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https://www.readbyqxmd.com/read/28732079/lmp1-mediated-glycolysis-induces-myeloid-derived-suppressor-cell-expansion-in-nasopharyngeal-carcinoma
#1
Ting-Ting Cai, Shu-Biao Ye, Yi-Na Liu, Jia He, Qiu-Yan Chen, Hai-Qiang Mai, Chuan-Xia Zhang, Jun Cui, Xiao-Shi Zhang, Pierre Busson, Yi-Xin Zeng, Jiang Li
Myeloid-derived suppressor cells (MDSCs) are expanded in tumor microenvironments, including that of Epstein-Barr virus (EBV)-associated nasopharyngeal carcinoma (NPC). The link between MDSC expansion and EBV infection in NPC is unclear. Here, we show that EBV latent membrane protein 1 (LMP1) promotes MDSC expansion in the tumor microenvironment by promoting extra-mitochondrial glycolysis in malignant cells, which is a scenario for immune escape initially suggested by the frequent, concomitant detection of abundant LMP1, glucose transporter 1 (GLUT1) and CD33+ MDSCs in tumor sections...
July 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28728868/pdl1-expression-in-desmoplastic-melanoma-is-associated-with-tumor-aggressiveness-and-progression
#2
Stefan Kraft, Maria-Teresa Fernandez-Figueras, Nina A Richarz, Keith T Flaherty, Mai P Hoang
BACKGROUND: The prognostic role of programmed death ligand 1 (PDL1), CD8, and forkhead box p3 (FoxP3) expression in desmoplastic melanomas is unclear. METHODS: We correlated PDL1, p53, and Ki-67 expression with CD8(+) and FoxP3(+) immune infiltrates with clinicopathologic variables and patient outcomes in a series of 66 desmoplastic melanomas. RESULTS: Tumoral PDL1 expression (≥25%), which was seen in 21% of patients (14 of 66), significantly correlated with mixed histology, tumor thickness, mitoses, recurrence, and metastasis...
July 17, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28728677/dynamically-timed-stimulation-of-corticolimbic-circuitry-activates-a-stress-compensatory-pathway
#3
David Carlson, Lisa K David, Neil M Gallagher, Mai-Anh T Vu, Matthew Shirley, Rainbo Hultman, Joyce Wang, Caley Burrus, Colleen A McClung, Sunil Kumar, Lawrence Carin, Stephen D Mague, Kafui Dzirasa
BACKGROUND: The prefrontal cortex plays a critical role in regulating emotional behaviors, and dysfunction of prefrontal cortex-dependent networks has been broadly implicated in mediating stress-induced behavioral disorders including major depressive disorder. METHODS: Here we acquired multicircuit in vivo activity from eight cortical and limbic brain regions as mice were subjected to the tail suspension test (TST) and an open field test. We used a linear decoder to determine whether cellular responses across each of the cortical and limbic areas signal movement during the TST and open field test...
June 15, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28727771/randomized-controlled-trial-on-the-effects-of-a-supervised-high-intensity-exercise-program-in-patients-with-a-hematologic-malignancy-treated-with-autologous-stem-cell-transplantation-results-from-the-exist-study
#4
Saskia Persoon, Mai J M ChinAPaw, Laurien M Buffart, Roberto D K Liu, Pierre Wijermans, Harry R Koene, Monique C Minnema, Pieternella J Lugtenburg, Erik W A Marijt, Johannes Brug, Frans Nollet, Marie José Kersten
BACKGROUND: This single blind, multicenter randomized controlled trial aimed to evaluate the effectiveness of a supervised high intensity exercise program on physical fitness and fatigue in patients with multiple myeloma or lymphoma recently treated with autologous stem cell transplantation. METHODS: 109 patients were randomly assigned to the 18-week exercise intervention or the usual care control group. The primary outcomes included physical fitness (VO2peak and Wpeak determined using a cardiopulmonary exercise test; grip strength and the 30s chair stand test) and fatigue (Multidimensional Fatigue Inventory) and were assessed prior to randomization and after completion of the intervention or at similar time points for the control group...
2017: PloS One
https://www.readbyqxmd.com/read/28726400/quinoliniumolate-and-2h-1-2-3-triazole-derivatives-from-the-stems-of-paramignya-trimera-and-their-%C3%AE-glucosidase-inhibitory-activities-in-vitro-and-in-silico-studies
#5
Nhan T Nguyen, Phu H Dang, Ngoc X T Vu, Tho H Le, Mai T T Nguyen
From a CHCl3-soluble extract of the stems of Paramignya trimera, two new alkaloids, (E)-2-(prop-1-enyl)-N-methylquinolinium-4-olate (1) and (R)-2-ethylhexyl 2H-1,2,3-triazole-4-carboxylate (2), were isolated. Their structures were elucidated based on the spectroscopic data interpretation. Compound 2 possesses α-glucosidase inhibitory activity, with an IC50 value of 137.9 μM. Molecular docking studies of 1 and 2 with human maltase-glucoamylase (MGAM) were performed for the first time; thus, the 2,3-diH(+)-1H-1,2,3-triazolium cation (2i) showed good interactions with both MGAM-N (2QMJ) and -C (3TOP) terminal subunits...
July 20, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28725148/isolation-biological-evaluation-and-validated-hptlc-quantification-of-the-marker-constituent-of-the-edible-saudi-plant-sisymbrium-irio-l
#6
Shaza M Al-Massarani, Ali A El Gamal, Perwez Alam, Ebtesam S Al-Sheddi, Mai M Al-Oqail, Nida N Farshori
Phytochemical investigation and chromatographic purification of the n-hexane fraction of the aerial parts of the edible Saudi plant Sisymbrium irio led to the isolation of β-sitosterol (1), stigmasterol (2) and β-sitosterol-β-d-glucoside (3). The cytotoxic effects of the n-hexane, dichloromethane, ethyl acetate and n-butanol fractions were tested against three cancer cell lines viz., MCF-7, HCT-116 and HepG2, using the crystal violet staining (CVS) method, while the antibacterial activity against a number of pathogenic bacterial strains, was also estimated using the broth microdilution assay...
July 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28724666/braf-inhibitors-amplify-the-pro-apoptotic-activity-of-mek-inhibitors-by-inducing-er-stress-in-nras-mutant-melanoma
#7
Heike Niessner, Tobias Sinnberg, Corinna Kosnopfel, Keiran S M Smalley, Daniela Beck, Christian Praetorius, Marion Mai, Stefan Beissert, Dagmar Kulms, Martin Schaller, Claus Garbe, Keith T Flaherty, Dana Westphal, Ines Wanke, Friedegund Meier
<p>NRAS mutations in malignant melanoma are associated with aggressive disease requiring rapid antitumor intervention, but there is no approved targeted therapy for this subset of patients. In clinical trials, the MEK inhibitor (MEKi) binimetinib displayed modest antitumor activity, making combinations a requisite. In a previous study, the BRAF inhibitor (BRAFi) vemurafenib was shown to induce endoplasmic reticulum (ER) stress that together with inhibition of the RAF-MEK-ERK (MAPK) pathway amplified its pro-apoptotic activity in BRAF-mutant melanoma...
July 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28722423/generation-of-a-cgmp-indicator-with-an-expanded-dynamic-range-by-optimization-of-amino-acid-linkers-between-a-fluorescent-protein-and-pde5%C3%AE
#8
Shogo Matsuda, Kazuki Harada, Motoki Ito, Mai Takizawa, Devina Wongso, Takashi Tsuboi, Tetsuya Kitaguchi
Here we describe the development of a single fluorescent protein (FP)-based cGMP indicator, Green cGull, based on the cGMP binding domain from mouse phosphodiesterase 5α. The dynamic range of Green cGull was enhanced to a 7.5-fold fluorescence change upon cGMP binding by optimization of the amino acid linkers between the cGMP binding domain and FP. Green cGull has excitation and emission peaks at 498 and 522 nm, respectively, and specifically responds to cGMP in a dose-dependent manner. Live cell imaging analysis revealed that addition of a nitric oxide (NO) donor induced different cGMP kinetics and was cell-type dependent...
January 27, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722345/anti-markovnikov-hydrofunctionalization-of-alkenes-use-of-a-benzyl-group-as-a-traceless-redox-active-hydrogen-donor
#9
Geoffroy Hervé Lonca, Derek Yiren Ong, Thi Mai Huong Tran, Ciputra Tejo, Shunsuke Chiba, Fabien Gagosz
A protocol for the anti-Markovnikov hydrofunctionalization of alkenes, that utilizes a benzyl group as a traceless redox-active hydrogen donor, has been developed. Under copper catalysis and in the presence of CF3- or N3-containing hypervalent iodine reagents, a series of homoallylic alcohol derivatives could be regioselectivity hydrofunctionalized. A similar principle was also applied to the hydrofunctionalization of alkenols.
July 19, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28721323/endovascular-management-of-stroke-patients-with-large-vessel-occlusion-and-minor-stroke-symptoms
#10
REVIEW
Saeed A Alqahtani, Andrew B Stemer, Michael F McCullough, Randy S Bell, Jeffrey Mai, Ai-Hsi Liu, Rocco A Armonda
Endovascular mechanical thrombectomy for stroke patients with large vessel occlusion (LVO) in the anterior circulation has become the standard of care based on several major randomized clinical trials. The successful result reported by these trials constitutes what may be the largest achievement in the history of neurological sciences. However, most of these mechanical thrombectomy trials (except for the multicenter randomized clinical trial of endovascular treatment for acute ischemic stroke in the Netherlands, i...
June 15, 2017: Curēus
https://www.readbyqxmd.com/read/28720554/is-there-an-association-between-cortisol-and-hypertension-in-overweight-or-obese-children
#11
Aleid Jg Wirix, Martijn Jj Finken, Ines A Von Rosenstiel-Jadoul, Annemieke C Heijboer, Jeroen Nauta, Jaap W Groothoff, Mai Jm Chinapaw, Joana E Kist-Van Holthe
OBJECTIVE: The precise mechanisms behind the development of hypertension in overweight or obese children are not yet completely understood. Alterations in hypothalamus-pituitary-adrenal axis activity may play a role. We aimed to investigate if there is an association between cortisol parameters and hypertension in overweight or obese children. METHODS: Random urine (n=180) and early-morning saliva samples (n=126) for assessment of cortisol and cortisone were collected from 1) hypertensive overweight children (n=50); 2) normotensive overweight children (n=145) and 3) normotensive non-overweight children (n=75)...
July 17, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28719969/dmf-as-an-additive-in-two-step-spin-coating-method-for-20-conversion-efficiency-perovskite-solar-cells
#12
Jionghua Wu, Xin Xu, Yanhong Zhao, Jiangjian Shi, Yuzhuan Xu, Yanhong Luo, Dongmei Li, Huijue Wu, Qingbo Meng
DMF as additive has been employed in FAI/MAI/IPA (FA= CH2 (NH2)2, MA=CH3NH3, IPA is isopropanol) solution for two-step multi-cycle spin coating method in order to prepare high quality FAxMA1-xPbI2.55Br0.45 perovskite films. Further investigation reveals that the existence of DMF in the FAI/MAI/IPA solution can facilitate perovskite conversion, improve the film morphology and reduce crystal defects, thus enhance charge transfer efficiency. By optimization toward the DMF amount and spin coating cycles, compact, pinhole-free perovskite films are obtained...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28719773/methods-for-the-2016-socioeconomic-and-health-survey-in-chi-linh-health-and-demographic-surveillance-system-chililab-hdss
#13
Hoang Van Minh, Tran Thu Ngan, Nguyen Bao Ngoc, Vu Duy Kien, Vu Quynh Mai, Tran Bich Phuong, Tran Tuan Anh, Kim Bao Giang, Phan Van Tuong, Ha Anh Duc, Do Van Dung
The Chi Linh Health and Demographic Surveillance System (CHILILAB HDSS) was established in 2004 in Chi Linh District, Hai Duong Province (Northern Vietnam). Up to 2013, 22 rounds of data collection at CHILILAB HDSS had been completed. This article reports the methods and key sociodemographic characteristics of households and individuals captured by the survey conducted among the subsamples of CHILILAB HDSS in 2016. We observed and compared them to the previous HDSS survey rounds and found no significant differences for household size and gender compositions in CHILILAB HDSS...
July 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28719454/the-difference-in-clinical-outcomes-after-anterior-cervical-fusion-disk-replacement-and-foraminotomy-in-professional-athletes
#14
Harry T Mai, Danielle S Chun, Andrew D Schneider, Andrew C Hecht, Joseph C Maroon, Wellington K Hsu
STUDY DESIGN: Retrospective case series. OBJECT: To compare postoperative outcomes of professional athletes treated for cervical disk herniation after anterior cervical discectomy and fusion (ACDF) and posterior foraminotomy (PF), or total disk replacement (TDR). SUMMARY OF BACKGROUND DATA: ACDF, PF, and TDR have all led to excellent outcomes in the general population but the unique demands in the professional athlete necessitate specific study...
July 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28719295/regional-differences-in-the-prevalence-of-major-opportunistic-infections-among-antiretroviral-na%C3%A3-ve-human-immunodeficiency-virus-patients-in-japan-northern-thailand-northern-vietnam-and-the-philippines
#15
Louie Mar A Gangcuangco, Ikumi Sawada, Naho Tsuchiya, Cuong D Do, Thanh Thuy T Pham, Archawin Rojanawiwat, Marissa Alejandria, Katerina Leyritana, Yoshiyuki Yokomaku, Panita Pathipvanich, Koya Ariyoshi
To identify regional differences in the distribution of opportunistic infections (OIs) among human immunodeficiency virus (HIV)-infected patients in Asia, the medical records of antiretroviral therapy (ART)-naïve patients who attended the following tertiary hospitals from 2003 to 2011 were reviewed: Nagoya Medical Center (NMC, Nagoya, Japan), Lampang Hospital (LPH, Lampang, northern Thailand), Bach Mai Hospital (BMH, Hanoi, northern Vietnam), and Philippine General Hospital (PGH, Manila, Philippines). Logistic regression analyses were performed to identify associations between country of origin and risk of major OIs...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719017/contrasting-sirtuin-and-parp-activity-of-selected-2-4-6-trisubstituted-benzimidazoles
#16
Keng Yoon Yeong, Soo Choon Tan, Chun-Wai Mai, Chee-Onn Leong, Felicia Fei-Lei Chung, Yean Kee Lee, Chin Fei Chee, Noorsaadah Abdul Rahman
Both sirtuin and poly(ADP-ribose)polymerase (PARP) family of enzymes utilize NAD+ as co-substrate. Inhibitors of sirtuins and PARPs are important tools in drug discovery as they are reported to be linked to multiple diseases such as cancer. New potent sirtuin inhibitors (2,4,6-trisubstituted benzimidazole) were discovered from reported PARP inhibitor scaffold. Interestingly, the synthesized compounds have contrasting sirtuin and PARP-1 inhibitory activity. We showed that modification on benzimidazoles may alter their selectivity towards sirtuin or PARP-1 enzymes...
July 18, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28717904/a-description-of-deaths-following-emergency-abdominal-surgery
#17
Henrik Wolsted, Ann Merete Møller, Mai-Britt Tolstrup, Morten Vester-Andersen
OBJECTIVE: Emergency major abdominal surgery carries a high mortality rate. The aim of this present study was to characterize a population of deceased abdominal surgical patients, to examine how many died unexpectedly and how many were subject to treatment limitations. MATERIALS AND METHODS: We included adult emergency abdominal surgical patients who died within 30 days postoperatively. We collected data from January 1, 2013, to December 31, 2014, in a Danish tertiary care hospital (Herlev)...
July 17, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28717360/ethanol-enhances-high-salinity-stress-tolerance-by-detoxifying-reactive-oxygen-species-in-arabidopsis-thaliana-and-rice
#18
Huong Mai Nguyen, Kaori Sako, Akihiro Matsui, Yuya Suzuki, Mohammad Golam Mostofa, Chien Van Ha, Maho Tanaka, Lam-Son Phan Tran, Yoshiki Habu, Motoaki Seki
High-salinity stress considerably affects plant growth and crop yield. Thus, developing techniques to enhance high-salinity stress tolerance in plants is important. In this study, we revealed that ethanol enhances high-salinity stress tolerance in Arabidopsis thaliana and rice. To elucidate the molecular mechanism underlying the ethanol-induced tolerance, we performed microarray analyses using A. thaliana seedlings. Our data indicated that the expression levels of 1,323 and 1,293 genes were upregulated by ethanol in the presence and absence of NaCl, respectively...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28716628/transduction-of-a-neospora-caninum-antigen-gene-into-mammalian-cells-using-a-modified-bombyx-mori-nucleopolyhedrovirus-for-antibody-production
#19
Tatsuya Kato, Kohei Itagaki, Mai Yoshimoto, Rikito Hiramatsu, Hamizah Suhaimi, Tetsuya Kohsaka, Enoch Y Park
Autographa californica multiple nucleopolyhedrovirus (AcMNPV) can easily enter and transduce foreign genes into mammalian cells, but these functions are difficult for Bombyx mori nucleopolyhedrovirus (BmNPV). In this study, we investigated the induction of antibody production in mice immunized with an engineered BmNPV. The GP64 of BmNPV (BmGP64) was replaced with the GP64 of AcMNPV (AcGP64); this construct, designated BmNPVΔbgp/AcGP64, displays AcGP64 on the surface of BmNPV. The Neospora caninum antigen (NcSRS2) expression cassette, consisting of the cytomegalovirus immediate-early promoter and NcSRS2 from N...
July 14, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28714990/an-approach-to-suppress-the-evolution-of-resistance-in-braf-v600e-mutant-cancer
#20
Yaohua Xue, Luciano Martelotto, Timour Baslan, Alberto Vides, Martha Solomon, Trang Thi Mai, Neelam Chaudhary, Greg J Riely, Bob T Li, Kerry Scott, Fabiola Cechhi, Ulrika Stierner, Kalyani Chadalavada, Elisa de Stanchina, Sarit Schwartz, Todd Hembrough, Gouri Nanjangud, Michael F Berger, Jonas Nilsson, Scott W Lowe, Jorge S Reis-Filho, Neal Rosen, Piro Lito
The principles that govern the evolution of tumors exposed to targeted therapy are poorly understood. Here we modeled the selection and propagation of an amplification in the BRAF oncogene (BRAF(amp)) in patient-derived tumor xenografts (PDXs) that were treated with a direct inhibitor of the kinase ERK, either alone or in combination with other ERK signaling inhibitors. Single-cell sequencing and multiplex fluorescence in situ hybridization analyses mapped the emergence of extra-chromosomal amplification in parallel evolutionary trajectories that arose in the same tumor shortly after treatment...
July 17, 2017: Nature Medicine
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