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https://www.readbyqxmd.com/read/29342121/%C3%AE-escin-effectively-modulates-huvecs-proliferation-and-tube-formation
#1
Lenka Varinská, Lenka Fáber, Martin Kello, Eva Petrovová, Ľudmila Balážová, Peter Solár, Matúš Čoma, Peter Urdzík, Ján Mojžiš, Emil Švajdlenka, Pavel Mučaji, Peter Gál
In the present study we evaluated the anti-angiogenic activities of β-escin (the major active compound of Aesculus hippocastanum L. seeds). Human umbilical-vein endothelial cells (HUVECs) were used as an in vitro model for studying the molecular mechanism underlying the anti-angiogenic effect of β-escin. We investigated the in vitro effects on proliferation, migration, and tube formation of HUVECs and in vivo anti-angiogenic activity was evaluated in a chick chorioallantoic membrane (CAM) angiogenesis assay...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29341300/inflammatory-and-related-biomarkers-are-associated-with-post-transplant-diabetes-mellitus-in-kidney-recipients
#2
Torbjørn F Heldal, Thor Ueland, Trond Jenssen, Anders Hartmann, Anna V Reisaeter, Pål Aukrust, Annika Michelsen, Anders Åsberg
In this study we investigate the association between selected inflammatory related biomarkers and post transplant hyperglycemia in kidney transplant recipients. This retrospective analysis comprises 852 patients receiving a kidney transplant at the Norwegian national transplant centre between 2007 and 2012, all having a normal oral glucose tolerance test (OGTT) before transplantation. A diagnostic OGTT was performed 10 weeks post-transplant to examine the association between inflammation related biomarkers and two-hour plasma glucose (2HPG) by multivariable linear regression models adjusting for BMI, age, graft function, fasting insulin levels, dosage of prednisolone, and concentration of calcineurin inhibitors...
January 16, 2018: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29340931/vascutrainer-a-mobile-and-disposable-bioreactor-system-for-the-conditioning-of-tissue-engineered-vascular-grafts
#3
Frederic Wolf, Diana M Rojas González, Ulrich Steinseifer, Markus Obdenbusch, Werner Herfs, Christian Brecher, Stefan Jockenhoevel, Petra Mela, Thomas Schmitz-Rode
In vitro tissue engineering of vascular grafts requires dynamic conditioning in a bioreactor system for in vitro tissue maturation and remodeling to receive a mechanically adequate and hemocompatible implant. The goal of the current work was to develop a bioreactor system for the conditioning of vascular grafts which is (i) able to create a wide range of flow, pressure and frequency conditions, including physiological ones; (ii) compact and easy to assemble; (iii) transportable; (iv) disposable. The system is driven by a small centrifugal pump controlled via a custom-made control unit, which can also be operated on batteries to allow for autonomous transportation...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29340859/comparative-proteomics-of-chromium-transformed-beas-2b-cells-by-2d-dige-and-maldi-tof-tof-ms
#4
Jian Lu, Miaomiao Tang, Yi Liu, Jin Wang, Zhanao Wu
Chromium (Cr) is a highly toxic, common heavy metal used in industrial production. There are two types of Cr in nature: hexavalent chromium (Cr(VI)) and chromium trichloride (Cr(III)). Cr(III) is involved in the metabolism of sugars and lipids, whereas Cr(VI) is absorbed through the respiratory tract and skin and generates free radicals that result in secondary toxicity. Cr(VI) leads to cancer in the occupational population and is therefore recognized as a human carcinogen by the International Agency for Research on Cancer...
January 16, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29340634/efficient-decellularization-for-bovine-pericardium-with-extracellular-matrix-preservation-and-good-biocompatibility
#5
Ning Li, Yang Li, Dejun Gong, Cuiping Xia, Xiaohong Liu, Zhiyun Xu
OBJECTIVES: In this study, we sought to explore an efficient decellularization protocol for bovine pericardia with better extracellular matrix preservation and good biocompatibility. METHODS: Bovine pericardia were decellularized by sodium dodecyl sulphate (SDS), SDS + sodium deoxycholate (SD), Triton X-100 (TX), TX + SD (TS), freeze-thaw cycles + SDS + SD (FSS) and freeze-thaw cycles + TX + SD (FTS), respectively. Untreated pericardia were used as native control...
January 10, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29340332/endothelial-progenitor-cells-and-vascular-health-in%C3%A2-dialysis-patients
#6
Brooke M Huuskes, Ryan J DeBuque, Kevan R Polkinghorne, Chrishan S Samuel, Peter G Kerr, Sharon D Ricardo
No abstract text is available yet for this article.
January 2018: KI Reports
https://www.readbyqxmd.com/read/29340098/icam-1-regulates-macrophage-polarization-by-suppressing-mcp-1-expression-via-mir-124-upregulation
#7
Wei Gu, Lun Yao, Lexing Li, Jianping Zhang, Aaron T Place, Richard D Minshall, Guoquan Liu
Intercellular adhesion molecule-1 is the adhesion molecule mediating leukocyte firm adhesion to endothelial cells, plays a critical role in subsequent leukocyte transmigration. ICAM-1 is also expressed in other cells including macrophages; however, the role of this adhesion molecule in mediating macrophage functions remains enigmatic. We report that ICAM-1 regulates macrophage polarization by positively modulating miR-124 expression. We found higher expression levels of monocyte chemotactic protein-1 in lungs of mice lacking ICAM-1...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340079/high-expression-of-angiogenic-factor-aggf1-is-an-independent-prognostic-factor-for-hepatocellular-carcinoma
#8
Jianfei Tu, Xihui Ying, Dengke Zhang, Qiaoyou Weng, Weibo Mao, Li Chen, Xulu Wu, Chaoyong Tu, Jiansong Ji, Yuan Huang
Background: Angiogenesis plays a critical role in tumor growth and metastasis. Angiogenic factor with G patch and FHA domains 1 (AGGF1) has been recently identified as a novel initiator of angiogenesis. However, the function and the prognostic values of AGGF1 in hepatocellular carcinoma remain poorly understood. Our aim is to provide more information to assist design the angiogenesis therapy that targets AGGF1 in HCC. Results: AGGF1-positive frequency in HCC tissues was significantly higher than in peritumor tissues...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340060/assessment-of-antimicrobial-and-wound-healing-effects-of-brevinin-2ta-against-the-bacterium-klebsiella-pneumoniae-in-dermally-wounded-rats
#9
Siqin Liu, Qilin Long, Yang Xu, Jun Wang, Zhongwei Xu, Lei Wang, Mei Zhou, Yuxin Wu, Tianbao Chen, Chris Shaw
Antimicrobial peptides (AMPs) are regarded as promising alternatives for antibiotics due to their inherent capacity to prevent microbial drug resistance. Amphibians are rich source of bioactive molecules, which provide numerous AMPs with various structures as drug candidates. Here, we isolated and identified a novel AMP Brevinin-2Ta (B-2Ta) from the skin secretion of the European frog, Pelophylax kl. esculentus. In vitro studies revealed that it showed broad antimicrobial activities against S. aureus, E. coli and C...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340033/cxcr4-expressing-mist1-progenitors-in-the-gastric-antrum-contribute-to-gastric-cancer-development
#10
Kosuke Sakitani, Yoku Hayakawa, Huan Deng, Hiroshi Ariyama, Hiroto Kinoshita, Mitsuru Konishi, Satoshi Ono, Nobumi Suzuki, Sozaburo Ihara, Zhengchuan Niu, Woosook Kim, Takayuki Tanaka, Haibo Liu, Xiaowei Chen, Yagnesh Tailor, James G Fox, Stephen F Konieczny, Hiroshi Onodera, Antonia R Sepulveda, Samuel Asfaha, Yoshihiro Hirata, Daniel L Worthley, Kazuhiko Koike, Timothy C Wang
Mist1 was recently shown to identify a discrete population of stem cells within the isthmus of the oxyntic gland within the gastric corpus. Chief cells at the base of the gastric corpus also express Mist1. The relevance of Mist1 expression as a marker of specific cell populations within the antral glands of the distal stomach, however, is unknown. Using Mist1-CreERT mice, we revealed that Mist1+ antral cells, distinct from the Mist1+ population in the corpus, comprise long-lived progenitors that reside within the antral isthmus above Lgr5+ or CCK2R+ cells...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340032/c3g-promotes-a-selective-release-of-angiogenic-factors-from-activated-mouse-platelets-to-regulate-angiogenesis-and-tumor-metastasis
#11
Víctor Martín-Granado, Sara Ortiz-Rivero, Rita Carmona, Sara Gutiérrez-Herrero, Mario Barrera, Laura San-Segundo, Celia Sequera, Pedro Perdiguero, Francisco Lozano, Francisco Martín-Herrero, José Ramón González-Porras, Ramón Muñoz-Chápuli, Almudena Porras, Carmen Guerrero
Previous observations indicated that C3G (RAPGEF1) promotes α-granule release, evidenced by the increase in P-selectin exposure on the platelet surface following its activation. The goal of the present study is to further characterize the potential function of C3G as a modulator of the platelet releasate and its implication in the regulation of angiogenesis. Proteomic analysis revealed a decreased secretion of anti-angiogenic factors from activated transgenic C3G and C3G∆Cat platelets. Accordingly, the secretome from both transgenic platelets had an overall pro-angiogenic effect as evidenced by an in vitro capillary-tube formation assay with HUVECs (human umbilical vein endothelial cells) and by two in vivo models of heterotopic tumor growth...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339785/the-lncrna-gata6-as-epigenetically-regulates-endothelial-gene-expression-via-interaction-with-loxl2
#12
Philipp Neumann, Nicolas Jaé, Andrea Knau, Simone F Glaser, Youssef Fouani, Oliver Rossbach, Marcus Krüger, David John, Albrecht Bindereif, Phillip Grote, Reinier A Boon, Stefanie Dimmeler
Impaired or excessive growth of endothelial cells contributes to several diseases. However, the functional involvement of regulatory long non-coding RNAs in these processes is not well defined. Here, we show that the long non-coding antisense transcript of GATA6 (GATA6-AS) interacts with the epigenetic regulator LOXL2 to regulate endothelial gene expression via changes in histone methylation. Using RNA deep sequencing, we find that GATA6-AS is upregulated in endothelial cells during hypoxia. Silencing of GATA6-AS diminishes TGF-β2-induced endothelial-mesenchymal transition in vitro and promotes formation of blood vessels in mice...
January 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29339754/baicalin-modulates-nf-%C3%AE%C2%BAb-and-nlrp3-inflammasome-signaling-in-porcine-aortic-vascular-endothelial-cells-infected-by-haemophilus-parasuis-causing-gl%C3%A3-sser-s-disease
#13
Shulin Fu, Huashan Liu, Lei Xu, Yinsheng Qiu, Yu Liu, Zhongyuan Wu, Chun Ye, Yongqing Hou, Chien-An Andy Hu
Haemophilus parasuis (H. parasuis) can cause vascular inflammatory injury, but the molecular basis of this effect remains unclear. In this study,we investigated the effect of the anti-inflammatory, anti-microbial and anti-oxidant agent, baicalin, on the nuclear factor (NF)-κB and NLRP3 inflammasome signaling pathway in pig primary aortic vascular endothelial cells. Activation of the NF-κB and NLRP3 inflammasome signaling pathway was induced in H. parasuis-infected cells. However, baicalin reduced the production of reactive oxygen species, apoptosis, and activation of the NF-κB and NLRP3 inflammasome signaling pathway in infected cells...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339666/preventive-cold-acclimation-augments-the-reparative-function-of-endothelial-progenitor-cells-in-mice
#14
Cheng Peng, Li-Ping Wang, Xia Tao, Xiao-Hui Dong, Chun-Fang Xu, Yu Jiang, Chun-Long Liu, Hui-Fang Ma, Chuan Zhang, Alex F Chen, He-Hui Xie
BACKGROUND/AIMS: Chronic cold exposure may increase energy expenditure and contribute to counteracting obesity, an important risk factor for cerebrocardiovascular diseases. This study sought to evaluate whether preventive cold acclimation before ischemia onset might be a promising option for preventing cerebral ischemic injury. METHODS: After a 14-day cold acclimation period, young and aged mice were subjected to permanent cerebral ischemia, and histological analyses and behavioral tests were performed...
January 15, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29339637/corneal-collagen-crosslinking-combined-with-phototherapeutic-keratectomy-and-photorefractive-keratectomy-for-corneal-ectasia-after-laser-in-situ-keratomileusis
#15
Wei Zhu, Yunfei Han, Changxia Cui, Wenwen Xu, Xuan Wang, Xiaoxiao Dou, Linlin Xu, Yanyun Xu, Guoying Mu
PURPOSE: The aim of this study was to analyze the effects of corneal crosslinking (CXL) combined with phototherapeutic keratectomy (PTK) and photorefractive keratectomy (PRK) in halting the progression and improving the visual function of corneal ectasia after laser in situ keratomileusis (LASIK). METHODS: PTK-PRK-CXL was performed on 14 eyes of 14 patients who developed corneal ectasia after LASIK. The visual acuity, spherical refraction and cylinder, corneal topography indices, thinnest corneal thickness (TCT), and endothelial cell count were evaluated at baseline and at 1, 3, 6, and 12 months postoperatively...
January 17, 2018: Ophthalmic Research
https://www.readbyqxmd.com/read/29339517/infected-erythrocytes-expressing-dc13-pfemp1-differ-from-recombinant-proteins-in-epcr-binding-function
#16
Yvonne Azasi, Gabriella Lindergard, Ashfaq Ghumra, Jianbing Mu, Louis H Miller, J Alexandra Rowe
Recent advances have identified a new paradigm for cerebral malaria pathogenesis in which endothelial protein C receptor (EPCR) is a major host receptor for sequestration of Plasmodium falciparum-infected erythrocytes (IEs) in the brain and other vital organs. The parasite adhesins that bind EPCR are members of the IE variant surface antigen family Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) containing specific adhesion domains called domain cassette (DC) 8 and DC13. The binding interaction site between PfEMP1 and EPCR has been mapped by biophysical and crystallography studies using recombinant proteins...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339432/deregulation-of-hdac5-by-viral-interferon-regulatory-factor-3-plays-an-essential-role-in-kaposi-s-sarcoma-associated-herpesvirus-induced-lymphangiogenesis
#17
Hye-Ra Lee, Fan Li, Un Yung Choi, Hye Ryun Yu, Grace M Aldrovandi, Pinghui Feng, Shou-Jiang Gao, Young-Kwon Hong, Jae U Jung
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent for Kaposi's sarcoma (KS), which is one of the most common HIV-associated neoplasms. The endothelium is the thin layer of squamous cells where vascular blood endothelial cells (BECs) line the interior surface of blood vessels and lymphatic endothelial cells (LECs) are in direct contact with lymphatic vessels. The KS lesions contain a prominent compartment of neoplastic spindle morphology cells that are closely related to LECs. Furthermore, while KSHV can infect both LECs and BECs in vitro, its infection activates genetic programming related to lymphatic endothelial cell fate, suggesting that lymphangiogenic pathways are involved in KSHV infection and malignancy...
January 16, 2018: MBio
https://www.readbyqxmd.com/read/29339404/hif-1%C3%AE-and-hif-2%C3%AE-regulate-hemogenic-endothelium-and-hematopoietic-stem-cell-formation-in-zebrafish
#18
Claudia Gerri, Michele Marass, Andrea Rossi, Didier Y R Stainier
During development, hematopoietic stem cells (HSCs) derive from specialized endothelial cells (ECs), called hemogenic endothelium (HE), via a process called endothelial-to-hematopoietic transition (EHT). While hypoxia inducible factor-1α (HIF-1α) has been reported to positively modulate EHT in vivo, current data indicate the existence of other regulators of this process. Here we show that in zebrafish Hif-2α also positively modulates HSC formation. Specifically, HSC marker gene expression is strongly decreased in hif-1aa;hif-1ab (hif-1α) and in hif-2aa;hif-2ab (hif-2α) zebrafish mutants and morphants...
January 16, 2018: Blood
https://www.readbyqxmd.com/read/29339317/arterial-stenosis-in-antiphospholipid-syndrome-update-on-the-unrevealed-mechanisms-of-an-endothelial-disease
#19
REVIEW
Ghita Harifi, Wared Nour-Eldine, Mohammad Hassan A Noureldine, Mohammad Baker Berjaoui, Romy Kallas, Rita Khoury, Imad Uthman, Jamal Al-Saleh, Munther A Khamashta
First described in 1983, antiphospholipid syndrome (APS) is an autoimmune condition characterized by the occurrence of recurrent arterial and/or venous thrombosis, and/or pregnancy morbidity, in the setting of persistent presence of antiphospholipid antibodies (aPL). While thrombosis is the most well-known pathogenic mechanism in this disorder, the relevance of some other mechanisms such as arterial stenosis is being increasingly recognized. Arterial stenosis has been first described in the renal arteries in patients with APS, however intracranial and coeliac arteries can also be involved with various and treatable clinical manifestations...
January 12, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29339213/nrp-2-in-tumor-lymphangiogenesis-and-lymphatic-metastasis
#20
Jingwen Wang, Yuhong Huang, Jun Zhang, Boyi Xing, Wei Xuan, Honghai Wang, He Huang, Jiayu Yang, Jianwu Tang
Neuropilin-2 (NRP-2) not only functions as a receptor for semaphorins, a family of neural axon guidance factors, but also interacts with VEGFs, a family of vascular endothelial growth factors. As an independent receptor or a co-receptor, NRP-2 binds to ligands VEGF-C/D, activates the VEGF-C/D-NRP-2 signaling axis, and further regulates lymphangiogenesis-associated factors in both lymphatic endothelial cells (LECs) and some tumor cells during tumor progression. Via VEGF-C/D-NRP-2 axis, NRP-2 induces LEC proliferation, reconstruction and lymphangiogenesis and subsequently promotes tumor cell migration, invasion and lymphatic metastasis...
January 12, 2018: Cancer Letters
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