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https://www.readbyqxmd.com/read/29792953/protective-effect-of-s-nitrosoglutathione-administration-against-hyperglycemia-induced-disruption-of-blood-brain-barrier-is-mediated-by-alterations-in-tight-junction-proteins-and-cell-adhesion-molecules
#1
Aanchal Aggarwal, Inderjit Singh, Rajat Sandhir
Diabetes is associated with increased blood brain barrier (BBB) permeability resulting in neurological deficits. The present study investigated the role of S-nitrosoglutathione (GSNO) on tight junction proteins and cell adhesion molecules in streptozotocin-induced diabetic mice. Diabetes was induced by intraperitoneal injection of streptozotocin (40 mg/kg body weight) for 5 days in mice. GSNO was administered daily (100 μg/kg body weight, orally) for 8 weeks after the induction of diabetes. A significant decline was observed in the cognitive ability of diabetic animals assessed using radial arm maze test...
May 21, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29791209/binding-of-intercellular-adhesion-molecule-1-to-%C3%AE-2-integrin-regulates-distinct-cell-adhesion-on-hepatic-and-cerebral-endothelium
#2
Chun-Fang Tong, Yan Zhang, Shou-Qin Lü, Ning Li, Yi-Xin Gong, Hao Yang, Shi-Liang Feng, Yu Du, Dan-Dan Huang, Mian Long
Flowing neutrophils (PMNs) are forced to recruit towards inflamed tissue and adhere on vascular endothelial cells, which is primarily mediated by the binding of β2 -integrins to ICAM-1s. This process is distinct among different organs such as liver and brain, however, the underlying kinetic and mechanical mechanisms regulating tissue-specific recruitment of PMNs remain unclear. Here binding kinetics measurement showed that, ICAM-1 on murine hepatic sinusoidal endothelial cells (LSECs) bound to lymphocyte function-associated antigen-1 (LFA-1) with higher on- and off-rates but lower effective affinity compared to macrophage-1 antigen (Mac-1), while ICAM-1 on cerebral endothelial cells (BMECs or bEnd...
May 23, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29790294/jak-stat-blockade-alters-synovial-bioenergetics-mitochondrial-function-and-pro-inflammatory-mediators-in-rheumatoid-arthritis
#3
Trudy McGarry, Carl Orr, Sarah Wade, Monika Biniecka, Siobhan Wade, Lorna Gallagher, Candice Low, Douglas J Veale, Ursula Fearon
OBJECTIVE: To examine the effect of tofacitinib on metabolic activity, mitochondrial function and pro-inflammatory mechanisms in Rheumatoid Arthritis. METHODS: Ex-vivo RA synovial explants and primary RA synovial fibroblasts (RAFLS) were cultured with tofacitinib (1μM). RAFLS bioenergetics was assessed using the XF24-Flux-analyser, and key metabolic genes by real-time PCR. Mitochondrial function was assessed using specific cell fluorescent probes and by mitochondrial gene arrays...
May 23, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29789401/treatment-with-eucalyptol-mitigates-cigarette-smoke-induced-lung-injury-through-suppressing-icam-1-gene-expression
#4
Na Yu, Yi-Tian Sun, Xin-Ming Su, Miao He, Bing Dai, Jian Kang
Objectives : This study was conducted to investigate of the clinical significance of Eucalyptol in treating cigarette smoke-induced lung injury with the potential mechanism involved in the event. Methods : Rats were exposed to air (control) and cigarette smoke (smoking) after they were treated with Eucalyptol (260mg/kg) orally once a day for 12 weeks. Cell counts of bronchoalveolar lavage fluid (BALF), measurements of mean liner intercept (MLI) and mean alveolar number (MAN) and lung function test were executed in experimental animals...
May 22, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29788362/similar-inhibition-of-dynamic-adhesion-of-lymphocytes-from-ibd-patients-to-madcam-1-by-vedolizumab-and-etrolizumab-s
#5
Marie-Theres Binder, Emily Becker, Maximilian Wiendl, Lena Schleier, Friederike Fuchs, Moritz Leppkes, Raja Atreya, Clemens Neufert, Imke Atreya, Markus F Neurath, Sebastian Zundler
Background: Although anti-adhesion therapies are a novel mainstay in the treatment of inflammatory bowel diseases (IBDs), the mechanisms controlling integrin-dependent gut homing are poorly elucidated, and the available techniques for translational functional investigations are limited. Methods: We used dynamic adhesion assays to study adhesion of CD4+ T cells, CD8+ T cells, CD19+ B cells, and granulocytes to the addressins MAdCAM-1, VCAM-1, and ICAM-1. The effects of vedolizumab, natalizumab, etrolizumab-s, anti-CD11a, and anti-CD18 antibodies were explored...
May 18, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29778758/major-traits-of-the-senescent-phenotype-of-nucleus-pulposus-intervertebral-disc-cells-persist-under-the-specific-microenvironmental-conditions-of-the-tissue
#6
Anastasios Kouroumalis, Eleni Mavrogonatou, Olga D Savvidou, Panayiotis J Papagelopoulos, Harris Pratsinis, Dimitris Kletsas
Intervertebral discs (IVDs) are the joints of the spine, mainly consisting of extracellular matrix (ECM) with a low number of cells embedded therein. Low cellularity stems from nutrient deprivation due to the lack of blood supply, as well as from the hypoxic and hyperosmotic conditions prevailing in the tissue. Intervertebral disc degeneration (IDD) has been firmly connected with low back pain, a major age-related disease, whereas degenerated discs have been characterized by increased proteolytic activity and accumulation of senescent cells...
May 17, 2018: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/29777902/chemical-characterization-and-cerebroprotective-effect-of-methanolic-root-extract-of-colebrookea-oppositifolia-in-rats
#7
Gollapalle Lakshminarayanashastry Viswanatha, Marikunte V Venkataranganna, Nunna Bheema Lingeswara Prasad, Shylaja Hanumanthappa
ETHNOPHARMACOLOGICAL RELEVANCE: Colebrookea oppositifolia Smith is one of the extensively used plants to treat neurological conditions such as epilepsy by the various ethnic communities in sub-Himalayan regions of India such as Bhoxa, Tharu and nomadic Gujjars. AIM OF THE STUDY: This study was conducted to evaluate the cerebroprotective effect of C. oppositifolia methanolic root (MeCO) extract in Wistar rats. MATERIALS AND METHODS: The MeCO was characterized for total phenolic content and later subjected for detailed liquid chromatography-mass spectrometry analysis...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29775893/puerarin-prevents-vascular-endothelial-injury-through-suppression-of-nf-%C3%AE%C2%BAb-activation-in-lps-challenged-human-umbilical-vein-endothelial-cells
#8
Hua-Fei Deng, Sha Wang, Lian Li, Qin Zhou, Wan-Bei Guo, Xiao-Li Wang, Mei-Dong Liu, Ke Liu, Xian-Zhong Xiao
OBJECTIVE: In the present study, we aimed to explore the effects of puerarin on vascular endothelial cell injury induced by lipopolysaccharide (LPS) and its underlying mechanisms. METHODS: The cell viability and morphological changes were assessed using the cell counting kit-8 (CCK-8) assay and 4´,6-diamidino-2-phenylindole (DAPI) staining, respectively. The levels of tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), monocyte/macrophage chemotactic protein-1 (MCP-1), IL-8, intercellular cell adhesion molecule-1 (ICAM-1), thrombomodulin (TM) and plasminogen activator inhibitor-1 (PAI-1) in cell culture supernatant were determined by the enzyme-linked immunosorbent assay (ELISA)...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29774029/lfa-1-in-t-cell-migration-and-differentiation
#9
REVIEW
Brandon L Walling, Minsoo Kim
Maintenance of homeostatic immune surveillance and development of effective adaptive immune responses require precise regulation of spatial and temporal lymphocyte trafficking throughout the body to ensure pathogen clearance and memory generation. Dysregulation of lymphocyte activation and migration can lead to impaired adaptive immunity, recurrent infections, and an array of autoimmune diseases and chronic inflammation. Central to the recruitment of T cells, integrins are cell surface receptors that regulate adhesion, signal transduction, and migration...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29771268/hiv-disease-is-associated-with-increased-biomarkers-of-endothelial-dysfunction-despite-viral-suppression-on-long-term-antiretroviral-therapy-in-botswana
#10
Mosepele Mosepele, Terence Mohammed, Lucy Mupfumi, Sikhulile Moyo, Kara Bennett, Shahin Lockman, Linda C Hemphill, Virginia A Triant
BACKGROUND: Untreated HIV infection is associated with increased biomarkers of endothelial dysfunction. However, the predictors and degree of endothelial dysfunction among virally suppressed HIV-infected adults on long-term antiretroviral therapy (ART) have not been well studied in sub-Saharan Africa (SSA). METHODS: We enrolled 112 HIV-infected adults with virological suppression on long-term ART and 84 HIV-uninfected controls in Botswana. We measured plasma levels of markers of endothelial injury [soluble vascular adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1) and E-selectin] and plasma levels of biomarkers of inflammation [interleukin 6 (IL-6)] and monocyte activation (sCD163)...
May 14, 2018: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29766401/penehyclidine-hydrochloride-decreases-pulmonary-microvascular-endothelial-inflammatory-injury-through-a-beta-arrestin-1-dependent-mechanism
#11
Fei Zheng, Fei Xiao, Qing-Hong Yuan, Qiang-Sheng Liu, Zong-Ze Zhang, Yan-Lin Wang, Jia Zhan
Penehyclidine hydrochloride (PHC), a type of hyoscyamus drug, has both antimuscarinic and antinicotinic activities and retains potent central and peripheral anticholinergic activities. Compared with other hyoscyamine, the notable advantage of PHC is that it has few M2 receptor-associated cardiovascular side effects. Recent studies and clinical trials have suggested that treatment with penehyclidine hydrochloride may also possess good effects in the treatment of lung injury. The mechanism responsible for this effect has yet to be determined; however, one possibility is that they might do so by a direct effect on pulmonary vascular endothelium...
May 15, 2018: Inflammation
https://www.readbyqxmd.com/read/29764588/-correlations-between-ape1-ref-1-icam-1-and-il-17a-levels-in-serum-and-radiation-pneumonitis-for-local-advanced-non-small-cell-lung-cancer-patients
#12
Leiming Guo, Gaofeng Ding, Wencai Xu, Hong Ge, Yue Jiang, Yufei Lu
BACKGROUND: The main manifestations of radiation pneumonitis are injury of alveolar epithelial and endothelial cells, abnormal expression of cytokines, abnormal proliferation of fibroblasts and synthesis of fibrous matrix. The occurrence of radiation pneumonitis is associated with multiplecytokine level abnormality. These cytokines can also be used as bio-markers to predict the occurrence of radiation pneumonitis. This study was to evaluate the correlation between the change of apurinic/apyrimidinic endonuclease 1/redox factor-1 (Ape1/Ref-1), intercellular adhesion molecules 1 (ICAM-1) and interleukin-17A (IL-17A) before and after radiotherapy and radiation pneumonitis for local advanced non-small cell lung cancer (NSCLC) patients with concurrent chemoradiotherapy...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29763906/the-therapeutic-effect-of-icam-1-overexpressing-mesenchymal-stem-cells-on-acute-graft-versus-host-disease
#13
Bo Tang, Xue Li, Yuanlin Liu, Xiuhui Chen, Ximei Li, Yanan Chu, Heng Zhu, Weijiang Liu, Fenfen Xu, Fan Zhou, Yi Zhang
BACKGROUND/AIMS: Mesenchymal stem cells (MSCs) do not readily migrate to appropriate sites, and this creates a major obstacle for their use in the treatment of graft-versus-host disease (GVHD). Intercellular adhesion molecule-1 (ICAM-1) can guide the homing of various immune cells to the proper anatomical location within secondary lymphoid organs (SLOs), which are the major niches for generating immune responses or tolerance. MSCs rarely migrate to SLOs after intravenous infusion, and are constitutively low expression of ICAM-1...
May 7, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29763840/the-risk-of-neurodevelopmental-disorders-at-age-10-years-associated-with-blood-concentrations-of-interleukins-4-and-10-during-the-first-postnatal-month-of-children-born-extremely-preterm
#14
Alan Leviton, Robert M Joseph, Elizabeth N Allred, Raina N Fichorova, T Michael O'Shea, Karl K C Kuban, Olaf Dammann
BACKGROUND: Interleukin (IL)-4 and IL-10 are viewed mainly as anti-inflammatory cytokines. Yet, high concentrations have also been associated with inflammation-related diseases in newborns. METHODS: We measured the concentrations of IL-4 and IL-10, as well as IL-8 and ICAM-1 in blood specimens collected on postnatal day 21 (N = 555), day 28 (N = 521), and both days 21 and 28 (N = 449) from children born extremely preterm (EP) (<28 weeks gestation) who at age 10 years had a DAS-II IQ Z-score > -2 (which approximates a score of >70) and the following assessments, CCC-2, and CSI-4, DAS-II, NEPSY-II, OWLS-II, SCQ, and WIAT-III...
May 12, 2018: Cytokine
https://www.readbyqxmd.com/read/29762455/the-anti-inflammatory-effect-of-hydrogen-on-lung-transplantation-model-of-pulmonary-microvascular-endothelial-cells-during-cold-storage-period
#15
Guangchao Zhang, Zhe Li, Chao Meng, Jiyu Kang, Mengdi Zhang, Liangjuan Ma, Huacheng Zhou
BACKGROUND: Lung ischemia-reperfusion injury (LIRI) remains an important factor for the early mortality of lung transplantations. Hydrogen (H2) can attenuate lung injury and improve lung function in animal experiments. In previous studies, pulmonary microvascular endothelial cells (PMVECs) were used to simulate LIRI. We hypothesized that H2 can alleviate inflammatory injury in a PMVECs lung transplantation model in the cold ischemia phase. METHODS: PMVECs were divided into 4 groups: Blank, Control, Oxygen (O2), and Hydrogen (H2)...
May 14, 2018: Transplantation
https://www.readbyqxmd.com/read/29760703/the-increased-endogenous-sulfur-dioxide-acts-as-a-compensatory-mechanism-for-the-downregulated-endogenous-hydrogen-sulfide-pathway-in-the-endothelial-cell-inflammation
#16
Da Zhang, Xiuli Wang, Xiaoyu Tian, Lulu Zhang, Guosheng Yang, Yinghong Tao, Chen Liang, Kun Li, Xiaoqi Yu, Xinjing Tang, Chaoshu Tang, Jing Zhou, Wei Kong, Junbao Du, Yaqian Huang, Hongfang Jin
Endogenous hydrogen sulfide (H2 S) and sulfur dioxide (SO2 ) are regarded as important regulators to control endothelial cell function and protect endothelial cell against various injuries. In our present study, we aimed to investigate the effect of endogenous H2 S on the SO2 generation in the endothelial cells and explore its significance in the endothelial inflammation in vitro and in vivo . The human umbilical vein endothelial cell (HUVEC) line (EA.hy926), primary HUVECs, primary rat pulmonary artery endothelial cells (RPAECs), and purified aspartate aminotransferase (AAT) protein from pig heart were used for in vitro experiments...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29758489/fisetin-inhibits-the-generation-of-inflammatory-mediators-in-interleukin-1%C3%AE-induced-human-lung-epithelial-cells-by-suppressing-the-nf-%C3%AE%C2%BAb-and-erk1-2-pathways
#17
Hui-Ling Peng, Wen-Chung Huang, Shu-Chen Cheng, Chian-Jiun Liou
Fisetin, a flavone that can be isolated from fruits and vegetables, has anti-tumor and anti-oxidative properties and ameliorates airway hyperresponsiveness in asthmatic mice. This study investigated whether fisetin can suppress the expression of inflammatory mediators and intercellular adhesion molecule 1 (ICAM-1) in A549 human lung epithelial cells that were stimulated with interleukin-1β (IL-1β) to induce inflammatory responses. A549 cells were treated with fisetin (3-30 μM) and then with IL-1β. Fisetin significantly inhibited COX-2 expression and reduced prostaglandin E2 production, and it suppressed the levels of IL-8, CCL5, monocyte chemotactic protein 1, tumor necrosis factor α, and IL-6...
May 11, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29757363/targeting-endothelial-ligands-icam-1-alicaforsen-madcam-1
#18
Walter Reinisch, Kenneth Hung, Mina Hassan-Zahraee, Fabio Cataldi
The specific blockade of the endothelial ligands intercellular adhesion molecule-1 (ICAM-1) and mucosal addressin cell adhesion molecule (MAdCAM) involved in leukocyte recruitment to the site of inflammation as therapeutic targets in inflammatory bowel disease (IBD) has been recognized from their overexpression in the inflamed mucosa and their successful intervention in preclinical animal models. Interventions to target ICAM-1 in human IBD are confined to the ICAM-1 anti-sense oligonucleotide alicaforsen. Whereas results with parenteral formulations of alicaforsen in Crohn's disease were largely negative, efficacy signals derived from studies with an enema formulation in ulcerative and pouchitis are promising and having lead to a FDA Fast-Track designation for the latter...
May 11, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29755641/ischemic-preconditioning-attenuates-acute-lung-injury-after-partial-liver-transplantation
#19
Qinlong Liu, Hasibur Rehman, Yasodha Krishnasamy, John J Lemasters, Zhi Zhong
Pulmonary complications frequently occur after liver transplantation and are often life-threatening. Thus, we investigated whether hepatic ischemic preconditioning (IP) attenuates acute lung injury (ALI) after small-for-size liver transplantation. Rat livers were explanted after 9-min ischemia plus 5-min reperfusion, reduced to 50% of original size ex vivo , and implanted into recipients with approximately twice the donor body weight, resulting in quarter-size liver grafts (QSG). After QSG transplantation, hepatic Toll-like receptor 4 (TLR4) and tumor necrosis factor-α (TNFα ) expression increased markedly and high mobility group box-1 (HMGB1), an endogenous damage-associated molecular pattern molecule (DAMP), was released from QSG into the blood...
2018: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/29755616/histological-and-immunological-characteristics-of-the-junctional-epithelium
#20
REVIEW
Masanori Nakamura
The continuity of epithelial tissue is collapsed by tooth eruption. The junctional epithelium (JE) is attached to the tooth surface by hemidesmosomes, which constitutes the front-line defense against periodontal bacterial infection. JE constitutively expresses intercellular adhesion molecule-1 (ICAM-1), and neutrophils and lymphocytes penetrate into JE via interaction between ICAM-1 and LFA-1 expressed on the surface of these migrating cells. JE also expresses cytokines and chemokines. These functions of JE are maintained even in germ-free condition...
May 2018: Japanese Dental Science Review
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