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https://www.readbyqxmd.com/read/29050400/metformin-reverses-trap1-mutation-associated-alterations-in-mitochondrial-function-in-parkinson-s-disease
#1
Julia C Fitzgerald, Alexander Zimprich, Daniel A Carvajal Berrio, Kevin M Schindler, Brigitte Maurer, Claudia Schulte, Christine Bus, Anne-Kathrin Hauser, Manuela Kübler, Rahel Lewin, Dheeraj Reddy Bobbili, Lisa M Schwarz, Evangelia Vartholomaiou, Kathrin Brockmann, Richard Wüst, Johannes Madlung, Alfred Nordheim, Olaf Riess, L Miguel Martins, Enrico Glaab, Patrick May, Katja Schenke-Layland, Didier Picard, Manu Sharma, Thomas Gasser, Rejko Krüger
The mitochondrial proteins TRAP1 and HTRA2 have previously been shown to be phosphorylated in the presence of the Parkinson's disease kinase PINK1 but the downstream signalling is unknown. HTRA2 and PINK1 loss of function causes parkinsonism in humans and animals. Here, we identified TRAP1 as an interactor of HTRA2 using an unbiased mass spectrometry approach. In our human cell models, TRAP1 overexpression is protective, rescuing HTRA2 and PINK1-associated mitochondrial dysfunction and suggesting that TRAP1 acts downstream of HTRA2 and PINK1...
September 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29050315/the-activation-of-src-family-kinases-and-focal-adhesion-kinase-with-the-loss-of-the-amplified-mutated-egfr-gene-contributes-to-the-resistance-to-afatinib-erlotinib-and-osimertinib-in-human-lung-cancer-cells
#2
Yuichi Murakami, Kahori Sonoda, Hideyuki Abe, Kosuke Watari, Daiki Kusakabe, Koichi Azuma, Akihiko Kawahara, Jun Akiba, Chitose Oneyama, Jonathan A Pachter, Kazuko Sakai, Kazuto Nishio, Michihiko Kuwano, Mayumi Ono
Second- and third-generation inhibitors of epidermal growth factor receptor (EGFR) tyrosine kinase activity (EGFR-TKIs) are improving the treatment of patients with non-small cell lung cancer. Here we established two sublines (BR1-8 and BR2-3) resistant to a second-generation inhibitor, afatinib, from the human lung cancer cell line HCC827 that harbors a mutation that activates the tyrosine kinase activity of EGFR. These afatinib-resistant sublines were resistant to first-generation EGFR-TKIs, gefitinib and erlotinib, and a third-generation EGFR-TKI, osimertinib...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050275/alisol-b-23-acetate-induces-autophagic-dependent-apoptosis-in-human-colon-cancer-cells-via-ros-generation-and-jnk-activation
#3
Yueliang Zhao, Edmund T S Li, Mingfu Wang
Alisol B 23-acetate (AB23A), a natural triterpenoid from the rhizome of Alisma orientale, a Chinese medicinal herb, has multiple physiological activities including anticancer. However, its effect on human colon cancer and the underlying mechanism are not clear. Here, we reported for the first time that AB23A induced cell cycle G1 phase arrest and apoptotic cell death in colon cancer cells. Autophagy also occurred in AB23A-treated HCT116 cells as evidenced by the accumulation of microtubule-associated protein 1 light chain 3 form II (LC3-II) and degradation of SQSTM1/p62...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050259/characterization-of-the-subcellular-localization-of-epstein-barr-virus-encoded-proteins-in-live-cells
#4
Mingsheng Cai, Zongmin Liao, Tao Chen, Ping Wang, Xingmei Zou, Yuanfang Wang, Zuo Xu, Si Jiang, Jinlu Huang, Daixiong Chen, Tao Peng, Gengde Hong, Meili Li
Epstein-Barr virus (EBV) is the pathogenic factor of numerous human tumors, yet certain of its encoded proteins have not been studied. As a first step for functional identification, we presented the construction of a library of expression constructs for most of the EBV encoded proteins and an explicit subcellular localization map of 81 proteins encoded by EBV in mammalian cells. Viral open reading frames were fused with enhanced yellow fluorescent protein (EYFP) tag in eukaryotic expression plasmid then expressed in COS-7 live cells, and protein localizations were observed by fluorescence microscopy...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050232/progressive-modulation-of-the-human-olfactory-bulb-transcriptome-during-alzheimer%C3%A2-s-disease-evolution-novel-insights-into-the-olfactory-signaling-across-proteinopathies
#5
Mercedes Lachen-Montes, María Victoria Zelaya, Víctor Segura, Joaquín Fernández-Irigoyen, Enrique Santamaría
Alzheimer´s disease (AD) is characterized by progressive dementia, initially presenting olfactory dysfunction. Despite the olfactory bulb (OB) is the first central structure of the olfactory pathway, we lack a complete molecular characterization of the transcriptional events that occurs in this olfactory area during AD progression. To address this gap in knowledge, we have assessed the genome-wide expression in postmortem OBs from subjects with varying degree of AD pathology. A stage-dependent deregulation of specific pathways was observed, revealing transmembrane transport, and neuroinflammation as part of the functional modules that are disrupted across AD grading...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050031/reading-first-coordinates-from-the%C3%A2-nephrogenic-zone-in-human-fetal%C3%A2-kidney
#6
Will W Minuth
While substantial information is available on organ anlage and the primary formation of nephrons, molecular mechanisms acting during the late development of the human kidney have received an astonishing lack of attention. In healthy newborn babies, nephrogenesis takes place unnoticed until birth. Upon delivery, morphogenetic activity in the nephrogenic zone decreases, and the stem cell niches aligned beyond the organ capsule vanish by an unknown signal. However, this signal also plays a key role in preterm and low birth weight babies...
October 19, 2017: Nephron
https://www.readbyqxmd.com/read/29049798/near-infrared-fluorescence-guided-thoracoscopic-surgical-intervention-for-postoperative-chylothorax
#7
Feng Yang, Jian Zhou, Hao Li, Fan Yang, Rongxin Xiao, Chongwei Chi, Jie Tian, Jun Wang
OBJECTIVES: Chylothorax is an infrequent but relatively serious complication after lung cancer surgery. Finding the leakage site and identifying the thoracic duct (TD) are the key points of surgical intervention for chylothorax. In this study, for the first time, we demonstrated near-infrared fluorescence imaging with indocyanine green (ICG) in video-assisted thoracoscopic surgery (VATS) intervention for chylothorax in humans. METHODS: This study included 4 patients diagnosed with chylothorax after lung cancer surgery who underwent VATS intervention; 0...
September 25, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049632/an-engineering-model-to-test-for-sensory-reweighting-in-non-human-primate-posture
#8
Lara A Thompson, Csilla Haburcakova, Adam D Goodworth, Richard F Lewis
Quantitative animal models are critically needed to provide proof-of-concept for the investigation of rehabilitative balance therapies (e.g., invasive vestibular prostheses) and treatment response prior to, or in conjunction with, human clinical trials. This paper describes a novel approach to modeling the non-human primate postural control system. Our observation that rhesus macaques and humans have even remotely similar postural control motivates the further application of the rhesus macaque as a model for studying the effects of vestibular dysfunction, as well as vestibular prosthesis-assisted states, on human postural control...
October 10, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29049388/an-inducible-mouse-model-of-podocin-mutation-related-nephrotic-syndrome
#9
Mansoureh Tabatabaeifar, Tanja Wlodkowski, Ivana Simic, Helga Denc, Geraldine Mollet, Stefanie Weber, John Julius Moyers, Barbara Brühl, Michael Joseph Randles, Rachel Lennon, Corinne Antignac, Franz Schaefer
Mutations in the NPHS2 gene, encoding podocin, cause hereditary nephrotic syndrome. The most common podocin mutation, R138Q, is associated with early disease onset and rapid progression to end-stage renal disease. Knock-in mice carrying a R140Q mutation, the mouse analogue of human R138Q, show developmental arrest of podocytes and lethal renal failure at neonatal age. Here we created a conditional podocin knock-in model named NPHS2 R140Q/-, using a tamoxifen-inducible Cre recombinase, which permits to study the effects of the mutation in postnatal life...
2017: PloS One
https://www.readbyqxmd.com/read/29049321/determination-and-production-of-antimicrobial-compounds-by-aspergillus-clavatonanicus-strain-mj31-an-endophytic-fungus-from-mirabilis-jalapa-l-using-uplc-esi-ms-ms-and-td-gc-ms-analysis
#10
Vineet Kumar Mishra, Ajit Kumar Passari, Preeti Chandra, Vincent Vineeth Leo, Brijesh Kumar, Sivakumar Uthandi, Sugitha Thankappan, Vijai Kumar Gupta, Bhim Pratap Singh
Endophytic fungi associated with medicinal plants are reported as potent producers of diverse classes of secondary metabolites. In the present study, an endophytic fungi, Aspergillus clavatonanicus strain MJ31, exhibiting significant antimicrobial activity was isolated from roots of Mirabilis jalapa L., was identified by sequencing three nuclear genes i.e. internal transcribed spacers ribosomal RNA (ITS rRNA), 28S ribosomal RNA (28S rRNA) and translation elongation factor 1- alpha (EF 1α). Ethyl acetate extract of strain MJ31displayed significant antimicrobial potential against Bacillus subtilis, followed by Micrococccus luteus and Staphylococcus aureus with minimum inhibitory concentrations (MIC) of 0...
2017: PloS One
https://www.readbyqxmd.com/read/29049276/hiv-testing-linkage-to-hiv-medical-care-and-interviews-for-partner-services-among-women-61-health-department-jurisdictions-united-states-puerto-rico-and-the-u-s-virgin-islands-2015
#11
Renee Stein, Songli Xu, Mariette Marano, Weston Williams, Qi Cheng, Adanze Eke, Andrea Moore, Guoshen Wang
Diagnoses of human immunodeficiency virus (HIV) infection among women declined 17% during 2011-2015, and a total of 7,498 women received a diagnosis of HIV infection in 2015 (1). Although black or African American (black) women accounted for only 12% of the U.S. female population, 60% of women with newly diagnosed HIV infection were black (1,2). By the end of 2014, an estimated 255,900 women were living with HIV infection (3), including approximately 12% who did not know they were infected; in addition, approximately 45% of women who had received a diagnosis had not achieved viral suppression (3)...
October 20, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29049070/noninfectious-fever-in-the-near-term-pregnant-rat-induces-fetal-brain-inflammation-a-model-for-the-consequences-of-epidural-associated-maternal-fever
#12
Scott Segal, Carlo Pancaro, Iwona Bonney, James E Marchand
BACKGROUND: Women laboring with epidural analgesia experience fever much more frequently than do women who chose other forms of analgesia, and maternal intrapartum fever is associated with numerous adverse consequences, including brain injury in the fetus. We developed a model of noninfectious inflammatory fever in the near-term pregnant rat to simulate the pathophysiology of epidural-associated fever and hypothesized that it would produce fetal brain inflammation. METHODS: Twenty-four pregnant Sprague-Dawley rats were studied at 20 days gestation (term: 22 days)...
October 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29049012/transcriptome-profiling-uncovers-potential-common-mechanisms-in-fetal-trisomies-18-and-21
#13
Marija Volk, Aleš Maver, Alenka Hodžić, Luca Lovrečić, Borut Peterlin
Human trisomies have recently been investigated using transcriptomics approaches to identify the gene expression (GE) signatures characteristic of each of these specific aneuploidy conditions. We hypothesized that the viability of cells with gross genomic imbalances might be associated with the activation of resilience mechanisms that are common to different trisomies and that are reflected by specific shared GE patterns. We report in this article our microarray GE analyses of amniocytes from fetuses with viable trisomy conditions, trisomy 21 or trisomy 18, to detect such common expression signatures...
October 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/29049009/seroepidemiology-of-coxsackievirus-b5-in-infants-and-children-in-jiangsu-province-china
#14
Fan Gao, Lianlian Bian, Xiaotian Hao, Yalin Hu, Xin Yao, Shiyang Sun, Pan Chen, Ce Yang, Ruixiao Du, Jingxin Li, Fengcai Zhu, Qunying Mao, Zhenglun Liang
Coxsackievirus B5 (CV-B5) is associated with various human diseases such as viral encephalitis, aseptic meningitis, paralysis, herpangina, and hand, foot and mouth disease (HFMD). However, there is currently no effective vaccine against CV-B5.The seroepidemiologic characteristics of CV-B5 remained unknown. A cohort study was carried out in 176 participants aged 6-35 months from January 2012 to January 2014. The serum samples were collected and tested for CV-B5 neutralizing antibodies (NtAbs) four times during these two years...
October 19, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29048996/aberrant-dna-methylation-in-radon-and-or-cigarette-smoke-induced-malignant-transformation-in-beas-2b-human-lung-cell-line
#15
Huanhuan Huang, Yahui Ji, Jiayu Zhang, Zhigang Su, Mingxing Liu, Jian Tong, Cuicui Ge, Tao Chen, Jianxiang Li
It is well known that cigarette smoking (CS) and/or radon (Rn) induce malignant transformation in lung cells. To investigate the mechanisms underlying lung carcinogenesis induced by CS, Rn; or Rn followed by CS using BEAS-2B cell line derived from human bronchial epithelial cells. BEAS-2B cells were exposed to either Rn (20,000 Bq/m(3)) for 30 min or CS (20%) for 10 min or Rn followed by CS for 40 min. Global and gene-specific DNA methylation modifications were measured by microarray and methylation-specific polymerase chain reaction...
October 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29048994/awareness-of-and-willingness-to-be-vaccinated-by-human-papillomavirus-vaccine-among-junior-middle-school-students-in-jinan-china
#16
Li Xue, Wenqi Hu, Haiman Zhang, Zhongling Xie, Xi Zhang, Fanghui Zhao, Youlin Qiao, Lijie Gao, Wei Ma
BACKGROUND: Willingness to be vaccinated with human papillomavirus (HPV) vaccine among junior middle school students in China is not well understood. We conducted a cross-sectional study to assess awareness of HPV and the HPV vaccine and explore the factors associated with willingness to be vaccinated. METHODS: First-year students from two junior middle schools in Jinan, China were selected by cluster sampling on December 28, 2015, December 26, 2016, and January 11, 2017, and a self-administered questionnaire was used to collect information...
October 19, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29048873/insights-into-mycobacteria-interactions-with-the-host-innate-immune-system-from-a-novel-array-of-synthetic-mycobacterial-glycans
#17
Ruixiang Blake Zheng, Sabine A F Jégouzo, Maju Joe, Yu Bai, Huu-Anh Tran, Ke Shen, Jörn Saupe, Li Xia, Md Faiaz Ahmed, Yu-Hsuan Liu, Pratap Subhashrao Patil, Ashish Tripathi, Shang-Cheng Hung, Maureen E Taylor, Todd L Lowary, Kurt Drickamer
An array of homogenous glycans representing all the major carbohydrate structures present in the cell wall of the human pathogen Mycobacterium tuberculosis and other mycobacteria has been probed with a panel of glycan-binding receptors expressed on cells of the mammalian innate immune system. The results provide an overview of interactions between mycobacterial glycans and receptors that mediate uptake and survival in macrophages, dendritic cells and sinusoidal endothelial cells. A subset of the wide variety of glycan structures present on mycobacterial surfaces interact with cells of the innate immune system through the receptors tested...
October 19, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/29048755/nifedipine-prevents-apoptosis-of-alcohol-exposed-first-trimester-trophoblast-cells
#18
Alan D Bolnick, Jay M Bolnick, Hamid-Reza Kohan-Ghadr, Brian A Kilburn, Michael Hertz, Jing Dai, Sascha Drewlo, D Randall Armant
BACKGROUND: Maternal alcohol abuse leading to fetal alcohol spectrum disorder (FASD) includes fetal growth restriction (FGR). Ethanol induces apoptosis of human placental trophoblast cells, possibly disrupting placentation and contributing to FGR in FASD. Ethanol facilitates apoptosis in several embryonic tissues, including human trophoblasts, by raising intracellular Ca(2+) . We previously found that acute ethanol exposure increases trophoblast apoptosis due to signaling from both intracellular and extracellular Ca(2+) ...
October 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29048687/sp1-promotes-tumor-angiogenesis-and-invasion-by-activating-vegf-expression-in-an-acquired-trastuzumab%C3%A2-resistant-ovarian-cancer-model
#19
Feng Su, Jing Geng, Xinying Li, Chuan Qiao, Longlong Luo, Jiannan Feng, Xinjun Dong, Ming Lv
Ovarian cancer is one of the most common gynecologic cancers and the leading cause of mortality in women worldwide. HER2/neu is overexpressed in various types of cancers and is most commonly associated with decreased survival. Trastuzumab is a humanized anti-HER2 monoclonal antibody for the treatment of HER2-positive breast cancers. However, primary and/or acquired resistance occurs in up to 62% patients during the first year of treatment. Vascular endothelial growth factor (VEGF) is a well‑known angiogenesis factor involved in many physiological and pathological processes...
September 25, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29048672/de-novo-synthesis-of-c4-4a-in-hepatocellular-carcinoma-promotes-migration-and-invasion-of-tumor-cells
#20
Magdalena Görtz, Uwe Galli, Thomas Longerich, Margot Zöller, Ulrike Erb, Peter Schemmer
C4.4A is a glycoprotein that is upregulated in several human malignancies, including colorectal, breast and renal cell carcinomas. Due to its highly restricted expression in healthy tissue, C4.4A was proposed as a potential diagnostic marker. Thus, the present study was designed to evaluate C4.4A expression and function in hepatocellular carcinoma (HCC) for the first time. Immunohistochemistry was performed to detect expression of C4.4A in human sections of healthy liver, primary HCC in the liver and metastatic HCC in the lung...
September 20, 2017: Oncology Reports
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