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Acute promyelocyte leukemia

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https://www.readbyqxmd.com/read/28921713/chebulinic-acid-isolated-from-the-fruits-of-terminalia-chebula-specifically-induces-apoptosis-in-acute-myeloid-leukemia-cells
#1
Stuti Chhabra, Tripti Mishra, Yogesh Kumar, Gatha Thacker, Sanjeev Kanojiya, Naibedya Chattopadhyay, Tadigoppula Narender, Arun Kumar Trivedi
Chebulinic acid, an ellagitannin found in the fruits of Terminalia chebula, has been extensively used in traditional Indian system of medicine. It has shown to have various biological activities including antitumor activity. The present study aims to investigate the cytotoxic potential of chebulinic acid in human myeloid leukemia cells. Interestingly, chebulinic acid caused apoptosis of acute promyelocytic leukemia HL-60 and NB4 cells but not K562 cells. In vitro antitumor effects of chebulinic acid were investigated by using various acute myeloid leukemia cell lines...
September 18, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28919785/biomarker-analysis-and-clinical-relevance-of-tk1-on-the-cell-membrane-of-burkitt-s-lymphoma-and-acute-lymphoblastic-leukemia
#2
Evita G Weagel, Wei Meng, Michelle H Townsend, Edwin J Velazquez, Rachel A Brog, Michael W Boyer, K Scott Weber, Richard A Robison, Kim L O'Neill
TK1 is an enzyme involved in DNA synthesis and repair. TK1 is usually found elevated in cancer patients' serum, which makes it a useful tumor proliferation biomarker that strongly correlates with cancer stage, metastatic capabilities, and recurrence risk. In this study, we show that TK1 is upregulated and localizes on the plasma membrane of Burkitt's lymphoma, acute promyelocytic leukemia, T cell leukemia, and acute lymphoblastic leukemia (ALL). Using flow cytometry, we confirmed that TK1 localizes on the surface of Raji, HL60, and Jurkat cell lines and on ALL clinical samples...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28868348/targeting-pseudokinase-trib3-brings-about-a-new-therapeutic-option-for-acute-promyelocytic-leukemia
#3
Ke Li, Feng Wang, Zhuo-Wei Hu
Pseudokinase tribbles (Trib) family, Trib1 and Trib2, but not Trib3, act as oncogene to drive acute leukemia by destabilizing the myeloid transcription factor CCAAT/enhancer-binding protein α (C/EBPα) and inhibiting myeloid differentiation. A recent study identifies pseudokinase TRIB3 as an important factor in acute promyelocytic leukemia (APL) progression and therapy resistance. Targeting TRIB3 may provide a novel therapeutic approach for APL.
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28865123/kaempferol-increases-apoptosis-in-human-acute-promyelocytic-leukemia-cells-and-inhibits-multidrug-resistance-genes
#4
Maliheh Moradzadeh, Alijan Tabarraei, Hamid Reza Sadeghnia, Ahmad Ghorbani, Ashraf Mohamadkhani, Saiedeh Erfanian, Amirhossein Sahebkar
Acute promyelocytic leukemia (APL) is one of the most life-threatening hematological malignancies. Defects in the cell growth and apoptotic pathways are responsible for both disease pathogenesis and treatment resistance. Therefore, pro-apoptotic agents are potential candidates for APL treatment. Kaempferol is a flavonoid with antioxidant and anti-tumor properties. This study was designed to investigate the cytotoxic, pro-apoptotic and differentiation-inducing effects of kaempferol on HL-60 and NB4 leukemia cells...
September 2, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28856623/jsh-guideline-for-tumors-of-hematopoietic-and-lymphoid-tissues-leukemia-2-acute-promyelocytic-leukemia-apl
#5
Norio Asou, Hiroyuki Fujita, Katsuji Shinagawa
No abstract text is available yet for this article.
August 30, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28838264/comparative-genomic-analysis-of-pml-and-rara-breakpoints-in-paired-diagnosis-relapse-samples-of-patients-with-acute-promyelocytic-leukemia-treated-with-all-trans-retinoic-acid-and-chemotherapy
#6
Licia Iaccarino, Tiziana Ottone, Syed Khizer Hasan, Mariadomenica Divona, Laura Cicconi, Serena Lavorgna, Valentina Alfonso, Giuseppe Basso, Eva Barragán, Monica Bocchia, Eduardo Magalhaes Rego, David Grimwade, Maria Teresa Voso, Francesco Lo-Coco
No abstract text is available yet for this article.
August 24, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28832326/bernard-j-weil-m-boiron-m-jacquillat-c-flandrin-g-gemon-m-f-acute-promyelocytic-leukemia-results-of-treatment-by-daunorubicin-blood-1973-41-4-489-496
#7
(no author information available yet)
No abstract text is available yet for this article.
October 6, 2016: Blood
https://www.readbyqxmd.com/read/28831491/a-switchable-3d-liquid-liquid-biconvex-lens-with-enhanced-resolution-using-dean-flow
#8
L Liang, X Q Zhu, H L Liu, Y Shi, Y Yang
Liquid-liquid (L(2)) microlenses have great potential for various applications in imaging and detection systems. Traditional L(2) microlenses are almost two-dimensional (2D) due to the modulation of flow rates in planer chips. Fundamental difficulties in effective application to cell imaging and analysis arise due to the limitations of 2D profiles. Herein, we demonstrate the feasible design of three-dimensional (3D) L(2) biconvex lenses to detect flowing cells. Using the auxiliary curved microchannels, a 3D L(2) lens is formed using Dean flow...
August 23, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28831476/phenylarsine-oxide-pao-induces-apoptosis-in-hepg2-cells-via-ros-mediated-mitochondria-and-er-stress-dependent-signaling-pathways
#9
Ping Huang, Yu Hua Zhang, Xiao Wei Zheng, Yu Jia Liu, Hong Zhang, Luo Fang, Yi Wen Zhang, Chang Yang, Khairul Islam, Chao Wang, Hua Naranmandura
Arsenic trioxide (As2O3) is an old drug that has recently been reintroduced as a therapeutic agent for acute promyelocytic leukemia (APL). Although As2O3 is also applied to treat other types of cancer in vitro and in vivo, it has been reported that single agent As2O3 has poor efficacy against non-hematologic malignant cancers in clinical trials. Recently, a few reports have indicated that organic arsenic compounds can be a possible alternative for the treatment of As2O3-resistant cancers. In this study, we aimed to investigate whether the organic arsenic compound phenylarsine oxide (PAO) has potent cytotoxic effects against human hepatocellular carcinoma (HCC) HepG2 cells...
August 23, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28830803/acute-promyelocytic-leukemia-in-a-patient-with-chronic-lymphocytic-leukemia-a-case-report
#10
Prajwal Boddu, Ellen Schlette, Beenu Thakral, Guillin Tang, Naveen Pemmaraju, Tapan Kadia, Alessandra Ferrajoli, Farhad Ravandi, William Wierda, Nitin Jain
Chronic lymphocytic leukemia (CLL) is known to be associated rarely with myeloid malignancies such as acute myelogenous leukemia. In this article, we report an extremely rare occurrence of acute promyelocytic leukemia in a patient with CLL. A 71-year-old man first presented to our clinic with a diagnosis of CLL and worsening motor neuropathy symptoms. It was suspected that his CLL might be contributing to the neuropathy as a paraneoplastic syndrome, and he was treated with rituximab monotherapy in weekly doses for the 1st month and monthly treatments thereafter...
August 16, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28823055/effectivity-of-a-modified-sanz-risk-model-for-early-death-prediction-in-patients-with-newly-diagnosed-acute-promyelocytic-leukemia
#11
Yinjun Lou, Yafang Ma, Jianai Sun, Sansan Suo, Hongyan Tong, Wenbin Qian, Wenyuan Mai, Haitao Meng, Jie Jin
Early death is the main obstacle for the cure of patients with acute promyelocytic leukemia (APL). We have analyzed risk factors of early death from 526 consecutive newly diagnosed APL patients between 2004 and 2016. The overall incidence of early death was 7.2% (38/526). The peak hazard of early death occurred in the first 0-3 days. Multivariate logistic analysis demonstrated white blood cell (WBC) counts [odds ratio (OR) = 1.039; 95% confidence interval (CI): 1.024-1.055; P < 0.001], age (OR = 1...
August 19, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28814164/cpx-351-in-acute-myeloid-leukemia-can-a-new-formulation-maximize-the-efficacy-of-old-compounds
#12
Claudia Brunetti, Luisa Anelli, Antonella Zagaria, Giorgina Specchia, Francesco Albano
The management of Acute Myeloid Leukemia (AML) (with the exception of acute promyelocytic leukemia) has remained largely unchanged over the past 40 years. In particular, patients defined as high-risk, according to the 2017 European Leukemia Net recommendations, represent a subgroup with poor response to current therapies that are frequently associated with high-grade toxicity and potentially fatal complications. Areas covered: Preliminary results from an ongoing phase III clinical trial suggest that CPX-351 could represent an interesting treatment option in both induction and 'bridge-to-transplant' settings...
August 24, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28810326/-the-analysis-of-prognosis-associated-factors-in-adults-with-acute-promyelocytic-leukemia
#13
R J Ma, Z M Zhu, X L Yuan, L Jiang, S W Yang, J Yang, J M Guo, J Shi, P C Lei, L Zhang, B J Shang, K Sun, Y P Zhai, W Li, Y Zhang
Objective: To explore the prognostic value of CD34, CD2, CD56 expressions and FLT3-ITD mutation in adults with acute promyelocytic leukemia (APL) . Methods: The immuno-phenotypic and molecular characteristics of 137 adult patients with APL (from January 2010 to March 2016, in Henan Provincial People's Hospital) were investigated. And the relationships between CD34, CD2, CD56 expressions, FLT3-ITD mutation and the outcomes of high WBC counts at onset, complete remission (CR) rate, early mortality, relapse rate (RR) , overall survival (OS) , disease free survival (DFS) were explored...
July 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28809551/direct-speciation-analysis-of-arsenic-in-whole-blood-and-blood-plasma-at-low-exposure-levels-by-hydride-generation-cryotrapping-inductively-coupled-plasma-mass-spectrometry
#14
Tomáš Matoušek, Zhifeng Wang, Christelle Douillet, Stanislav Musil, Miroslav Stýblo
A method for analysis of toxicologically important arsenic species in blood plasma and whole blood by selective hydride generation with cryotrapping (HG-CT) coupled either to atomic absorption spectrometry (AAS) with a quartz multiatomizer or to inductively coupled plasma mass spectrometry (ICPMS) has been validated. Sample preparation, which involved only 5 times dilution with addition of Triton X-100, Antifoam B, and l-cysteine, suppressed excessive foaming in a hydride generator. Calibration slopes for whole blood and blood plasma spiked with arsenate, monomethylarsonate, and dimethylarsinate at 0...
August 28, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28808212/recent-advances-in-arsenic-trioxide-encapsulated-nanoparticles-as-drug-delivery-agents-to-solid-cancers
#15
Anam Akhtar, Scarlet Xiaoyan Wang, Lucy Ghali, Celia Bell, Xuesong Wen
Since arsenic trioxide was first approved as the front line therapy for acute promyelocytic leukemia 25 years ago, its anti-cancer properties for various malignancies have been under intense investigation. However, the clinical successes of arsenic trioxide in treating hematological cancers have not been translated to solid cancers. This is due to arsenic's rapid clearance by the body's immune system before reaching the tumor site. Several attempts have henceforth been made to increase its bioavailability toward solid cancers without increasing its dosage albeit without much success...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28804680/treatment-of-older-patients-with-acute-myeloid-leukemia-aml-revised-canadian-consensus-guidelines
#16
REVIEW
Joseph M Brandwein, Nancy Zhu, Rajat Kumar, Brian Leber, Mitchell Sabloff, Irwindeep Sandhu, Jeannine Kassis, Harold J Olney, Mohamed Elemary, Andre C Schuh
The treatment of acute myeloid leukemia (AML) in older patients is undergoing rapid changes, with a number of important publications in the past five years. Because of this, a group of Canadian leukemia experts has produced an update to the Canadian Consensus Guidelines that were published in 2013, with several new agents recommended, subject to availability. Recent studies have supported the survival benefit of induction chemotherapy for patients under age 80, except those with major co-morbidities or those with adverse risk cytogenetics who are not candidates for allogeneic hematopoietic stem cell transplantation (HSCT)...
2017: American Journal of Blood Research
https://www.readbyqxmd.com/read/28800701/a-new-indole-derivative-decreased-sall4-gene-expression-in-acute-promyelocytic-leukemia-cell-line-nb4
#17
Zahra Sheikhrezaei, Parisa Heydari, Alireza Farsinezhad, Ahmad Fatemi, Soudeh Khanamani Falahati-Pour, Shokoofeh Darakhshan, Mojgan Noroozi Karimabad, Ali Darekordi, Hossein Khorramdelazad, Gholamhossein Hassanshahi
Background: Acute myeloblastic leukemia (AML) is a clonal disorder due to bone marrow failure and uncontrolled proliferation of myeloid lineage. Acute promyelocytic leukemia (APL) is a subtype of AML. Heterocyclic compounds, such as indole, are considered as attractive candidates for cancer therapy, due to their abundance in nature and known biological activity. Sal-like protein (SALL4) is a zinc finger transcription factor involving in the multi-potency of stem cells, in the NB4 cell line...
August 12, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28800422/cytotoxic-lanostane-triterpenoids-from-the-fruiting-bodies-of-piptoporus-betulinus
#18
Zeynep Tohtahon, Jingjing Xue, Jianxin Han, Yushuang Liu, Huiming Hua, Tao Yuan
Chemical investigation of a bioactive methanolic extract of the fruiting bodies of Piptoporus betulinus led to the isolation of five previously undescribed lanostane triterpenoids named piptolinic acids A-E, as well as five known lanostane triterpenoids. Their structures were elucidated on the basis of 1D and 2D NMR spectroscopic and HRESIMS analysis. Piptolinic acid A with an unusual moiety (3-hydroxy-4-methoxycarbonyl-3-methylbutyryloxy) at C-3 exhibited comparable cytotoxic activity against human promyelocytic leukemia cell line HL-60 (IC50 = 1...
August 8, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28776567/-retinoic-acid-and-arsenic-trioxide-sensitize-acute-promyelocytic-leukemia-cells-to-er-stress
#19
S Masciarelli, E Capuano, T Ottone, M Divona, S De Panfilis, C Banella, N I Noguera, A Picardi, G Fontemaggi, G Blandino, F Lo-Coco, F Fazi
Retinoic acid (RA) in association with chemotherapy or with arsenic trioxide (ATO) results in high cure rates of acute promyelocytic leukemia (APL). We show that RA-induced differentiation of human leukemic cell lines and primary blasts dramatically increases their sensitivity to ER stress- inducing drugs at doses that are not toxic in the absence of RA. In addition, we demonstrate that the PERK pathway, triggered in response to ER stress, plays a major protective role. Moreover, low amounts of pharmacologically induced ER stress, are sufficient to strongly increase ATO toxicity...
August 4, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28768059/-epicatechin-rescues-the-as2-o3-induced-herg-k-channel-deficiency-possibly-through-upregulating-transcription-factor-sp1-expression
#20
Zengxiang Dong, Yuanqi Shi, Lifang Feng, Zhaoqian Shen, Li Fang, Sijia Zheng, Xin Hai, Baoxin Li
(-)-Epicatechin (EPI) has beneficial effects on the cardiovascular disease. The human ether-a-go-go-related gene (HERG) potassium channel is crucial for repolarization of cardiac action potential. Dysfunction of the HERG channel can cause long QT syndrome type 2 (LQT2). Arsenic trioxide (As2 O3 ) has shown efficacy in the treatment of acute promyelocytic leukemia. However, As2 O3 can induce the deficiency of HERG channel and cause LQT2. In this study, we examined whether EPI could rescue the As2 O3 -induced HERG channel deficiency...
August 2, 2017: Journal of Biochemical and Molecular Toxicology
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