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https://www.readbyqxmd.com/read/29335202/5-bromo-oxoisoaporphine-platinum-ii-complexes-exhibit-tumor-cell-cytotoxcicity-via-inhibition-of-telomerase-activity-and-disruption-of-c-myc-g-quadruplex-dna-and-mitochondrial-functions
#1
Zu-Zhuang Wei, Qi-Pin Qin, Ting Meng, Cai-Xing Deng, Hong Liang, Zhen-Feng Chen
Two platinum(II) complexes [Pt(L)(DMSO)Cl] (1) and [Pt(L)(pn)]Cl (2) with 5-bromo-oxoisoaporphine (H-L) were synthesized. We found that the two new platinum(II) complexes were more selective for Hep-G2 tumor cells than for normal cells (HL-7702, WI-38 and L-o2 cell lines). 5-Bromine-oxoisoaporphine platinum(II) complex 2 was a telomerase inhibitor targeting c-myc G4, and it triggered Hep-G2 cell apoptosis more potently than complex 1. Moreover, they induced cell apoptosis via disruption of mitochondrial functions...
January 4, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29333089/lentivirus-mediated-shrna-targeting-cnn2-inhibits-hepatocarcinoma-in-vitro-and-in-vivo
#2
Xueqing Kang, Feng Wang, Xiuwan Lan, Xiaolong Li, Shunxin Zheng, Zhilue Lv, Yuan Zhuang, Yongxiang Zhao, Sufang Zhou
Objective: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors with a high rate of mortality. Our previous study shows the expression of calponin 2 (CNN2) is up-regulated in hepatocellular carcinoma tissues, especially in metastatic ones. To better understand the role of CNN2 in HCC, RNA interference (RNAi) was used to explore its role in tumor growth and metastasis. Methods: Lentivirus-mediated CNN2-shRNA was transfected into SK-hep-1 cells, and the efficacy of CNN2 expression, cell migration, invasion, proliferation and cell cycles were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR), Western blot (WB), Transwell assay, methyl thiazol tetrazolium assay and flow cytometry, respectively...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29326168/cyclic-di-adenosine-monophosphate-c-di-amp-is-required-for-osmotic-regulation-in-staphylococcus-aureus-but-dispensable-for-viability-in-anaerobic-conditions
#3
Merve S Zeden, Christopher F Schuster, Lisa Bowman, Qiyun Zhong, Huw D Williams, Angelika Gründling
Cyclic di-adenosine monophosphate (c-di-AMP) is a recently discovered signaling molecule important for the survival of Firmicutes, a large bacterial group that includes notable pathogens such as Staphylococcus aureus. However, the exact role of this molecule has not been identified. dacA, the S. aureus gene encoding the diadenylate cyclase enzyme required for c-di-AMP production, cannot be deleted when bacterial cells are grown in rich medium, indicating that c-di-AMP is required for growth in this condition...
January 11, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29322787/beclin1-enhances-cisplatin-induced-apoptosis-via-bcl-2-modulated-autophagy-in-laryngeal-carcinoma-cells-hep-2
#4
M Yang, X M Yang, D H Yin, Q L Tang, L Wang, C Huang, P Li, S S Li
To investigate the role of Beclin1 in cisplatin-induced apoptosis in laryngeal carcinoma cells Hep-2 and to explore the potential mechanism. We up-regulated Beclin1 expression in Hep-2 cells. The survival rate and apoptotic rate were evaluated by MTT and flow cytometry (FCM). The Beclin1 overexpression group and the control group were treated with cisplatin for 24 hours. The proliferation and cell apoptosis of laryngeal cancer cell lines were evaluated. The mitochondrial membrane potentials were detected by DiOC6(3)...
2018: Neoplasma
https://www.readbyqxmd.com/read/29259809/the-addition-of-a-tension-night-splint-to-a-structured-home-rehabilitation-programme-in-patients-with-chronic-plantar-fasciitis-does-not-lead-to-significant-additional-benefits-in-either-pain-function-or-flexibility-a-single-blinded-randomised-controlled-trial
#5
Patrick C Wheeler
Objective: To identify any improvements in pain or function in patients with chronic plantar fasciitis following the use of a tension night splint (TNS). Methods: Single-blinded randomised controlled trial, with participants split evenly between intervention group (TNS + home exercise programme/HEP) and control group (HEP only). Follow-up at 3 months, with interim data at 6 weeks. Results: 40 patients recruited. Mean age 52.1 years, 33% male, mean body mass index 30...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29242877/unravelling-the-mechanisms-that-determine-the-uptake-and-metabolism-of-magnetic-single-and-multicore-nanoparticles-in-a-xenopus-laevis-model
#6
M Marín-Barba, H Gavilán, L Gutiérrez, E Lozano-Velasco, I Rodríguez-Ramiro, G N Wheeler, C J Morris, M P Morales, A Ruiz
Multicore superparamagnetic nanoparticles have been proposed as ideal tools for some biomedical applications because of their high magnetic moment per particle, high specific surface area and long term colloidal stability. Through controlled aggregation and packing of magnetic cores it is possible to obtain not only single-core but also multicore and hollow spheres with internal voids. In this work, we compare toxicological properties of single and multicore nanoparticles. Both types of particles showed moderate in vitro toxicity (MTT assay) tested in Hep G2 (human hepatocellular carcinoma) and Caco-2 (human colorectal adenocarcinoma) cells...
December 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/29228028/a-novel-indel-variant-in-ldlr-responsible-for-familial-hypercholesterolemia-in-a-chinese-family
#7
Hongyan Shu, Jingwei Chi, Jing Li, Wei Zhang, Wenshan Lv, Jie Wang, Yujie Deng, Xu Hou, Yangang Wang
Familial hypercholesterolemia (FH) is an inherited disorder characterized by elevation of serum cholesterol bound to low-density lipoprotein. Mutations in LDLR are the major factors responsible for FH. In this study, we recruited a four-generation Chinese family with FH and identified the clinical features of hypercholesterolemia. All affected individuals shared a novel indel mutation (c.1885_1889delinsGATCATCAACC) in exon 13 of LDLR. The mutation segregated with the hypercholesterolemia phenotype in the family...
2017: PloS One
https://www.readbyqxmd.com/read/29220868/incidence-and-prevalence-of-hepatitis-b-in-patients-with-diabetes-mellitus-in-the-uk-a-population-based-cohort-study-using-the-uk-clinical-practice-research-datalink
#8
Germano L C Ferreira, Cinzia Marano, Laurence De Moerlooze, Adrienne Guignard, Yang Feng, Yassine El Hahi, Tjeerd van Staa
We assessed the incidence and prevalence of hepatitis B (Hep B) in patients with or without diabetes mellitus using the UK Clinical Practice Research Datalink. This was a retrospective, observational study of diabetic and non-diabetic cohorts aged 0-80 years using Clinical Practice Research Datalink (NCT02324218). Incidence rates (IR) for each cohort were calculated. Crude and adjusted (Poisson Regression) IR ratios (IRR) were estimated with 95% confidence intervals (CI) to compare the cohorts. Hep B prevalence stratified by age, and hospitalisation related to Hep B were also calculated...
December 8, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29215360/viruses-in-the-environment-presence-and-diversity-of-bacteriophage-and-enteric-virus-populations-in-the-umhlangane-river-durban-south-africa
#9
Veronna Marie, Johnson Lin
Due to the continued persistence of waterborne viral-associated infections, the presence of enteric viruses is a concern. Notwithstanding the health implications, viral diversity and abundance is an indicator of water quality declination in the environment. The aim of this study was to evaluate the presence of viruses (bacteriophage and enteric viruses) in a highly polluted, anthropogenic-influenced river system over a 6-month period at five sampling points. Cytopathic-based tissue culture assays revealed that the isolated viruses were infectious when tested on Hep-G2, HEK293 and Vero cells...
October 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/29204090/autoantibodies-c-reactive-protein-erythrocyte-sedimentation-rate-and-serum-cytokine-profiling-in-monitoring-of-early-treatment
#10
Edyta Brzustewicz, Izabella Henc, Agnieszka Daca, Maria Szarecka, Malgorzata Sochocka-Bykowska, Jacek Witkowski, Ewa Bryl
Introduction: Currently used clinical scale and laboratory markers to monitor patients with early rheumatoid arthritis (RA) seem to be not sufficient. It has been demonstrated that disease- related cytokines may be elevated very early in RA development and cytokines are considered as the biomarkers potentially useful for RA monitoring. Material and methods: The group of patients with undifferentiated arthritis (UA) developing RA (UA→RA) was identified from a total of 121 people with arthralgia...
2017: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/29194939/management-of-drug-interactions-with-direct-acting-antivirals-in-dutch-hiv-hepatitis-c-virus-coinfected-patients-adequate-but-not-perfect
#11
E J Smolders, C Smit, Ctmm de Kanter, Asm Dofferhoff, J E Arends, K Brinkman, B Rijnders, M van der Valk, P Reiss, D M Burger
OBJECTIVES: Direct-acting antivirals (DAAs) for treatment of chronic hepatitis C virus (HCV) infection can cause drug-drug interactions (DDIs) with combination antiretroviral therapy (cART) and non-cART co-medication. We mapped how physicians manage DDIs between DAAs and co-medication and analysed treatment outcomes. METHODS: Data were prospectively collected as part of the ATHENA HIV observational cohort and retrospectively analysed. Dutch patients with HIV/HCV coinfection who initiated treatment with DAAs between January 2015 and May 2016 were included...
December 1, 2017: HIV Medicine
https://www.readbyqxmd.com/read/29188757/folate-receptor-targeted-multimodal-fluorescence-mesosilica-nanoparticles-for-imaging-delivery-palladium-complex-and-in-vitro-g-quadruplex-dna-interaction
#12
Marziyeh Poshteh Shirani, Behzad Rezaei, Taghi Khayamian, Mohammad Dinari, Kazem Karami, Zohreh Mehri-Lighvan, Fazileh Hosseini Shamili, Mohammd Ramezani, Mona Alibolandi
New folic acid-conjugated mesoporous silica nanoparticles were synthesized. The effect of calcination at 400°C on the fluorescence characteristics of mesoporous silica nanoparticles was studied in this work. The formed carbon dots (CDs) from calcination was used as the source of fluorescence. 3-Aminopropyltriethoxysilane was then used to amine-functionalized the fluorescent surface of mesoporous silica nanoparticles. The amine fluorescence mesoporous silica nanoparticles (amine-FMSNs) were coupled with folic acid (FA) as the target ligand (FA-amine-FMSNs)...
November 30, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29184095/exteroceptive-expectations-modulate-interoceptive-processing-repetition-suppression-effects-for-visual-and-heartbeat-evoked-potentials
#13
Amanda C Marshall, Antje Gentsch, Valentina Jelinčić, Simone Schütz-Bosbach
Interoception refers to the signaling of internal bodily commands. Here, we explore repetition suppression of intero- and exteroceptive neural markers to test whether the perception and predictability of exteroceptive stimulus material affects their expression. Participants completed a repetition suppression paradigm in which angry or neutral facial expressions repeated or alternated. Participants received either an implicit (experiment 1) or explicit (experiment 2) cue enabling the formation of expectations regarding the upcoming facial expression...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29165831/external-validation-of-the-ita-li-ca-prognostic-system-for-patients-with-hepatocellular-carcinoma-a-multicenter-cohort-study-hep-17-0903
#14
Mauro Borzio, Elena Dionigi, Angelo Rossini, Massimo Marignani, Rodolfo Sacco, Ilario De Sio, Emanuela Bertolini, Giampiero Francica, Anna Giacomin, Giancarlo Parisi, Susanna Vicari, Anna Toldi, Andrea Salmi, Sergio Boccia, Mario Mitra, Fabio Fornari
Several staging systems for HCC have been developed. BCLC is considered the best in predicting survival, although limitations have emerged. Recently the Italian-Liver-Cancer (ITA.LI.CA) prognostic system, integrating the ITA.LI.CA tumor-staging (stages 0, A, B1-3; C) with Child-Pugh score, ECOG-PST, and AFP with a strong ability to predict survival was proposed. Aim of our study was to provide an external validation of the ITA.LI.CA system in an independent real-life occidental cohort of HCCs. METHODS: From September 2008 to April 2016, 1508 cirrhotics with incident HCC were consecutively enrolled in 27 Italian institutions (EpaHCC multi-institutional cohort)...
November 22, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29159945/cantharidic-acid-induces-apoptosis-through-the-p38-mapk-signaling-pathway-in-human-hepatocellular-carcinoma
#15
I-Che Feng, Ming-Ju Hsieh, Pei-Ni Chen, Yi-Hsien Hsieh, Hsin-Yu Ho, Shun-Fa Yang, Chao-Bin Yeh
Cantharidin analogs exhibit anticancer activities, including apoptosis. However, the molecular mechanisms underlying the effects of cantharidic acid (CA), a cantharidin analog, on apoptosis in hepatocellular carcinoma (HCC) cells are unclear. Thus, in this study, we evaluated the anticancer activities of CA by investigating its ability to trigger apoptosis in SK-Hep-1 cells. Our data demonstrated that CA effectively inhibited the proliferation of SK-Hep-1 cells in a dose-dependent manner. Furthermore, CA effectively triggered cell cycle arrest and induced apoptosis, as determined by flow cytometric analysis...
November 21, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29143045/long-wavelength-fluorescent-boronate-probes-for-the-detection-and-intracellular-imaging-of-peroxynitrite
#16
Adam C Sedgwick, Hai-Hao Han, Jordan E Gardiner, Steven D Bull, Xiao-Peng He, Tony D James
Two boronate fluorescent probes have been developed for the detection of peroxynitrite (TCFB1 and TCFB2). TCFB1 was shown to have a low sensitvity towards peroxynitrite and have a poor solubility in aqueous solution whereas TCFB2 demonstrated high sensitivity towards peroxynitrite and mitochondria localisation with the ability to detect exogenous and endogenous peroxynitrite in live cells (Hep-G2, RAW 264.7, HeLa and A459).
November 16, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29142410/methanolic-extract-of-costus-pictus-d-don-induces-cytotoxicity-in-liver-hepatocellular-carcinoma-cells-mediated-by-histone-deacetylase-inhibition
#17
P V Neethu, K Suthindhiran, M A Jayasri
Background: Leaves of Costus pictus D. Don, (insulin plant) are used as dietary supplement for the treatment of diabetes. Objective: The antidiabetic activity of this plant is well documented, but its activity on different cell types and mechanism remains unknown. Thus, the present study evaluates the cytotoxicity of C. pictus methanolic extract (CPME) against various cancer and normal cells. Materials and Methods: Dried leaves of C. pictus were extracted using methanol and were subjected to histone deacetylase (HDAC) inhibition and toxicity studies...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29133054/synthesis-crystal-structure-and-biological-evaluation-of-a-new-dasatinib-copper-ii-complex-as-telomerase-inhibitor
#18
Qi-Pin Qin, Ting Meng, Ming-Xiong Tan, Yan-Cheng Liu, Xu-Jian Luo, Bi-Qun Zou, Hong Liang
A new copper(II) complex of dasatinib (DAS) was synthesized and characterized via ESI-MS, UV-Vis, IR, single-crystal X-ray diffraction analysis, (1)H and (13)C NMR spectroscopy, and elemental analysis. The composition of the new complex (1) was found to be [Cu(DAS + H)(NO3)2(H2O)]NO3·(H2O)·(CH3OH). Through MTT assay, it was found that 1 had high cytotoxicity towards A549, HeLa, BEL-7402, Hep-G2, NCI-H460, and MGC80-3 tumor cell lines, with IC50 values in 4.04-13.04 μM. The Hep-G2 cells were the most sensitive to 1...
October 25, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29126737/synthesis-and-in%C3%A2-vitro-biological-evaluation-of-three-4-4-methoxyphenyl-2-2-6-2%C3%A2-terpyridine-iridium-iii-complexes-as-new-telomerase-inhibitors
#19
Qi-Pin Qin, Ting Meng, Ming-Xiong Tan, Yan-Cheng Liu, Xu-Jian Luo, Bi-Qun Zou, Hong Liang
There iridium(III) complexes, [Ir(3-MeO-Phtpy)Cl3] (1), [Ir(2-MeO-Phtpy)Cl3] (2) and [Ir(4-MeO-Phtpy)Cl3] (3) with 4'-(3-methoxyphenyl)-2,2':6',2″-terpyridine (3-MeO-Phtpy), 4'-(2-methoxyphenyl)-2,2':6',2″-terpyridine (2-MeO-Phtpy) and 4'-(4-methoxyphenyl)-2,2':6',2″-terpyridine (4-MeO-Phtpy) as ligands, respectively, were synthesized and evaluated for their antiproliferative activities. In these complexes, the iridium(III) center adopts a six-coordinate distorted octahedral geometry. Among them, complex 1 exhibited the most potent activity, with IC50 values of 3...
October 16, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29108284/overexpression-of-mir-26b-decreases-the-cisplatin-resistance-in-laryngeal-cancer-by-targeting-atf2
#20
Linli Tian, Jiarui Zhang, Xiuxia Ren, Xinyu Liu, Wei Gao, Chen Zhang, Yanan Sun, Ming Liu
Cisplatin is a common used chemotherapeutic drug for the treatment of laryngeal cancer. However, drug-resistance is a major obstacle in platinum-based chemotherapy for laryngeal cancer. Recent studies have demonstrated that dysregulation of microRNAs (miRNAs) is responsible for chemoresistance in multiple cancers including laryngeal cancer, but the potential mechanisms are required to be explored. In the present study, we constantly exposed the laryngeal cancer cell line Hep-2 with cisplatin to establish a cisplatin-resistant laryngeal cancer cell model (Hep-2/R)...
October 3, 2017: Oncotarget
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