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https://www.readbyqxmd.com/read/28212112/cancer-as-robust-intrinsic-state-shaped-by-evolution-a-key-issues-review
#1
Ruoshi Yuan, Xiaomei Zhu, Gaowei Wang, Site Li, Ping Ao
Cancer is a complex disease: its pathology cannot be properly understood in terms of independent players-genes, proteins, molecular pathways, or their simple combinations. This is similar to many-body physics of a condensed phase that many important properties are not determined by a single atom or molecule. The rapidly accumulating large 'omics' data also require a new mechanistic and global underpinning to organize for rationalizing cancer complexity. A unifying and quantitative theory was proposed by some of the present authors that cancer is a robust state formed by the endogenous molecular-cellular network, which is evolutionarily built for the developmental processes and physiological functions...
February 17, 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/28209094/attenuation-of-arsenic-trioxide-induced-cardiotoxicity-through-flaxseed-oil-in-experimental-rats
#2
Mathews V Varghese, M Abhilash, Manju Alex, M V Sauganth Paul, A Prathapan, K G Raghu, R Harikumaran Nair
OBJECTIVES: Arsenic trioxide (As2O3) is a potent drug for acute promyelocytic leukaemia, but its clinical trials are allied with some serious adverse events mainly cardiac functional abnormalities. So the objective of our investigation is to identify the cardioprotective action of flaxseed oil (FSO), a natural compound against As2O3 induced cardiotoxicity. METHODS: Male wistar rats were treated with As2O3 (4 mg/kg) to induce cardiotoxicity. FSO (250 and 500 mg/kg) was given in combination with As2O3 for evaluating its cardioprotective efficacy...
February 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28194055/treatment-of-acute-promyelocytic-leukemia-with-single-agent-arsenic-trioxide-experience-from-a-tertiary-care-center-in-india
#3
Karthik Udupa, Joseph Thomas, Chethana Babu Udupa, V S Binu, Prahlad Sharan
APML is a highly curable hematological malignancy which is treated with differentiation agents and chemotherapy. The morbidity caused by chemotherapy in the treatment of APML is a great cause of concern. We treated 12 patients with newly diagnosed APML with single agent arsenic trioxide between 2010 and 2014 irrespective of risk stratification. Out of 12 patient 2 patients died during induction. All the ten patients who completed induction, completed their consolidation and maintenance without any delays. One out of these ten patients relapsed 10 months after treatment...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28192098/anti-leukemic-effects-of-hdaci-belinostat-and-hmti-3-deazaneplanocin-a-on-human-acute-promyelocytic-leukemia-cells
#4
Giedrė Valiulienė, Ieva Stirblytė, Monika Jasnauskaitė, Veronika Borutinskaitė, Rūta Navakauskienė
Development of acute myeloid leukemia is usually sustained by deregulated epigenome. Alterations in DNA methylation and histone modifications are common manifestations of the disease. Acute promyelocytic leukemia (APL) is not an exception. Therefore, drugs that target epigenetic processes suggest an appealing strategy for APL treatment. In this study we tested the anti-leukemic activity of histone deacetylase inhibitor (HDACi) Belinostat (PXD101, (2E)-N-Hydroxy-3-[3-(phenylsulfamoyl)phenyl]prop-2-enamide), and histone methyltransferase inhibitor (HMTi) 3-Deazaneplanocin A (DZNep, 5R-(4-amino-1H-imidazo[4,5-c]pyridin-1-yl)-3-(hydroxymethyl)-3-cyclopentene-1S,2R-diol) combined with retinoic acid (RA) in APL cells NB4 and HL-60...
February 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28188923/arsenic-sulfide-induces-apoptosis-and-autophagy-through-the-activation-of-ros-jnk-and-suppression-of-akt-mtor-signaling-pathways-in-osteosarcoma
#5
Gangyang Wang, Tao Zhang, Wei Sun, Hongsheng Wang, Fei Yin, Zhuoying Wang, Dongqing Zuo, Mengxiong Sun, Zifei Zhou, Binhui Lin, Jing Xu, Yingqi Hua, Haoqing Li, Zhengdong Cai
Osteosarcoma is a common primary malignant bone tumor, the cure rate of which has stagnated over the past 25-30 years. Arsenic sulfide (As2S2), the main active ingredient of the traditional Chinese medicine realgar, has been proved to have antitumor efficacy in several tumor types including acute promyelocytic leukemia, gastric cancer and colon cancer. Here, we investigated the efficacy and mechanism of As2S2 in osteosarcoma both in vitro and in vivo. In this study, we demonstrated that As2S2 potently suppressed cell proliferation by inducing G2/M phase arrest in various osteosarcoma cell lines...
February 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28183680/diagnosis-of-variant-rara-translocation-using-standard-dual-color-dual-fusion-pml-rara-fish-probes-an-illustrative-report
#6
Manish K Singh, Mayur Parihar, Neeraj Arora, D K Mishra, Saurabh J Bhave, Mammen Chandy
Acute promyelocytic leukemia (APML) with variant RARa translocations comprises 1-2% of APML cases. However, the diagnosis of these cases is challenging as the routine practice includes fluorescence in situ hybridization (FISH) reverse transcription polymerase chain reaction targeting the PML and RARA genes to detect PML/RARA fusions. Here, we report a case highlighting the importance of atypical FISH signal patterns in standard dual-color dual-fusion PML/RARa FISH analysis complimented by karyotyping to detect these variant RARA translocations...
February 1, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28176226/evaluation-of-the-safety-and-efficacy-of-recombinant-soluble-thrombomodulin-for-patients-with-disseminated-intravascular-coagulation-associated-with-acute-leukemia-multicenter-prospective-study-by-the-tohoku-hematology-forum
#7
Hisayuki Yokoyama, Naoto Takahashi, Yuna Katsuoka, Mitsue Inomata, Toshihiro Ito, Kuniaki Meguro, Yoshihiro Kameoka, Riko Tsumanuma, Kazunori Murai, Hideyoshi Noji, Kenichi Ishizawa, Shigeki Ito, Yasushi Onishi, Hideo Harigae
It has been suggested that use of recombinant soluble thrombomodulin (rTM) is superior to conventional drugs in treatment of disseminated intravascular coagulation (DIC) complicating acute leukemia. However, its safety and efficacy have not been fully examined in prospective studies. Here, we performed a multicenter prospective study to examine outcomes of rTM treatment for DIC in patients with acute leukemia. Of 33 patients registered in this study, 13 had acute myeloid leukemia (AML), three had acute lymphoblastic leukemia (ALL), and 17 had acute promyelocytic leukemia (APL)...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28152872/racial-and-ethnic-disparities-in-the-survival-of-adolescents-and-young-adults-aya-with-acute-myeloid-leukemia-aml
#8
Adam C Bartley, Ronald S Go
: 297 Background: Unlike acute lymphoblastic leukemia, no studies have examined the effect of race on survival among AML in AYA using national data. METHODS: We studied patients in the US National Cancer Data Base aged 15-39 diagnosed with AML from 2001-2011 (excluding acute promyelocytic leukemia). AMLs harboring inv(16) or t(8;21) were defined as good-risk. We examined overall survival (OS) according to race/ethnicity and survival trends over three time-periods: 2001-2004, 2005-2008, and 2009-2011...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28148693/correction-a-promyelocytic-leukemia-protein-thrombospondin-2-axis-and-the-risk-of-relapse-in-neuroblastoma
#9
(no author information available yet)
No abstract text is available yet for this article.
February 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28143738/manipulating-pml-sumoylation-via-silencing-ubc9-and-rnf4-regulates-cardiac-fibrosis
#10
Yu Liu, Dan Zhao, Fang Qiu, Ling-Ling Zhang, Shang-Kun Liu, Yuan-Yuan Li, Mei-Tong Liu, Di Wu, Jia-Xin Wang, Xiao-Qing Ding, Yan-Xin Liu, Chang-Jiang Dong, Xiao-Qi Shao, Bao-Feng Yang, Wen-Feng Chu
The promyelocytic leukemia protein (PML) is essential in the assembly of dynamic subnuclear structures called PML nuclear bodies (PML-NBs), which are involved in regulating diverse cellular functions. However, the possibility of PML being involved in cardiac disease has not been examined. In mice undergoing transverse aortic constriction (TAC) and arsenic trioxide (ATO) injection, transforming growth factor β1 (TGF-β1) was upregulated along with dynamic alteration of PML SUMOylation. In cultured neonatal mouse cardiac fibroblasts (NMCFs), ATO, angiotensin II (Ang II), and fetal bovine serum (FBS) significantly triggered PML SUMOylation and the assembly of PML-NBs...
January 28, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28132911/effect-of-alpha-lipoic-acid-on-leukotriene-a4-hydrolase
#11
María José Torres, Angélica Fierro, C David Pessoa-Mahana, Javier Romero-Parra, Gonzalo Cabrera, Mario Faúndez
Leukotriene A4 hydrolase is a soluble enzyme with epoxide hydrolase and aminopeptidase activities catalysing the conversion of leukotriene A4 to leukotriene B4 and the hydrolysis of the peptide proline-glycine-proline. Imbalances in leukotriene B4 synthesis are related to several pathologic conditions. Currently there are no available drugs capable to modulate the synthesis of leukotriene B4 or to block its receptors. Here we show the inhibitory profile of alpha lipoic acid on the activity of leukotriene A4 Hydrolase...
January 26, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28130038/autophagy-contributes-to-4-amino-2-trifluoromethyl-phenyl-retinate-induced-differentiation-in-human-acute-promyelocytic-leukemia-nb4-cells
#12
Yue Li, Ge Li, Ke Wang, Ya-Ya Xie, Ren-Peng Zhou, Yao Meng, Ran Ding, Jin-Fang Ge, Fei-Hu Chen
As a classic differentiation agent, all-trans retinoic acid (ATRA) has been widely used in treatment of acute promyelocytic leukemia (APL). However, clinical application of ATRA has limitations. Our previous studies suggested that 4-Amino-2-Trifluoromethyl-Phenyl Retinate (ATPR), a novel all-trans retinoic acid (ATRA) derivative designed and synthesized by our team, could induce differentiation of APL cells in vivo and in vitro. To explore the underlying mechanism of ATPR, the effect of ATPR on autophagy of APL cells was observed in the present study...
January 25, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28129653/rxr%C3%AE-ligand-z-10-induces-pml-rar%C3%AE-cleavage-and-apl-cell-apoptosis-through-disrupting-pml-rar%C3%AE-rxr%C3%AE-complex-in-a-camp-independent-manner
#13
Lin Xu, Zhiping Zeng, Weidong Zhang, Gaoang Ren, Xiaobin Ling, Fengyu Huang, Peizhen Xie, Ying Su, Xiao-Kun Zhang, Hu Zhou
The major oncogenic driver of acute promyelocytic leukemia (APL) is the fusion protein PML-RARα originated from the chromosomal translocation t(15;17). All-trans retinoic acid (ATRA) and arsenic trioxide cure most patients by directly targeting PML-RARα. However, major issues including the resistance of ATRA and arsenic therapy still remain in APL clinical management. Here we showed that compound Z-10, a nitro-ligand of retinoid X receptor α (RXRα), strongly promoted the cAMP-independent apoptosis of both ATRA- sensitive and resistant NB4 cells via the induction of caspase-mediated PML-RARα degradation...
January 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28125133/acute-wt1-positive-promyelocytic-leukemia-with-hypogranular-variant-morphology-bcr-3-isoform-of-pml-rar%C3%AE-and-flt3-itd-mutation-a-rare-case-report
#14
Xi Zhang, Cheng Yang, Xiangui Peng, Xinghua Chen, Yimei Feng
CONTEXT: Acute promyelocytic leukemia (APL) accounts for 8% to 10% of cases of acute myeloid leukemia (AML). Remission in cases of high-risk APL is still difficult to achieve, and relapses occur readily. CASE REPORT: Here, we describe a case of APL with high white blood cell counts in blood tests and hypogranular variant morphology in bone marrow, together with fms-like tyrosine kinase-3 with internal tandem duplication mutations (FLT3-ITD), and bcr-3 isoform of PML-RARα...
January 23, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28125064/phenylarsine-oxide-can-induce-the-arsenite-resistance-mutant-pml-protein-solubility-changes
#15
Yu Han Jiang, Ye Jia Chen, Chao Wang, Yong Fei Lan, Chang Yang, Qian Qian Wang, Liaqat Hussain, Yasen Maimaitiying, Khairul Islam, Hua Naranmandura
Arsenic trioxide (As₂O₃) has recently become one of the most effective drugs for treatment of patient with acute promyelocytic leukemia (APL), and its molecular mechanism has also been largely investigated. However, it has been reported that As₂O₃ resistant patients are frequently found in relapsed APL after consolidation therapy, which is due to the point mutations in B-box type 2 motifs of promyelocytic leukemia (PML) gene. In the present study, we for the first time establish whether organic arsenic species phenylarsine oxide (PAO) could induce the mutant PML-IV (A216V) protein solubility changes and degradation...
January 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28114716/-very-severe-differentiation-syndrome-in-low-risk-acute-promyelocytic-leukemia-a-peril-of-differentiating-therapy
#16
Anna Hecht, Joerg Mezger, Martina Gnadler, Eva Lengfelder
History, examinations and diagnosis A young patient consulted the hospital because of spontaneous hematomas. The combination of pancytopenia and coagulopathy in the blood and the proving cytogenetic and moleculargenetic examinations of the bone marrow lead to the diagnosis of low-risk acute promyelocytic leukemia (APL). Therapy and clinical course During the combination therapy with ATRA and ATO, the patient developed a severe differentiation syndrome and hyperleukocytosis. Management of the condition was only possible due to clinical expertise and massive substitution of blood products and clotting factors...
January 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28111878/first-experience-of-the-aml-berlin-frankfurt-m%C3%A3-nster-group-in-pediatric-patients-with-standard-risk-acute-promyelocytic-leukemia-treated-with-arsenic-trioxide-and-all-trans-retinoid-acid
#17
Ursula Creutzig, Michael N Dworzak, Konrad Bochennek, Jörg Faber, Christian Flotho, Norbert Graf, Udo Kontny, Claudia Rossig, Irene Schmid, Arend von Stackelberg, Jans-Enno Mueller, Christine von Neuhoff, Dirk Reinhardt, Nils von Neuhoff
Recently, studies in adults with acute promyelocytic leukemia (APL) showed high cure rates in low-risk patients treated with all-trans retinoid acid (ATRA) and arsenic trioxide (ATO), while toxicities were significantly reduced compared to the standard treatment with ATRA and chemotherapy. Here we report about first experience with 11 pediatric patients with low-risk APL treated with ATRA and ATO. All patients stayed in molecular remission. All suffered from hyperleukocytosis. Two patients experienced reversible severe side effects...
January 23, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28111514/new-acetylenic-derivatives-of-betulin-and-betulone-synthesis-and-cytotoxic-activity
#18
REVIEW
Ewa Bębenek, Monika Kadela-Tomanek, Elwira Chrobak, Joanna Wietrzyk, Joanna Sadowska, Stanisław Boryczka
Betulin 1 and its semisynthetic derivatives exhibit a cytotoxic activity toward various cancer cell lines. These compounds are a promising and potential anticancer candidates. A series of betulin derivatives was prepared and tested for the antiproliferative activity in vitro against T47D breast cancer, CCRF/CEM leukemia, HL-60 promyelocytic leukemia, SW707 colorectal, murine P388 leukemia, as well as BALB3T3 normal fibroblasts cell lines. Cisplatin and betulin 1 were used as a reference compounds. Some derivatives of betulin showed a higher cytotoxic activity than the parent compound 1...
2017: Medicinal Chemistry Research
https://www.readbyqxmd.com/read/28111175/acute-promyelocytic-leukemia-after-treatment-of-metastatic-castration-resistant-prostate-cancer-with-radium-223
#19
Ugochukwu Odo, Ashwin K Vasudevamurthy, Oliver Sartor
No abstract text is available yet for this article.
December 29, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28110321/recent-advances-in-arsenic-trioxide-encapsulated-nanoparticles-as-drug-delivery-agents-to-solid-cancers
#20
Akhtar Anam, Wang Scarlet Xiaoyan, Ghali Lucy, Bell Celia, Wen Xuesong
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
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