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Acute lymphoblastic leukaemia

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https://www.readbyqxmd.com/read/27899386/thyroid-abscess-in-case-of-pre-b-acute-lymphoblastic-leukaemia-a-rare-presentation
#1
Siddhesh Arun Kalantri, Saikat Datta, Dhritiman Maitra, Maitreyee Bhattacharyya
Thyroid abscess is a very rare clinical condition. It usually occurs in immunocompromised individuals or those with underlying malignancy. We report a case of multiple thyroid abscesses in the patient with Pre B acute lymphoblastic leukaemia which developed secondary to hematogenous spread from pyomyositis of right calf muscle. The patient developed sepsis-associated disseminated intravascular coagulation, which got resolved after thyroidectomy. He became afebrile after surgical intervention. Unfortunately, all the cultures were negative...
November 29, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27891349/unusual-presentation-of-acute-leukaemia-a-tripod-of-cases
#2
Manjari Kishore, Vijay Kumar, Sadhna Marwah, Abhay S Nigam
Acute Leukemia is one of the common haematological malignancies encountered with varied clinical and haematological presentation. In acute leukaemia, complications like bleeding and infection cause significant morbidity and mortality, thus overshadowing the thromboembolic events. Among the various malignant haematological disorders, the association of thromboembolic events is often noted with acute promyelocytic leukemia, though the overall frequency of such events remains very low. Acute Lymphoblastic Leukemia (ALL) is, however, more common than Acute non-lymphoblastic Leukaemia...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27885263/targeting-high-dynamin-2-dnm2-expression-by-restoring-ikaros-function-in-acute-lymphoblastic-leukemia
#3
Zheng Ge, Yan Gu, Qi Han, Gang Zhao, Min Li, Jianyong Li, Baoan Chen, Tianyu Sun, Sinisa Dovat, Robert Peter Gale, Chunhua Song
Dynamin-2 (DNM2) is a GTPase essential for intracellular vesicle formation and trafficking, cytokinesis and receptor endocytosis. Mutations in DNM2 are common in early T-cell precursor acute lymphoblastic leukemia. However, DNM2 expression in other types of ALL are not reported. We studied DNM2 mRNA level in adults with B- and T-cell ALL. We found DNM2 is more highly expressed compared with normals in both forms of ALL. High DNM2 expression is associated with some clinical and laboratory features, inferior outcomes and with leukaemia cell proliferation...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27861730/clinical-utility-of-next-generation-sequencing-based-minimal-residual-disease-in-paediatric-b-cell-acute-lymphoblastic-leukaemia
#4
Yuko Sekiya, Yinyan Xu, Hideki Muramatsu, Yusuke Okuno, Atsushi Narita, Kyogo Suzuki, Xinan Wang, Nozomu Kawashima, Hirotoshi Sakaguchi, Nao Yoshida, Asahito Hama, Yoshiyuki Takahashi, Koji Kato, Seiji Kojima
We assessed the clinical utility of next-generation sequencing (NGS)-based monitoring of minimal residual disease (MRD) in a uniformly treated cohort of 79 patients with paediatric B-cell acute lymphoblastic leukaemia. Bone marrow samples were collected at the time of diagnosis, days 33 and 80, pre- (4-5 months) and post- (24 months) maintenance therapy time points, and at relapse. We identified leukaemia-specific CDR3 sequences in 72 of 79 patients (91%) and detected MRD in 59 of 232 samples. Although MRD was detected in 28 of 55 samples (51%) on day 33, the frequencies of MRD detection decreased to 25% (16/65) at day 80, 19% (11/58) at 4-5 months and 7·4% (4/54) at 24 months...
November 11, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27824095/recombinant-l-asparaginase-1-from-saccharomyces-cerevisiae-an-allosteric-enzyme-with-antineoplastic-activity
#5
Iris Munhoz Costa, Leonardo Schultz, Beatriz de Araujo Bianchi Pedra, Mariana Silva Moreira Leite, Sandra H P Farsky, Marcos Antonio de Oliveira, Adalberto Pessoa, Gisele Monteiro
L-asparaginase (L-ASNase) (EC 3.5.1.1) is an important enzyme for the treatment of acute lymphoblastic leukaemia. Currently, the enzyme is obtained from bacteria, Escherichia coli and Erwinia chrysanthemi. The bacterial enzymes family is subdivided in type I and type II; nevertheless, only type II have been employed in therapeutic proceedings. However, bacterial enzymes are susceptible to induce immune responses, leading to a high incidence of adverse effects compromising the effectiveness of the treatment...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27824051/genomic-analyses-identify-recurrent-mef2d-fusions-in-acute-lymphoblastic-leukaemia
#6
Zhaohui Gu, Michelle Churchman, Kathryn Roberts, Yongjin Li, Yu Liu, Richard C Harvey, Kelly McCastlain, Shalini C Reshmi, Debbie Payne-Turner, Ilaria Iacobucci, Ying Shao, I-Ming Chen, Marcus Valentine, Deqing Pei, Karen L Mungall, Andrew J Mungall, Yussanne Ma, Richard Moore, Marco Marra, Eileen Stonerock, Julie M Gastier-Foster, Meenakshi Devidas, Yunfeng Dai, Brent Wood, Michael Borowitz, Eric E Larsen, Kelly Maloney, Leonard A Mattano, Anne Angiolillo, Wanda L Salzer, Michael J Burke, Francesca Gianni, Orietta Spinelli, Jerald P Radich, Mark D Minden, Anthony V Moorman, Bella Patel, Adele K Fielding, Jacob M Rowe, Selina M Luger, Ravi Bhatia, Ibrahim Aldoss, Stephen J Forman, Jessica Kohlschmidt, Krzysztof Mrózek, Guido Marcucci, Clara D Bloomfield, Wendy Stock, Steven Kornblau, Hagop M Kantarjian, Marina Konopleva, Elisabeth Paietta, Cheryl L Willman, Mignon L Loh, Stephen P Hunger, Charles G Mullighan
Chromosomal rearrangements are initiating events in acute lymphoblastic leukaemia (ALL). Here using RNA sequencing of 560 ALL cases, we identify rearrangements between MEF2D (myocyte enhancer factor 2D) and five genes (BCL9, CSF1R, DAZAP1, HNRNPUL1 and SS18) in 22 B progenitor ALL (B-ALL) cases with a distinct gene expression profile, the most common of which is MEF2D-BCL9. Examination of an extended cohort of 1,164 B-ALL cases identified 30 cases with MEF2D rearrangements, which include an additional fusion partner, FOXJ2; thus, MEF2D-rearranged cases comprise 5...
November 8, 2016: Nature Communications
https://www.readbyqxmd.com/read/27807962/-cluster-statistical-analysis-in-epidemiology
#7
Patrizia Schifano, Michela Leone, Paola Michelozzi
Statistical analysis represents a critical point in cluster analysis, because a methodology able to take into consideration the complexity of this analysis has not yet been developed. However, a common approach in statistical analysis of a suspected cluster is a necessary tool for public health operators who have to face population worries and requests. We propose an approach for the analysis of clusters and discuss the main limitations and strengths of the used methods. To this aim, we present, as a case study, the spatial clustering analysis of acute lymphoblastic leukaemia (ALL) cases among children in Rome between 2000 and 2011...
September 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27807957/-the-contribution-of-the-italian-association-of-paediatric-haematology-and-oncology-aieop
#8
Roberto Rondelli, Momcilo Jankovic, Annarosa Soresina, Maria Grazia Valsecchi, Marisa De Rosa, Marina Cuttini, Riccardo Haupt, Maurizio Aricò, Gianni Bisogno, Franco Locatelli, Corrado Magnani, Franco Merletti, Marco Zecca, Andrea Pession
Since 1972, children affected by cancer took advantage from multi-centric diagnostic and therapeutic protocols produced by the Italian Association of paediatric haematology and oncology (AIEOP). At the beginning, these protocols were used in few well-trained centres, later in almost all Italian haemato-oncological centres. The need of a careful monitoring of his own activity induced AIEOP to achieve, in 1989, an Italian hospital- based registry (database Mod.1.01) of malignant tumours diagnosed and treated in the participating centres, with the aim to quantify the number of cases diagnosed and treated in the different centres, the agreement (or not) to official diagnostic- therapeutic protocols, and the extraregional migration...
September 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27803537/an-unusual-site-of-acute-lymphoblastic-leukaemia-relapse-challenge-for-gynaecologists
#9
Kamal Kant Sahu, Gaurav Prakash, Prudhviraj Sanamandra, Alka Khadwal, Pranab Dey, Prashant Sharma, Subhash Chander Varma, Pankaj Malhotra
No abstract text is available yet for this article.
October 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27797802/leukaemic-infiltration-of-the-optic-nerve-head-a-rare-site-of-initial-relapse
#10
Shailaja Bhat Shenoy, Thoiba Karam, Karthik Udupa, Bhavna Nayal
A 24-year-old male patient with acute lymphoblastic leukaemia (ALL), in complete remission, presented with the symptoms of gradual onset painless diminution of vision in the right eye (OD) of 2-month duration. On examination, best-corrected visual acuity in OD was finger-counting at 1 m and near vision was less than N36 Anterior segment examination was normal, except for the presence of relative afferent pupillary defect in OD. Fundus examination showed optic disc oedema, peripapillary and vitreous haemorrhage, dilated and tortuous veins over the disc and presence of subretinal infiltrates and subretinal fluid around the optic disc...
October 19, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27766623/advances-in-understanding-the-pathogenesis-of-cns-acute-lymphoblastic-leukaemia-and-potential-for-therapy
#11
Liron Frishman-Levy, Shai Izraeli
Central nervous system acute lymphoblastic leukaemia (CNS-ALL) is a major clinical problem. CNS-directed 'prophylactic' chemo- or radio - therapy is associated with significant early and long-term toxicity. Moreover, greater than a third of the relapses occur in the CNS. To design specific, more effective and less toxic therapy and for personalized precise adjustment of prophylactic therapy there is a need for better understanding of the biology of this disease. Specifically, the precise neurotropic mechanisms of ALL are currently unclear, as is the pathogenesis of CNS relapse...
October 21, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27750279/t-cell-acute-leukaemia-exhibits-dynamic-interactions-with-bone-marrow-microenvironments
#12
Edwin D Hawkins, Delfim Duarte, Olufolake Akinduro, Reema A Khorshed, Diana Passaro, Malgorzata Nowicka, Lenny Straszkowski, Mark K Scott, Steve Rothery, Nicola Ruivo, Katie Foster, Michaela Waibel, Ricky W Johnstone, Simon J Harrison, David A Westerman, Hang Quach, John Gribben, Mark D Robinson, Louise E Purton, Dominique Bonnet, Cristina Lo Celso
It is widely accepted that complex interactions between cancer cells and their surrounding microenvironment contribute to disease development, chemo-resistance and disease relapse. In light of this observed interdependency, novel therapeutic interventions that target specific cancer stroma cell lineages and their interactions are being sought. Here we studied a mouse model of human T-cell acute lymphoblastic leukaemia (T-ALL) and used intravital microscopy to monitor the progression of disease within the bone marrow at both the tissue-wide and single-cell level over time, from bone marrow seeding to development/selection of chemo-resistance...
October 17, 2016: Nature
https://www.readbyqxmd.com/read/27748273/side-scatter-versus-cd45-flow-cytometric-plot-can-distinguish-acute-leukaemia-subtypes
#13
Annapurna Saksena, Parul Gautam, Parth Desai, Naresh Gupta, A P Dubey, Tejinder Singh
BACKGROUND & OBJECTIVES: Flow cytometry is an important tool to diagnose acute leukaemia. Attempts are being made to find the minimal number of antibodies for correctly diagnosing acute leukaemia subtypes. The present study was designed to evaluate the analysis of side scatter (SSC) versus CD45 flow dot plot to distinguish acute myeloid leukaemia (AML) from acute lymphoblastic leukaemia (ALL), with minimal immunological markers. METHODS: One hundred consecutive cases of acute leukaemia were evaluated for blast cluster on SSC versus CD45 plots...
May 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27743784/-hepatitis-b-virus-reactivation-after-cessation-of-prophylaxis-with-entecavir-in-a-patient-with-burkitt-type-acute-lymphoblastic-leukaemia-treated-with-rituximab
#14
Alba Juan Juan, Noemi Caballero de García, Helena Masnou Ridaura, Marga Sala Llinas, M Rosa Morillas, Ramon Planas Vila
No abstract text is available yet for this article.
October 12, 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27725005/maternal-diet-quality-before-pregnancy-and-risk-of-childhood-leukaemia
#15
Amanda W Singer, Suzan L Carmichael, Steve Selvin, Cecilia Fu, Gladys Block, Catherine Metayer
Previous studies on maternal nutrition and childhood leukaemia risk have focused on the role of specific nutrients such as folate and have not considered broader measures of diet quality, which may better capture intake of diverse nutrients known to impact fetal development. We examined the relationship between maternal diet quality before pregnancy, as summarised by a diet quality index, and risk of childhood acute lymphoblastic leukaemia (ALL) and acute myeloid leukaemia (AML) in a case-control study in California...
October 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27698462/deciphering-kras-and-nras-mutated-clone-dynamics-in-mll-af4-paediatric-leukaemia-by-ultra-deep-sequencing-analysis
#16
Luca Trentin, Silvia Bresolin, Emanuela Giarin, Michela Bardini, Valentina Serafin, Benedetta Accordi, Franco Fais, Claudya Tenca, Paola De Lorenzo, Maria Grazia Valsecchi, Giovanni Cazzaniga, Geertruy Te Kronnie, Giuseppe Basso
To induce and sustain the leukaemogenic process, MLL-AF4+ leukaemia seems to require very few genetic alterations in addition to the fusion gene itself. Studies of infant and paediatric patients with MLL-AF4+ B cell precursor acute lymphoblastic leukaemia (BCP-ALL) have reported mutations in KRAS and NRAS with incidences ranging from 25 to 50%. Whereas previous studies employed Sanger sequencing, here we used next generation amplicon deep sequencing for in depth evaluation of RAS mutations in 36 paediatric patients at diagnosis of MLL-AF4+ leukaemia...
October 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27688725/impact-of-mtor-expression-on-clinical-outcome-in-paediatric-patients-with-b-cell-acute-lymphoblastic-leukaemia-preliminary-report
#17
Edyta Ulińska, Katarzyna Mycko, Elżbieta Sałacińska-Łoś, Agata Pastorczak, Alicja Siwicka, Wojciech Młynarski, Michał Matysiak
AIM OF THE STUDY: To characterise expression of mTOR (mammalian target of rapamycin) in childhood B-cell acute lymphoblastic leukaemia (ALL), and to evaluate a possible link between mTOR and clinical characteristics. MATERIAL AND METHODS: The examined group consisted of 21 consecutive patients, aged 1-18 years, diagnosed with B-cell ALL in 2010, and 10 relapsed B-cell ALL patients diagnosed for the first time between 2009 and 2011, who developed relapse before 2014...
2016: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/27680030/gonadal-function-in-boys-with-newly-diagnosed-cancer-before-the-start-of-treatment
#18
Kiki M G J Wigny, Wendy van Dorp, Anne-Lotte L F van der Kooi, Yolanda B de Rijke, Andrica C H de Vries, Marij Smit, Saskia M F Pluijm, Erica L T van den Akker, Rob Pieters, Joop S E Laven, Marry M van den Heuvel-Eibrink
STUDY QUESTION: Are Inhibin B and testosterone levels reduced in boys with newly diagnosed cancer prior to therapy? SUMMARY ANSWER: Pretreatment serum levels of Inhibin B and testosterone are significantly reduced in boys with newly diagnosed cancer, compared to reference values. WHAT IS ALREADY KNOWN: Disease-related gonadal impairment has been demonstrated in girls and young women diagnosed with cancer, prior to therapy. STUDY DESIGN, SIZE, DURATION: We conducted a descriptive study in boys newly diagnosed with cancer between January 2006 and February 2014...
September 28, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27677054/survival-trends-in-childhood-chronic-myeloid-leukaemia-in-southern-eastern-europe-and-the-united-states-of-america
#19
Maria A Karalexi, Margarita Baka, Anton Ryzhov, Anna Zborovskaya, Nadya Dimitrova, Snezana Zivkovic, Sultan Eser, Luis Antunes, Mario Sekerija, Tina Zagar, Joana Bastos, Anna Demetriou, Domenic Agius, Margareta Florea, Daniela Coza, Sophia Polychronopoulou, Eftichia Stiakaki, Maria Moschovi, Emmanuel Hatzipantelis, Maria Kourti, Stelios Graphakos, Maria S Pombo-de-Oliveira, Hans Olov Adami, Eleni Th Petridou
AIM: To assess trends in survival and geographic disparities among children (0-14 years) with chronic myeloid leukaemia (CML) before and after the introduction of molecular therapy, namely tyrosine kinase inhibitors (TKIs) in Southern-Eastern European (SEE) countries and the USA. METHODS: We calculated survival among children with CML, acute lymphoblastic (ALL) and acute myeloid leukaemia (AML) in 14 SEE (1990-2014) cancer registries and the U.S. Surveillance, Epidemiology and End Results Program (SEER, 1990-2012)...
November 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27666896/microrna-101-regulates-t-cell-acute-lymphoblastic-leukemia-progression-and-chemotherapeutic-sensitivity-by-targeting-notch1
#20
Lu Qian, Wanggang Zhang, Bo Lei, Aili He, Lianhong Ye, Xingzhou Li, Xin Dong
The present study aimed to investigate the role of microRNA (miR)-101 in acute lymphoblastic leukemia progression and chemoresistance. Furthermore, a novel target gene of miR-101 was identified. Here, we confirmed that miR-101 was significantly downregulated in the blood samples of patients with T-cell acute lymphoblastic leukemia (T-ALL) compared with the healthy controls, as determined by reverse transcription quantitative polymerase chain reaction (RTqPCR) analysis. The in vitro experiments demonstrated that miR-101 significantly repressed the proliferation and invasion, and induced potent apoptosis in Jurkat cells, as determined by CCK-8, flow cytometer and cell invasion assays...
September 21, 2016: Oncology Reports
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