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https://www.readbyqxmd.com/read/28636094/characterization-of-clonal-philadelphia-negative-cytogenetic-abnormalities-in-a-large-cohort-of-chronic-myeloid-leukemia
#1
Xiangjun Chen, Jine Zheng, Kaiwei Liang, Yanli He, Wen Du, Juan Li, Wei Liu, Yanjie Hu, Junxia Yao
OBJECTIVES: Clonal Philadelphia-negative Cytogenetic Abnormalities (CPCA) have been reported in chronic myeloid leukaemia (CML) patients treated with either interferon or tyrosine kinase inhibitor (TKI). However, the incidences and types of these cytogenetic abnormalities after treatment vary due to the limited populations enrolled. METHODS: We analysed the frequency and types of CPCA in a cohort of 607 CML patients in the chronic phase after TKI treatment. We also followed up these CPCA with a median of 31...
June 21, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28631564/indole-3-carbinol-induces-apoptosis-of-chronic-myelogenous-leukemia-cells-through-suppression-of-stat5-and-akt-signaling-pathways
#2
Majid Safa, Leila Jafari, Fatemeh Alikarami, Rima Manafi Shabestari, Ahmad Kazemi
Signal transducer and activator of transcription 5 and Akt pathways, implicated in signaling transduction downstream of BCR-ABL, play critical roles in the pathogenesis of chronic myeloid leukemia. Therefore, idenication of novel compounds that modulate the activity of such pathways could be a new approach in the treatment of chronic myeloid leukemia. Previous studies have demonstrated that indole-3-carbinol inhibits the proliferation and induces apoptosis of various tumor cells. However, its anticancer activity against chronic myeloid leukemia cells and the underlying mechanism remain unclear...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28627443/impact-of-the-bcr-abl1-fusion-transcripts-on-different-responses-to-imatinib-and-disease-recurrence-in-iranian-patients-with-chronic-myeloid-leukemia
#3
Golale Rostami, Mohammad Hamid, Hasan Jalaeikhoo
BACKGROUND: One genomic breakpoint can result in variable BCR-ABL1 transcript types due to alternative splicing. The influence of different BCR-ABL1 transcript types on clinical outcome is still controversial. AIM OF THE STUDY: The objective of this analysis was to determine the impact of transcript type on response, clinical outcome, recurrence risk after treatment with Imatinib mesylate in Chronic Myeloid Leukemia (CML) patients. METHODS: Sixty CML patients in chronic phase were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) and banding standard protocols...
June 13, 2017: Gene
https://www.readbyqxmd.com/read/28626381/nilotinib-induced-acute-pancreatitis-in-a-patient-with-chronic-myeloid-leukemia
#4
Vihang Patel, Anil Pattisapu, Karim Attia, John Weiss
Nilotinib, a second-generation tyrosine kinase inhibitor, is used for treatment of chronic myeloid leukemia (CML); it has been widely used especially for imatinib-resistant CML. Despite being a novel drug in this therapeutic class, it has the potential to be harmful. We present the case of an elderly woman who developed life-threatening acute pancreatitis as an adverse event after having started the drug. There is only one reported case in the literature of nilotinib-induced acute pancreatitis. The purpose of this case report is to educate physicians who prescribe this medication to be aware of potential life-threatening adverse events...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28624905/reduced-intensity-allogeneic-hematopoietic-stem-cell-transplantation-combined-with-imatinib-has-comparable-event-free-survival-and-overall-survival-to-long-term-imatinib-treatment-in-young-patients-with-chronic-myeloid-leukemia
#5
Yanmin Zhao, Jiasheng Wang, Yi Luo, Jimin Shi, Weiyan Zheng, Yamin Tan, Zhen Cai, He Huang
The relative merits of reduced intensity hematopoietic stem cell transplantation (RIST) for chronic myeloid leukemia (CML) in the first chronic phase (CP) in imatinib era have not been evaluated. The study was designed to compare the outcomes of combination therapy of RIST plus imatinib (RIST + IM) vs. imatinib (IM) alone for young patients with early CP (ECP) and late CP (LCP). Of the patients, 130 were non-randomly assigned to treatment with IM alone (n = 88) or RIST + IM (n = 42). The 10-year overall survival (OS) and event-free survival (EFS) were comparable between RIST + IM and IM groups...
June 17, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28623130/leukotriene-signaling-via-alox5-and-cysteinyl-leukotriene-receptor-1-is-dispensable-for-in%C3%A2-vitro-growth-of-cd34-cd38-stem-and-progenitor-cells-in-chronic-myeloid-leukemia
#6
Monika Dolinska, Alexandre Piccini, Wan Man Wong, Eleni Gelali, Anne-Sofie Johansson, Johannis Klang, Pingnan Xiao, Elham Yektaei-Karin, Ulla Olsson Strömberg, Satu Mustjoki, Leif Stenke, Marja Ekblom, Hong Qian
Tyrosine kinase inhibitors targeting the BCR-ABL oncoprotein in chronic myeloid leukemia (CML) are remarkably effective inducing deep molecular remission in most patients. However, they are less effective to eradicate the leukemic stem cells (LSC), resulting in disease persistence. Therefore, there is great need to develop novel therapeutic strategies to specifically target the LSC. In an experimental mouse CML model system, the leukotriene pathway, and specifically, the expression ALOX5, encoding 5-lipoxygenase (5-LO), has been reported as a critical regulator of the LSC...
June 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28622138/cellular-and-plasma-nitrite-levels-in-myeloid-leukemia-a-pathogenetic-decrease
#7
Mili Jain, Ashutosh Kumar, Uma Shankar Singh, Rashmi Kushwaha, Abhishek Kumar Singh, Madhu Dikshit, Anil Kumar Tripathi
Nitric oxide (NO) has contributory role in hemopoietic cell growth and differentiation. The effects of NO on leukemic cell growth have been predominantly studied in in vitro settings. This study was done to assess the alterations in nitrite level in myeloid leukemias.Thirty six newly diagnosed cases of myeloid leukemia (16 AML and 20 CML) were enrolled in the study. Neutrophil precursors from the marrow aspirate and peripheral blood were separated into cell bands using Percoll density gradient method of Borregard and Cowland...
June 15, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28620185/c-abl-regulates-gastrointestinal-muscularis-propria-homeostasis-via-erks
#8
Jinnan Xiang, Yiqun Zhang, Dandan Bao, Na Cao, Xin Zhang, Ping Li, Shoutao Qiu, Jigang Guo, Dan He, Baojie Li, Liqing Yao, Huijuan Liu
The gastrointestinal tract is responsible for food digestion and absorption. The muscularis propria propels the foodstuff through the GI tract and defects in intestine motility may cause obstruction disorders. Our present genetic studies identified non-receptor tyrosine kinase c-Abl as an important regulator of the muscularis propria homeostasis and a risk factor for rectal prolapse. Mouse deficient for c-Abl showed defects in the muscularis propria of gastrointestinal tract and older c-Abl (-/-) mice developed megaesophagus and rectal prolapse...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617066/patient-perceptions-of-treatment-free-remission-in-chronic-myeloid-leukemia
#9
Lucia A Villemagne Sanchez, Clare O'Callaghan, Karla Gough, Karen Hall, Yoshihisa Kashima, John F Seymour, Penelope Schofield, David M Ross
Around half of patients with chronic myeloid leukemia (CML) who achieve a stable deep molecular response would remain in treatment-free remission (TFR) if their tyrosine kinase inhibitors (TKIs) were stopped. TFR is increasingly becoming a goal of treatment. Eighty-seven patients answered a survey exploring patient perceptions of TFR, incorporating CML-specific factors (disease history, treatment toxicity, and adherence) and questions concerning health beliefs. 81% of participants (95% CI: 72%-89%) indicated that they would be willing to attempt TFR...
June 15, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28615140/imaging-features-of-myeloproliferative-neoplasms
#10
REVIEW
I G Murphy, E L Mitchell, L Raso-Barnett, A L Godfrey, E M Godfrey
Myeloproliferative neoplasms (MPNs) are a heterogeneous group of haematological disorders including polycythaemia vera (PV), essential thrombocythaemia (ET), primary myelofibrosis (PMF), and chronic myeloid leukaemia (CML). These disorders show large overlap in genetic and clinical presentations, and can have many different imaging manifestations. Unusual thromboses, embolic events throughout the systemic or pulmonary vasculature, or osseous findings can often be clues to the underlying disease. There is limited literature about the imaging features of these disorders, and this may result in under-diagnosis...
June 11, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28612580/new-genetic-variation-in-bcr-gene-of-major-b3a2-breakpoint-bcr-abl-fusion-gene-in-patients-with-chronic-myelogenous-leukemia-in-yogyakarta-indonesia
#11
Tri Agusti Sholikah, Susanna Hilda Hutajulu, Dewi Sulistyawati, Sumartiningsih Aning, Sri Fatmawati, Anditta Syifarahmah, Kartika Widayati, Johan Kurnianda, Dewi Kartikawati Paramita
Background: Polymorphic bases in several exons of the BCR gene have been found in several studies of the BCR-ABL fusion gene . Most of the polymorphisms do not have any implications for the primary structure of the BCR-ABL protein. Nucleotide changes are often located in the area close to the fusion region, and therefore may influence primer annealing. Our previous work failed to amplify 15 of 200 samples from BCR-ABL positive chronic myelogenous leukemia (CML) patients using multiplex PCR, the standard method to detect BCR-ABL transcripts used in our institution...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28608152/recovering-from-chronic-myeloid-leukemia-the-patients-perspective-seen-through-the-lens-of-narrative-medicine
#12
G Graffigna, I Cecchini, M Breccia, E Capochiani, R Della Seta, S Galimberti, A Melosi, F Simonetti, M Pizzuti, S F Capalbo, F Falzetti, P Mazza, N Di Renzo, L Mastrullo, D Rapezzi, E Orlandi, T Intermesoli, A Iurlo, E Pungolino, M Pacilli
PURPOSE: The main objective of this study is to gain a deeper understanding of how patients suffering from chronic myeloid leukemia (CML) cope with their illness. The study aims to reconstruct the subjective meaning-making process related to CML in order to gain insights into the impact the disease has on patients' emotions and everyday lives, as well as to explore the psychological impact of their being presented with the chance to suspend their therapy and recover from the disease. METHODS: Data were gathered from a qualitative study conducted in Italy on 158 Italian CML patients...
June 12, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28604385/differential-requirements-for-myeloid-leukemia-ifn-%C3%AE-conditioning-determine-graft-versus-leukemia-resistance-and-sensitivity
#13
Catherine Matte-Martone, Jinling Liu, Meng Zhou, Maria Chikina, Douglas R Green, John T Harty, Warren D Shlomchik
The graft-versus-leukemia (GVL) effect in allogeneic hematopoietic stem cell transplantation (alloSCT) is potent against chronic phase chronic myelogenous leukemia (CP-CML), but blast crisis CML (BC-CML) and acute myeloid leukemias (AML) are GVL resistant. To understand GVL resistance, we studied GVL against mouse models of CP-CML, BC-CML, and AML generated by the transduction of mouse BM with fusion cDNAs derived from human leukemias. Prior work has shown that CD4+ T cell-mediated GVL against CP-CML and BC-CML required intact leukemia MHCII; however, stem cells from both leukemias were MHCII negative...
June 12, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28602946/whole-genome-analysis-reveals-unexpected-dynamics-of-mutant-subclone-development-in-a-patient-with-jak2-v617f-positive-chronic-myeloid-leukemia
#14
I Sloma, M Mitjavila-Garcia, O Feraud, F Griscelli, N Oudrhiri, S El Marsafy, E Gobbo, D Divers, A Proust, D M Smadja, C Desterke, A Carles, Y Ma, M Hirst, M A Marra, C J Eaves, A Bennaceur-Griscelli, A G Turhan
We report here the first use of whole genome sequencing (WGS) to examine the initial clonal dynamics in an unusual patient with chronic myeloid leukemia (CML) who presented in chronic phase (CP) with doubly marked BCR-ABL1(+)/JAK2(V617F)-mutant cells and over a 9 year period progressed into an accelerated phase (AP) and then terminal blast phase (BP). WGS showed the diagnostic cells also contained mutations in ASXL1, SEC23B, MAD1L1 and RREB1, as well as 12,000 additional uncommon DNA variants. WGS of endothelial cells generated from circulating precursors revealed many of these were shared with the CML clone...
June 7, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28601068/prevalence-of-autoantibodies-against-3-dg-glycated-h2a-protein-in-type-2-diabetes
#15
J M Ashraf, S M S Abdullah, S Ahmad, S Fatma, M H Baig, J Iqbal, A M Madkhali, A B A Jerah
Advanced glycation end-products (AGEs) have been found to be critically involved in initiation or progression of diabetes secondary complications (nephropathy, retinopathy, neuropathy, and angiopathy). Various hyper-glycating carbonyl compounds such as 3-deoxyglucosone (3-DG) are produced in pathophysiological conditions that form AGEs in high quantity both in vivo and in vitro. In the first stage of this study, we glycated histone H2A protein by 3-DG, and the results showed the formation of various intermediates and AGEs as well as structural changes in the protein...
May 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28599500/notable-roles-of-ezh2-and-dnmt1-in-epigenetic-dormancy-of-the-shp1-gene-during-the-progression-of-chronic-myeloid-leukaemia
#16
Jing Wang, Luoming Hua, Ming Guo, Lin Yang, Xiaojun Liu, Yanmeng Li, Xiaoyan Shang, Jianmin Luo
Tumor development is associated with the methylation of cytosine-guanine (CpG) islands. The occurrence of methylation requires several factors, such as DNA methylation systems and polycomb group (PcG) proteins. At present, novel drugs are needed for the treatment of chronic myeloid leukaemia (CML), particularly considering the current prognosis of CML. The methylation status of the Src homology 2 domain-containing tyrosine phosphatase 1 (SHP1) gene, a negative regulator of signal transduction, has been identified as being altered in numerous haematological malignancies...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599273/targeting-bcr-abl-stem-progenitor-cells-and-bcr-abl-t315i-mutant-cells-by-effective-inhibition-of-the-bcr-abl-tyr177-grb2-complex
#17
Min Chen, Ali G Turhan, Hongxia Ding, Qingcong Lin, Kun Meng, Xiaoyan Jiang
Treatment of BCR-ABL+ human leukemia has been significantly improved by ABL tyrosine kinase inhibitors (TKIs), but they are not curative for most patients and relapses are frequently associated with BCR-ABL mutations, warranting new targets for improved treatments. We have now demonstrated that protein expression of human estrogen receptor alpha 36 (ERα36), an alternative splicing variant of human estrogen receptor alpha 66 (ERα66), is highly increased in TKI-insensitive CD34+ chronic myeloid leukemia (CML) cells and BCR-ABL-T315I mutant cells, and is abnormally localized in plasma membrane and cytoplasm...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28596647/audio-vestibular-status-in-cml-patients-on-imatinib-mesylate-with-review-of-literature
#18
Rijuneeta Gupta, Uday Yanamandra, Bhumika Gupta, Naresh K Panda, Subhash Varma, Anu Nagarkar, Pankaj Malhotra
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm occasionally presenting with features of leukostasis as primary symptoms. Hearing loss is occasionally reported in CML patients. Further whether Imatinib mesylate has any effect on vestibular functions is not known. We conducted a preliminary study to assess hearing pattern in patients with CML on long term TKI therapy. This is a single center, cross sectional study from northern-India. Patients of CML who were on regular Tyrosine kinase inhibitors (TKI) therapy for at least 6 months underwent audiovestibular evaluation ...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28595903/shc004-221a1-a-novel-tyrosine-kinase-potently-inhibits-t315i-mutant-bcr-abl-in-chronic-myeloid-leukemia
#19
Duowei Wang, Yan Zheng, Jiaying Li, Hongxi Wu, Xianjing Li, Ying Tang, Yang Liu, Jiani Li, Rui Sun, Youli Zhou, Jihong Sun, Yong Yang
Although judicious use of tyrosine kinase inhibitors that target BCR-ABL constitutes an effective strategy for the control of chronic myeloid leukemia (CML), drug resistance is observed due to kinase domain mutations, among which a major one is BCR-ABL(T315I). In this study, we identified SHC004-221A1 as a potent inhibitor of T315I and other BCR-ABL mutants. Biochemical assays demonstrated that SHC004-221A1 has an inhibitory effect on all selected BCR-ABL mutants. In vitro studies showed that SHC004-221A1 inhibited the proliferation of tumor cell lines carrying native and T315I mutant BCR-ABL...
June 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28591106/the-biology-of-cml-supports-second-generation-tkis-as-frontline-treatment
#20
Carmen Fava, Giuseppe Saglio
No abstract text is available yet for this article.
April 2017: Clinical Advances in Hematology & Oncology: H&O
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