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chronic myelogenous leukemia

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https://www.readbyqxmd.com/read/28730166/impact-of-chromosomal-rearrangement-upon-dna-methylation-patterns-in-leukemia
#1
Hyang-Min Byun, Shahrooz Eshaghian, Dan Douer, Jonathen Trent, Guillermo Garcia-Manero, Ravi Bhatia, Kim Siegmund, Allen S Yang
Genomic instability, including genetic mutations and chromosomal rearrangements, can lead to cancer development. Aberrant DNA methylation occurs commonly in cancer cells. The aim of this study is to determine the effects of a specific chromosomal lesion the BCR-ABL translocation t(9:22), in establishing DNA methylation profiles in cancer. Materials and methods We compared DNA methylation of 1,505 selected promoter CpGs in chronic myelogenous leukemia (CML), acute lymphoblastic leukemia (ALL) with and without the Philadelphia chromosome t(9:22), CD34+ hematopoietic stem cells transfected with BCR-ABL, and other tumors without BCR-ABL (acute promyelocytic leukemia (APL) and gastrointestinal stromal tumors (GIST)...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28729178/elevated-cardiovascular-disease-risk-in-patients-with-chronic-myelogenous-leukemia-seen-in-community-based-oncology-practices-in-the-united-states
#2
Anna D Coutinho, Dinara Makenbaeva, Eileen Farrelly, Pamela B Landsman-Blumberg, Daniel Lenihan
INTRODUCTION: Current National Comprehensive Cancer Network guidelines recommend that comorbidities, including cardiovascular disease (CVD), be considered when selecting tyrosine kinase inhibitors for the treatment of chronic myelogenous leukemia (CML). We report here the prevalence of CVD and its risk factors in patients with CML treated by community-based United States (US) oncologists. PATIENTS AND METHODS: Adult patients with a confirmed diagnosis of CML and ≥ 1 encounter after the first date of CML diagnosis in an electronic medical record database between January 1, 2005 and October 31, 2014 were enrolled...
June 17, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28719608/cholesterol-esterification-inhibition-and-imatinib-treatment-synergistically-inhibit-growth-of-bcr-abl-mutation-independent-resistant-chronic-myelogenous-leukemia
#3
Shovik Bandyopadhyay, Junjie Li, Elie Traer, Jeffrey W Tyner, Amy Zhou, Stephen T Oh, Ji-Xin Cheng
Since the advent of tyrosine kinase inhibitors (TKIs) such as imatinib, nilotinib, and dasatinib, chronic myelogenous leukemia (CML) prognosis has improved greatly. However, ~30-40% of patients develop resistance to imatinib therapy. Although most resistance is caused by mutations in the BCR-ABL kinase domain, 50-85% of these patients develop resistance in the absence of new mutations. In these cases, targeting other pathways may be needed to regain clinical response. Using label-free Raman spectromicroscopy, we evaluated a number of leukemia cell lines and discovered an aberrant accumulation of cholesteryl ester (CE) in CML, which was found to be a result of BCR-ABL kinase activity...
2017: PloS One
https://www.readbyqxmd.com/read/28716444/thiosemicarbazone-derivatives-thiazolyl-hydrazones-effectively-inhibit-leukemic-tumor-cell-growth-down-regulation-of-ribonucleotide-reductase-activity-and-synergism-with-arabinofuranosylcytosine
#4
Geraldine Graser-Loescher, Agnes Schoenhuber, Caroline Ciglenec, Sabine Eberl, Georg Krupitza, Robert M Mader, Surender Singh Jadav, Venkatesan Jayaprakash, Monika Fritzer-Szekeres, Thomas Szekeres, Philipp Saiko
Cellular growth inhibition exerted by thiosemicarbazones is mainly attributed to down-regulation of ribonucleotide reductase (RNR) activity, with RNR being responsible for the rate-limiting step of de novo DNA synthesis. In this study, we investigated the antineoplastic effects of three newly synthesized thiosemicarbazone derivatives, thiazolyl hydrazones, in human HL-60 promyelocytic leukemia cells. The cytotoxicity of compounds alone and in combination with arabinofuranosylcytosine (AraC) was determined by growth inhibition assays...
July 14, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28706591/interferon-related-pericarditis-review
#5
Kazuaki Nishio, Tsutomu Arase, Hiroko Tada, Hideaki Tachibana
AIM: To conduct a review of "interferon related pericarditis". METHODS: We searched MEDLINE, EMBASE, Cinahl, and the Cochrane Database from the earliest available date through September 2016. A search strategy using the Medical Subject Headings and text keywords "interferon" and "pericarditis" were used. RESULTS: Nine case reports were eligible for the present study. Six of 8 cases were women and the mean age was 43.8 ± 13.8 years with chronic hepatitis C in 6 cases, malignant melanoma in 2 cases and chronic myelogenous leukemia in 1 case...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28704165/specific-monoclonal-antibody-against-bcr-abl-out-of-frame-alternative-proteins-as-diagnostic-tool-in-chronic-myelogenous-leukemia-patients
#6
Claudia Casnici, Katia Crotta, Gisella Volpe, Cristina Panuzzo, Donatella Lattuada, Giulia Mesiano, Giuseppe Saglio, Ornella Marelli
More recently, alternative splicing of specific genes are investigated for their therapeutic potential. In particular, we reported the existence of BCR-ABL alternative splicing isoforms, in about 80% of Philadelphia-positive patients, which lead to the expression of aberrant proteins. These fusion proteins are characterized by an orphan initial and correct Bcr portion attached to a 112 amino acid sequence, arising from the impairment in the reading frame (reading of ABL exon 4 and 5). We demonstrated that these Abl-out-of-frame (OOF) isoforms could have an immunological role with therapeutic implications...
July 13, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28700330/translocation-of-heme-oxygenase-1-contributes-to-imatinib-resistance-in-chronic-myelogenous-leukemia
#7
Bianca Schaefer, Soenke Behrends
Heme oxygenase-1 (HO-1) degrades heme to bilirubin. In addition, it is upregulated in malignant disease and has been described as an important factor for cancer prognosis and therapy. Under physiological conditions HO-1 is anchored to the endoplasmic reticulum (ER). Under stress conditions HO-1 can be cleaved and subsequently translocates to the cytosol and nucleus.In this study we systematically investigated the influence of HO-1's catabolic activity and subcellular localization on resistance against the tyrosine kinase inhibitor imatinib in leukemia cells by confocal laser scanning microscopy, hemoglobin synthesis experiments and cell viability assays...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28698860/genomic-profiling-of-chronic-myelogenous-leukemia-basic-and-clinical-approach
#8
REVIEW
Aliasghar Keramatinia, Alireza Ahadi, Mohammad Esmaeil Akbari, Maryam Mohseny, Alireza Mosavi Jarahi, Narjes Mehrvar, Neda Mansouri, S A Mortazavi Tabatabaei, Abolfazl Movafagh
Chronic myeloid leukemia (CML) is a hematological stem cell cancer driven by BCR-ABL1 fusion protein. We review the previous and recent evidence on the significance of CML in diagnostic and clinic management. The technical monitoring of BCR-ABL1 with quantitative real time-PCR has been used in assessing patient outcome. The cytogenetic mark of CML is Philadelphia chromosome, that is formed by reciprocal chromosomal translocations between human chromosome 9 and 22, t(9:22) (q(34):q(11)). It makes a BCR-ABL1 fusion protein with an anomaly tyrosine kinase activity that promotes the characteristic proliferation of progenitor cells in CML and acute lymphoblastic lymphoma...
June 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28698852/acute-megakaryoblastic-blast-crisis-as-a-presentation-manifestation-of-chronic-myelogenous-leukemia
#9
Jenna B Bhattacharya, Richa Gupta, Amit Samadhiya
No abstract text is available yet for this article.
June 2017: Blood Research
https://www.readbyqxmd.com/read/28698448/-a-case-of-chronic-myelogenous-leukemia-that-developed-fibrous-pericarditis-owing-to-nilotinib-use
#10
Shogo Miura, Kazuyuki Murase, Akira Sakurada, Kohichi Takada, Satoshi Iyama, Tsutomu Sato, Yasushi Sato, Koji Miyanishi, Masayoshi Kobune, Atsuko Muranaka, Kazutoshi Tachibana, Junji Kato
A 64-year-old man was diagnosed with chronic-phase chronic myelogenous leukemia(CML)in May 2009. He was treated with imatinib and achieved complete cytogenetic response(CCyR)in 2 months. After 4 months of treatment, he developed interstitial pneumonia and became intolerant to imatinib. He was then switched to nilotinib from October of the same year. In June 2013, he was diagnosed with drug-induced pericarditis resulting from nilotinib use, and thus, nilotinib was discontinued. Subsequently, he was followed up without specific treatment for CML...
June 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28695468/in-vitro-antiproliferative-study-of-novel-adamantyl-pyridin-4-ones
#11
V Petrović Peroković, Ž Car, T Opačak-Bernardi, I Martin-Kleiner, M Kralj, S Tomić
The preparation of several N-aryl-substituted (phenyl, p-methylphenyl, p-methoxyphenyl, p-nitrophenyl, p-aminophenyl, p-hydroxyphenyl) 3-hydroxy-2-methylpyridin-4-ones as well as their adamantyl derivatives is described, and their in vitro antitumor properties were investigated. The compounds were synthesized in good yields using efficient synthetic routes and methods. Prepared derivatives were evaluated in an antiproliferative in vitro study on 4 cancer cell lines, namely HCT 116 (colon carcinoma), H 460 (lung carcinoma), MCF-7 (breast carcinoma) and K562 (chronic myelogenous leukemia)...
July 10, 2017: Molecular Diversity
https://www.readbyqxmd.com/read/28693140/acute-myeloid-leukemia-with-t-3-21-q26-2-q22-developing-following-low-dose-methotrexate-therapy-for-rheumatoid-arthritis-and-expressing-two-aml1-mds1-evi1-fusion-proteins-a-case-report
#12
Keisuke Tanaka, Gaku Oshikawa, Hiroki Akiyama, Shinya Ishida, Toshikage Nagao, Masahide Yamamoto, Osamu Miura
The t(3;21)(q26.2;q22) translocation is a rare chromosomal abnormality exhibited almost exclusively in therapy-related myelodysplastic syndrome/acute myeloid leukemia (t-MDS/AML) or in the blastic crisis phase of chronic myelogenous leukemia, which results in the fusion of the runt related transcription factor 1 (RUNX1, also called AML1) gene at 21q22 to the myelodysplasia syndrome 1 (MDS1)-ecotropic virus integration site 1 (EVI1) complex locus (MECOM) at 3q26.2, generating various fusion transcripts, including AML1/MDS1/EVI1 (AME)...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28690936/a-case-of-imatinib-induced-hepatitis
#13
Osman Bhatty, Mohammad Selim, Thamer Kassim, Lakshmi Chintalacheruvu, Manuel Urra, Sonia Shah, Joseph Haggerty, John Gross, Aravdeep Jhand, Gene Pershwitz, Jaya Gupta
A 71-year-old female with a past medical history of Philadelphia chromosome-positive chronic myelogenous leukemia on imatinib therapy, Sjogren's syndrome, and hypothyroidism presents with acute hepatitis. After a comprehensive workup ruling out viral, infectious and metabolic etiologies imatinib is stopped which results in immediate improvement. The biopsy is consistent with drug-induced liver damage; the patient is started on oral prednisone and discharged. Unfortunately, our patient's liver function does not improve over the course of the next week and she is readmitted for hepatic and renal failure...
June 1, 2017: Curēus
https://www.readbyqxmd.com/read/28682311/platinum-pyrithione-induces-apoptosis-in-chronic-myeloid-leukemia-cells-resistant-to-imatinib-via-dub-inhibition-dependent-caspase-activation-and-bcr-abl-downregulation
#14
Xiaoying Lan, Chong Zhao, Xin Chen, Peiquan Zhang, Dan Zang, Jinjie Wu, Jinghong Chen, Huidan Long, Li Yang, Hongbiao Huang, Xuejun Wang, Xianping Shi, Jinbao Liu
Chronic myelogenous leukemia (CML) is characterized by the chimeric tyrosine kinase Bcr-Abl. T315I Bcr-Abl is the most notorious point mutation to elicit acquired resistance to imatinib (IM), leading to poor prognosis. Therefore, it is urgent to search for additional approaches and targeting strategies to overcome IM resistance. We recently reported that platinum pyrithione (PtPT) potently inhibits the ubiquitin-proteasome system (UPS) via targeting the 26 S proteasome-associated deubiquitinases (DUBs), without effecting on the 20 S proteasome...
July 6, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28678800/dynamical-models-of-mutated-chronic-myelogenous-leukemia-cells-for-a-post-imatinib-treatment-scenario-response-to-dasatinib-or-nilotinib-therapy
#15
Clemens Woywod, Franz X Gruber, Richard A Engh, Tor Flå
Targeted inhibition of the oncogenic BCR-ABL1 fusion protein using the ABL1 tyrosine kinase inhibitor imatinib has become standard therapy for chronic myelogenous leukemia (CML), with most patients reaching total and durable remission. However, a significant fraction of patients develop resistance, commonly due to mutated ABL1 kinase domains. This motivated development of second-generation drugs with broadened or altered protein kinase selectivity profiles, including dasatinib and nilotinib. Imatinib-resistant patients undergoing treatment with second-line drugs typically develop resistance to them, but dynamic and clonal properties of this response differ...
2017: PloS One
https://www.readbyqxmd.com/read/28665319/synthesis-characterization-and-nanomedical-applications-of-conjugates-between-resorcinarene-dendrimers-and-ibuprofen
#16
Luis D Pedro-Hernández, Elena Martínez-Klimova, Sandra Cortez-Maya, Sonia Mendoza-Cardozo, Teresa Ramírez-Ápan, Marcos Martínez-García
Ibuprofen has been reported to possess anticancer activity. In the present work, four ibuprofen conjugates of resorcinarene-Polyamidoamine PAMAM-dendrimers were synthesized with eight or 16 ibuprofen moieties. The ibuprofen was released from the dendrimers in a dependent manner. The drug-conjugated nanoresorcinarene-dendrimers showed higher cellular uptake than free ibuprofen. In vitro cytotoxicity studies were performed with free ibuprofen and with the synthesized conjugates in U251, PC-3, K-562, HCT-15, MCF-7, SKLU-1, and MDA U251 (human glioblastoma), PC-3 (human prostatic adenocarcinoma), K-562 (human chronic myelogenous leukemia cells), HCT-15 (human colorectal adenocarcinoma), MCF-7 (human mammary adenocarcinoma), SKLU-1 (human lung adenocarcinoma), and MDA-MB-231 (human mammary adenocarcinoma) cancer cell lines by different cytotoxicity assays...
June 30, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28657677/effects-of-pimozide-derivatives-on-pstat5-in-k562-cells
#17
Riccardo Rondanin, Daniele Simoni, Martina Maccesi, Romeo Romagnoli, Stefania Grimaudo, Rosaria Maria Pipitone, Maria Meli, Antonio Cascio, Manlio Tolomeo
STAT5 is a transcription factor, component of the STAT family of signalling proteins. STAT-5 is involved in many types of cancer, including chronic myelogenous leukemia (CML), where this protein is found constitutively activated as a consequence of the BCR-ABL expression. Recently, literature has reported that neuroleptic drug pimozide can act as inhibitor of STAT5 phosphorylation and is capable to induce apoptosis in CML cells in vitro. Our group has synthesized simple derivatives of pimozide, with cytotoxic activity and able to reduce the levels of phosphorylated STAT5...
June 28, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28656128/atypical-presentation-of-chronic-myelogenous-leukemia
#18
Katelyn Mariko Updyke, Joan Morales-Lappot, Theodore Lee
Chronic myelogenous leukemia (CML) is a clonal myeloproliferative disorder characterized by the presence of the Philadelphia chromosome, t(9;22), which is a constitutively active tyrosine kinase that causes excessive proliferation and differentiation of myeloid cells in the bone marrow. Most patients are either asymptomatic or present with fatigue, abdominal fullness, and splenomegaly. This is a case in which a 72-year-old Caucasian male's initial presentation of CML was new-onset atrial fibrillation, chronic obstructive pulmonary disease (COPD) exacerbation, and pneumonia...
May 26, 2017: Curēus
https://www.readbyqxmd.com/read/28656082/mir-570-inhibits-cell-proliferation-and-glucose-metabolism-by-targeting-irs1-and-irs2-in-human-chronic-myelogenous-leukemia
#19
Hong Zhao, Fei Liu, Ruichun Jia, Huiying Chang, Haixia Li, Meijuan Miao, Hui Wang, Zhiping Yang
OBJECTIVES: Chronic myelogenous leukemia (CML) is a chronic myeloproliferative disorder characterized by the accumulation of myeloid cells with a chromosomal translocation known as the Philadelphia chromosome. In this study, we investigated the roles of miR-570 in CML development. MATERIALS AND METHODS: Expression of miR-570 in CML samples and cell lines was determined by qRT-PCR. Glucose uptake and ATP concentration detection assays were used to analyze cell glucose metabolism...
May 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28643670/-chronic-myelogenous-leukemia-monitoring-and-predictors-of-a-favorable-response-to-treatment-with-imatinib
#20
María J Mela Osorio, Isabel A Giere, Isolda Fernández, Miguel A Pavlovsky, Dante Intile, Carolina Pavlovsky
The expected five-year survival of chronic-phase chronic myeloid leukemia patients treated with tyrosine kinase inhibitors is over 90%. Little data is available regarding the results in the Argentinian population. This information might be of interest as generic imatinib is now available in the region. The aim of this study is to provide information on monitoring and the long-term treatment with imatinib outside of a controlled clinical trial, as well as to analyze the predictive effect of early responses to achieve molecular remission 4...
2017: Medicina
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