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https://www.readbyqxmd.com/read/28727840/dual-inhibition-of-fes-and-flt3-tyrosine-kinases-potently-inhibits-flt3-itd-aml-cell-growth
#1
Mark C Weir, Sabine Hellwig, Li Tan, Yao Liu, Nathanael S Gray, Thomas E Smithgall
Acute myelogenous leukemia (AML) is often associated with activating mutations in the receptor tyrosine kinase, Flt3, including internal tandem duplications (ITDs) within the regulatory juxtamembrane region. Previous studies have linked Flt3-ITD to the activation of the Fes protein tyrosine kinase in AML, and RNAi-knockdown studies suggest that Fes may be required for Flt3 function. In this study, we tested Fes inhibitors from three different chemical classes for their growth-suppressive activity against Flt3-ITD+ myeloid leukemia cell lines (MV4-11, MOLM-13 and MOLM-14) vs...
2017: PloS One
https://www.readbyqxmd.com/read/28727820/active-hexose-correlated-compound-enhances-extrinsic-pathway-mediated-apoptosis-of-acute-myeloid-leukemic-cells
#2
Kavin Fatehchand, Ramasamy Santhanam, Brenda Shen, Ericka L Erickson, Shalini Gautam, Saranya Elavazhagan, Xiaokui Mo, Tesfaye Belay, Susheela Tridandapani, Jonathan P Butchar
Active Hexose Correlated Compound (AHCC) has been shown to have many immunostimulatory and anti-cancer activities in mice and in humans. As a natural product, AHCC has potential to create safer adjuvant therapies in cancer patients. Acute Myeloid Leukemia (AML) is the least curable and second-most common leukemia in adults. AML is especially terminal to those over 60 years old, where median survival is only 5 to 10 months, due to inability to receive intensive chemotherapy. Hence, the purpose of this study was to investigate the effects of AHCC on AML cells both in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28727288/complications-preceding-early-deaths-in-black-and-white-children-with-acute-myeloid-leukemia
#3
Lena E Winestone, Kelly D Getz, Tamara P Miller, Yimei Li, Yuan-Shung Huang, Alix E Seif, Brian T Fisher, Richard Aplenc
Black patients have a twofold increased risk of induction mortality compared to White patients with acute myeloid leukemia (AML). We reviewed diagnosis and billing data from Pediatric Health Information System for 28 AML Induction I deaths to investigate conditions preceding death in White and Black patients. Half of deaths occurred within 10 days of initial diagnostic admission. Respiratory, cardiac, renal, and infectious complications were common prior to both White and Black deaths. Deaths in White patients were more commonly preceded by intracranial hemorrhage compared to deaths in Black patients...
July 20, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28726768/characterization-and-purification-of-bergamottin-from-citrus-grandis-l-osbeck-cv-yongjiazaoxiangyou-and-its-antiproliferative-activity-and-effect-on-glucose-consumption-in-hepg2-cells
#4
Yilong Liu, Chuanhong Ren, Yunlin Cao, Yue Wang, Wenyi Duan, Linfeng Xie, Chongde Sun, Xian Li
Bergamottin is a natural furanocoumarin compound with weak polarity. Characterization and quantification of bergamottin were carried out in different fruit tissues of various citrus cultivars. Among the four citrus tissues tested, i.e., flavedo, albedo, segment membrane (SM), and juice sacs (JS) in eight citrus cultivars, the highest bergamottin content was found in the flavedo of Citrus grandis (L.) Osbeck cv. Yongjiazaoxiangyou (YJZXY, 666.54 μg·g(-1) DW). A combination of silica gel column chromatography and high-speed counter-current chromatography (HSCCC) was established to efficiently purify bergamottin from the flavedo of YJZXY...
July 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28726739/5-aza-2-2-difluroro-deoxycytidine-nuc013-a-novel-nucleoside-dna-methyl-transferase-inhibitor-and-ribonucleotide-reductase-inhibitor-for-the-treatment-of-cancer
#5
Richard Daifuku, Zhenbo Hu, Yogen Saunthararajah
Tumor suppressor genes can be silenced genetically as well as epigenetically. One approach to reversing epigenetic suppression of tumor suppressor genes is to inhibit DNA methyl transferase. 5-aza-2',2'-diflurorodeoxycytidine (NUC013) is a novel DNA methyl transferase and ribonucleotide reductase inhibitor that is a more potent inhibitor of growth than decitabine in the NCI 60 cancer cell line panel. NUC013 is more active than decitabine against p53-null/mutant cancer cell lines (p = 0.027) but is even more so against p53 wild-type (WT) cell lines (p = 0...
July 20, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28726646/the-prognostic-significance-of-combaind-expression-of-zap-70-and-cd38-in-chronic-lymphocytic-leukemia
#6
T Kirtava, T Vatsadze, E Azrmaiparashili, D Ghirdaladze
Our aim was to assess the inter links of the markers CD38 and ZAP-70 based on our materials, the attitude according to the disease stage, and to document which of them had leading meaning for prognosis and treatmend of the disease. In our study we have used flow cytometry for detection CD38 and ZAP-70+ markers expression. (58 patients to assessments their prognostic value in сhronic lymphocytic leukemia (CLL), Correlation to Rai stages and relationships between this markers and outcome of therapy). We divided all patients in two groups based on level of ZAP-70+ cell and CD38+cells,(I group-patients) ZAP-70+ cells <20% CD38+<30% and ZAP-70+ cells >20% and CD38>30%,(II group) becaus our in investigation shows, that ZAP -70+ is very importance independent prognoctic marker as why in ZAP-70+ cases when its number was <20%, patients had favorable prognosis - the big part of them (13(40...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28726645/chronic-myeloid-leukemia-expected-relapse-s-clinical-laboratory-indexes
#7
T Kirtava, D Ghirdaladze, T Vatsadze
Today Chronic Myeloid Leukemia (CML) relapse's final assessment and monitoring in the whole world is implemented by BCR-ABL gene quantitative detection - during the polymerase chain reaction (by PSR means). Implementation of this monitoring materially and technically is not often available and remission during years is being assessed using monthly clinical-laboratory data. Proceeding from this, the goal of our work was to find the clinical-laboratory features, indicating the expected relapse and require the urgent molecular research carry out...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28726435/-acute-lymphoblastic-leukemia-of-adults-a-case-of-prolonged-hip-pain-diagnostics-with-a-surprising-conclusion-case-report
#8
Štěpán Hrabovský, František Folber, Barbora Jurová, Zdeněk Řehák, Michael Doubek
Though acute lymphoblastic leukemia (ALL) is the most common malignancy of childhood age, it is a rare diagnosis in adults. This disease often manifests with common and nonspecific symptoms, so it can easily escape an early diagnostics without a proper blood count examination. We present a case of an adult ALL patient suffering only from severe hips and thighs pain, without any significant blood count abnormities leading to the diagnostics. In the second part of the article, we summarize current highlights regarding this disease...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28725969/mastocytosis-from-a-molecular-point-of-view
#9
REVIEW
Daniel Elieh Ali Komi, Todd Rambasek, Stefan Wöhrl
Mast cells (MCs) are physiologically activated by binding of stem cell factor (SCF) to the extracellular domains of the Kit receptor. This binding increases the proliferation and prolongs the survival of normal mature MCs, as well as intensifies the release of mediators. In mastocytosis, somatic mutations of the coding Kit gene cause autocrine dysregulation and lead to constitutive KIT activation even in the absence of its ligand SCF. Clinical symptoms are caused by MC-mediator release and/or infiltration of MCs into tissues...
July 19, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28725672/duplication-of-subtelomeric-regions-in-an-adult-with-acute-monocytic-leukemia-with-an-acquired-jumping-translocation-involving-3q13-31-qter
#10
Eigil Kjeldsen
A jumping translocation (JT) involves a single donor chromosome and two or more recipient chromosomes in which a similar chromosomal region is translocated to various recipient chromosomes in different cell lines of a single individual. JTs are often associated with telomeric regions. Only 21 acquired JTs have previously been described in myeloid malignancies. Three of these cases involved the 3q13.31-qter region of which all were associated with a dismal outcome. In our recent publication, "Characterization of an acquired jumping translocation involving 3q13...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28725653/calr-positive-myeloproliferative-disorder-in-a-patient-with-ph-positive-chronic-myeloid-leukemia-in-durable-treatment-free-remission-a-case-report
#11
Irene Dogliotti, Carmen Fava, Anna Serra, Enrico Gottardi, Filomena Daraio, Francesca Carnuccio, Emilia Giugliano, Monica Bocchia, Giuseppe Saglio, Giovanna Rege-Cambrin
Current diagnostic criteria for Philadelphia-negative myeloproliferative neoplasia (MPN) have been redefined by the discovery of Janus kinase 2 (JAK2), myeloproliferative leukemia (MPL) and calreticulin (CALR) genetic alterations. Only few cases of coexistence of CALR-mutated MPN and Philadelphia-positive chronic myeloid leukemia (CML) have been described so far. Here we report the case of a patient with CML diagnosed in 2001, treated with imatinib and pegylated interferon (IFN) frontline. She reached complete molecular remission (CMR) and discontinued imatinib, maintaining treatment free remission...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28725651/human-acute-leukemia-induced-pluripotent-stem-cells-a-unique-model-for-investigating-disease-development-and-pathogenesis
#12
EDITORIAL
Clara Bueno, Pablo Menendez
No abstract text is available yet for this article.
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28725648/deletion-with-25-nucleotides-of-tcr%C3%AE-gene-in-t-cells-from-a-case-with-chronic-myeloid-leukemia
#13
Yan Li, Jing Lai, Ziwei Liao, Lixin Guo, Bo Li, Kanger Zhu, Yangqiu Li
No abstract text is available yet for this article.
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28725544/successful-haploidentical-stem-cell-transplantation-with-prophylactic-administration-of-liposomal-amphotericin-b-after-invasive-pulmonary-zygomycosis
#14
Testuro Ochi, Yuta Katayama, Takeshi Okatani, Ryota Imanaka, Kohei Kyo, Mitsuhiro Itagaki, Shinya Katsutani, Koji Iwato, Hideki Asaoku
A 54-year-old woman with acute myeloid leukemia (AML) achieved complete remission by induction chemotherapy, but developed zygomycosis after consolidation therapy. As zygomycosis could not be cured by liposomal amphotericin B and micafungin, left lower lobectomy was performed. As AML relapsed 7 months after onset, she received haploidentical stem cell transplantation under administration of liposomal amphotericin B. Despite experiencing severe acute graft-versus-host disease, she remains alive with no relapse of either zygomycosis or AML...
December 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28725104/analysis-of-dependently-truncated-data-in-cox-framework
#15
Yang Liu, Ji Li, Xu Zhang
Truncation is a known feature of bone marrow transplant (BMT) registry data, for which the survival time of a leukemia patient is left truncated by the waiting time to transplant. It was recently noted that a longer waiting time was linked to poorer survival. A straightforward solution is a Cox model on the survival time with the waiting time as both truncation variable and covariate. The Cox model should also include other recognized risk factors as covariates. In this paper we focus on estimating the distribution function of waiting time and the probability of selection under the aforementioned Cox model...
2017: Communications in Statistics: Simulation and Computation
https://www.readbyqxmd.com/read/28725044/cord-blood-nk-cells-engineered-to-express-il-15-and-a-cd19-targeted-car-show-long-term-persistence-and-potent-anti-tumor-activity
#16
E Liu, Y Tong, G Dotti, H Shaim, B Savoldo, M Mukherjee, J Orange, X Wan, X Lu, A Reynolds, M Gagea, P Banerjee, R Cai, M H Bdaiwi, R Basar, M Muftuoglu, L Li, D Marin, W Wierda, M Keating, R Champlin, E Shpall, K Rezvani
Chimeric antigen receptors (CARs) have been used to redirect the specificity of autologous T-cells against leukemia and lymphoma with promising clinical results.(1-3) Extending this approach to allogeneic T-cells is problematic as they carry a significant risk of graft-versus-host disease (GVHD). Natural killer (NK) cells are highly cytotoxic effectors, killing their targets in a non-antigen specific manner without causing GVHD. Cord blood (CB) offers an attractive, allogeneic, off-the-self source of NK cells for immunotherapy...
July 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28724908/design-and-discovery-of-novel-monastrol-1-3-5-triazines-as-potent-anti-breast-cancer-agent-via-attenuating-epidermal-growth-factor-receptor-tyrosine-kinase
#17
Jitendra Kumar Srivastava, Girinath G Pillai, Hans Raj Bhat, Amita Verma, Udaya Pratap Singh
A novel series of hybrid analogues of monastrol-1,3,5-triazine were designed and developed via one-pot synthesis using Bi(NO3)3 as a catalyst. Entire compounds were evaluated for their anticancer activity against HeLa (cervical cancer), MCF-7 (breast cancer), HL-60 (Human promyelocytic leukemia), HepG2 (Hepatocellular carcinoma) and MCF 12A (normal epithelial breast cell line) using MTT assay, where they showed highest inhibitory activity against MCF-7. The molecules were also found to be non-toxic to MCF 12A cells...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724766/a-unique-t-cell-receptor-amino-acid-sequence-selected-by-htlv-i-tax301-309-specific-cytotoxic-t-cells-in-hla-a24-02-asymptomatic-carriers-and-adult-t-cell-leukemia-lymphoma-patients
#18
Yuko Ishihara, Yukie Tanaka, Seiichiro Kobayashi, Koji Kawamura, Hideki Nakasone, Ayumi Gomyo, Jin Hayakawa, Masaharu Tamaki, Yu Akahoshi, Naonori Harada, Machiko Kusuda, Kazuaki Kameda, Tomotaka Ugai, Hidenori Wada, Kana Sakamoto, Miki Sato, Kiriko Terasako-Saito, Misato Kikuchi, Shun-Ichi Kimura, Aki Tanihara, Shinichi Kako, Kaoru Uchimaru, Yoshinobu Kanda
We previously reported that the T-cell receptor (TCR) repertoire of HTLV-I Tax301-309-specific CD8(+) cytotoxic T-cells (Tax-CTLs) was highly restricted and a particular amino acid sequence motif, "PDR", was conserved among HLA-A*24:02(+) ATL patients who have undergone allogeneic hematopoietic cell transplantation (allo-HSCT). Furthermore, we found that donor-derived PDR+CTLs selectively expanded in ATL long-term HSCT survivors with strong CTL activity against HTLV-I. On the other hand, the TCR repertoires in Tax-CTL of asymptomatic HTLV-I carriers (ACs) remain unclear...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28724540/targeting-bcl-2-in-b-cell-lymphomas
#19
Matthew S Davids
The B-cell leukemia/lymphoma-2 (BCL-2) family of proteins governs the intrinsic pathway of mitochondrial apoptosis. Dysregulation of BCL-2 has long been known to be a crucial part of the pathophysiology of B-cell lymphomas, yet several early attempts to target this pathway therapeutically were unsuccessful due to toxicity, lack of efficacy, or both. Recently, a highly potent and selective oral BCL-2 antagonist, venetoclax, was approved in chronic lymphocytic leukemia (CLL), where it has proven to be highly active, even in patients with high risk del(17p) disease...
July 19, 2017: Blood
https://www.readbyqxmd.com/read/28724539/racial-and-ethnic-disparities-in-hematologic-malignancies
#20
Kedar Kirtane, Stephanie J Lee
Racial and ethnic disparities in patients with solid malignancies have been well documented. Less is known about these disparities in patients with hematologic malignancies. With the advent of novel chemotherapeutics and targeted molecular, cellular, and immunologic therapies, it is important to identify differences in care that may lead to disparate outcomes. This review provides a critical appraisal of the empirical research on racial and ethnic disparities in incidence, survival, and outcomes in patients with hematologic malignancies...
July 19, 2017: Blood
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