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chronic myelogenous leukemia

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https://www.readbyqxmd.com/read/28631564/indole-3-carbinol-induces-apoptosis-of-chronic-myelogenous-leukemia-cells-through-suppression-of-stat5-and-akt-signaling-pathways
#1
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/28612580/new-genetic-variation-in-bcr-gene-of-major-b3a2-breakpoint-bcr-abl-fusion-gene-in-patients-with-chronic-myelogenous-leukemia-in-yogyakarta-indonesia
#2
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/28604385/differential-requirements-for-myeloid-leukemia-ifn-%C3%AE-conditioning-determine-graft-versus-leukemia-resistance-and-sensitivity
#3
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/28588835/concomitant-imatinib-and-ibrutinib-in-a-patient-with-chronic-myelogenous-leukemia-and-chronic-lymphocytic-leukemia
#4
Lauren K Shea, Fady M Mikhail, Andres Forero-Torres, Randall S Davis
The availability of kinase and other small-molecule inhibitors to treat hematologic malignancies is increasing. Accordingly, novel regimens that employ these therapeutics are rapidly evolving. Herein we report the safe and effective administration of two targeted kinase inhibitors in a patient with concomitant chronic myelogenous leukemia and chronic lymphocytic leukemia.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28588805/-chronic-myelogenous-leukemia-in-primary-blast-crisis-rather-than-de-novo-bcr-abl1-positive-acute-myeloid-leukemia
#5
Cedric Pastoret, Roch Houot
Differentiating chronic myelogenous leukemia in primary blast crisis (CML-BC) from de novo BCR-ABL1-positive acute myeloid leukemia (AML) is a diagnostic challenge with therapeutic consequences. In our case, a basophilia, the presence of the Philadelphia chromosome in all metaphases and the strict exclusion of molecular hallmarks of AML lead us to retain the diagnosis of CML-BC rather than BCR-ABL1+ AML.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28580304/significance-of-inactivated-genes-in-leukemia-pathogenesis-and-prognosis
#6
REVIEW
Nazanin Heidari, Saeid Abroun, Jessika Bertacchini, Tina Vosoughi, Fakher Rahim, Najmaldin Saki
Epigenetic and genetic alterations are two mechanisms participating in leukemia, which can inactivate genes involved in leukemia pathogenesis or progression. The purpose of this review was to introduce various inactivated genes and evaluate their possible role in leukemia pathogenesis and prognosis. By searching the mesh words "Gene, Silencing AND Leukemia" in PubMed website, relevant English articles dealt with human subjects as of 2000 were included in this study. Gene inactivation in leukemia is largely mediated by promoter's hypermethylation of gene involving in cellular functions such as cell cycle, apoptosis, and gene transcription...
2017: Cell Journal
https://www.readbyqxmd.com/read/28578006/increased-sat2-expression-is-associated-with-busulfan-induced-testicular-sertoli-cell-injury
#7
Yi Xian, Mingjun Wu, Yaping Liu, Jie Hao, Yu Wu, Xiaogang Liao, Gang Li
Busulfan is a chemotherapeutic agent used to treat chronic myelogenous leukemia and other myeloproliferative disorders. Increasing evidence has demonstrated that busulfan may induce testicular dysfunction by targeting genes that are expressed in the testis. Here, we showed that spermidine/spermine N1-acetyltransferase 2 (Sat2) was present in testicular Sertoli cells, and its expression was significantly increased by busulfan treatment. To investigate the implications of Sat2 upregulation for cell growth and function, a Sat2-overexpressing TM4 Sertoli cell model was established...
June 1, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28577388/recurrence-of-venous-thromboembolism-among-adults-acute-leukemia-patients-treated-at-the-university-of-texas-md-anderson-cancer-center-incidence-and-risk-factors
#8
Nhiem V Luong, Michael H Kroll, Khanh Vu
The purpose was to determine the incidence and risk factors for venous thromboembolism (VTE) recurrence among adult acute leukemia patients. We performed a retrospective study of adult acute leukemia patients who were treated at our institution between November 1999 and May 2005. Medical records of 139 patients with an initial VTE were reviewed and followed up to May 2010 for VTE recurrence. Of these 139 patients [86 with acute myelogenous leukemia (AML), 53 with acute lymphocytic leukemia (ALL)], 27 (19.4%, 16 AML and 11 ALL) had VTE recurrence...
May 24, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28561717/addressing-the-survivorship-care-needs-of-patients-receiving-extended-cancer-treatment
#9
Paul B Jacobsen, Ryan D Nipp, Patricia A Ganz
Cancer survivorship care and research has typically focused on the health care needs of people with cancer following the acute phase of treatment. Work in this area, however, has faced challenges in identifying when treatment is complete for many forms of cancer. Acknowledging this challenge, the scope of survivorship research is often expanded to include patients also receiving maintenance or prophylactic therapy. Inherent in this expanded definition is the recognition that for many individuals, cancer is a chronic disease requiring extended treatment over many years...
2017: American Society of Clinical Oncology Educational Book
https://www.readbyqxmd.com/read/28560425/investigating-critical-genes-and-gene-interaction-networks-that-mediate-cyclophosphamide-sensitivity-in-chronic-myelogenous-leukemia
#10
Xiao He, Yuying Deng, Wei Yue
Drug resistance is an obstacle in the treatment of chronic myelogenous leukemia (CML), and is a common reason for treatment failure or disease progression. However, the underlying mechanisms of cyclophosphamide resistance remain poorly defined. In the present study, microarray data concerning cyclophosphamide‑sensitive and ‑resistant chronic myelogenous leukemia cell lines were analyzed. A total of 258 differentially‑expressed genes (DEGs) were identified between these two groups, from which 139 DEGs were upregulated and 119 were downregulated...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28560057/cebpa-mediated-upregulation-of-the-lncrna-plin2-promotes-the-development-of-chronic-myelogenous-leukemia-via-the-gsk3-and-wnt-%C3%AE-catenin-signaling-pathways
#11
Chengming Sun, Shuping Luan, Guili Zhang, Na Wang, Huiyuan Shao, Caifu Luan
Accumulating evidence has shown that long noncoding RNAs (lncRNAs) are significant regulators of multiple cellular processes, including the development of chronic myelocytic leukemia (CML). However, the mechanism of how the lncRNA PLIN2 affects CML development remains unclear. In this study, we aimed to investigate the potential roles of CEBPA-mediated upregulation of PLIN2 in the process of CML development by regulating the GSK3 and Wnt/β-catenin signaling pathways. We found that both CEBPA and PLIN2 were expressed at significantly higher levels in CML...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28556300/development-of-protein-degradation-inducers-of-oncogenic-bcr-abl-protein-by-conjugation-of-abl-kinase-inhibitors-and-iap-ligands
#12
Norihito Shibata, Naoki Miyamoto, Katsunori Nagai, Kenichiro Shimokawa, Tomoya Sameshima, Nobumichi Ohoka, Takayuki Hattori, Yasuhiro Imaeda, Hiroshi Nara, Nobuo Cho, Mikihiko Naito
Chromosomal translocation occurs in some cancer cells, which results in the expression of aberrant oncogenic fusion proteins that include BCR-ABL in chronic myelogenous leukemia (CML). Inhibitors of ABL tyrosine kinase such as imatinib and dasatinib exhibit remarkable therapeutic effects, though emergence of drug resistance hampers the therapy during long-term treatment. An alternative approach to treat CML is to down-regulate the BCR-ABL protein. We have devised a protein knockdown system by hybrid molecules named SNIPERs (Specific and Non-genetic inhibitor of apoptosis protein [IAP]-dependent Protein Erasers), which is designed to induce IAP-mediated ubiquitylation and proteasomal degradation of target proteins, and a couple of SNIPER(ABL) against BCR-ABL protein has been developed recently...
May 26, 2017: Cancer Science
https://www.readbyqxmd.com/read/28543934/clinical-impact-of-pretransplant-use-of-multiple-tyrosine-kinase-inhibitors-on-the-outcome-of-allogeneic-hematopoietic-stem-cell-transplantation-for-chronic-myelogenous-leukemia
#13
Takeshi Kondo, Tokiko Nagamura-Inoue, Arinobu Tojo, Fumitaka Nagamura, Naoyuki Uchida, Hirohisa Nakamae, Takahiro Fukuda, Takehiko Mori, Shingo Yano, Mineo Kurokawa, Hironori Ueno, Heiwa Kanamori, Hisako Hashimoto, Makoto Onizuka, Minoko Takanashi, Tatsuo Ichinohe, Yoshiko Atsuta, Kazuteru Ohashi
Tyrosine kinase inhibitors (TKIs) are widely used to treat patients with chronic myelogenous leukemia in the chronic phase (CML-CP), and outcomes of TKI treatment for patients with CML-CP have been excellent. Since multiple TKIs are currently available, second-line or third-line TKI therapy is considered for patients who are intolerant of or resistant to the previous TKI treatment. Therefore, allogeneic hematopoietic stem cell transplantation (allo-HSCT) is considered only for patients with disease progression or for patients after treatment failure with multiple TKIs...
May 20, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28537657/interferon-%C3%AE-affects-leukemia-cell-apoptosis-through-regulating-fas-fasl-signaling-pathway
#14
H-L Xia, C-J Li, X-F Hou, H Zhang, Z-H Wu, J Wang
OBJECTIVE: Imbalance of hematopoietic cell proliferation and apoptosis is one of the major causes of leukemia. Enhanced cell proliferation and reduced apoptosis lead to hemocytes accumulation. Fas/FasL signaling pathway promotes cell apoptosis. This study investigated the impact of interferon γ (IFN-γ) on chronic myelogenous leukemia cell proliferation and apoptosis to elucidate its interaction with Fas/FasL signaling pathway. PATIENTS AND METHODS: Leukemia K562 cells were routinely cultivated and treated with 10 U/ml, 100 U/ml, and 1000 U/ml interferon for 12 h, 24 h, and 48 h, respectively...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28536994/stability-analysis-of-a-model-of-interaction-between-the-immune-system-and-cancer-cells-in-chronic-myelogenous-leukemia
#15
Apollos Besse, Geoffrey D Clapp, Samuel Bernard, Franck E Nicolini, Doron Levy, Thomas Lepoutre
We describe here a simple model for the interaction between leukemic cells and the autologous immune response in chronic phase chronic myelogenous leukemia (CML). This model is a simplified version of the model we proposed in Clapp et al. (Cancer Res 75:4053-4062, 2015). Our simplification is based on the observation that certain key characteristics of the dynamics of CML can be captured with a three-compartment model: two for the leukemic cells (stem cells and mature cells) and one for the immune response...
May 23, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28533818/a-novel-bcr-abl1-fusion-gene-with-genetic-heterogeneity-indicates-a-good-prognosis-in-a-chronic-myeloid-leukemia-case
#16
Fen Zhou, Runming Jin, Yu Hu, Heng Mei
BACKGROUND: Chronic myelogenous leukemia (CML) is a pluripotent hematopoietic stem cell disorder caused by the fusion of the BCR and ABL1 genes. Quantitative RT-PCR (qRT-PCR) is a routinely performed screening technique to identify BCR-ABL1 fusion genes, but a limitation of this method is its inability to recognize novel fusions that have not been previously characterized. Next-generation sequencing (NGS) is an effective and sensitive detection method for the determination of novel BCR-ABL1 fusion genes as well as previously characterized ones...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/28529625/tuberostemonine-reverses-multidrug-resistance-in-chronic-myelogenous-leukemia-cells-k562-adr
#17
Yu Jia Wang, Huan Dong Zhao, Cai Feng Zhu, Jian Li, Hong Juan Xie, Yu Xiang Chen
Objective: To investigate the reversal effect of tuberostemonine on MDR in myelogenous leukemia cells K562/ADR. Methods: Human myelogenous leukemia cells K562 and their adriamycin-resistance cells K562/ADR were used. The growth curve of cells treated by tuberostemonine and the Non-toxic concentration of tuberostemonine were determined by MTT, Cell apoptosis was determined by MTT and flow cytometry. The expression of MDR1, Survivin and Livin was detected by RT-PCR. The activity of P-gp was detected by flow cytometry...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28526829/super-enhancers-and-broad-h3k4me3-domains-form-complex-gene-regulatory-circuits-involving-chromatin-interactions
#18
Fan Cao, Yiwen Fang, Hong Kee Tan, Yufen Goh, Jocelyn Yeen Hui Choy, Bryan Thean Howe Koh, Jiong Hao Tan, Nicolas Bertin, Aroul Ramadass, Ewan Hunter, Jayne Green, Matthew Salter, Alexandre Akoulitchev, Wilson Wang, Wee Joo Chng, Daniel G Tenen, Melissa J Fullwood
Stretched histone regions, such as super-enhancers and broad H3K4me3 domains, are associated with maintenance of cell identity and cancer. We connected super-enhancers and broad H3K4me3 domains in the K562 chronic myelogenous leukemia cell line as well as the MCF-7 breast cancer cell line with chromatin interactions. Super-enhancers and broad H3K4me3 domains showed higher association with chromatin interactions than their typical counterparts. Interestingly, we identified a subset of super-enhancers that overlap with broad H3K4me3 domains and show high association with cancer-associated genes including tumor suppressor genes...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28524659/synthesis-molecular-docking-molecular-dynamics-studies-and-biological-evaluation-of-4h-chromone-1-2-3-4-tetrahydropyrimidine-5-carboxylate-derivatives-as-potential-antileukemic-agents
#19
Zahra Dolatkhah, Shahrzad Javanshir, Ahmad Shahir Sadr, Jaber Hosseini, Soroush Sardari
A series of 4H-chromone-1,2,3,4-tetrahydropyrimidine-5-carboxylates derivatives were synthesized via a three component one-pot condensation of chromone-3-carbaldehyde, alkyl acetoacetate, and urea or thiourea, using MCM-41-SO3H as efficient nanocatalysts and evaluated for their anticancer activity using a combined in silico docking and molecular dynamics protocol to estimate the binding affinity of the title compounds with the Bcr-Abl oncogene. Two programs, AutoDock 4 and AutoDock Vina software were applied to dock the target protein with synthesized compounds and ATP...
May 25, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28520795/birc6-mediates-imatinib-resistance-independently-of-mcl-1
#20
Denis O Okumu, Michael P East, Merlin Levine, Laura E Herring, Raymond Zhang, Thomas S K Gilbert, David W Litchfield, Yanping Zhang, Lee M Graves
Baculoviral IAP repeat containing 6 (BIRC6) is a member of the inhibitors of apoptosis proteins (IAPs), a family of functionally and structurally related proteins that inhibit apoptosis. BIRC6 has been implicated in drug resistance in several different human cancers, however mechanisms regulating BIRC6 have not been extensively explored. Our phosphoproteomic analysis of an imatinib-resistant chronic myelogenous leukemia (CML) cell line (MYL-R) identified increased amounts of a BIRC6 peptide phosphorylated at S480, S482, and S486 compared to imatinib-sensitive CML cells (MYL)...
2017: PloS One
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