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Pei Y Liu, Nicholas Sokolowski, Su T Guo, Faraz Siddiqi, Bernard Atmadibrata, Thomas J Telfer, Yuting Sun, Lihong Zhang, Denise Yu, Joshua Mccarroll, Bing Liu, Rui H Yang, Xiang Y Guo, Andrew E Tee, Ken Itoh, Jenny Wang, Maria Kavallaris, Michelle Haber, Murray D Norris, Belamy B Cheung, Jennifer A Byrne, David S Ziegler, Glenn M Marshall, Marcel E Dinger, Rachel Codd, Xu D Zhang, Tao Liu
BET bromodomain inhibitors are very promising novel anticancer agents, however, single therapy does not cause tumor regression in mice, suggesting the need for combination therapy. After screening a library of 2697 small molecule compounds, we found that two classes of compounds, the quinone-containing compounds such as nanaomycin and anti-microtubule drugs such as vincristine, exerted the best synergistic anticancer effects with the BET bromodomain inhibitor JQ1 in neuroblastoma cells. Mechanistically, the quinone-containing compound nanaomycin induced neuroblastoma cell death but also activated the Nrf2-antioxidant signaling pathway, and the BET bromodomain proteins BRD3 and BRD4 formed a protein complex with Nrf2...
October 13, 2016: Oncotarget
Bruno L Oliveira, Zijian Guo, Omar Boutureira, Ana Guerreiro, Gonzalo Jiménez-Osés, Gonçalo J L Bernardes
The unstrained S-allyl cysteine amino acid was site-specifically installed on apoptosis protein biomarkers and was further used as a chemical handle and ligation partner for 1,2,4,5-tetrazines by means of an inverse-electron-demand Diels-Alder reaction. We demonstrate the utility of this minimal handle for the efficient labeling of apoptotic cells using a fluorogenic tetrazine dye in a pre-targeting approach. The small size, easy chemical installation, and selective reactivity of the S-allyl handle towards tetrazines should be readily extendable to other proteins and biomolecules, which could facilitate their labeling within live cells...
October 20, 2016: Angewandte Chemie
Jian-Zhong Guo, Austin R Graves, Wendy W Guo, Jihong Zheng, Allen Lee, Juan Rodríguez-González, Nuo Li, John J Macklin, James W Phillips, Brett D Mensh, Kristin M Branson, Adam W Hantman
No abstract text is available yet for this article.
October 20, 2016: ELife
Attilio Pingitore, Edward S Chambers, Thomas Hill, Inmaculada Ruz Maldonado, Bo Liu, Gavin Bewick, Douglas J Morrison, Tom Preston, Gareth A Wallis, Catriona Tedford, Ramón Castañera González, Guo Cai Huang, Pratik Choudhary, Gary Frost, Shanta J Persaud
AIMS: Diet-derived short chain fatty acids (SCFAs) improve glucose homeostasis in vivo, but the role of individual SCFAs and their mechanisms of action have not been defined. This study evaluated the effects of increasing colonic delivery of the SCFA propionate on β-cell function in humans and the direct effects of propionate on isolated human islets in vitro. MATERIALS AND METHODS: For 24 weeks human subjects ingested an inulin-propionate ester that delivers propionate to the colon...
October 20, 2016: Diabetes, Obesity & Metabolism
L Chen, G Guo, X J Yuan, J Zhang, A Y Wen, X H Sun, T Shao
The objective of this study was to determine the effect of ensiling different ratios of whole crop oat to lucerne on fermentation quality, aerobic stability and in vitro digestibility of silage on the Tibetan plateau. Four experimental treatments were produced varying in the ratio of forages on a fresh matter (FM) basis: 1) 100% oat (control, dry matter (DM) content: 317 g/kg), 2) 90% oat + 10% lucerne (OL10, DM content: 316 g/kg), 3) 80% oat+ 20% lucerne (OL20, DM content: 317 g/kg) and 4) 70% oat+ 30% lucerne (OL30, DM content: 318 g/kg)...
October 20, 2016: Journal of Animal Physiology and Animal Nutrition
Yicong Wu, Panagiotis Chandris, Peter W Winter, Edward Y Kim, Valentin Jaumouillé, Abhishek Kumar, Min Guo, Jacqueline M Leung, Corey Smith, Ivan Rey-Suarez, Huafeng Liu, Clare M Waterman, Kumaran S Ramamurthi, Patrick J La Riviere, Hari Shroff
Most fluorescence microscopes are inefficient, collecting only a small fraction of the emitted light at any instant. Besides wasting valuable signal, this inefficiency also reduces spatial resolution and causes imaging volumes to exhibit significant resolution anisotropy. We describe microscopic and computational techniques that address these problems by simultaneously capturing and subsequently fusing and deconvolving multiple specimen views. Unlike previous methods that serially capture multiple views, our approach improves spatial resolution without introducing any additional illumination dose or compromising temporal resolution relative to conventional imaging...
August 20, 2016: Optica
Charles Antzelevitch, Gan-Xin Yan, Michael J Ackerman, Martin Borggrefe, Domenico Corrado, Jihong Guo, Ihor Gussak, Can Hasdemir, Minoru Horie, Heikki Huikuri, Changsheng Ma, Hiroshi Morita, Gi-Byoung Nam, Frederic Sacher, Wataru Shimizu, Sami Viskin, Arthur A M Wilde
No abstract text is available yet for this article.
October 2016: Journal of Arrhythmia
J Zhang, P P Jin, K Fang, Q T Yi, M F Tang, C H Chen, J H Guo, M Gong
Objective: To explore the effects of varicocele on the expressions of inhibin B in rat testes and the relationship between expression of inhibin B and spermatogenesis dysfunction. Methods: Twenty specific-pathogen-free Sprague-Dawley (SD) male rats were randomly divided into two groups with random number table: 4-week control group (C4) and 4-week experimental group(V4). Experimental varicocele was created by partial ligation of left renal vein in the V4 group; vein isolation without ligation was performed in the C4 group...
September 27, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Kevin A McGoff, Xin Guo, Anastasia Deckard, Christina M Kelliher, Adam R Leman, Lauren J Francey, John B Hogenesch, Steven B Haase, John L Harer
We present a novel approach, the Local Edge Machine, for the inference of regulatory interactions directly from time-series gene expression data. We demonstrate its performance, robustness, and scalability on in silico datasets with varying behaviors, sizes, and degrees of complexity. Moreover, we demonstrate its ability to incorporate biological prior information and make informative predictions on a well-characterized in vivo system using data from budding yeast that have been synchronized in the cell cycle...
October 19, 2016: Genome Biology
Christina J Groß, Olaf Groß
The involvement of the NLRP3 inflammasome in inflammatory diseases has generated interest in identifying endogenous mechanisms that inhibit NLRP3. In this issue of Immunity, Guo et al. (2016) reveal bile acids as negative regulators of the NLRP3 inflammasome.
October 18, 2016: Immunity
Y Wang, J Guo, S Qiao, Q Li, J Yang, Q Jin, G Zhang
Porcine reproductive and respiratory syndrome virus (PRRSV) is an important swine pathogen, causing huge economic losses each year worldwide. Immunization with vaccines containing the glycoprotein 5 (GP5) of PRRSV is the main measure to induce neutralizing antibodies and control the disease. Here, we developed a GP5 protein-based ELISA for detecting antibodies against PRRSV. The overall yield of purified GP5 in E. coli flask culture was more than 45 mg/L cell culture. Western blot and IFA indicated that the GP5 protein was highly immunogenic...
September 1, 2016: Polish Journal of Veterinary Sciences
Cindy X Guo, Raiju J Babu, Joanna M Black, William R Bobier, Carly S Y Lam, Shuan Dai, Tina Y Gao, Robert F Hess, Michelle Jenkins, Yannan Jiang, Lionel Kowal, Varsha Parag, Jayshree South, Sandra Elfride Staffieri, Natalie Walker, Angela Wadham, Benjamin Thompson
BACKGROUND: Amblyopia is a common neurodevelopmental disorder of vision that is characterised by visual impairment in one eye and compromised binocular visual function. Existing evidence-based treatments for children include patching the nonamblyopic eye to encourage use of the amblyopic eye. Currently there are no widely accepted treatments available for adults with amblyopia. The aim of this trial is to assess the efficacy of a new binocular, videogame-based treatment for amblyopia in older children and adults...
October 18, 2016: Trials
Qian Li, Yun-Ai Su, Yu-Tao Xiang, Liang Shu, Xin Yu, Gabor S Ungvari, Stephen J Seiner, Helen F K Chiu, Yu-Ping Ning, Gao-Hua Wang, Ke-Rang Zhang, Tao Li, Li-Zhong Sun, Jian-Guo Shi, Xian-Sheng Chen, Qi-Yi Mei, Ke-Qing Li, Tian-Mei Si
OBJECTIVE: Little is known about electroconvulsive therapy (ECT) use in the treatment of schizophrenia in China. This study examined the frequency of ECT use, its trend between 2006 and 2012, and its independent demographic and clinical correlates in a nationwide survey in China. METHODS: A total of 5162 inpatients in 45 Chinese psychiatric hospitals/centers were interviewed (2696 in 2006 and 2466 in 2012). Patients' sociodemographic and clinical characteristics were recorded using a standardized protocol and data collection procedure...
October 7, 2016: Journal of ECT
Mario I Fernández, Stephen B Williams, Daniel L Willis, Rebecca S Slack, Rian J Dickstein, Sahil Parikh, Edmund Chiong, Arlene O Siefker-Radtke, Charles C Guo, Bogdan A Czerniak, David J McConkey, Jay B Shah, Louis L Pisters, H Barton Grossman, Colin P N Dinney, Ashish M Kamat
OBJECTIVE: To analyze survival in clinically localized, surgically resectable micropapillary bladder cancer patients undergoing radical cystectomy with and without neoadjuvant chemotherapy and develop risk strata based on outcome data. PATIENTS AND METHODS: A review of our database identified 103 patients with surgically resectable (≤cT4acN0cM0) micropapillary bladder cancer who underwent radical cystectomy. Survival estimates were calculated using Kaplan-Meier method and compared using log-rank tests...
October 18, 2016: BJU International
Wan Gao, Jia-Wen Hu, Fang Xu, Can-Jing Wei, Meng-Jiao Shi, Jun Zhao, Jia-Jia Wang, Bo Zhen, Teng-Fei Ji, Jian-Guo Xing, Zheng-Yi Gu, Fang Xu
Four new polyisoprenylated benzoylphloroglucinol derivatives, hyperscabrones J-M (1-4), were isolated from the air-dried aerial parts of Hypericum scabrum. Their structures were elucidated by spectroscopic methods and were subsequently confirmed by comparing with data of known compounds. The absolute configuration of the bicyclo[3.3.1]nonane-2,4,9-trione core was defined by the experimental and calculated electronic circular dichroism (ECD) spectra. The evaluation of their hepatoprotective activities against paracetamol-induced HepG2 cell damage showed that compounds 2 and 4 exhibited significant hepatoprotection at 10μM...
October 14, 2016: Fitoterapia
Ting Ni, Xiao-Yan Li, Na Lu, Teng An, Zhi-Ping Liu, Rong Fu, Wen-Cong Lv, Yi-Wei Zhang, Xiao-Jun Xu, R Grant Rowe, Yong-Shun Lin, Amanda Scherer, Tamar Feinberg, Xiao-Qi Zheng, Bao-An Chen, X Shirley Liu, Qing-Long Guo, Zhao-Qiu Wu, Stephen J Weiss
The zinc-finger transcription factor Snail1 is inappropriately expressed in breast cancer and associated with poor prognosis. While interrogating human databases, we uncovered marked decreases in relapse-free survival of breast cancer patients expressing high Snail1 levels in tandem with wild-type, but not mutant, p53. Using a Snail1 conditional knockout model of mouse breast cancer that maintains wild-type p53, we find that Snail1 plays an essential role in tumour progression by controlling the expansion and activity of tumour-initiating cells in preneoplastic glands and established tumours, whereas it is not required for normal mammary development...
October 17, 2016: Nature Cell Biology
Christopher J Benjamin, Kyle J Wright, Scott C Bolton, Seok-Hee Hyun, Kyle Krynski, Mahima Grover, Guimei Yu, Fei Guo, Tamara L Kinzer-Ursem, Wen Jiang, David H Thompson
We report the fabrication of transmission electron microscopy (TEM) grids bearing graphene oxide (GO) sheets that have been modified with N(α), N(α)-dicarboxymethyllysine (NTA) and deactivating agents to block non-selective binding between GO-NTA sheets and non-target proteins. The resulting GO-NTA-coated grids with these improved antifouling properties were then used to isolate His6-T7 bacteriophage and His6-GroEL directly from cell lysates. To demonstrate the utility and simplified workflow enabled by these grids, we performed cryo-electron microscopy (cryo-EM) of His6-GroEL obtained from clarified E...
October 17, 2016: Scientific Reports
Cornelia Habacher, Yanwu Guo, Richard Venz, Pooja Kumari, Anca Neagu, Dimos Gaidatzis, Eva B Harvald, Nils J Færgeman, Heinz Gut, Rafal Ciosk
Obesity is a global health issue, arousing interest in molecular mechanisms controlling fat. Transcriptional regulation of fat has received much attention, and key transcription factors involved in lipid metabolism, such as SBP-1/SREBP, LPD-2/C/EBP, and MDT-15, are conserved from nematodes to mammals. However, there is a growing awareness that lipid metabolism can also be controlled by post-transcriptional mechanisms. Here, we show that the Caenorhabditis elegans RNase, REGE-1, related to MCPIP1/Zc3h12a/Regnase-1, a key regulator of mammalian innate immunity, promotes accumulation of body fat...
October 7, 2016: Developmental Cell
Baijun Dong, Yujing Gao, Xunlei Kang, Hongchang Gao, Jin Zhang, Hua Guo, Mingjian J You, Wei Xue, Jinke Cheng, Yiran Huang
Metabolic shift toward aerobic glycolysis is a fundamental element contributing to the development and progression of clear cell renal cell carcinoma (ccRCC). We and others previously observed enhanced glycolysis and diminished tricarboxylic acid (TCA) cycle activity in ccRCC tissue. Here, by integrated gene expression and metabolomic analyses of 36 matched pairs of tumor and adjacent normal tissues, we showed that expression of Sentrin/SUMO-specific protease 1 (SENP1) is positively associated with glycolysis levels in ccRCC...
October 12, 2016: Oncotarget
Le Xiao, Jian-Wei Li, Shu-Guo Zheng
BACKGROUND: The reported protocol was difficult to expose the hepatic veins for laparoscopic anatomical hepatectomy of segments VII and VIII. We introduce a new, convenient, applicable approach with the hepatic vein exposed from the head side. METHODS: This study included 10 patients who underwent laparoscopic liver resection for HCC in the segments VII and VIII between October, 2014 and November, 2015. Their perioperative course and operative techniques were retrospectively evaluated...
October 14, 2016: Journal of Surgical Oncology
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