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L-selectin

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https://www.readbyqxmd.com/read/29656594/immune-imbalance-of-global-gene-expression-and-cytokine-chemokine-and-selectin-levels-in-the-brains-of-offspring-with-social-deficits-via-maternal-immune-activation
#1
Pei-Tan Hsueh, Hsi-Hsun Lin, Hsuan-Han Wang, Chiu-Lin Liu, Wei-Fen Ni, Jong-Kang Liu, Hsin-Hou Chang, Der-Shan Sun, Yao-Shen Chen, Ya-Lei Chen
The murine maternal immune activation (MIA) offspring model enables longitudinal studies to explore aberrant social behaviors similar to those observed in humans. High levels of cytokines, chemokines and cell adhesion molecules (CAM) have been found in the plasma and/or brains of psychiatric patients. We hypothesized that up-regulation of the systemic or brain immune response has an augmenting effect by potentially increasing the interplay between the neuronal and immune systems during the growth of the MIA offspring...
April 15, 2018: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29652553/mahonia-oiwakensis-extract-and-its-bioactive-compounds-exert-anti-inflammatory-activities-and-vegf-production-through-m2-macrophagic-polarization-and-stat6-activation
#2
Yea-Chen Liu, Yu-Ying Hsiao, Kuo-Lung Ku, Hui-Fen Liao, Wei-Chun Chao
Macrophages play an indispensable role in the host immune defense. Macrophages can undergo polarization into classically (M1) and alternatively (M2) activated macrophages. M1 macrophages activate immune and inflammatory response, while M2 macrophages are involved in tissue remodeling. Mahonia oiwakensis (Mo) is a herbal medicine in Asia used for its anti-inflammatory and analgesic properties; however, the mechanism is unclear. This study analyzed the effect of Mo extracts and its effects on the polarization of both macrophage RAW264...
April 13, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29615799/idelalisib-impairs-trem-1-mediated-neutrophil-inflammatory-responses
#3
Astrid Alflen, Nicole Stadler, Pamela Aranda Lopez, Daniel Teschner, Matthias Theobald, Georg Heß, Markus P Radsak
Triggering receptor expressed on myeloid cells (TREM)-1 on polymorphonuclear neutrophils (PMN) regulates innate immune activation in infectious and non-infectious conditions. TREM-1 ligation activates phosphatidyl-inositol 3 kinase (PI3K) triggering all neutrophil effector functions. As idelalisib is a PI3K inhibitor in clinical use for the treatment of non-Hodgkin lymphomas, we asked whether this inhibitor affects PMN functionalities. We analyzed PMNs from healthy donors or lymphoma patients for oxidative burst, phagocytosis, activation markers and IL-8 release upon TREM-1 or TLR ligation ex vivo...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29601599/vcam-1-expression-is-upregulated-by-cd34-cd133-stem-cells-derived-from-septic-patients
#4
Christian Patry, Christoph Remmé, Christian Betzen, Burkhard Tönshoff, Benito A Yard, Grietje Beck, Neysan Rafat
CD34+/CD133+- cells are a bone marrow derived stem cell population, which presumably contain vascular progenitor cells and are associated with improved vascular repair. In this study, we investigated whether the adhesion molecules ICAM-1 (intercellular adhesion molecule-1), VCAM-1 (vascular adhesion molecule-1), E-selectin und L-selectin, which are involved in homing of vascular stem cells, are upregulated by CD34+/CD133+-stem cells from septic patients and would be associated with improved clinical outcome...
2018: PloS One
https://www.readbyqxmd.com/read/29575636/interactions-of-fullerene-polyglycerol-sulfates-at-viral-and-cellular-interfaces
#5
Ievgen Donskyi, Moritz Drüke, Kim Silberreis, Daniel Lauster, Kai Ludwig, Christian Kühne, Wolfgang Unger, Christoph Böttcher, Andreas Herrmann, Jens Dernedde, Mohsen Adeli, Rainer Haag
Understanding the mechanism of interactions of nanomaterials at biointerfaces is a crucial issue to develop new antimicrobial vectors. In this work, a series of water-soluble fullerene-polyglycerol sulfates (FPS) with different fullerene/polymer weight ratios and varying numbers of polyglycerol sulfate branches are synthesized, characterized, and their interactions with two distinct surfaces displaying proteins involved in target cell recognition are investigated. The combination of polyanionic branches with a solvent exposed variable hydrophobic core in FPS proves to be superior to analogs possessing only one of these features in preventing interaction of vesicular stomatitis virus coat glycoprotein (VSV-G) with baby hamster kidney cells serving as a model of host cell...
March 25, 2018: Small
https://www.readbyqxmd.com/read/29557229/short-course-of-simvastatin-has-no-effect-on-markers-of-endothelial-activation-in-normolipidemic-patients-with-systemic-sclerosis
#6
Przemyslaw J Kotyla
Objective Statins, a class of 3-hydroxy-3 methyl-glutaryl-coenzyme A reductase inhibitors, are widely used for the treatment of atherosclerosis. Less is known about the role of statins in the treatment of vascular complication in systemic sclerosis (SSc). We therefore performed a short-term interventional study with simvastatin in patients with the diffuse variant of SSc and normal lipid profiles. Methods Twenty-five patients with diffuse SSc were enrolled and received simvastatin at a daily dose of 20 mg for 28 days...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29554266/integration-of-molecules-to-construct-the-processes-of-conceptus-implantation-to-the-maternal-endometrium
#7
K Imakawa, R Bai, K Kusama
During the peri-implantation period, ruminant conceptuses go through rapid elongation, followed by their attachment to the uterine endometrial epithelial cells, during which interferon-tau (IFNT), a trophectodermal cytokine required for the process of maternal recognition of pregnancy, is expressed in a temporal and spatial manner. On d 22 (d 0 = day of estrus), 2 to 3 d after the initiation of bovine conceptus attachment to the uterine epithelium, when IFNT production begins to subside, the expression of molecules related to epithelial-mesenchymal transition, zinc finger E-box binding homeobox 1, snail family transcriptional repressor 2, N-cadherin and vimentin was found in the trophectoderm...
March 15, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29533506/a-field-applicable-method-for-flow-cytometric-analysis-of-granulocyte-activation-cryopreservation-of-fixed-granulocytes
#8
Karin de Ruiter, Selma van Staveren, Bart Hilvering, Edward Knol, Nienke Vrisekoop, Leo Koenderman, Maria Yazdanbakhsh
Upon activation granulocytes upregulate several adhesion molecules (CD11b) and granule proteins (CD35, CD66b) and shed surface l-selectin (CD62L). These changes in expression, as assessed by flow cytometry, can be used as markers for activation. Whereas these markers are usually studied in fresh blood samples, a new method is required when samples are collected at a field site with no direct access to a flow cytometer. Therefore, we developed and tested a field-applicable method in which fixed leukocytes were cryopreserved...
March 13, 2018: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/29525428/circulating-pathogen-specific-plasmablasts-in-female-patients-with-upper-genital-tract-infection
#9
Nina V Palkola, Sari H Pakkanen, Oskari Heikinheimo, Jussi M Kantele, Anu Kantele
Mucosal antibodies constitute the first line of adaptive immune defence against invaders in the female genital tract (FGT), yet the sequence of events leading to their production is surprisingly poorly characterized. We explored the induction of pathogen-specific antibody-secreting cells (ASC) as a response to an acute infection in the upper FGT. We recruited 12 patients undergoing surgery due to an upper FGT infection (7/12 blood culture positive, 5/12 negative) and six healthy controls. Pathogens were sampled during surgery and PBMC collected in the acute phase of the disease (days 7-10)...
March 2, 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29472232/genome-wide-association-and-functional-studies-identify-scml4-and-thsd7a-as-novel-susceptibility-genes-for-coronary-artery-disease
#10
Yang Li, Dao Wen Wang, Yundai Chen, Can Chen, Jian Guo, Shu Zhang, Zhijun Sun, Hu Ding, Yan Yao, Lei Zhou, Ke Xu, Chun Song, Fan Yang, Bin Zhao, Han Yan, Wen-Jing Wang, Chong Wu, Xiangfeng Lu, Xueli Yang, Jie Dong, Guyan Zheng, Shuhan Tian, Yanjun Cui, Lijuan Jin, Gangqiong Liu, Hanbin Cui, Shenghuang Wang, Feng Jiang, Changhua Wang, Jeanette Erdmann, Linyao Zeng, Shian Huang, Jianfeng Zhong, Yuehua Ma, Wenjiang Chen, Jianli Sun, Wei Lei, Shenghan Chen, Shaoqi Rao, Dongfeng Gu, Heribert Schunkert, Xiao-Li Tian
OBJECTIVE: The genetic contribution to coronary artery disease (CAD) remains largely unclear. We combined genetic screening with functional characterizations to identify novel loci and candidate genes for CAD. APPROACH AND RESULTS: We performed genome-wide screening followed by multicenter validation in 8 cohorts consisting of 21 828 participants of Han ethnicity and identified 3 novel intragenic SNPs, rs9486729 ( SCML4 ; odds ratio, 1.25; 95% CI, 1.17-1.34; P =3...
February 22, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29430726/comparison-of-l-selectin-blood-level-and-gene-polymorphism-in-tuberculosis-patients-with-healthy-individuals
#11
Peyman Eini, Maria Shirvani, Mehrdad Hajilooi, Farzaneh Esna-Ashari
BACKGROUND: The inflammatory response to Mycobacterium tuberculosis bacilli influences tuberculosis (TB) progression. In this study, we aimed to identify the Phe206Leu polymorphism and serum L-selectin level in TB patients, compared to healthy individuals. METHODS: Ninety patients with a diagnosis of TB and 90 healthy controls were selected in this study. The serum L-selectin level was determined, using ELISA. L-selectin polymorphism was also evaluated using PCR...
February 12, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29407321/protective-effect-of-a-novel-technique-for-liver-transplantation-in-the-rat
#12
B Qu, F Yu, G-N Sheng, W Zhang, Y-M Zhang, Y-L Deng, Y Shi, Z-Y Shen
The rat orthotopic liver transplantation model with extremely short anhepatic phase was established to study its protective effect on the recipients and graft. One hundred fifty adult male Wistar rats were randomly divided into three groups: group A (n = 30), using magnetic rings for the suprahepatic vena cava reconstruction; group B (n = 30), using 7/0 Prolene sutures for suprahepatic vena cava running anastomosis as control; and a sham-operated group (n = 30) as a blank control group. The changes in liver enzyme, serum creatinine, endotoxin, and cytokine levels and histopathology were recorded...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29397822/-itraq-coupled-with-2dlc-ms-ms-to-screen-and-identify-speci-fic-bio-markers-of-t-cell-acute-lymphoblastic-leukemia
#13
Wen-Li Zuo, Run-Hong Yu, Jing-Yu Zhang, Mei Deng, Yu-Feng Liu
OBJECTIVE: To screen and identify potential biomarkers specific for T-cell acute lymphoblastic leukemia (T-ALL). METHODS: Sera were collected from 20 newly diagnosed B-cell acute lymphoblastic leukemia (B-ALL) patients and 20 T-ALL patients. Proteins were extracted, purified and digested with trypsin. All specimens were analyzed by isobaric tags for relative and absolute quantification (iTRAQ) and two-dimensional liquid chromatography-tandem mass spectrometry (2DLC-MS/MS) in a data-dependent mode...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29385837/verification-of-a-proteomic-biomarker-panel-to-diagnose-minor-stroke-and-transient-ischaemic-attack-phase-1-of-spectra-a-large-scale-translational-study
#14
Andrew M Penn, Maximilian B Bibok, Viera K Saly, Shelagh B Coutts, Mary L Lesperance, Robert F Balshaw, Kristine Votova, Nicole S Croteau, Anurag Trivedi, Angela M Jackson, Janka Hegedus, Evgenia Klourfeld, Amy Y X Yu, Charlotte Zerna, Christoph H Borchers
OBJECTIVE: To derive a plasma biomarker protein panel from a list of 141 candidate proteins which can differentiate transient ischaemic attack (TIA)/minor stroke from non-cerebrovascular ('mimic') conditions in emergency department (ED) settings. DESIGN: Prospective clinical study (#NCT03050099) with up to three timed blood draws no more than 36 hours following symptom onset. Plasma samples analysed by multiple reaction monitoring-mass spectrometry (MRM-MS). PARTICIPANTS: 545 participants suspected of TIA enrolled in the EDs of two urban medical centres...
February 1, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29378967/neutrophils-recruited-through-high-endothelial-venules-of-the-lymph-nodes-via-pnad-intercept-disseminating-staphylococcus-aureus
#15
Ania Bogoslowski, Eugene C Butcher, Paul Kubes
Staphylococcus aureus is a skin- and respiratory tract-colonizing bacterium and is the leading cause of community-acquired skin infections. Dissemination of these bacteria into systemic circulation causes bacteremia, which has a high mortality rate. Therefore, understanding the immunologic barriers that prevent dissemination is critical to developing novel treatments. In this study, we demonstrate that an S. aureus breach across skin leads to some migration of the pathogen to the draining lymph node, but no further...
January 29, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29362381/gene-expression-of-human-endometrial-l-selectin-ligand-in-relation-to-the-phases-of-the-natural-menstrual-cycle
#16
Tsung-Hsuan Lai, Fung-Wei Chang, Jun-Jie Lin, Qing-Dong Ling
This study investigates peptide components of L-selectin ligand (LSL) and their gene expressions in human endometrium during the natural menstrual cycle. We recruited 41 endometrial samples from reproductive-aged women with leiomyoma and undergoing hysterectomy and 11 endometrial samples from menopausal women as controls. Immunohistochemistry revealed strong MECA-79 expression from the early through the mid-secretory phase and low expression in menopausal endometrium. Five peptide components of LSL were detected in reproductive and menopausal endometrium by one-step quantitative RT-PCR: podocalyxin, endomucin, nepmucin, GlyCAM-1, and CD34...
January 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29353325/a-head-to-tail-view-of-l-selectin-and-its-impact-on-neutrophil-behaviour
#17
REVIEW
Aleksandar Ivetic
L-selectin is a type I transmembrane cell adhesion molecule expressed on most circulating leukocytes, including neutrophils. Engagement of L-selectin with endothelial-derived ligands initiates neutrophil tethering and rolling behaviour along luminal walls of post-capillary venules, constituting the first step of the multi-step adhesion cascade. There is a large body of evidence to suggest that signalling downstream of L-selectin can influence neutrophil behaviour: adhesion, migration and priming. This review will cover aspects of L-selectin form and function and introduce the "triad of L-selectin regulation", highlighting the inextricable links between adhesion, signalling and ectodomain shedding and also highlighting the cytosolic proteins that interconnect them...
March 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29350564/role-of-madcam-1-expressing-high-endothelial-venule-like-vessels-in-colitis-induced-in-mice-lacking-sulfotransferases-catalyzing-l-selectin-ligand-biosynthesis
#18
Shulin Low, Jotaro Hirakawa, Hitomi Hoshino, Kenji Uchimura, Hiroto Kawashima, Motohiro Kobayashi
Ulcerative colitis (UC) is a chronic inflammatory disease histologically characterized by diffuse mononuclear cell infiltrates in colonic mucosa. These inflammatory cells are considered to be recruited via high endothelial venule (HEV)-like vessels displaying mucosal addressin cell adhesion molecule 1 (MAdCAM-1), the ligand for α4β7 integrin, and/or peripheral lymph node addressin (PNAd), an L-selectin ligand. 6- O-sulfation of N-acetylglucosamine in the carbohydrate moiety of PNAd is catalyzed exclusively by N-acetylglucosamine-6- O-sulfotransferase 1 (GlcNAc6ST-1) and GlcNAc6ST-2...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29330473/endothelial-heparan-sulfate-deficiency-reduces-inflammation-and-fibrosis-in-murine-diabetic-nephropathy
#19
Ditmer T Talsma, Kirankumar Katta, Marieke A B Ettema, Berna Kel, Marion Kusche-Gullberg, Moh R Daha, Coen A Stegeman, Jacob van den Born, Lianchun Wang
Inflammation plays a vital role in the development of diabetic nephropathy, but the underlying regulatory mechanisms are only partially understood. Our previous studies demonstrated that, during acute inflammation, endothelial heparan sulfate (HS) contributes to the adhesion and transendothelial migration of leukocytes into perivascular tissues by direct interaction with L-selectin and the presentation of bound chemokines. In the current study, we aimed to assess the role of endothelial HS on chronic renal inflammation and fibrosis in a diabetic nephropathy mouse model...
January 12, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29321630/engineered-mesenchymal-stem-cell-sheets-patches-prevents-postoperative-pancreatic-leakage-in-a-rat-model
#20
Seong-Ryong Kim, Hye-Jin Yi, Yu Na Lee, Ji Yoon Park, Robert M Hoffman, Teruo Okano, In Kyong Shim, Song Cheol Kim
Post-operative pancreatic fistula (POPF) following pancreatic resection is a life-threatening surgical complication. Cell sheets were prepared and harvested using temperature-responsive culture dishes and transplanted as patches to seal POPF. Two different mesenchymal stem cell (MSC) sheets were compared in terms of the preventative ability for pancreatic leakage in a rat model. Both rat adipose-derived stem cell (rADSC) and bone marrow-derived stem cell (rBMSC) sheets were transplanted. Those rADSC and rBMSC sheets are created without enzymes and thus maintained their cell-cell junctions and adhesion proteins with intact fibronectin on the basal side, as well as characteristics of MSCs...
January 10, 2018: Scientific Reports
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