keyword
MENU ▼
Read by QxMD icon Read
search

Mll

keyword
https://www.readbyqxmd.com/read/28646646/antileukemic-activity-and-cellular-effects-of-the-antimalarial-agent-artesunate-in-acute-myeloid-leukemia
#1
Bijender Kumar, Arjun Kalvala, Su Chu, Steven Rosen, Stephen J Forman, Guido Marcucci, Ching-Cheng Chen, Vinod Pullarkat
The artimisinins are a class of antimalarial compounds whose antiparasitic activity is mediated by induction of reactive oxygen species (ROS). Herein, we report that among the artimisinins, artesunate (ARTS), an orally bioavailable compound has the most potent antileukemic activity in AML models and primary patients' blasts. ARTS was most cytotoxic to the FLT3-ITD+ AML MV4-11 and MOLM-13 cells (IC50 values of 1.1 and 0.82μM respectively), inhibited colony formation in primary AML and MDS cells and augmented cytotoxicity of chemotherapeutics...
May 10, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28646565/complete-molecular-remission-in-relapsed-and-refractory-acute-myeloid-leukaemia-with-mll-af9-treated-with-chidamide-based-chemotherapy
#2
Y Lun, J-J Yang, Y Wu
WHAT IS KNOWN AND OBJECTIVE: The mixed lineage leukaemia (MLL) gene translocations are found in approximately 10% of adults with acute myeloid leukaemia (AML) and are markers of poor prognosis. As the best reported response in relapsed and refractory MLL-rearranged AML is around 40%, reinduction treatment is very challenging for those patients. CASE DESCRIPTION: We report a case of relapsed and refractory AML with MLL-AF9, who did not respond to FLAG (fludarabine, cytarabine, granulocyte colony stimulating factor) regimen reinduction treatment, but achieved complete response and molecular remission after chidamide-based chemotherapy...
June 23, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28646023/amlexanox-downregulates-s100a6-to-sensitize-kmt2a-aff1-positive-acute-lymphoblastic-leukemia-to-tnf-%C3%AE-treatment
#3
Hayato Tamai, Hiroki Yamaguchi, Koichi Miyake, Miyuki Takatori, Tomoaki Kitano, Satoshi Yamanaka, Syunsuke Yui, Keiko Fukunaga, Kazutaka Nakayama, Koiti Inokuchi
Acute lymphoblastic leukemias (ALL) positive for KMT2A/AFF1 (MLL/AF4) translocation, which constitute 60% of all infant ALL cases, have a poor prognosis even after allogeneic hematopoietic stem cell transplantation (allo-HSCT). This poor prognosis is due to one of two factors, either resistance to TNF-α which mediates a graft-versus-leukemia (GVL) response after allo-HSCT, or immune resistance due to upregulated expression of the immune escape factor S100A6. Here we report an immune stimulatory effect against KMT2A/AFF1-positive ALL cells by treatment with the anti-allergy drug amlexanox, which we found to inhibit S100A6 expression in the presence of TNF-α...
June 23, 2017: Cancer Research
https://www.readbyqxmd.com/read/28641626/-clinical-significance-of-minimal-residual-disease-in-risk-stratification-and-prognosis-of-childhood-b-lineage-acute-lymphoblastic-leukemia
#4
Fen-Yan An, Shu-Hong Zhang, Ling-Jun Kong, Ying Liang, Ji-Xin Xu, Hai-Long He, Yi-Huai Chai, Wen-Li Zhao
OBJECTIVE: To explore clinical significance of monitoring the level of minimal residual disease (MRD) at different time point in the risk stratification and prognosis of Childhood B-lineage Acute Lymphoblastic Leukemia. METHODS: Three hundred and eighty cases of children's B-ALL from Augest 2008 to January 2013 in our hospital were enrolled in this study. MRD levels were detected at day 15, day 33 and week 12 after initial chemotherapy. The event-free survival(EFS) and overall survival (OS) were measured on the basis of MRD levels at different stages of chemotherapy and were compared by Kaplan Meier analyses...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641618/-clinical-and-cytogenetic-characteristics-of-two-aml-patients-with-high-level-mll-expression
#5
Jia-Wei Zhao, Kun Ru, Cheng-Wen Li, Ke-Jing Tang, Ying-Chun Zheng, Cheng-Hua Cui, Jing Xiao, Sheng-Hua Chen, Xiao-Jing Wang
OBJECTIVE: To investigate the clinical and cytogenetic characteristics of high-level mixed-lineage leukaemia (MLL) gene amplification in patients with acute myeloid leukemia (AML). METHODS: The clinical and cytogenetic data of 2 AML patients with high-level MLL amplification from January 2010 to August 2016 were analyzed retrospectively. RESULTS: The two AML cases were in middle-aged population. They were diagnosed as FAB subtype M5b and M2a respectively...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28638942/morel-lavallee-lesion-in-pediatric-trauma
#6
Jane Shelley, Alana Noritake, Kenneth Ortiz, Robert Ricca
Morel-Lavallee lesions (MLL) are closed degloving injuries that have been rarely described in the pediatric literature. These internal degloving injuries can have serious complications and long-term morbidity. Early diagnosis and intervention is imperative. We present the case of a 20-month-old with MLL of the thigh.
June 21, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28637661/the-full-transforming-capacity-of-mll-af4-is-interlinked-with-lymphoid-lineage-commitment
#7
Shan Lin, Roger T Luo, Mahesh Shrestha, Michael J Thirman, James C Mulloy
Chromosome rearrangements involving mixed-lineage leukemia gene (MLL) create MLL-fusion proteins, which could drive both acute lymphoblastic and myeloid leukemia (ALL and AML). The lineage decision of MLL-fusion leukemia is influenced by the fusion partner and microenvironment. To investigate the interplay of fusion proteins and microenvironment in lineage choice, we transplanted human hematopoietic stem and progenitor cells (HSPC) expressing MLL-AF9 or MLL-Af4 into immunodeficient NSGS mice, which strongly promote myeloid development...
June 21, 2017: Blood
https://www.readbyqxmd.com/read/28633016/mll-wdr5-complex-regulates-kif2a-localization-to-ensure-chromosome-congression-and-proper-spindle-assembly-during-mitosis
#8
Aamir Ali, Sailaja Naga Veeranki, Akash Chinchole, Shweta Tyagi
Mixed-lineage leukemia (MLL), along with multisubunit (WDR5, RbBP5, ASH2L, and DPY30) complex catalyzes the trimethylation of H3K4, leading to gene activation. Here, we characterize a chromatin-independent role for MLL during mitosis. MLL and WDR5 localize to the mitotic spindle apparatus, and loss of function of MLL complex by RNAi results in defects in chromosome congression and compromised spindle formation. We report interaction of MLL complex with several kinesin and dynein motors. We further show that the MLL complex associates with Kif2A, a member of the Kinesin-13 family of microtubule depolymerase, and regulates the spindle localization of Kif2A during mitosis...
June 19, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28631349/tuning-sulfur-oxidation-states-on-thioether-bridged-peptide-macrocycles-for-modulation-of-protein-interactions
#9
Gabriella Perell, Rachel Staebell, Mehrdad Hairani, Alessandro Cembran, William Charles Krause Pomerantz
Thioethers, sulfoxides, and sulfonium ions, despite diverse physicochemical properties, all engage in non-covalent interactions with proteins. Thioether-containing macrocycles are also attracting attention as protein-protein interaction (PPI) inhibitors. Here we use a model PPI between -helical MLL and KIX to evaluate oxidation effects on sulfur-containing macrocycle structure, stability, and protein affinity. Desolvation effects from varied polarity states were evaluated computationally and experimentally at the side chain, amino acid and peptide level...
June 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28626219/base-excision-repair-proteins-couple-activation-induced-cytidine-deaminase-and-endonuclease-g-during-replication-stress-induced-mll-destabilization
#10
B Gole, E Mian, M Rall, L Wiesmüller
The breakpoint cluster region of the MLL gene (MLLbcr) is frequently rearranged in therapy-related and infant acute leukaemia, but the destabilizing mechanism is poorly understood. We recently proposed that DNA replication stress results in MLLbcr cleavage via Endonuclease G (EndoG) and represents the common denominator of genotoxic therapy-induced MLL destabilization. Here we performed a siRNA screen for new factors involved in replication stress-induced MLL rearrangements employing an EGFP-based reporter system...
June 19, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28624474/-exposure-to-the-insecticides-permethrin-and-malathion-induces-leukemia-and-lymphoma-associated-gene-aberrations-in-vitro
#11
M P Navarrete-Meneses, C Salas-Labadía, M Sanabrais-Jiménez, J Santana-Hernández, A Serrano-Cuevas, R Juárez-Velázquez, A Olaya-Vargas, P Pérez-Vera
Epidemiological studies have associated the exposure to permethrin and malathion with increased risk of leukemia and lymphoma. The aim of this study was to evaluate whether in vitro exposure to permethrin and malathion induces aberrations in genes involved in the etiology of these hematological malignancies. Genetic abnormalities in the IGH, KMT2A (MLL), ETV6 and RUNX1 genes; and aneuploidy induced by the in vitro exposure to permethrin and malathion (200μM, 24h), were analyzed by FISH in peripheral blood mononuclear cells (PBMCs)...
June 14, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28615219/zfp521-regulates-murine-hematopoietic-stem-cell-function-and-facilitates-mll-af9-leukemogenesis-in-mouse-and-human-cells
#12
Brian S Garrison, Adrian P Rybak, Isabel Beerman, Balthasar Heesters, Francois E Mercier, David T Scadden, David Bryder, Roland Baron, Derrick J Rossi
The concept that tumor-initiating cells can co-opt the self-renewal program of endogenous stem cells as a means of enforcing their unlimited proliferative potential is widely accepted, yet identification of specific factors that regulate self-renewal of normal and cancer stem cells remains limited. Using a comparative transcriptomic approach, we identify ZNF521/Zfp521 as a conserved hematopoietic stem cell (HSC)-enriched transcription factor in human and murine hematopoiesis, whose function in HSC biology remains elusive...
June 14, 2017: Blood
https://www.readbyqxmd.com/read/28611169/morel-lavall%C3%A3-e-lesion-of-the-proximal-tibia-in-an-obese-patient-after-low-energy-trauma
#13
Dirk Pieter Hogerzeil, Joris Jansen
Morel-Lavallée lesions (MLL) are usually localised in the hip or gluteal region, but have rarely been reported at the proximal tibia. We present a case of an overweight patient, aged 59, with a MLLof the left proximal tibia after a low-energy fall in his backyard. MLL pathogenesis, history, radiographic imaging, applied treatment and relevant literature to this specific case and MLL in general are discussed. Initially the patient's MLL was managed conservatively until he presented with persisting pain and swelling...
June 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28609655/mll2-not-mll1-plays-a-major-role-in-sustaining-mll-rearranged-acute-myeloid-leukemia
#14
Yufei Chen, Konstantinos Anastassiadis, Andrea Kranz, A Francis Stewart, Kathrin Arndt, Claudia Waskow, Akihiko Yokoyama, Kenneth Jones, Tobias Neff, Yoo Lee, Patricia Ernst
The MLL1 histone methyltransferase gene undergoes many distinct chromosomal rearrangements to yield poor-prognosis leukemia. The remaining wild-type allele is most commonly, but not always, retained. To what extent the wild-type allele contributes to leukemogenesis is unclear. Here we show, using rigorous, independent animal models, that endogenous MLL1 is dispensable for MLL-rearranged leukemia. Potential redundancy was addressed by co-deleting the closest paralog, Mll2. Surprisingly, Mll2 deletion alone had a significant impact on survival of MLL-AF9-transformed cells, and additional Mll1 loss further reduced viability and proliferation...
June 12, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28609652/paradoxical-effects-of-mll-paralogs-in-mll-rearranged-leukemia
#15
Michael J Thirman
Conflicting data exist on the requirement for wild-type MLL1 in MLL-rearranged leukemia. In this issue of Cancer Cell, Chen et al. describe complementary approaches demonstrating that MLL1 is dispensable for MLL-fusion-mediated leukemogenesis. They also observe an unexpected role for MLL2 in MLL-rearranged leukemia cells and identify potential therapeutic targets.
June 12, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28603984/discovery-of-a-highly-potent-cell-permeable-macrocyclic-peptidomimetic-mm-589-targeting-the-wd-repeat-domain-5-protein-wdr5-mixed-lineage-leukemia-mll-protein-protein-interaction
#16
Hacer Karatas, Yangbing Li, Liu Liu, Jiao Ji, Shirley Lee, Yong Chen, Jiuling Yang, Liyue Huang, Denzil Bernard, Jing Xu, Elizabeth C Townsend, Fang Cao, Xu Ran, Xiaoqin Li, Bo Wen, Duxin Sun, Jeanne A Stuckey, Ming Lei, Yali Dou, Shaomeng Wang
We report herein the design, synthesis, and evaluation of macrocyclic peptidomimetics that bind to WD repeat domain 5 (WDR5) and block the WDR5-mixed lineage leukemia (MLL) protein-protein interaction. Compound 18 (MM-589) binds to WDR5 with an IC50 value of 0.90 nM (Ki value <1 nM) and inhibits the MLL H3K4 methyltransferase (HMT) activity with an IC50 value of 12.7 nM. Compound 18 potently and selectively inhibits cell growth in human leukemia cell lines harboring MLL translocations and is >40 times better than the previously reported compound MM-401...
June 12, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28598545/analysis-of-common-cytogenetic-abnormalities-in-new-zealand-pediatric-all-shows-ethnically-diverse-carriage-of-etv6-runx1-without-a-corresponding-difference-in-survival
#17
Tristan Pettit, Nyree Cole, Wingchi Leung, Kirsten Ballantine, Scott Macfarlane
BACKGROUND: The frequency of common cytogenetic abnormalities in pediatric acute lymphoblastic leukemia (ALL) is known to vary by geographic location and ethnic origin. This study aimed to determine the frequency of hypodiploidy, ETV6-RUNX1, BCR-ABL1, and MLL rearrangement within New Zealand's pediatric ALL population and to assess whether the frequency of these ALL prognostic markers varies according to ethnicity. PROCEDURE: The New Zealand Children's Cancer Registry provided information for all registered pediatric ALL patients that were diagnosed between 2000 and 2009, with medical records available for 246 patients...
June 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28597942/copy-number-alterations-determined-by-single-nucleotide-polymorphism-array-testing-in-the-clinical-laboratory-are-indicative-of-gene-fusions-in-pediatric-cancer-patients
#18
Tracy M Busse, Jacquelyn J Roth, Donna Wilmoth, Luanne Wainwright, Laura Tooke, Jaclyn A Biegel
Gene fusions resulting from structural rearrangements are an established mechanism of tumorigenesis in pediatric cancer. In this clinical cohort, 1,350 single nucleotide polymorphism (SNP)-based chromosomal microarrays from 1,211 pediatric cancer patients were evaluated for copy number alterations (CNAs) associated with gene fusions. Karyotype or fluorescence in situ hybridization studies were performed in 42% of the patients. Ten percent of the bone marrow or solid tumor specimens had SNP array-associated CNAs suggestive of a gene fusion...
June 9, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28592975/prognostic-factors-and-treatment-of-pediatric-acute-lymphoblastic-leukemia
#19
REVIEW
Jae Wook Lee, Bin Cho
The event-free survival (EFS) for pediatric acute lymphoblastic leukemia (ALL) has shown remarkable improvement in the past several decades. In Korea also, a recent study showed 10-year EFS of 78.5%. Much of the improved outcome for pediatric ALL stems from the accurate identification of prognostic factors, the designation of risk group based on these factors, and treatment of appropriate duration and intensity according to risk group, done within the setting of cooperative clinical trials. The schema of first-line therapy for ALL remains mostly unchanged, although many groups have now reported on the elimination of cranial irradiation in all patients with low rates of central nervous system relapse...
May 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28592067/-combination-of-pp242-and-dasatinib-suppresses-the-progression-of-acute-myeloid-leukemia-in-a-mouse-model
#20
Y H Qu, H T Liu, F C He
Objective: To establish the acute myeloid leukemia (AML) mouse model, and to preliminarily investigate the efficiency of dasatinib, a tryosine kinase inhibitor, and PP242, an inhibitor of PI3K/Akt/mTOR signaling pathway in the development of AML. Methods: The lineage(-) (Lin(-)) cells of C57BL/6J were transduced with retrovirus carrying MSCV-MLL-AF9-IRES-GFP fusion gene. The transduced cells were transplanted into lethally irradiated recipient mice to induce AML, and then the AML mouse model were established...
May 30, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
keyword
keyword
20419
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"