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https://www.readbyqxmd.com/read/29774105/pre-clinical-activity-of-targeting-the-pi3k-akt-mtor-pathway-in-burkitt-lymphoma
#1
Maria Bhatti, Thomas Ippolito, Cory Mavis, Juan Gu, Mitchell S Cairo, Megan S Lim, Francisco Hernandez-Ilizaliturri, Matthew J Barth
Though outcomes for pediatric Burkitt lymphoma (BL) have improved significantly in recent decades with intensive multi-agent chemotherapy and the addition of rituximab, chemotherapy resistance remains a significant impediment to cure following relapse. Activation of the PI3K/AKT pathway has been implicated in Burkitt lymphomagenesis and increased PI3K/AKT activation has been associated with worse outcomes in adults with aggressive B-cell non-Hodgkin lymphoma (B-NHL). Inhibitors of the PI3K/AKT pathway have been approved for the treatment of refractory indolent B-NHL and continue to be investigated for treatment of aggressive B-NHLs...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29772696/the-effect-of-negative-pressure-wound-therapy-with-and-without-instillation-on-mature-biofilms-in-vitro
#2
Shamaila Tahir, Matthew Malone, Honghua Hu, Anand Deva, Karen Vickery
BACKGROUND: To investigate the effect of negative pressure wound therapy (NPWT) with and without instillation (NPWTi) on in vitro mature biofilm. METHODS: Mature biofilms of Pseudomonas aeruginosa and Staphylococcus aureus were grown under shear (130 rpm) on polycarbonate coupons in a CDC biofilm reactor for 3 days. Coupons containing biofilms were placed in a sterile petri dish and sealed using NPWT or NPWTi. Coupons were exposed to treatment for 24 h with NPWT alone or with instillation of: Povidone iodine solution (PVP-I) (10% w / v equivalent to 1% w / v available iodine, BETADINE® , Mundipharma, Singapore), surfactant based antimicrobial solution with polyhexamethylene biguanide (SBPHMB) (Prontosan® , B Braun Medical, Melsungen, Germany), Gentamicin 1 µg/mL (GM) (G1264 Sigma-Aldrich Pty Ltd...
May 16, 2018: Materials
https://www.readbyqxmd.com/read/29772353/cardiac-profile-of-chimeric-antigen-receptor-car-t-cell-therapy-in-children-a-single-institution-experience
#3
Danielle Burstein, Shannon Maude, Stephen Grupp, Heather Griffis, Joseph Rossano, Kimberly Lin
BACKGROUND: Immunotherapy with chimeric antigen receptor (CAR)-modified T-cells targeting CD19 for pediatric acute lymphoblastic leukemia (ALL) has demonstrated significant efficacy. The principle toxicity is cytokine release syndrome with resultant hypotension. However, the spectrum of cardiovascular effects associated with CAR T-cell therapy has not been systematically evaluated. METHODS: We reviewed all patients who received CD19-directed CAR T-cells at the Children's Hospital of Philadelphia between April 2012 and September 2016...
May 14, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29769727/microbial-signals-drive-pre-leukaemic-myeloproliferation-in-a-tet2-deficient-host
#4
Marlies Meisel, Reinhard Hinterleitner, Alain Pacis, Li Chen, Zachary M Earley, Toufic Mayassi, Joseph F Pierre, Jordan D Ernest, Heather J Galipeau, Nikolaus Thuille, Romain Bouziat, Manuel Buscarlet, Daina L Ringus, Yitang Wang, Ye Li, Vu Dinh, Sangman M Kim, Benjamin D McDonald, Matthew A Zurenski, Mark W Musch, Glaucia C Furtado, Sergio A Lira, Gottfried Baier, Eugene B Chang, A Murat Eren, Christopher R Weber, Lambert Busque, Lucy A Godley, Elena F Verdú, Luis B Barreiro, Bana Jabri
Somatic mutations in tet methylcytosine dioxygenase 2 (TET2), which encodes an epigenetic modifier enzyme, drive the development of haematopoietic malignancies1-7 . In both humans and mice, TET2 deficiency leads to increased self-renewal of haematopoietic stem cells with a net developmental bias towards the myeloid lineage1,4,8,9 . However, pre-leukaemic myeloproliferation (PMP) occurs in only a fraction of Tet2-/- mice8,9 and humans with TET2 mutations1,3,5-7 , suggesting that extrinsic non-cell-autonomous factors are required for disease onset...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29769513/ovarian-endometrioid-adenocarcinoma-arising-in-endometriosis-a-case-report
#5
K Nahar, B Ferdous, N Akhter, P A Shamsunnahar, K Khatun, S A Begum, M A Aziz
Malignant transformation of ovarian endometriosis was first described in 1925 by Sampson; later on it has been described in extragonadal regions by few authors also. Ovarian endometrioid and clear cell carcinoma are highly associated with endometriosis. Here we present a case of malignant transformation of ovarian endometrioma into endometrioid adenocarcinoma and review the clinical and pathological features of these tumors. A 45-years old infertile woman diagnosed as a case of bilateral chocolate cyst with pelvic endometriosis underwent total hysterectomy with bilateral salpingo-oophorectomy...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29768025/the-post-injury-inflammatory-state-and-the-bone-marrow-response-to-anemia
#6
Tyler J Loftus, Juan C Mira, Elizabeth S Miller, Kolenkode B Kannan, Jessica M Plazas, Daniel Delitto, Julie A Stortz, Jennifer E Hagen, Hari K Parvataneni, Kalia K Sadasivan, Scott C Brakenridge, Frederick A Moore, Lyle L Moldawer, Philip A Efron, Alicia M Mohr
RATIONALE: The pathophysiology of persistent injury-associated anemia is incompletely understood, and human data are sparse. OBJECTIVE: To translate pre-clinical findings by characterizing injury-associated anemia among critically ill trauma patients. This study compared elective hip repair patients with an acute stress response to severely injured trauma patients with a prolonged stress response and evaluated the bone marrow response to anemia. METHODS: A translational prospective observational cohort study comparing severely injured, blunt trauma patients who had operative fixation of a hip or femur fracture (n=17) with elective hip repair patients (n=22) and healthy donors (n=8)...
May 16, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29760982/biodynamic-digital-holography-of-chemoresistance-in-a-pre-clinical-trial-of-canine-b-cell-lymphoma
#7
Honggu Choi, Zhe Li, Hao Sun, Dan Merrill, John Turek, Michael Childress, David Nolte
Biodynamic digital holography was used to obtain phenotypic profiles of canine non-Hodgkin B-cell lymphoma biopsies treated with standard-of-care chemotherapy. Biodynamic signatures from the living 3D tissues were extracted using fluctuation spectroscopy from intracellular Doppler light scattering in response to the molecular mechanisms of action of therapeutic drugs that modify a range of internal cellular motions. The standard-of-care to treat B-cell lymphoma in both humans and dogs is a combination CHOP therapy that consists of doxorubicin, prednisolone, cyclophosphamide and vincristine...
May 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29760957/simulated-microgravity-induces-a-cellular-regression-of-the-mature-phenotype-in-human-primary-osteoblasts
#8
Magda Gioia, Anna Michaletti, Manuel Scimeca, Mario Marini, Umberto Tarantino, Lello Zolla, Massimo Coletta
Decreased mechanical loading on bones, such as prolonged bed rest and microgravity during space flights, leads to the development of an osteoporotic-like phenotype. Although osteoblast hypo-functionality is reported to be involved in the progression of bone pathological conditions, the cellular mechanisms of this process remain largely unknown. The combined application of mass spectrometry "-omics" and histochemical and ultrastructural approaches have been employed to investigate the effects of the gravitational unloading on human bone-cell biology...
2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29760700/bacillus-calmette-gu%C3%A3-rin-induced-trained-immunity-is-not-protective-for-experimental-influenza-a-anhui-1-2013-h7n9-infection-in-mice
#9
Charlotte L C J de Bree, Renoud J Marijnissen, Junda M Kel, Sietske K Rosendahl Huber, Peter Aaby, Christine Stabell Benn, Marcel V W Wijnands, Dimitri A Diavatopoulos, Reinout van Crevel, Leo A B Joosten, Mihai G Netea, John Dulos
Avian influenza A of the subtype H7N9 has been responsible for almost 1,600 confirmed human infections and more than 600 deaths since its first outbreak in 2013. Although sustained human-to-human transmission has not been reported yet, further adaptations to humans in the viral genome could potentially lead to an influenza pandemic, which may have severe consequences due to the absence of pre-existent immunity to this strain at population level. Currently there is no influenza A (H7N9) vaccine available. Therefore, in case of a pandemic outbreak, alternative preventive approaches are needed, ideally even independent of the type of influenza virus outbreak...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29760223/genomic-heterogeneity-and-the-small-renal-mass
#10
Daiki Ueno, Zuoquan Xie, Marta Boeke, Jamil Syed, Kevin A Nguyen, Patrick McGillivray, Adebowale Adeniran, Peter A Humphrey, Garrett M Dancik, Yuval Kluger, Zongzhi Liu, Harriet M Kluger, Brian Shuch
PURPOSE: Tumor heterogeneity may represent a barrier to pre-operative genomic characterization by needle biopsy in clear cell renal cell carcinoma (ccRCC). The extent of heterogeneity in small renal tumors remains unknown. Therefore, we set out to evaluate heterogeneity in resected large and small renal tumors. EXPERIMENTAL DESIGN: We conducted a study from 2013 through 2016, that evaluated 47 consecutive ccRCC tumors resected during radical or partial nephrectomy...
May 14, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29759551/genomics-and-pharmacogenomics-of-pediatric-acute-lymphoblastic-leukemia
#11
REVIEW
Chuan Wu, Wei Li
Acute lymphoblastic leukaemia (ALL) is a prevalent form of pediatric cancer that accounts for 70-80% of all leukemias. Genome-based analysis, exome sequencing, transcriptomics and proteomics have provided insight into genetic classification of ALL and helped identify novel subtypes of the disease. B and T cell-based ALL are two well-characterized genomic subtypes, significantly marked by bone marrow disorders, along with mutations in trisomy 21 and T53. The other ALLs include Early T-cell precursor ALL, Philadelphia chromosome-like ALL, Down syndrome-associated ALL and Relapsed ALL...
June 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29758086/cholinergic-excitation-complements-glutamate-in-coding-visual-information-in-retinal-ganglion-cells
#12
Santhosh Sethuramanujam, Gautam B Awatramani, Malcolm M Slaughter
Starburst amacrine cells release GABA and acetylcholine This study explores the coordinated function of starburst mediated cholinergic excitation and GABAergic inhibition to bistratified retinal ganglion cells, predominantly direction-selective ganglion cells (DSGCs) In rat retina, under our recording conditions, starbursts were found to provide the major excitatory drive to a sub-population of ganglion cells whose dendrites co-stratify with starburst dendrites (putative DSGCs) In mouse retina, recordings from genetically identified DSGCs at physiological temperatures reveal that ACh inputs dominate the response to small spot-high contrast light stimuli, with preferential addition of bipolar cell input shifting the balance towards glutamate for larger spot stimuli In addition, starbursts also appear to gate glutamatergic excitation to DSGCs by postsynaptic and possibly presynaptic inhibitory processes ABSTRACT: Starburst amacrine cells release both GABA and acetylcholine (ACh), allowing them to simultaneously mediate inhibition and excitation...
May 14, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29757276/fluorescence-molecular-tomography-for-in-vivo-imaging-of-glioblastoma-xenografts
#13
Jorge A Benitez, Ciro Zanca, Jianhui Ma, Webster K Cavenee, Frank B Furnari
Tumorigenicity is the capability of cancer cells to form a tumor mass. A widely used approach to determine if the cells are tumorigenic is by injecting immunodeficient mice subcutaneously with cancer cells and measuring the tumor mass after it becomes visible and palpable. Orthotopic injections of cancer cells aim to introduce the xenograft in the microenvironment that most closely resembles the tissue of origin of the tumor being studied. Brain cancer research requires intracranial injection of cancer cells to allow the tumor formation and analysis in the unique microenvironment of the brain...
April 26, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29756258/a-prospective-analysis-of-circulating-saturated-and-monounsaturated-fatty-acids-and-risk-of-non-hodgkin-lymphoma
#14
Yu-Han Chiu, Kimberly A Bertrand, Shumin Zhang, Francine Laden, Mara M Epstein, Bernard A Rosner, Stephanie Chiuve, Hannia Campos, Edward L Giovannucci, Jorge E Chavarro, Brenda M Birmann
Circulating saturated (SFA) and monounsaturated fatty acids (MUFA), which are predominantly derived from endogenous metabolism, may influence non-Hodgkin lymphoma (NHL) risk by modulating inflammation or lymphocyte membrane stability. However, few biomarker studies have evaluated NHL risk associated with these fats. We conducted a prospective study of 583 incident NHL cases and 583 individually matched controls with archived pre-diagnosis red blood cell (RBC) specimens in the Nurses' Health Study (NHS) and Health Professionals Follow-up Study (HPFS)...
May 14, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29755021/a-single-center-experience-of-post-transplant-lymphoproliferative-disorder-ptld-cases-after-pediatric-liver-transplantation-incidence-outcomes-and-association-with-food-allergy
#15
Zeren Barış, Figen Özçay, Özlem Yılmaz Özbek, Nihan Haberal, Faik Sarıalioğlu, Mehmet Haberal
BACKGROUND/AIMS: We evaluated our 16-year single-center experience of pediatric post-transplant lymphoproliferative disorder (PTLD) cases who underwent liver transplantation between 2001 and 2017. MATERIALS AND METHODS: Of the 236 pediatric patients who underwent liver transplantation between 2001 and 2017, the clinical and laboratory data of eight patients diagnosed with PTLD were reviewed. The pre-transplant Epstein-Barr virus (EBV) status of 172 patients was also recorded...
May 2018: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/29754771/epstein-barr-virus-specific-cytokine-induced-killer-cells-for-treatment-of-epstein-barr-virus-related-malignant-lymphoma
#16
Lisa-Marie Pfeffermann, Verena Pfirrmann, Sabine Huenecke, Melanie Bremm, Halvard Bonig, Hans-Michael Kvasnicka, Thomas Klingebiel, Peter Bader, Eva Rettinger
BACKGROUND: Prolonged immunosuppression or delayed T-cell recovery may favor Epstein-Barr virus (EBV) infection or reactivation after allogeneic hematopoietic stem cell transplantation (HSCT), which can lead to post-transplant lymphoproliferative disease (PTLD) and high-grade malignant B-cell lymphoma. Cytokine-induced killer (CIK) cells with dual specific anti-tumor and virus-specific cellular immunity may be applied in this context. METHODS: CIK cells with EBV-specificity were generated from peripheral blood mononuclear cells (PBMCs), expanded in the presence of interferon-γ, anti-CD3, interleukin (IL)-2 and IL-15 and were pulsed twice with EBV consensus peptide pool...
May 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29754474/oxymatrine-causes-hepatotoxicity-by-promoting-the-phosphorylation-of-jnk-and-induction-of-endoplasmic-reticulum-stress-mediated-by-ros-in-lo2-cells
#17
Li-Li Gu, Zhe-Lun Shen, Yang-Lei Li, Yi-Qi Bao, Hong Lu
Oxymatrine (OMT) often used in treatment for chronic hepatitis B virus infection in clinic. However, OMT-induced liver injury has been reported. In this study, we aim to investigate the possible mechanism of OMT-induced hepatotoxicity in human normal liver cells (L02). Exposed cells to OMT, the cell viability were decreased and apoptosis rate increased, the intracellular markers of oxidative stress were changed. Simultaneously, OMT altered apoptotic related proteins levels, including Bcl-2, Bax and pro-caspase-8/-9/-3...
May 10, 2018: Molecules and Cells
https://www.readbyqxmd.com/read/29753950/structure-of-the-lps-o-chain-from-fusobacterium-nucleatum-strain-mjr-7757-b
#18
Evgeny Vinogradov, Frank St Michael, Andrew D Cox
Fusobacterium nucleatum is an anaerobic bacterium found in the human mouth where it causes periodontitis. It was also found in colorectal cancer tissues and is linked with pregnancy complications, including pre-term and still births. Cell surface structures of the bacterium could be implicated in pathogenesis. Here we report the following structure of the lipopolysaccharide O-chain of F. nucleatum strain MJR 7757 B:where Lac is (R)-1-carboxyethyl (lactic acid residue); all monosaccharides are in the pyranose form...
April 25, 2018: Carbohydrate Research
https://www.readbyqxmd.com/read/29753156/antiviral-t-cells-for-adenovirus-in-the-pre-transplant-period-a-bridge-therapy-for-severe-combined-immunodeficiency
#19
Holly K Miller, Patrick J Hanley, Haili Lang, Christopher A Lazarski, Elizabeth A Chorvinsky, Sarah McCormack, Lauren Roesch, Shuroug Albihani, Marcus Dean, Fahmida Hoq, Roberta H Adams, Catherine Bollard, Michael D Keller
Viral infections can be life-threatening in patients with severe combined immunodeficiency (SCID) and other forms of profound primary immunodeficiency disorders both before and after hematopoietic stem cell transplant (HSCT). Adoptive immunotherapy with virus-specific T-cells (VST) has been utilized in many patients in the setting of HSCT, but has very rarely been attempted for treatment of viral infections before HSCT. Here we describe the use of VSTs in an infant with RAG1 SCID who had developed disseminated adenovirus which failed to improve on cidofovir...
May 9, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29752623/catalpol-promotes-the-survival-and-vegf-secretion-of-bone-marrow-derived-stem-cells-and-their-role-in-myocardial-repair-after-myocardial-infarction-in-rats
#20
Xing'ai Ju, Degang Xue, Tongyi Wang, Baiping Ge, Yu Zhang, Zhanquan Li
Bone mesenchymal stem cells (BMSCs) transplantation has been recognized as an effective method for the treatment of myocardial infarction (MI). However, its efficacy is always restricted by the low survival of transplanted BMSCs in the ischemic myocardium. The aim of this study was to investigate the effect of catalpol pre-treatment on the survival and vascular endothelial growth factor (VEGF) secretion of BMSCs under oxygen glucose deprivation (OGD) condition and their role in myocardial repair in a rat model of MI...
May 11, 2018: Cardiovascular Toxicology
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