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Xianming Zhang

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https://www.readbyqxmd.com/read/27885699/strains-of-group-b-streptococci-from-septic-patients-induce-platelet-activation-via-toll-like-receptor-2
#1
Xiaoyan Liu, Hongyun Liu, Xianming Luo, Ping Zhang, Yanmin Gao, Shuangfeng Xie, Kang Xu, Jianxing Chang, Liping Ma
Group B Streptococcus (GBS) causes life-threatening bacterial sepsis, especially in newborns and pregnant women. Patients suffering from sepsis often display low platelet counts, characterized by thrombocytopenia, because of platelet activation. In the present study, the roles of six GBS strains from septic patients in platelet aggregation, as well as the underlying mechanisms, were investigated. Incubation of platelets with three of the strains induced platelet aggregation, increased the secretion of cellular adhesin molecule CD62P and activation of GPIIb/IIIa...
November 25, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27832642/cell-derived-microparticles-in-patients-with-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis
#2
Sheyu Li, Jia Wei, Chenghui Zhang, Xiaodan Li, Wentong Meng, Xianming Mo, Qianying Zhang, Qilin Liu, Kaiyun Ren, Rong Du, Haoming Tian, Jianwei Li
BACKGROUND/AIMS: The aim of this study was to assess the association between circulating cell-derived microparticles (MPs) and type 2 diabetes mellitus (T2DM). METHODS: A literature search was performed systematically in PubMed and Embase to identify available case-control or cross-sectional studies that compared different types of cell-derived MPs in patients with T2DM and non-diabetic controls. Pooled standardized mean differences (SMDs) of each MP type were pooled using meta-analysis...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27815824/mir-10a-inhibits-cell-proliferation-and-promotes-cell-apoptosis-by-targeting-bcl6-in-diffuse-large-b-cell-lymphoma
#3
Qian Fan, Xiangrui Meng, Hongwei Liang, Huilai Zhang, Xianming Liu, Lanfang Li, Wei Li, Wu Sun, Haiyang Zhang, Ke Zen, Chen-Yu Zhang, Zhen Zhou, Xi Chen, Yi Ba
The BCL6 (B-Cell Lymphoma 6) gene is a proto-oncogene that is often expressed in diffuse large B-cell lymphomas (DLBCLs). BCL6 loss of function can kill DLBCL cells, demonstrating that BCL6 is necessary for the survival of DLBCL cells and could be a therapeutic target. In this study, we found that BCL6 protein levels were consistently upregulated in DLBCL tissues, whereas its mRNA levels varied randomly in tissues, suggesting that a post-transcriptional mechanism was involved in BCL6 regulation. We used bioinformatics analysis to search for miRNAs, which potentially target BCL6, and identified specific targeting sites for miR-10a in the 3'-untranslated region (3'-UTR) of BCL6...
November 4, 2016: Protein & Cell
https://www.readbyqxmd.com/read/27811182/leveraging-unique-structural-characteristics-of-wnk-kinases-to-achieve-therapeutic-inhibition
#4
REVIEW
Jinwei Zhang, Xianming Deng, Kristopher T Kahle
The with-no-lysine (K) WNK kinases are master regulators of the Na(+)-(K(+))-Cl(-) cotransporters, including the renal-specific NCC and NKCC2 cotransporters. The discovery of WNK463, an orally bioavailable pan-WNK kinase inhibitor that exploits unique structural properties of the WNK catalytic domain to achieve high affinity and kinase selectivity, illustrates a strategy of leveraging distinct kinase features to develop specific inhibitors and validates the genetic predictions of the in vivo pharmacology of WNK inhibition...
October 18, 2016: Science Signaling
https://www.readbyqxmd.com/read/27775552/transcription-factor-etv1-is-essential-for-rapid-conduction-in-the-heart
#5
Akshay Shekhar, Xianming Lin, Fang-Yu Liu, Jie Zhang, Huan Mo, Lisa Bastarache, Joshua C Denny, Nancy J Cox, Mario Delmar, Dan M Roden, Glenn I Fishman, David S Park
Rapid impulse propagation in the heart is a defining property of pectinated atrial myocardium (PAM) and the ventricular conduction system (VCS) and is essential for maintaining normal cardiac rhythm and optimal cardiac output. Conduction defects in these tissues produce a disproportionate burden of arrhythmic disease and are major predictors of mortality in heart failure patients. Despite the clinical importance, little is known about the gene regulatory network that dictates the fast conduction phenotype. Here, we have used signal transduction and transcriptional profiling screens to identify a genetic pathway that converges on the NRG1-responsive transcription factor ETV1 as a critical regulator of fast conduction physiology for PAM and VCS cardiomyocytes...
December 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27775498/virulence-and-molecular-characterization-of-experimental-isolates-of-the-stripe-rust-pathogen-puccinia-striiformis-indicate-somatic-recombination
#6
Yu Lei, Meinan Wang, Anmin Wan, Chongjing Xia, Deven R See, Min Zhang, Xianming Chen
Puccinia striiformis causes stripe rust on wheat, barley, and grasses. Natural population studies have indicated that somatic recombination plays a possible role in P. striiformis variation. To determine if somatic recombination can occur, susceptible wheat or barley plants were inoculated with mixed urediniospores of paired isolates of P. striiformis. Progeny isolates were selected by passing through a series of inoculations of wheat or barley genotypes. Potential recombinant isolates were compared with the parental isolates on the set of 18 wheat and/or 12 barley genotypes that are used to differentiate races of P...
October 24, 2016: Phytopathology
https://www.readbyqxmd.com/read/27774127/discovery-of-a-series-of-5-11-dihydro-6h-benzo-e-pyrimido-5-4-b-1-4-diazepin-6-ones-as-selective-pi3k-%C3%AE-%C3%AE-inhibitors
#7
Fleur M Ferguson, Jing Ni, Tinghu Zhang, Bethany Tesar, Taebo Sim, Nam Doo Kim, Xianming Deng, Jennifer R Brown, Jean J Zhao, Nathanael S Gray
Dual inhibition of PI3K-δ and PI3K-γ is an established therapeutic strategy for treatment of hematological malignancies. Reported molecules targeting PI3K-δ/γ selectively are chemically similar and based upon isoquinolin-1(2H)-one or quinazolin-4(3H)-one scaffolds. Here we report a chemically distinct series of potent, selective PI3K-δ/γ inhibitors based on a 5,11-dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one scaffold with comparable biochemical potency and cellular effects on PI3K signaling. We envisage these molecules will provide useful leads for development of next-generation PI3K-δ/γ targeting therapeutics...
October 13, 2016: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27758886/targeting-brk-positive-breast-cancers-with-small-molecule-kinase-inhibitors
#8
Jie Jiang, Fu Gui, Zhixiang He, Li Li, Yunzhan Li, Shunying Li, Xinrui Wu, Zhou Deng, Xihuan Sun, Xiaoxing Huang, Wei Huang, Shang Han, Ting Zhang, Zheng Wang, Bo Jiao, Siyang Song, Hong-Rui Wang, Lanfen Chen, Dawang Zhou, Qiang Liu, Ruibao Ren, Jianming Zhang, Xianming Deng
Approximately 80% of breast cancers overexpress the kinase BRK/PTK6, which has various oncogenic roles in breast cancer cell proliferation, survival and migration. However, BRK inhibitors have yet to be explored as possible therapeutic tools. In this study, we employed a parallel compound-centric approach to discover a new class of pharmaceutical agents, exemplified by XMU-MP-2, as potent and selective BRK inhibitors. XMU-MP-2 exhibited target-specific inhibition of BRK kinase activity and disrupted signaling pathways mediated by this activity, thereby reducing proliferation in BRK-positive breast cancer cells...
October 10, 2016: Cancer Research
https://www.readbyqxmd.com/read/27756825/the-association-between-dietary-vitamin-a-intake-and-pancreatic-cancer-risk-a-meta-analysis-of-11-studies
#9
Tao Zhang, Hongqiang Chen, Shiyong Qin, Minghai Wang, Xianming Wang, Xin Zhang, Fei Liu, Shuguang Zhang
OBJECTIVE: Whether dietary vitamin A intake could reduce pancreatic cancer risk is still conflicting. We therefore conducted a meta-analysis to summarize the evidence from epidemiological studies. METHODS: We searched the databases of PubMed and Web of Knowledge up to July 2016. Random model was used to combine study-specific relative risks (RR) and 95% confidence interval (95% CI). Publication bias was assessed by Egger regression asymmetry test and Begg's funnel plot...
October 18, 2016: Bioscience Reports
https://www.readbyqxmd.com/read/27746775/inchi2-plasmids-are-predominant-in-antibiotic-resistant-salmonella-isolates
#10
Wenyao Chen, Tingzi Fang, Xiujuan Zhou, Daofeng Zhang, Xianming Shi, Chunlei Shi
The wide usage of antibiotics contributes to the increase in the prevalence of antibiotic-resistant Salmonella. Plasmids play a critical role in horizontal transfer of antibiotic resistance markers in Salmonella. This study aimed to screen and characterize plasmid profiles responsible for antibiotic resistance in Salmonella and ultimately to clarify the molecular mechanism of transferable plasmid-mediated antibiotic resistance. A total of 226 Salmonella isolates were examined for antimicrobial susceptibility by a disk diffusion method...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27715057/structure-determinants-of-lagunamide-a-for-anticancer-activity-and-its-molecular-mechanism-of-mitochondrial-apoptosis
#11
Xiaoxing Huang, Wei Huang, Li Li, Xihuan Sun, Siyang Song, Qingyan Xu, Lianru Zhang, Bang-Guo Wei, Xianming Deng
Marine natural products are served as attractive source of anticancer therapeutics, with the great success of "first-in-class" drugs, such as Yondelis, Halaven, and Brentuximab vendotin. Lagunamides A-C from marine cyanobacterium, Lyngbya majuscula, exhibit exquisite growth inhibitory activities against cancer cells. In this study, we have systematically investigated the structure-activity relationships (SAR) of a concise collection of lagunamide A and its analogs constructed by total chemical synthesis against a broad panel of cancer cells derived from various tissues or organs, including A549, HeLa, U2OS, HepG2, BEL-7404, BGC-823, HCT116, MCR-7, HL-60, and A375...
October 7, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27667394/diosgenin%C3%A2-induced-autophagy-and-apoptosis-in-a-human-prostate-cancer-cell-line
#12
Chao Nie, Jie Zhou, Xiaokang Qin, Xianming Shi, Qingqi Zeng, Jia Liu, Shihai Yan, Lei Zhang
Diosgenin, a plant steroid compound from Dioscorea nipponica, is an anti-inflammatory, antidiabetic, antitumor, vasodilatory compound, which also reduces blood lipid content and protects against ischemia‑induced neuronal damage. However, a limited number of studies have been performed on the antitumor effect of diosgenin on prostate cancer, the underlying mechanism of which remains to be fully elucidated. In the present study, the effect and underlying mechanism of diosgenin on DU145 human prostate cancer cells was investigated...
September 19, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27626680/loss-of-znf32-augments-the-regeneration-of-nervous-lateral-line-system-through-negative-regulation-of-sox2-transcription
#13
Yuyan Wei, Kai Li, Shaohua Yao, Junping Gao, Jun Li, Yanna Shang, Jie Zhang, Le Zhang, Yanyan Li, Xianming Mo, Wentong Meng, Rong Xiang, Jiankun Hu, Ping Lin, Yuquan Wei
Human zinc finger protein 32 (ZNF32) is a Cys2-His2 zinc-finger transcription factor that plays an important role in cell fate, yet much of its function remains unknown. Here, we reveal that the zebrafish ZNF32 homologue zfZNF32 is expressed in the nervous system, particularly in the lateral line system. ZfZNF32 knock-out zebrafish (zfZNF-/-) were generated using the CRISPR-associated protein 9 system. We found that the regenerative capacity of the lateral line system was increased in zfZNF-/- upon hair cell damage compared with the wild type...
September 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27561462/identification-of-staphylococcus-argenteus-in-eastern-china-based-on-a-nonribosomal-peptide-synthetase-nrps-gene
#14
Dao-Feng Zhang, Xuebin Xu, Qifa Song, Yalong Bai, Yi Zhang, Minghui Song, Chunlei Shi, Xianming Shi
AIM: To investigate whether the Staphylococcus argenteus is present in Eastern China and to verify the utility of a new screening process. MATERIALS & METHODS: Phenotype observation, PCR assay targeting a hypothetical nonribosomal peptide synthetase (NRPS) gene, phylogenetic analysis of rpoB and multilocus sequence typing were used to screen and identify strains of S. argenteus from 839 presumptive S. aureus isolates. RESULTS: Eighty-nine (89/839, 10...
September 2016: Future Microbiology
https://www.readbyqxmd.com/read/27535619/pharmacological-targeting-of-kinases-mst1-and-mst2-augments-tissue-repair-and-regeneration
#15
Fuqin Fan, Zhixiang He, Lu-Lu Kong, Qinghua Chen, Quan Yuan, Shihao Zhang, Jinjin Ye, Hao Liu, Xiufeng Sun, Jing Geng, Lunzhi Yuan, Lixin Hong, Chen Xiao, Weiji Zhang, Xihuan Sun, Yunzhan Li, Ping Wang, Lihong Huang, Xinrui Wu, Zhiliang Ji, Qiao Wu, Ning-Shao Xia, Nathanael S Gray, Lanfen Chen, Cai-Hong Yun, Xianming Deng, Dawang Zhou
Tissue repair and regenerative medicine address the important medical needs to replace damaged tissue with functional tissue. Most regenerative medicine strategies have focused on delivering biomaterials and cells, yet there is the untapped potential for drug-induced regeneration with good specificity and safety profiles. The Hippo pathway is a key regulator of organ size and regeneration by inhibiting cell proliferation and promoting apoptosis. Kinases MST1 and MST2 (MST1/2), the mammalian Hippo orthologs, are central components of this pathway and are, therefore, strong target candidates for pharmacologically induced tissue regeneration...
August 17, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27502735/pd-nanoparticles-decorated-n-doped-graphene-quantum-dots-n-doped-carbon-hollow-nanospheres-with-high-electrochemical-sensing-performance-in-cancer-detection
#16
Jiangbo Xi, Chuyi Xie, Yan Zhang, Lu Wang, Jian Xiao, Xianming Duan, Jinghua Ren, Fei Xiao, Shuai Wang
The development of carbon based hollow-structured nanospheres (HNSs) materials has stimulated growing interest due to their controllable structure, high specific surface area, large void space, enhanced mass transport, and good biocompatibility. The incorporation of functional nanomaterials into their core and/or shell opens new horizons in designing functionalized HNSs for a wider spectrum of promising applications. In this work, we report a new type of functionalized HNSs based on Pd nanoparticles (NPs) decorated double shell structured N-doped graphene quantum dots (NGQDs)@N-doped carbon (NC) HNSs, with ultrafine Pd NPs and "nanozyme" NGQDs as dual signal-amplifying nanoprobes, and explore their promising application as a highly efficient electrocatalyst in electrochemical sensing of a newly emerging biomarker, i...
August 31, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27478440/factors-in-gestational-diabetes-mellitus-predicting-the-needs-for-insulin-therapy
#17
Ya Zhang, Jiashen Shao, Feifei Li, Xianming Xu
Objective. To identify factors predicting the need for insulin therapy in pregnancies complicated by gestational diabetes mellitus (GDM). Methods. A total of 1352 patients with GDM diagnosed by the 75-g/2-h oral glucose tolerance test (OGTT) were enrolled in this study. Univariate and multivariate analysis were performed; receiver operating characteristics (ROC) were also drawn. Results. There was a significant difference in factors such as maternal age, pregestational BMI, first visit SBP, first visit DBP, FBG of first visit, FBG at time of OGTT, 75-g OGTT glucose value (fasting, after 1 h and 2 h), and serum HbA1c level at diagnosis between patients with insulin therapy and patients with medical nutrition therapy (MNT) alone...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27449157/four-new-tirucallane-triterpenoids-from-the-fruits-of-melia-azedarach-and-their-cytotoxic-activities
#18
Fang Zhou, Xin-Hua Ma, Zhi-Jun Li, Wei Li, Wei-Min Zheng, Zhi-Biao Wang, Xian-Ming Zeng, Kai-Hui Sun, Yong-Hong Zhang
Four new tirucallane triterpenoids, (21S,23R,24R)-21,23-epoxy-21,24-dihydroxy-25-methoxytirucall-7-en-3-one (2), (3S,21S,23R,24S)-21,23-epoxy-21,25-dimethoxytirucall-7-ene-3,24-diol (8), (21S,23R,24R)-21,23-epoxy-24-hydroxy-21-methoxytirucalla-7,25-dien-3-one (11), and (21S,23R,24R)-21,23-epoxy-21,24-dihydroxytirucalla-7,25-dien-3-one (12), along with 16 known analogues, 1, 3 - 7, 9 - 10, and 13 - 20, were isolated from the fruits of Melia azedarach. Their structures were elucidated by spectroscopic methods including 1D- and 2D-NMR techniques and mass spectrometry...
July 23, 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/27413370/vitamin-d-status-is-negatively-correlated-with-insulin-resistance-in-chinese-type-2-diabetes
#19
Jie Zhang, Jianhong Ye, Gang Guo, Zhenhao Lan, Xing Li, Zhiming Pan, Xianming Rao, Zongji Zheng, Fangtao Luo, Luping Lin, Zhihua Lin, Yaoming Xue
Objectives. Vitamin D deficiency plays a role in insulin resistance and the pathogenesis of type 2 diabetes mellitus. Little information is available about the association between vitamin D status and insulin resistance in the Chinese population. Currently, vitamin D status is evaluated by the concentrations of serum 25-hydroxyvitamin D [25(OH)D]. This study explores the relationship between insulin resistance and serum 25-hydroxyvitamin D concentrations in Chinese patients with type 2 diabetes mellitus. Subjects and Methods...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27397505/a-landscape-of-pharmacogenomic-interactions-in-cancer
#20
Francesco Iorio, Theo A Knijnenburg, Daniel J Vis, Graham R Bignell, Michael P Menden, Michael Schubert, Nanne Aben, Emanuel Gonçalves, Syd Barthorpe, Howard Lightfoot, Thomas Cokelaer, Patricia Greninger, Ewald van Dyk, Han Chang, Heshani de Silva, Holger Heyn, Xianming Deng, Regina K Egan, Qingsong Liu, Tatiana Mironenko, Xeni Mitropoulos, Laura Richardson, Jinhua Wang, Tinghu Zhang, Sebastian Moran, Sergi Sayols, Maryam Soleimani, David Tamborero, Nuria Lopez-Bigas, Petra Ross-Macdonald, Manel Esteller, Nathanael S Gray, Daniel A Haber, Michael R Stratton, Cyril H Benes, Lodewyk F A Wessels, Julio Saez-Rodriguez, Ultan McDermott, Mathew J Garnett
Systematic studies of cancer genomes have provided unprecedented insights into the molecular nature of cancer. Using this information to guide the development and application of therapies in the clinic is challenging. Here, we report how cancer-driven alterations identified in 11,289 tumors from 29 tissues (integrating somatic mutations, copy number alterations, DNA methylation, and gene expression) can be mapped onto 1,001 molecularly annotated human cancer cell lines and correlated with sensitivity to 265 drugs...
July 28, 2016: Cell
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