766/long-term-exposure-to-imatinib-mesylate-downregulates-hippo-pathway-and-activates-yap-in-a-model-of-chronic-myelogenous-leukemia
#2
Anna Chorzalska, Javier Flores Kim, Karim Roder, Alexander Tepper, Nagib Ahsan, R Shyama Prasad Rao, Adam J Olszewski, Xiaoqing Yu, Dmitry Terentyev, John Morgan, Diana O Treaba, Ting Zhao, Olin Liang, Philip Gruppuso, Patrycja Dubielecka
Despite the success of tyrosine kinase inhibitor (TKI) therapy in chronic myelogenous leukemia (CML), leukemic stem/progenitor cells remain detectable even in the state of deep molecular remission. Mechanisms that allow them to persist despite continued kinase inhibition remain unclear. We have previously shown that prolonged exposure to imatinib mesylate results in dysregulation of Akt/Erk 1/2 signaling, upregulation of miR-181a, enhanced adhesiveness, and resistance to high imatinib mesylate. In order to characterize the molecular basis and reversibility of those effects, we applied gene and protein expression analysis, quantitative phosphoproteomic, and direct miR-181a inhibition to our cellular model of CML cells subjected to prolonged exposure to imatinib mesylate...
January 19, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28101208/effect-of-bovine-dialyzable-leukocyte-extract-on-induction-of-cell-differentiation-and-death-in-k562-human-chronic-myelogenous-leukemia-cells
#3
Crystel A Sierra-Rivera, Moisés A Franco-Molina, Edgar Mendoza-Gamboa, Pablo Zapata-Benavides, Jesús Santaolalla-Tapia, Erika E Coronado-Cerda, Reyes S Tamez-Guerra, Cristina Rodríguez-Padilla
Differentiation induction therapy is an attractive approach in leukemia treatment due to the fact that in blast crisis stage, leukemic cells lose their differentiation capacity. Therefore, it has been proposed as a therapeutic strategy to induce terminal differentiation of leukemic blast cells into a specific lineage, leading to prevention of high proliferation rates. The aim of the present study was to demonstrate the potential of cell differentiation and death induced by bovine dialyzable leukocyte extract (bDLE) in the K562 cell line...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28092869/chronic-myelogenous-leukemia-evolving-after-treatment-of-multiple-myeloma
#4
Denise Wolleschak, Florian H Heidel
No abstract text is available yet for this article.
July 7, 2016: Blood
https://www.readbyqxmd.com/read/28072759/induction-of-k562-cell-apoptosis-by-as4s4-via-down-regulating-mir181
#5
Jiangjiang Gong, Shunli Zheng, Lei Zhang, Yi Wang, Jiali Meng
BACKGROUND Chronic myelogenous leukemia (CML) has unsatisfactory treatment efficacy at present. As the major component of red orpiment, tetra-arsenic tetra-sulfide (As4S4) has been recently used in treating leukemia, but with unclear mechanism targeting CML. MicroRNA (miR) is a group of endogenous non-coding RNAs regulating pathogenesis. MiR181 has been shown to exert important roles in tumor progression. The relationship between miR181 and As4S4 in inducing K562 cell apoptosis, however, is still unclear. MATERIAL AND METHODS CML cell line K562 was cultured in vitro in a control group and in groups receiving various dosages (20 μM and 40 μM) of As4S4...
January 10, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28069070/successful-management-of-synchronous-recurrent-breast-carcinoma-with-chronic-myelogenous-leukemia-a-case-report
#6
Choukri Elm'hadi, Mohamed Reda Khmamouche, Rachid Tanz, Mehdi Toreis, ElMehdi Mahtat, Mohammed Allaoui, Mohammed Oukabli, Nezha Messaoudi, Hassan Errihani, Mohammed Ichou
BACKGROUND: Survival is increasing after early breast cancer revealing frequent relapses and possibility of developing secondary malignancies. The concomitant occurrence of these two events is exceptionally disastrous and lethal. We report a case of a Moroccan woman who was successfully managed for synchronous recurrent breast carcinoma and chronic myelogenous leukemia. CASE PRESENTATION: A 42-year-old Moroccan woman was diagnosed with localized breast carcinoma in 2008...
January 10, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28062906/programmed-cell-death-1-pathway-inhibition-in-myeloid-malignancies-implications-for-myeloproliferative-neoplasms
#7
REVIEW
D C Choi, D Tremblay, C Iancu-Rubin, J Mascarenhas
Myeloproliferative neoplasms (MPNs) are clonal hematopoietic diseases that belong to the spectrum of myeloid malignancies (MyMs), which also include myelodysplastic syndromes (MDS), acute myeloid leukemia (AML), and chronic myelogenous leukemia (CML). While hematopoietic stem cell transplantation (HSCT) is a potentially curative therapeutic approach to many MyMs, the associated morbidity and mortality have necessitated the development of non-HSCT therapeutics for symptom management and disease course modification...
January 6, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28056193/reduced-cd62l-expression-on-t-cells-and-increased-soluble-cd62l-levels-predict-molecular-response-to-tyrosine-kinase-inhibitor-therapy-in-early-chronic-phase-chronic-myelogenous-leukemia
#8
Sieghart Sopper, Satu Mustjoki, Deborah White, Timothy Hughes, Peter Valent, Andreas Burchert, Bjørn T Gjertsen, Günther Gastl, Matthias Baldauf, Zlatko Trajanoski, Frank Giles, Andreas Hochhaus, Thomas Ernst, Thomas Schenk, Jeroen J W M Janssen, Gert J Ossenkoppele, Kimmo Porkka, Dominik Wolf
Purpose Immunologic surveillance of minimal residual disease in chronic myelogenous leukemia (CML) may be relevant for long-term control or cure of CML. Little is known about immune-modulatory effects of nilotinib in vivo, potentially predicting response to therapy. Patients and Methods A prospective and comprehensive flow cytometry-based immunomonitoring program paralleled the ENEST1st clinical study, investigating 52 nilotinib-naïve patients with chronic-phase CML. Data were verified in independent validation cohorts...
January 10, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28049288/the-role-of-early-molecular-predictor-in-transplant-eligible-chronic-myelogenous-leukemia
#9
Sung-Hyun Kim
No abstract text is available yet for this article.
January 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28044941/design-synthesis-and-biological-evaluation-of-a-phenyl-butyric-acid-derivative-n-4-chlorophenyl-4-phenylbutanamide-a-hdac6-inhibitor-with-anti-proliferative-activity-on-cervix-cancer-and-leukemia-cells
#10
Rodríguez-Fonseca Rolando Alberto, Sixto-López Yudibeth, Fragoso-Vázquez M Jonathan, Flores-Mejía Raúl, Cabrera-Pérez Laura Cristina, Vázquez-Moctezuma Ismael, Rosales-Hernández Martha Cecilia, Bello Martiniano, M Martínez-Archundia, Trujillo-Ferrara José Guadalupe, Becerra-Martínez Elvia, Correa-Basurto José
The epigenetic regulation of genes in cancer could be targeted by inhibiting Histone deacetylase 6 (HDAC6), an enzyme involved in several types of cancer such as lymphoma, leukemia, ovarian cancer, etc. Through in silico methods, a set of Phenyl butyric acid derivatives with possible HDAC6 inhibitory activity were designed, rendering monophenylamides and biphenylamides using tubacin (HDAC6 selective inhibitor) as reference. The target compounds were submitted to theoretical ADMET analyses and their binding properties on different HDAC6 conformers were evaluated through docking calculations...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28035415/mirna-301a-induces-apoptosis-of-chronic-myelogenous-leukemia-cells-by-directly-targeting-timp2-erk1-2-and-akt-pathways
#11
Xianbao Huang, Ling Qi, Wei Lu, Gangping Yang, Yan Chen, Rongyan Zhang, Jia Rao, Dexiang Ji, Ruibin Huang, Guoan Chen
We investigated the biological functions and mechanism of miRNA‑301a on apoptosis in chronic myelogenous leukemia (CML). The expression of miRNA‑301a in patient with CML cells was higher than the expression of normal patients. Overall survival (OS) of chronic granulocytic leukemia cell patient with low miRNA‑301 expression was superior to that of CML patient with high miRNA‑301 expression. Moreover, the upregulation of miRNA‑301a increased cell proliferation, inhibited apoptosis and caspase-3 and -9 activity of K562 cells...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/27983802/photoelectrochemical-dna-biosensor-based-on-dual-signal-amplification-strategy-integrating-inorganic-organic-nanocomposites-sensitization-with-%C3%AE-exonuclease-assisted-target-recycling
#12
Xiao-Mei Shi, Gao-Chao Fan, Qingming Shen, Jun-Jie Zhu
Sensitive and accurate analysis of DNA is crucial to better understanding of DNA functions and early diagnosis of fatal disease. Herein, an enhanced photoelectrochemical (PEC) DNA biosensor was proposed based on dual-signal amplification via coupling inorganic-organic nanocomposites sensitization with λ-exonuclease (λ-Exo)-assisted target recycling. The short DNA sequence about chronic myelogenous leukemia (CML, type b3a2) was selected as target DNA (tDNA). ZnO nanoplates were deposited with CdS nanocrystals to form ZnO/CdS hetero-nanostructure, and it was used as PEC substrate for immobilizing hairpin DNA (hDNA)...
December 28, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27971690/modelling-the-economic-impact-of-implementing-treatment-free-remission-tfr-in-philadelphia-ph-chronic-myelogenous-leukemia-in-chronic-phase-cml-cp-patients-treated-in-first-line-1l-with-the-tyrosine-kinase-inhibitors-tki-imatinib-and-nilotinib
#13
E Sauvage, J Duco, S Nizard, S Arroum, F Mahon, P Kuizenga, J Ricci
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27957861/codelivery-of-ponatinib-and-sar302503-by-active-bone-targeted-polymeric-micelles-for-the-treatment-of-therapy-resistant-chronic-myeloid-leukemia
#14
Chao-Feng Mu, Yang Xiong, Xue Bai, Yun-Jie Sheng, Jiajun Cui
Point mutations in the BCR-ABL1 domain and primitive chronic myelogenous leukemia (CML) cells existing in the bone marrow environment insensitive to tyrosine kinase inhibitors (TKIs) have become two major challenges in the CML therapy. In this study, combined TKI ponatinib and JAK2 inhibitor SAR302503 short-term treatment effectively suppressed growth and promoted apoptosis of BaF3/T315I cells in cytokine-containing medium in vitro. SAR302503 prevented cytokine-dependent resistance to ponatinib via inhibition of JAK2/STAT5 phosphorylation...
January 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27957376/case-report-of-a-child-after-hematopoietic-cell-transplantation-with-acute-aspergillus-tracheobronchitis-as-a-cause-for-respiratory-failure
#15
Stefanie Gauguet, Kate Madden, Jennifer Wu, Christine Duncan, Gi Soo Lee, Tonya Miller, William C Klingensmith, Sandra K Burchett, Meredith van der Velden
Rapid respiratory failure due to invasive mycosis of the airways is an uncommon presentation of Aspergillus infection, even in immunocompromised patients, and very few pediatric cases have been reported. Patients with Aspergillus tracheobronchitis present with nonspecific symptoms, and radiologic studies are often noninformative, leading to a delay in diagnosis. Prompt initiation of adequate antifungal therapies is of utmost importance to improve outcome. We report the case of a 9-year-old girl with chronic myelogenous leukemia who developed respiratory distress 41 days after hematopoietic cell transplantation and rapidly deteriorated despite multiple interventions and treatment modalities...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27941281/development-of-aml-without-karyotype-abnormalities-including-the-ph-chromosome-in-a-cml-patient-on-second-generation-tki-therapy
#16
Toshiro Sakai, Yuichi Konuma, Saori Shimoyama, Kyuhei Kohda
A 58-year-old man was diagnosed with accelerated phase chronic myelogenous leukemia (CML). He was treated with dasatinib and followed-up; 6 months later, he achieved a complete molecular response. Seventeen months after this therapy, he developed pancytopenia, and was examined. His diagnosis was Ph-negative acute myeloid leukemia (AML) with no karyotype abnormalities. He was administered two courses of induction chemotherapy, and during the first remission, he received allogeneic hematopoietic stem cell transplantation...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27933484/dna-as-a-target-for-anticancer-phen-imidazole-pd-ii-complexes
#17
Maryam Heydari, Mahboube Eslami Moghadam, AliAkbar Tarlani, Hossein Farhangian
Imidazole ring is a known structure in many natural or synthetic drug molecules and its metal complexes can interact with DNA and do the cleavage. Hence, to study the influence of the structure and size of the ligand on biological behavior of metal complexes, two water-soluble Pd(II) complexes of phen and FIP ligands (where phen is 1,10-phenanthroline and FIP is 2-(Furan-2-yl)-1H-Imidazo[4,5-f][1, 10]phenanthroline) with the formula of [Pd(phen)(FIP)](NO3)2 and [Pd(FIP)2]Cl2, that were activated against chronic myelogenous leukemia cell line, K562, were selected...
December 8, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27930381/chronic-localized-fibrosing-leukocytoclastic-vasculitis-associated-with-lymphedema-intralymphatic-and-intravascular-lymphocytosis-and-chronic-myelogenous-leukemia-a-case-report-of-unilateral-erythema-elevatum-diutinum
#18
Juliana Atallah, Juan C Garces, Enrique Loayza, John A Carlson
One of the pathogenic causes of cutaneous inflammatory pseudotumors is chronic localized fibrosing leukocytoclastic vasculitis (CLFLCV), a vasculitic reaction pattern seen in granuloma faciale (GF), a localized vasculitis, and erythema elevatum diutinum (EED), a generalized vasculitis. Patients with myelodysplastic syndromes (MDSs) are at risk for a diverse spectrum of cutaneous neutrophilic dermatoses such as EED. Herein, we report a 74-year-old man who presented with a large ulcerative, fungating tumor affecting the right flexor ankle caused by CLFLCV...
December 7, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27908776/3-geranyl-mono-substituted-chalcone-xanthoangelovl-induces-apoptosis-in-human-leukemia-k562%C3%A2-cells-via-activation-of-mitochondrial-pathway
#19
Yuou Teng, Lixin Wang, Huan Liu, Yuan Yuan, Qian Zhang, Meng Wu, Luyao Wang, Haomeng Wang, Zhen Liu, Peng Yu
3'-Geranyl-mono-substituted chalcone Xanthoangelol (1b), a chalcone derivative, was previously reported to show selective cytotoxicity against human chronic myelogenous leukemia K562 cells with a half-maximal inhibitory concentration (IC50) of 3.98 μM. In the present study, we investigated the molecular mechanism underlying the cytotoxicity of 1b in K562 cells. Treatment with compound 1b caused K562 cells to adopt a typical apoptotic morphology. Flow cytometric analysis also confirmed the presence of an apoptotic cell population following treatment of Annexin-V-FITC and propidium iodide (PI) double-labeled K562 cells with 1b...
January 5, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27908221/dasatinib-prevent-hepatic-fibrosis-induced-by-carbon-tetrachloride-ccl4-via-anti-inflammatory-and-antioxidant-mechanism
#20
Adel Mohammadalipour, Jamshid Karimi, Iraj Khodadadi, Ghasem Solgi, Mohammad Hashemnia, Nasrin Sheikh, Majid Bahabadi
OBJECTIVES: Dasatinib, a potent and broad-spectrum tyrosine kinase inhibitor, is approved for the treatment of imatinib-resistant chronic myelogenous leukemia. The aim of this study was to evaluate the anti-fibrotic, anti-inflammatory and antioxidant effects of this agent against CCl4-induced hepatic fibrosis and oxidative status. MATERIALS AND METHODS: Experimental fibrosis was induced in Wistar male rats by 12 weeks of CCl4 administration (i.p.). During the last 8 weeks of injection, rats were gavaged daily with Dasatinib (10 mg/kg)...
December 1, 2016: Immunopharmacology and Immunotoxicology
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