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https://www.readbyqxmd.com/read/28550396/genistein-protects-against-ox-ldl-induced-inflammation-through-microrna-155-socs1-mediated-repression-of-nf-%C3%A4-b-signaling-pathway-in-huvecs
#1
Huaping Zhang, Zhenxiang Zhao, Xuefen Pang, Jian Yang, Haixia Yu, Yinhong Zhang, Hui Zhou, Jiahui Zhao
Genistein plays an important role in the prevention of atherosclerosis. However, the underlying mechanisms have not been fully investigated. In this study, human umbilical vein endothelial cells (HUVECs) were pretreated with genistein (10, 100, and 1000 nM) for 6 h and then exposed to ox-LDL (50 mg/L) for another 24 h. Results showed that ox-LDL induced the expressions of E-selectin, P-selectin, monocyte chemotactic protein-1, interleukin-8, vascular adhesion molecule-1, and intercellular adhesion molecule-1, which were counteracted by genistein...
May 27, 2017: Inflammation
https://www.readbyqxmd.com/read/28550110/trpm8-inhibits-endothelial-cell-migration-via-a-non-channel-function-by-trapping-the-small-gtpase-rap1
#2
Tullio Genova, Guillaume P Grolez, Chiara Camillo, Michela Bernardini, Alexandre Bokhobza, Elodie Richard, Marco Scianna, Loic Lemonnier, Donatella Valdembri, Luca Munaron, Mark R Philips, Virginie Mattot, Guido Serini, Natalia Prevarskaya, Dimitra Gkika, Alessandra Fiorio Pla
Endothelial cell adhesion and migration are critical steps of the angiogenic process, whose dysfunction is associated with tumor growth and metastasis. The TRPM8 channel has recently been proposed to play a protective role in prostate cancer by impairing cell motility. However, the mechanisms by which it could influence vascular behavior are unknown. Here, we reveal a novel non-channel function for TRPM8 that unexpectedly acts as a Rap1 GTPase inhibitor, thereby inhibiting endothelial cell motility, independently of pore function...
May 26, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28549109/il-18-cleavage-triggers-cardiac-inflammation-and-fibrosis-upon-%C3%AE-adrenergic-insult
#3
Han Xiao, Hao Li, Jing-Jing Wang, Jian-Shu Zhang, Jing Shen, Xiang-Bo An, Cong-Cong Zhang, Ji-Min Wu, Yao Song, Xin-Yu Wang, Hai-Yi Yu, Xiang-Ning Deng, Zi-Jian Li, Ming Xu, Zhi-Zhen Lu, Jie Du, Wei Gao, Ai-Hua Zhang, Yue Feng, You-Yi Zhang
Aims: Rapid over-activation of β-adrenergic receptor (β-AR) upon stress leads to cardiac inflammation, a prevailing factor that underlies heart injury. However, mechanisms by which acute β-AR stimulation induce cardiac inflammation still remain unknown. Here, we set out to identify the crucial role of inflammasome/interleukin (IL)-18 in initiating and maintaining cardiac inflammatory cascades upon β-AR insult. Methods and results: Male C57BL/6 mice were injected with a single dose of β-AR agonist, isoproterenol (ISO, 5 mg/kg body weight) or saline subcutaneously...
May 26, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28548553/human-amniotic-membrane-is-not-suitable-for-the-grafting-of-colon-lesions-and-prevention-of-adhesions-in-a-xenograft-rat-model
#4
Dimitri Barski, Holger Gerullis, Thorsten Ecke, Gabriella Varga, Mihaly Boros, Isabel Pintelon, Jean-Pierre Timmermans, Thomas Otto
INTRODUCTION: New biological materials are needed for specific applications in reconstructive bowel surgery and for the prevention of adhesion formation. Amniotic membranes (AMs) are assumed to have a number of unique characteristics that enhance the ingrowth of the surrounding tissue. The aim of the present study was to provide proof of these qualities in a xenograft model. MATERIALS AND METHODS: A multilayer human AM (HAM) was applied to repair defined colon wall defects in Sprague-Dawley rats (n = 18)...
May 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28546749/blocking-rhinoviral-adhesion-molecule-icam-1-potential-to-prevent-copd-exacerbations
#5
COMMENT
Shakti Dhar Shukla, Philip Michael Hansbro, Eugene Haydn Walters
No abstract text is available yet for this article.
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28545668/phenethyl-isothiocyanate-suppresses-cancer-stem-cell-properties-in-vitro-and-in-a-xenograft-model
#6
Ji Ho Yun, Kyung-A Kim, Gyhye Yoo, Sun Young Kim, Ji Min Shin, Jung Hoon Kim, Sang Hoon Jung, Jungho Kim, Chu Won Nho
BACKGROUND: Cancer stem cells (CSCs) are a subset of cells within the bulk of a tumor that have the ability to self-renew and differentiate, and are thus associated with cancer invasion, metastasis, and recurrence. Phenethyl isothiocyanate (PEITC) is a natural compound found in cruciferous vegetables such as broccoli and is used as a cancer chemopreventive agent; however, its effects on CSCs are little known. PURPOSE: To evaluate the effect of PEITC on CSCs in this study by examining CSC properties...
July 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28545186/gallium-nanoparticle-mediated-reduction-of-brain-specific-serine-protease-4-in-an-experimental-metastatic-cancer-model
#7
Enas M Moustafa, Marwa Abdelhameed Mohamed, Noura M Thabet
Purpose: Tumor growth and metastasis depend on angiogenesis; therefore, efforts are being made to develop specific angiogenic inhibitors. Gallium (Ga) is the second most common metal ion, after platinum, used in cancer treatment. Its activities are numerous and various. In the present study, we aimed to investigate the effect of Ga on brain metastasis arising from hepatocellular carcinoma (HCC). Materials and methods: Forty experimental rats (divided into 4 groups) received diethylnitrosamine (DEN) at a dose (20 mg/kg...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28544621/a-cell-adhesive-peptide-from-tropoelastin-promotes-sequential-cell-attachment-and-spreading-via-distinct-receptors
#8
Pearl Lee, Giselle C Yeo, Anthony S Weiss
Tropoelastin is the dominant monomer that assembles to form elastin, which confers elasticity to vertebrate elastic tissues including skin, arteries and lungs. Tropoelastin interacts with cells through cell surface receptors including integrins and glycosaminoglycans (GAGs). As the region 17-18 is recognized as a key region in cell attachment and spreading, we utilized C-terminal truncated tropoelastin constructs containing dissected sections of domain 18. We mapped a cell interactive sequence of tropoelastin to domain 17 and the first 6 amino acids (aa) of domain 18...
May 24, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28544069/cd38-enhances-the-proliferation-and-inhibits-the-apoptosis-of-cervical-cancer-cells-by-affecting-the-mitochondria-functions
#9
Shan Liao, Songshu Xiao, Hongxiang Chen, Manying Zhang, Zhifang Chen, Yuehua Long, Lu Gao, Guangchao Zhu, Junyu He, Shuping Peng, Wei Xiong, Zhaoyang Zeng, Zheng Li, Ming Zhou, Xiaoling Li, Jian Ma, Minghua Wu, Juanjuan Xiang, Guiyuan Li, Yanhong Zhou
Cervical cancer is one of the most common malignant tumors in women all over the world. The exact mechanism of occurrence and development of cervical cancer has not been fully elucidated. CD38 is a type II transmembrane glycoprotein, which was found to mediate diverse activities, including signal transduction, cell adhesion, and cyclic ADP-ribose synthesis. Here, we reported that CD38 promoted cell proliferation and inhibited cell apoptosis in cervical cancer cells by affecting the mitochondria functions. We established stable cervical cancer cell lines with CD38 over-expressed...
May 23, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28542501/a-rho-associated-coiled-coil-containing-kinases-rock-inhibitor-y-27632-enhances-adhesion-viability-and-differentiation-of-human-term-placenta-derived-trophoblasts-in-vitro
#10
Kenichiro Motomura, Naoko Okada, Hideaki Morita, Mariko Hara, Masato Tamari, Keisuke Orimo, Go Matsuda, Ken-Ichi Imadome, Akio Matsuda, Takeshi Nagamatsu, Mikiya Fujieda, Haruhiko Sago, Hirohisa Saito, Kenji Matsumoto
Although human term placenta-derived primary cytotrophoblasts (pCTBs) represent a good human syncytiotrophoblast (STB) model, in vitro culture of pCTBs is not always easily accomplished. Y-27632, a specific inhibitor of Rho-associated coiled-coil containing kinases (ROCK), reportedly prevented apoptosis and improved cell-to-substrate adhesion and culture stability of dissociated cultured human embryonic stem cells and human corneal endothelial cells. The Rho kinase pathway regulates various kinds of cell behavior, some of which are involved in pCTB adhesion and differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/28542419/in-vivo-oxidized-albumin-a-pro-inflammatory-agent-in-hypoalbuminemia
#11
Faiga Magzal, Shifra Sela, Andrea Szuchman-Sapir, Snait Tamir, Regina Michelis, Batya Kristal
Hypoalbuminemia of Hemodialysis (HD) patients is an independent cardiovascular risk factor, however, there is no mechanistic explanation between hypoalbuminemia and vascular injury. In the event of oxidative stress and inflammation to which HD patients are exposed, albumin is oxidized and undetected by common laboratory methods, rendering an apparent hypoalbuminemia. We wanted to show that these circulating modified oxidized albumin molecules cause direct vascular damage, mediating inflammation. Once these in-vivo albumin modifications were reduced in- vitro, the apparent hypoalbuminemia concomitantly with its inflammatory effects, were eliminated...
2017: PloS One
https://www.readbyqxmd.com/read/28540581/streptococcus-mutans-adherence-and-biofilm-formation-on-experimental-composites-containing-dicalcium-phosphate-dihydrate-nanoparticles
#12
Andrei C Ionescu, Sebastian Hahnel, Gloria Cazzaniga, Marco Ottobelli, Roberto Ruggiero Braga, Marcela Charantola Rodrigues, Eugenio Brambilla
This study aimed at evaluating bacterial adhesion and biofilm formation on resin-based composites (RBC) including dicalcium phosphate dihydrate nanoparticles (nDCPD). METHODS: Specimens were prepared from experimental RBCs with BisGMA/TEGDMA resin matrix including 20 vol% of either nDCPD (nDCPD-RBC), TEGDMA-functionalized nDPCD (F-nDCPD-RBC) or silanized silica (SiO2-RBC). Neat resin blend (control-Resin), conventional nanohybrid RBC (control-RBC) and human enamel were used for reference...
July 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28538813/mechanisms-of-endothelial-protection-by-natural-bioactive-compounds-from-fruit-and-vegetables
#13
Bernardita Monsalve, Anibal Concha-Meyer, Iván Palomo, Eduardo Fuentes
The endothelium is fundamental for the regulation of vascular tone and structure. Under disease conditions, including the presence of cardiovascular disease risk factors, the endothelium loses its protective role and becomes a proatherosclerotic structure. In this article we searched for strategies from PUBMED and Science Direct databases using the following key words: endothelium, natural bioactive compounds, polyphenols and cardiovascular diseases. The search was restricted to english language papers. Studies have identified the contribution of diet to the risk of developing cardiovascular diseases...
May 22, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28536898/impact-of-tissue-adhesives-on-the-prevention-of-anastomotic-leakage-of-colonic-anastomoses-an-in-vivo-study
#14
Konstantinos A Vakalopoulos, Joanna W A M Bosmans, Kevin W Y van Barneveld, Ruben R M Vogels, Geesien S A Boersema, Zhouqiao Wu, Marion J J Gijbels, Johannes Jeekel, Gert-Jan Kleinrensink, Nicole D Bouvy, Johan F Lange
BACKGROUND: Tissue adhesives (TA) may be useful to strengthen colorectal anastomoses, thereby preventing anastomotic leakage (AL). Previous studies have identified cyanoacrylate (CA) TAs as the most promising colonic anastomotic sealants. This study investigates the protective effects of sealing colonic anastomoses with various CAs. MATERIALS AND METHODS: Fifty-five Wistar rats underwent laparotomy and transection of the proximal colon. An anastomosis was created with 4 interrupted sutures followed by either application of Histoacryl Flexible, Omnex, Glubran 2, or no TA seal...
May 23, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28536193/the-ferm-protein-epb41l5-regulates-actomyosin-contractility-and-focal-adhesion-formation-to-maintain-the-kidney-filtration-barrier
#15
Christoph Schell, Manuel Rogg, Martina Suhm, Martin Helmstädter, Dominik Sellung, Mako Yasuda-Yamahara, Oliver Kretz, Victoria Küttner, Hani Suleiman, Laxmikanth Kollipara, René P Zahedi, Albert Sickmann, Stefan Eimer, Andrey S Shaw, Albrecht Kramer-Zucker, Mariko Hirano-Kobayashi, Takaya Abe, Shinichi Aizawa, Florian Grahammer, Björn Hartleben, Jörn Dengjel, Tobias B Huber
Podocytes form the outer part of the glomerular filter, where they have to withstand enormous transcapillary filtration forces driving glomerular filtration. Detachment of podocytes from the glomerular basement membrane precedes most glomerular diseases. However, little is known about the regulation of podocyte adhesion in vivo. Thus, we systematically screened for podocyte-specific focal adhesome (FA) components, using genetic reporter models in combination with iTRAQ-based mass spectrometry. This approach led to the identification of FERM domain protein EPB41L5 as a highly enriched podocyte-specific FA component in vivo...
May 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28535664/characterization-of-alphax-i-domain-binding-to-receptors-for-advanced-glycation-end-products-rage
#16
Dolgorsuren Buyannemekh, Sang-Uk Nham
The b2 integrins are cell surface transmembrane proteins regulating leukocyte functions, such as adhesion and migration. Two members of b2 integrin, aMb2 and aXb2, share the leukocyte distribution profile and integrin aXb2 is involved in antigen presentation in dendritic cells and transendothelial migration of monocytes and macrophages to atherosclerotic lesions. Receptor for advanced glycation end products (RAGE), a member of cell adhesion molecules, plays an important role in chronic inflammation and atherosclerosis...
May 24, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28535594/industrial-pm2-5-cause-pulmonary-adverse-effect-through-rhoa-rock-pathway
#17
Junyan Yan, Chia-Hsiang Lai, Shih-Chun Candice Lung, Chongjun Chen, Wen-Cheng Wang, Pin-I Huang, Chia-Hua Lin
According to the Chinese Ministry of Health, industrial pollution-induced health impacts have been the leading cause of death in China. While industrial fine particulate matter (PM2.5) is associated with adverse health effects, the major action mechanisms of different compositions of PM2.5 are currently unclear. In this study, we treated normal human lung epithelial BEAS-2B cells with industrial organic and water-soluble PM2.5 extracts under daily alveolar deposition dose to elucidate the molecular mechanisms underlying adverse pulmonary effects induced by PM2...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28534978/demethylzeylasteral-ameliorates-inflammation-in-a-rat-model-of-unilateral-ureteral-obstruction-through-inhibiting-activation-of-the-nf%C3%A2-%C3%AE%C2%BAb-pathway
#18
Qiang Wang, Yanmei Xiao, Tongwei Liu, Haibo Yuan, Chunwu Li
The present study investigated the pharmacodynamic role and therapeutic mechanism of demethylzeylasteral in the suppression of inflammation in a rat model of unilateral ureteral obstruction and reduction in nuclear factor (NF)‑κB pathway activity. The rats in the unilateral ureteral obstruction model were treated with 30‑120 mg/kg demethylzeylasteral for 8 weeks. The activities of tumor necrosis factor (TNF)‑α, interleukin (IL)‑6 and caspase‑3/9, and the protein expression levels of cyclooxygenase (COX)‑2 and intercellular adhesion molecule‑1 (ICAM‑1) and NF‑κB p65 were analyzed using ELISA kits and western blot analyses, respectively...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534474/influence-of-nanoscale-topology-on-bactericidal-efficiency-of-black-silicon-surfaces
#19
Denver P Linklater, Huu Khuong Duy Nguyen, Chris M Bhadra, Saulius Juodkazis, Elena P Ivanova
The nanostructuring of materials to create bactericidal and antibiofouling surfaces presents an exciting alternative to common methods of preventing bacterial adhesion. The fabrication of synthetic bactericidal surfaces has been inspired by the anti-wetting and anti-biofouling properties of insect wings, and other topologies found in nature. Black silicon is one such synthetic surfaces which has established bactericidal properties. In this study we show that time-dependent plasma etching of silicon wafers using 15, 30, and 45 min etching intervals, is able to produce different surface geometries with linearly increasing heights of approximately 280, 430, and 610 nm, respectively...
May 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28533472/yersinia-pestis-yopk-inhibits-bacterial-adhesion-to-host-cells-by-binding-to-the-extracellular-matrix-adaptor-protein-matrilin-2
#20
Yafang Tan, Wanbing Liu, Qingwen Zhang, Shiyang Cao, Haihong Zhao, Tong Wang, Zhizhen Qi, Yanping Han, Yajun Song, Xiaoyi Wang, Ruifu Yang, Zongmin Du
Pathogenic yersiniae harbor a type III secretion system (T3SS) that injects Yersinia outer protein (Yop) into host cells. YopK has been shown to control Yop translocation and prevent inflammasome recognition of T3SS by the innate immune system. Here, we demonstrate that YopK inhibits bacterial adherence to host cells by binding to the extracellular matrix adaptor protein matrilin-2 (MATN2). YopK binds to MATN2 and deleting the amino acids 91--124 disrupts binding of YopK to MATN2. A yopK null mutant exhibits hyper-adhesive phenotype, which could be responsible for the established Yop hyper-translocation phenotype of yopK mutant...
May 22, 2017: Infection and Immunity
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