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https://www.readbyqxmd.com/read/28233439/flow-cytometric-analysis-as-an-additional-predictive-tool-of-treatment-response-in-children-with-chronic-phase-chronic-myeloid-leukemia-treated-with-imatinib
#1
Haruko Shima, Nobutaka Kiyokawa, Masashi Miharu, Akihiko Tanizawa, Hidemitsu Kurosawa, Akihiro Watanabe, Masaki Ito, Chikako Tono, Yuki Yuza, Hideki Muramatsu, Noriko Hotta, Masahiko Okada, Kazuko Hamamoto, Ryosuke Kajiwara, Akiko M Saito, Keizo Horibe, Shuki Mizutani, Souichi Adachi, Eiichi Ishii, Hiroyuki Shimada
Bone marrow samples of newly diagnosed children with chronic-phase chronic myeloid leukemia (CML) were obtained at diagnosis and after imatinib initiation and stained with anti-human CD34, CD38, CD123, CD45RA, cMpl, and lineage antibodies. Flow cytometric analysis revealed that granulocyte macrophage progenitor predominance in CML progenitors at diagnosis and elevated cMpl expression in bone marrow progenitors at 3 months may predict poor outcome in children with chronic-phase CML treated with imatinib. We recommend flow cytometric analysis of bone marrow in the early phase of treatment, as it is a convenient tool that may predict treatment response and guide CML management...
February 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28232743/cobll1-is-linked-to-drug-resistance-and-blastic-transformation-in-chronic-myeloid-leukemia
#2
S H Han, S-H Kim, H-J Kim, Y Lee, S-Y Choi, G Park, D-H Kim, A Lee, J Kim, J-M Choi, Y Kim, K Myung, H Kim, D-W Kim
Drug resistance to BCR-ABL1 tyrosine kinase inhibitors (TKI) and disease progression to blast crisis (BC) are major clinical problem in chronic myeloid leukemia (CML), however underlying mechanisms governing this process remain to be elucidated. Here, we report Cordon-bleu protein-like 1 (Cobll1) as a distinct molecular marker associated with drug resistance as well as progression to BC. In detail, Cobll1 increases IKKγ stability, leading to NF-κB activation and reduction of nilotinib-dependent apoptosis, suggesting Cobll1-mediated NF-κB could be involved in drug resistance...
February 24, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28222016/a-review-of-the-challenge-in-measuring-and-standardizing-bcr-abl1
#3
Shuping Yu, Ming Cui, Xiao He, Rongrong Jing, Huimin Wang
Breakpoint cluster region-Abelson (BCR-ABL1) translocation is the characteristic sign of chronic myeloid leukemia (CML). The quantitation of BCR-ABL1 messenger RNA is requisite for patients with CML, and reverse-transcription real-time quantitative polymerase chain reaction (RQ-PCR) is the method used most extensively in testing laboratories worldwide. Nevertheless, substantial variation in RQ-PCR results from different laboratories makes interlaboratory comparability inconvincible owing to the lack of standardization...
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28219836/donor-lymphocyte-infusion-for-relapsed-hematological-malignancies-after-unrelated-allogeneic-bone-marrow-transplantation-facilitated-by-the-japan-marrow-donor-program
#4
Toshihiro Miyamoto, Takahiro Fukuda, Marie Nakashima, Tomoko Henzan, Shinsuke Kusakabe, Naoki Kobayashi, Junichi Sugita, Takeshi Mori, Mineo Kurokawa, Shin-Ichiro Mori
To evaluate the safety and efficacy of donor lymphocyte infusion (DLI), we retrospectively analyzed 414 recipients who received unrelated DLI (UDLI) for the treatment of relapsed hematological malignancy after unrelated bone marrow transplantation (BMT). UDLI was administered for acute myelogenous leukemia (n=184), myelodysplastic syndrome (n=69), acute lymphocytic leukemia (n=57), chronic myelogenous leukemia (CML, n=36), lymphoid neoplasms (n=38), adult T-cell leukemia/lymphoma (n=18), and multiple myeloma (n=12)...
February 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28218239/treatment-free-remission-following-frontline-nilotinib-in-patients-with-chronic-myeloid-leukemia-in-chronic-phase-results-from-the-enestfreedom-study
#5
A Hochhaus, T Masszi, F J Giles, J P Radich, D M Ross, M T G Casares, A Hellmann, J Stentoft, E Conneally, V García-Gutiérrez, N Gattermann, W Wiktor-Jedrzejczak, P D le Coutre, B Martino, S Saussele, H D Menssen, W Deng, N Krunic, V Bedoucha, G Saglio
The single-arm, phase 2 ENESTfreedom trial (ClinicalTrials.gov, NCT01784068) assessed the potential for treatment-free remission (TFR; ie, the ability to maintain a molecular response after stopping therapy) following frontline nilotinib treatment. Patients with Philadelphia chromosome-positive chronic myeloid leukemia in chronic phase (CML-CP) with MR(4.5) (BCR-ABL1⩽0.0032% on the International Scale; BCR-ABL1(IS)) and ⩾2 years of frontline nilotinib therapy were enrolled. Patients with sustained deep molecular response during the 1-year nilotinib consolidation phase were eligible to stop treatment and enter the TFR phase...
February 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28212528/the-crispr-cas9%C3%A2-system-efficiently-reverts-the-tumorigenic-ability-of-bcr-abl-in-vitro-and-in-a-xenograft-model-of-chronic-myeloid-leukemia
#6
Ignacio García-Tuñón, María Hernández-Sánchez, José Luis Ordoñez, Veronica Alonso-Pérez, Miguel Álamo-Quijada, Rocio Benito, Carmen Guerrero, Jesús María Hernández-Rivas, Manuel Sánchez-Martín
CRISPR/Cas9 technology was used to abrogate p210 oncoprotein expression in the Boff-p210 cell line, a pro-B line derived from interlukin-3-dependent Baf/3, that shows IL-3-independence arising from the constitutive expression of BCR-ABL p210. Using this approach, pools of Boff-p210-edited cells and single edited cell-derived clones were obtained and functionally studied in vitro. The loss of p210 expression in Boff-p210 cells resulted in the loss of ability to grow in the absence of IL-3, as the Baf/3 parental line, showing significantly increased apoptosis levels...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209750/stopping-second-generation-tkis-in-cml
#7
Pierre Laneuville
No abstract text is available yet for this article.
February 16, 2017: Blood
https://www.readbyqxmd.com/read/28207569/poly-adp-ribose-polymerase-inhibition-suppresses-cisplatin-toxicity-in-chronic-myeloid-leukemia-cells
#8
Ling-Yi Xiao, Wai-Ming Kan
Cancer cells may acquire drug resistance by activating DNA repair signaling. Poly ADP-ribose polymerase (PARP) plays an important role in DNA repair and it is overexpressed in many cancers including chronic myeloid leukemia (CML). PARP inhibitors have been used either alone or with other drugs to augment cancer cell death. However, whether PARP inhibitors may also augment cell death induced by chemotherapeutic agents in CML cells has not been studied. K562 cells with or without PARP-1 knockdown were treated with cisplatin alone or together with olaparib...
March 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28205462/atypical-chronic-myeloid-leukemia-in-a-german-shepherd-dog
#9
Christina L Marino, Jimmy N S N Tran, Tracy Stokol
A 4-y-old neutered male German Shepherd Dog was presented with a 3-d duration of lethargy, restlessness, and vomiting. Physical examination revealed generalized lymphadenopathy, pale mucous membranes, systolic heart murmur, dehydration, and fever. Hematologic abnormalities included moderate-to-marked leukocytosis, characterized by neutrophilia with a left shift to progranulocytes and 2% presumptive myeloid blasts, marked anemia that was nonregenerative, and marked thrombocytopenia. Dysplasia was evident in neutrophils and platelets...
February 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28197964/up-regulated-exosomal-mirna-140-3p-in-cml-patients-with-musculoskeletal-pain-associated-with-discontinuation-of-tyrosine-kinase-inhibitors
#10
Michiyo Asano, Tomohiro Umezu, Seiichiro Katagiri, Chiaki Kobayashi, Tetsuzo Tauchi, Moritaka Gotoh, Keiko Ando, Seiichi Okabe, Junko H Ohyashiki, Kazuma Ohyashiki
We analyzed the exosomal miRNA from peripheral blood from CML patients with musculoskeletal pain after stopping tyrosine kinase inhibitors to identify possible factors related to this manifestation. Exosomal miRNA profiling using TaqMan low-density array revealed that exosomal miR-140-3p was significantly elevated in CML patients showing musculoskeletal pain, when compared to those without such pain (P = 0.0336) or healthy individuals (P = 0.0022). All five CML patients with musculoskeletal pain and increased exosomal miR-140-3p levels sustained deep molecular responses: four of them achieved symptom relief and a significant decrease in exosomal miR-140-3p levels was evident...
February 14, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28194061/performance-of-sokal-and-eutos-scores-for-predicting-cytogenetic-and-molecular-response-in-newly-diagnosed-chronic-myeloid-leukemia-chronic-phase-patients-on-imatinib
#11
Sandip Ganguly, K C Lakshmaiah, Linu Abraham Jacob, Suresh Babu, Lokanatha Dasappa, K S Govind Babu
Sokal index was developed in the pre-imatinib era to predict and prognosticate the outcome of Chronic myeloid leukemia (CML) patients. In the Imatinib era, a new scoring system called EUTOS scoring system has been validated as a predictive marker in CML. The scores have shown variable correlation with complete cytogenetic response (CCyR) and major molecular response (MMR). To assess the performance of Sokal score and EUTOS score as a predictive marker for CCyR and MMR for newly diagnosed CML-CP patients treated with TKIs...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28193723/regulation-of-hematopoiesis-and-hematological-disease-by-tgf-%C3%AE-family-signaling-molecules
#12
Kazuhito Naka, Atsushi Hirao
Throughout the lifetime of an individual, hematopoietic stem cells (HSCs) maintain the homeostasis of normal hematopoiesis through the precise generation of mature blood cells. Numerous genetic studies in mice have shown that stem-cell quiescence is critical for sustaining primitive long-term HSCs in vivo. In this review, we first examine the crucial roles of transforming growth factor β (TGF-β) and related signaling molecules in not only regulating the well-known cytostatic effects of these molecules but also governing the self-renewal capacity of HSCs in their in vivo microenvironmental niche...
February 13, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28192602/smokers-with-chronic-myeloid-leukemia-are-at-a-higher-risk-of-disease-progression-and-premature-death
#13
Michael Lauseker, Joerg Hasford, Susanne Saussele, Stephan Kremers, Doris Kraemer, Walter Lindemann, Rüdiger Hehlmann, Markus Pfirrmann
BACKGROUND: Smoking is suspected to not only be a risk factor for chronic myeloid leukemia but an adverse prognostic factor for the disease as well. The objective of the current study was to investigate the impact of smoking on survival and progression to advanced phases of disease. METHODS: Based on the data of the German CML Study IV, the authors analyzed the effect of smoking using a multivariate Cox model with the addition of the European Treatment and Outcome Study (EUTOS) long-term survival score variables of age, spleen size, thrombocytes, and peripheral blasts as well as sex, comorbidities, and type of treatment center...
February 13, 2017: Cancer
https://www.readbyqxmd.com/read/28191803/population-pharmacokinetics-of-imatinib-and-its-application-to-the-therapeutic-drug-monitoring-middle-east-cml-population
#14
Mehdi Ansari, Behjat Kalantary-Khandani, Abbas Pardakhty, Moein Safavi, Nabi Mosavi, Ehsan Mohajeri
INTRODUCTION: Despite the outstanding results generally obtained with Imatinib in the treatment of chronic myeloid leukemia, some patients show sub-optimal or no response. To evaluate the relationship between steady-state through plasma concentration and clinical response in CML patients. The objectives of this study were to assess the variability in Imatinib pharmacokinetics and to explore the effects of several demographic and biological covariates on the disposition of Imatinib. METHODS: A population pharmacokinetic analysis was performed on 170 plasma samples from 74 adult Iranian chronic myeloid leukemia patients...
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28191543/the-third-time-chronic-myeloid-leukemia-in-lymphoblastic-crisis-with-abl1-kinase-mutation-induced-by-decitabine-dexamethason-combined-with-nilotinib-and-dasatinib
#15
Suli Wang, Chun Qiao, Yu Zhu, Wenyi Shen, Guangsheng He, Jianyong Li
Blast crisis (BC) is the major remaining challenge in the management of chronic myeloid leukemia (CML). The prognosis of the BC patient who carries ABL kinase mutation is very poor. One patient, with lymphoid CML-BC third time, was detected with T315A/F359I/M244V compound mutation by direct sequencing after treatment with tyrosine kinase inhibitions three years. The patient was treated with decitabine, dexamethasone, in combination with nilotinib and dasatinib. Then this patient received a complete hematologic response and cytogenetic response after two cycles of treatment...
December 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28190859/renal-artery-stenosis-following-nilotinib-administration-in-a-patient-with-chronic-myelogenous-leukemia
#16
Mayumi Hatsuse, Yuka Daikoku, Yuta Tamoto, Masahiro Uehara, Takashi Kitani, Keiichi Tamagaki, Shin-Ichi Fuchida, Akira Okano, Satoshi Murakami, Chihiro Shimazaki
A 63-year-old male was diagnosed as having chronic phase CML in 2001. He obtained a major molecular response with imatinib (IM). In 2012, amulodipin was started for hypertension. In January 2013, IM was switched to nilotinib (NIL) in a clinical trial, and in February 2015, NIL was discontinued because MR(4.5) had been maintained for two years. One month later, he was admitted to our hospital because of headache and high blood pressure (194/108 mmHg). His urine test showed protein 3+ and occult blood 2+. His eGFR rapidly deteriorated from 45...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28186983/differentiation-status-of-primary-chronic-myeloid-leukemia-cells-affects-sensitivity-to-bcr-abl1-inhibitors
#17
Paavo O Pietarinen, Christopher A Eide, Pilar Ayuda-Durán, Swapnil Potdar, Heikki Kuusanmäki, Emma I Andersson, John P Mpindi, Tea Pemovska, Mika Kontro, Caroline A Heckman, Olli Kallioniemi, Krister Wennerberg, Henrik Hjorth-Hansen, Brian J Druker, Jorrit M Enserink, Jeffrey W Tyner, Satu Mustjoki, Kimmo Porkka
Tyrosine kinase inhibitors (TKI) are the mainstay treatment of BCR-ABL1-positive leukemia and virtually all patients with chronic myeloid leukemia in chronic phase (CP CML) respond to TKI therapy. However, there is limited information on the cellular mechanisms of response and particularly on the effect of cell differentiation state to TKI sensitivity in vivo and ex vivo/in vitro. We used multiple, independent high-throughput drug sensitivity and resistance testing platforms that collectively evaluated 295 oncology compounds to characterize ex vivo drug response profiles of primary cells freshly collected from newly-diagnosed patients with BCR-ABL1-positive leukemia (n = 40) and healthy controls (n = 12)...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28186602/-analysis-of-isodicentric-ph-chromosomes-in-chronic-myeloid-leukemia-blast-crisis
#18
Qian Li, Xiaoji Lin, Ying Lin, Rongxin Yao, Wu Huang, Handong Mei, Jian Gong, Hui Chen, Ningyan Teng
OBJECTIVE: To explore the genetic and clinical characteristics of isodicentric Ph chromosomes [idic(Ph)] in lymphoid blast crisis of chronic myeloid leukemia (CML-BLC). METHODS: Bone marrow aspirates of 2 patients with CML-BLC were analyzed by R banding after 24 hours of culturing. Genomic copy number variations (CNV) were analyzed by single nucleotide polymorphism array (SNP array) in case 1. The results were confirmed with fluorescence in situ hybridization (FISH)...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28186594/-association-of-genetic-polymorphisms-of-kir-hla-system-with-chronic-myeloid-leukemia-among-ethnic-hans-from-southern-china
#19
Zhihui Deng, Jianxin Zhen, Daming Wang, Liumei He, Hongyan Zou
OBJECTIVE: To explore the association of KIR-HLA gene polymorphism with chronic myeloid leukemia (CML) among ethnic Hans from southern China. METHODS: A total of 172 adult CML patients and 480 unrelated healthy controls were screened for the presence of KIR with sequence-specific primers-PCR (PCR-SSP) and sequence-based typing (SBT) of HLA-A, -B and -C loci. Polymorphisms of the KIR-HLA system were analyzed at 4 levels, and the frequencies of KIR framework genes and KIR profiles, classⅠHLA ligands, matched KIR+HLA pairs and KIR-HLA compound profile were compared between the two groups...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28184964/absorption-metabolism-and-excretion-of-14-c-ponatinib-after-a-single-oral-dose-in-humans
#20
Yihua E Ye, Caroline N Woodward, Narayana I Narasimhan
PURPOSE: Ponatinib is a novel tyrosine kinase inhibitor (TKI) specifically designed to inhibit native and mutated BCR-ABL. In the United States, ponatinib has received accelerated approval for adults with T315I-positive chronic myeloid leukemia (CML) or T315I (gatekeeper mutation)-positive, Philadelphia chromosome-positive, acute lymphoblastic leukemia (Ph + ALL), and patients with CML or Ph + ALL for whom no other TKI therapy is indicated. The objective of this phase 1, mass balance study was to evaluate the absorption, metabolism, and excretion of [(14)C]ponatinib in healthy subjects...
February 9, 2017: Cancer Chemotherapy and Pharmacology
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