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https://www.readbyqxmd.com/read/29141325/-genetic-characteristics-of-acute-promyelocytic-leukemia-and-the-application-of-next-generation-sequencing-technology-in-apl
#1
J Zhao, B S Li, J Y Tang
No abstract text is available yet for this article.
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29137406/the-forkhead-box-c1-foxc1-transcription-factor-is-downregulated-in-acute-promyelocytic-leukemia
#2
Emiliano Fabiani, Giulia Falconi, Nélida Inés Noguera, Ernestina Saulle, Laura Cicconi, Mariadomenica Divona, Cristina Banella, Alessandra Picardi, Anna Maria Cerio, Letizia Boe, Massimo Sanchez, Elvira Pelosi, Ugo Testa, Francesco Lo-Coco, Maria Teresa Voso
Forkhead box (FOX) genes encode transcription factors, which regulate embryogenesis and play an important role in hematopoietic differentiation and in mesenchymal niche maintenance. Overexpression of the family member FOXC1 has been reported in solid tumors and acute myeloid leukemia (AML). We studied FOXC1 expression and function in acute promyelocytic leukemia (APL) and normal hematopoietic progenitors. FOXC1 mRNA and protein levels were significantly lower in primary marrow samples from 27 APL patients, as compared to samples obtained from 27 patients with other AML subtypes, and 5 normal CD34+ hematopoietic cells...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136503/acute-promyelocytic-leukemia-a-paradigm-for-oncoprotein-targeted-cure
#3
REVIEW
Hugues de Thé, Pier Paolo Pandolfi, Zhu Chen
Recent clinical trials have demonstrated that the immense majority of acute promyelocytic leukemia (APL) patients can be definitively cured by the combination of two targeted therapies: retinoic acid (RA) and arsenic. Mouse models have provided unexpected insights into the mechanisms involved. Restoration of PML nuclear bodies upon RA- and/or arsenic-initiated PML/RARA degradation is essential, while RA-triggered transcriptional activation is dispensable for APL eradication. Mutations of the arsenic-binding site of PML/RARA, but also PML, have been detected in therapy-resistant patients, demonstrating the key role of PML in APL cure...
November 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29135051/low-molecular-weight-heparin-and-aspirin-exacerbate-human-endometrial-endothelial-cell-responses-to-antiphospholipid-antibodies
#4
Zola Chihombori Quao, Mancy Tong, Elena Bryce, Seth Guller, Lawrence W Chamley, Vikki M Abrahams
PROBLEM: Women with antiphospholipid antibodies (aPL) are at risk for pregnancy complications despite treatment with low molecular weight heparin (LMWH) or aspirin (ASA). aPL recognizing beta2 glycoprotein I can target the uterine endothelium, however, little is known about its response to aPL. This study characterized the effect of aPL on human endometrial endothelial cells (HEECs), and the influence of LMWH and ASA. METHOD OF STUDY: HEECs were exposed to aPL or control IgG, with or without low-dose LMWH and ASA, alone or in combination...
November 14, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29134567/abdominal-pain-in-patient-with-antiphospholipid-syndrome-the-role-of-mdct-angiography-on-visceral-blood-vessels
#5
Jovica Saponjski, Ljudmila Stojanovich, Jelena Saponjski, Milorad Mirilovic, Dusan Saponjski
Antiphospholipid syndrome (APS) is an autoimmune disease defined by accelerated atherosclerosis, arterial and venous thrombosis, fetal loss, and the presence of antiphospholipid antibodies (aPL) in the serum and which leads to the occurrence of various vascular events. Nonspecific abdominal pain can be one of the symptoms due to changes on visceral blood vessels. The goal of our work is to show the results we obtained in multidetector computed tomography (MDCT) angiography examination of visceral arteries, comparing patients with primary antiphospholipid syndrome (PAPS) and secondary antiphospholipid syndrome (SAPS) with control group...
November 13, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29130759/preeclampsia-in-pregnancies-complicated-by-sle-nephritis-prophylactic-treatment-with-multidisciplinary-approach-are-important-keys-to-prevent-adverse-obstetrics-outcomes
#6
Federico Mecacci, Serena Simeone, Calogero Lino Cirami, Mauro Cozzolino, Caterina Serena, Marianna Pina Rambaldi, Pamela Gallo, Lorenzo Emmi, Daniele Cammelli, Giorgio Mello, Marco Matucci Cerinic
INTRODUCTION: Systemic lupus erythematosus (SLE) commonly affects women of childbearing age. Hypertension, antiphospholipid syndrome and lupus nephritis are risk factors for adverse maternal/fetal outcome. The aim of this retrospective cohort study is to compare pregnancy outcomes in patients with and without SLE nephritis, using a multidisciplinary approach and a broad prophylaxis protocol. MATERIALS AND METHODS: Data were collected from 86 pregnancies complicated by SLE...
November 12, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29128809/icariin-induces-apoptosis-in-acute-promyelocytic-leukemia-by-targeting-pim1
#7
Hong Zhang, Ping Li, Jing Li, Tongguo Song, Lin Wang, Enze Li, Jiao Wang, Luning Wang, Na Wei, Zhi Wang
BACKGROUND: Acute promyelocytic leukemia (APL) is one type of acute myeloid leukemia (AML) featured by abnormal, heavily granulated promyelocytes. This study aimed to investigate the antitumor activity of icariin in APL cells. METHODS: APL cell lines (HL-60 and NB4) were used to investigate the effect of icariin in vitro. Cell viability was determined by WST-8 proliferation assay, while cell apoptosis was assessed by flow cytometry. The mRNA and protein expression was determined by quantitative real-time polymerase chain reaction and Western blot, respectively...
June 15, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29126718/vitamin-d-and-antiphospholipid-syndrome-a-retrospective-cohort-study-and-meta-analysis
#8
REVIEW
Leyre Riancho-Zarrabeitia, Maite Cubería, Pedro Muñoz, Marcos López-Hoyos, Silvia García-Canale, Mayte García-Unzueta, José L Hernández, Víctor M Martínez-Taboada
OBJECTIVES: (a) To determine serum 25-OH vitamin D (vitD) levels in primary antiphospholipid syndrome (APS) and to compare them with patients with positive antiphospholipid serology who do not meet clinical criteria for APS, and with healthy controls. (b) To analyze the association of vitD levels with both the clinical manifestations and the immunological profile of patients with primary APS. (c) To perform a meta-analysis evaluating potential differences in serum vitD levels between APS and controls as well as the frequency of vitD deficiency in APS patients...
October 12, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29126301/coagulation-testing-in-the-core-laboratory
#9
William E Winter, Sherri D Flax, Neil S Harris
Primary hemostasis begins with endothelial injury. VWF, produced by endothelial cells, binds to platelets and links them to subendothelial collagen. Platelet-derived ADP and thromboxane activate non-adhered platelets via their GPIIb/IIIa receptors, allowing these platelets to participate in platelet aggregation. Secondary hemostasis is initiated with the binding of factor VII to extravascular tissue factor (TF). Factors II, VII, IX and X are vitamin K-dependent factors. The role of vitamin K is to assist in the addition of gamma carboxylate groups to glutamic acids in the "GLA" domains of these factors...
November 8, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/29124399/length-of-exposure-to-antiphospholipid-antibodies-rather-than-age-is-a-risk-factor-for-thrombosis-a-retrospective-single-centre-observational-study
#10
Iñigo Les, Naiara Parraza, Pilar Anaut, Saioa Eguiluz, Cristina Sánchez, María Enriqueta Preciado, Jesús Ángel Loza, Ander Andía
To investigate the association of age and other factors with thrombosis risk in antiphospholipid antibody (aPL) carriers, a retrospective observational study was conducted in a cohort of patients with medium-high aPL titres recruited in a tertiary care hospital. Assuming an age difference of 9.8 years between patients with and without thrombosis, we estimated that a sample size of 70 participants was required. Several variables besides age including gender, vascular risk factors, inherited thrombophilias, non-thrombotic clinical manifestations, laboratory parameters, aPL profile, length of aPL exposure, antithrombotic drugs and partial aPL score were assessed by univariate analysis followed by multivariate logistic regression...
November 10, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29123379/guideline-development-for-the-management-of-gout-role-of-combination-therapy-with-a-focus-on-lesinurad
#11
REVIEW
Graeme Jones, Elena Panova, Richard Day
The aim of this review was to summarize the evidence for combination therapy to achieve serum urate (SUA) target levels in gout. Within this overarching aim, a second aim was to evaluate the evidence for a new uricosuric agent lesinurad, which inhibits urate transport in the kidney. In summary, this review indicates that there are a number of ways to approach patients who do not achieve a target serum urate with allopurinol (APL) monotherapy. These include higher doses of APL up to 600-800 mg/d, switching to febuxostat, or adding in a uricosuric...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29119387/a-new-etv6-ntrk3-cell-line-model-reveals-malat1-as-a-novel-therapeutic-target-a-short-report
#12
Suning Chen, Stefan Nagel, Bjoern Schneider, Haiping Dai, Robert Geffers, Maren Kaufmann, Corinna Meyer, Claudia Pommerenke, Kenneth S Thress, Jiao Li, Hilmar Quentmeier, Hans G Drexler, Roderick A F MacLeod
BACKGROUND: Previously, the chromosomal translocation t(12;15)(p13;q25) has been found to recurrently occur in both solid tumors and leukemias. This translocation leads to ETV6-NTRK3 (EN) gene fusions resulting in ectopic expression of the NTRK3 neurotropic tyrosine receptor kinase moiety as well as oligomerization through the donated ETV6-sterile alpha motif domain. As yet, no in vitro cell line model carrying this anomaly is available. Here we genetically characterized the acute promyelocytic leukemia (APL) cell line AP-1060 and, by doing so, revealed the presence of a t(12;15)(p13;q25)...
November 8, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/29115618/apelin%C3%A2-13-promotes-cell-proliferation-in-the-h9c2-cardiomyoblast-cell-line-by-triggering-extracellular-signal%C3%A2-regulated-kinase-1-2-and-protein-kinase-b-phosphorylation
#13
Luhua Yin, Pu Zhang, Chao Li, Jiafeng Si, Yongmei Wang, Xuemei Zhang, Deqing Zhang, Huanyi Zhang, Cong Lin
Apelin‑13 (APL‑13), a peptide hormone that serves as a ligand for G‑protein coupled receptors, has been demonstrated to be highly expressed in left ventricular hypertrophy rat models. It has been implicated in cardio‑protection under pathological states. The present study aimed to assess the physiological proliferation effect of APL‑13 in cultured H9c2 cardiomyoblast cells, and to elucidate the underlying mechanisms. Cell proliferation was determined by MTT assay. The extracellular signal‑regulated kinase (ERK) 1/2 and protein kinase B (Akt) signaling pathway was identified, and protein expression levels were detected using western blot analysis...
October 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29114972/frontline-therapy-of-acute-promyelocytic-leukemia-randomized-comparison-of-atra-and-intensified-chemotherapy-versus-atra-and-anthracyclines
#14
Eva Lengfelder, Dennis Görlich, Daniel Nowak, Karsten Spiekermann, Claudia Haferlach, Utz Krug, Karl-Anton Kreuzer, Jan Braess, Christoph Schliemann, Hans-Walter Lindemann, Heinz A Horst, Xaver Schiel, Michael Flasshove, Anna Hecht, Susanne Schnittger, Stephanie Schneider, Bernhard Wörmann, Wolf-Karsten Hofmann, Wolfgang E Berdel, Eike Bormann, Cristina Sauerland, Thomas Büchner, Wolfgang Hiddemann
OBJECTIVES: Randomized comparison of two treatment strategies in frontline therapy of acute promyelocytic leukemia (APL): all-trans retinoic acid (ATRA) and double induction intensified by high dose cytosine arabinoside (HD ara-C) (German AMLCG) and therapy with ATRA and anthracyclines (Spanish PETHEMA, LPA99). PATIENTS AND RESULTS: Eighty of 87 adult patients with genetically confirmed APL of all risk groups were eligible. The outcome of both arms was similar: AMLCG vs PETHEMA: hematological complete remission 87% vs 83%, early death 13% vs 17% (p=0...
November 7, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/29113330/flow-cytometric-analysis-of-cd64-expression-pattern-and-density-in-the-diagnosis-of-acute-promyelocytic-leukemia-a-multi-center-study-in-shanghai-china
#15
Min Liu, Xiangqin Weng, Shenglan Gong, Hui Chen, Jing Ding, Mengqiao Guo, Xiaoxia Hu, Jianmin Wang, Jianmin Yang, Gusheng Tang
No unified immunophenotypic profiles and corresponding analytic strategies have been established for the rapid diagnosis of acute promyelocytic leukemia (APL) using flow cytometry (FCM). Here we describe a characteristic immunophenotypic panel that can rapidly and accurately distinguish APL from other types of adult acute myeloid leukemia (AML) using only FCM. By comparing APL cells and non-APL AML cells that share APL common immunophenotypes (CD34(-)CD117(+)HLA(-)DR(-)) we found that CD64 was a significant factor that differentiated APL from other AMLs...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113283/epigallocatechin-3-gallate-induces-apoptosis-in-acute-promyelocytic-leukemia-cells-via-a-shp-1-p38%C3%AE-mapk-bax-cascade
#16
Liugen Gan, Liang Zhong, Zhiling Shan, Chunlan Xiao, Ting Xu, Hao Song, Liu Li, Rong Yang, Beizhong Liu
Acute promyelocytic leukemia (APL) is characterized by a specific chromosomal translation, resulting in a fusion gene that affects the differentiation, proliferation and apoptosis of APL cells. Epigallocatechin-3-gallate (EGCG), a catechin, exhibits numerous biological functions, including antitumor activities. Previous studies have reported that EGCG induces apoptosis in NB4 cells. However, the molecular mechanism underlying EGCG-induced apoptosis remains unclear. The present study aimed to determine the molecular basis of EGCG-induced apoptosis in NB4 cells...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29111326/c-ebp%C3%AE-contributes-to-transcriptional-activation-of-long-non-coding-rna-neat1-during-apl-cell-differentiation
#17
Yewei Wang, Lei Fu, Ailian Sun, Doudou Tang, Yunxiao Xu, Zheyuan Li, Mingjie Chen, Guangsen Zhang
Emerging evidences have shown that long non-coding RNAs (lncRNAs) play critical roles in cancer development and cancer therapy. LncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) is indispensable during acute promyelocytic leukemia (APL) cell differentiation induced by all-trans retinoic acid (ATRA). However, the precise mechanism of NEAT1 upregulation has not been fully understood. In this study, we performed chromatin immunoprecipitation and luciferase reporter assays to demonstrate that C/EBP family transcription factor C/EBPβ bind to and transactivate the promoter of lncRNA NEAT1 through the C/EBPβ binding sites both around -54 bp and -1453 bp upstream of the transcription start site...
October 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29110117/successful-treatment-of-acute-promyelocytic-leukemia-in-pregnancy-with-single-agent-all-trans-retinoic-acid
#18
REVIEW
Cordula M Nellessen, Viktor Janzen, Karin Mayer, Giulia Giovannini, Ulrich Gembruch, Peter Brossart, Waltraut M Merz
PURPOSE: The diagnosis of acute promyelocytic leukemia (APL) in pregnancy is an uncommon, life-threatening emergency. Choice of treatment and management of complications are challenging. METHODS: We report the case of a patient with diagnosis of APL at gestational age (GA) 24 + 4. We describe the interdisciplinary management during pregnancy and delivery and provide a 2-year follow-up. Existing reports on APL in pregnancy are summarized. RESULTS: Single-agent induction therapy with all-trans retinoic acid (ATRA) was started and resulted in normalization of blood cell counts after 32 days...
November 6, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29105243/performance-of-multiplex-fusion-gene-testing-in-pediatric-acute-myeloid-leukemia
#19
Yuka Iijima-Yamashita, Hidemasa Matsuo, Miho Yamada, Takao Deguchi, Nobutaka Kiyokawa, Akira Shimada, Akio Tawa, Hiroyuki Takahashi, Daisuke Tomizawa, Takashi Taga, Akitoshi Kinoshita, Souichi Adachi, Keizo Horibe
BACKGROUND: Gene abnormalities, particularly chromosome rearrangements generating gene fusions, are associated with clinical characteristics and prognosis in pediatric acute myeloid leukemia (AML). Karyotyping is generally performed to enable risk stratification; however, the results are not always consistent with those generated by reverse transcription-polymerase chain reaction (RT-PCR), and more accurate and rapid methods are required. METHODS: A total of 487 samples from de novo AML patients enrolled in the Japanese Pediatric Leukemia/Lymphoma Study Group (JPLSG) AML-05 study (n = 448), and acute promyelocytic leukemia (APL) patients enrolled in the JPLSG AML-P05 study (n = 39) were available for this investigation...
November 4, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29103803/cd39-and-cd73-activity-are-protective-in-a-mouse-model-of-antiphospholipid-antibody-induced-miscarriages
#20
Anushka N Samudra, Karen M Dwyer, Carly Selan, Susanna Freddi, Lisa Murray-Segal, Mandana Nikpour, Michael J Hickey, Karlheinz Peter, Simon C Robson, Maithili Sashindranath, Peter J Cowan, Harshal H Nandurkar
OBJECTIVE: Antiphospholipid syndrome (APS) is a systemic autoimmune disorder of young adults associated with devastating pregnancy complications (recurrent miscarriages, preeclampsia and low birth weight) and vascular complications including thrombosis. The key components implicated in pathogenesis of APS are the complement cascade and tissue factor (TF) activity causing inflammation and coagulation. Purinergic signalling involving catabolism of ATP to adenosine by cell-surface enzymes CD39 and CD73 has anti-inflammatory and anti-thrombotic effects...
November 2, 2017: Journal of Autoimmunity
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