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Complement receptor 3

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https://www.readbyqxmd.com/read/29683202/placental-inflammation-in-pre-eclampsia-by-nod-like-receptor-protein-nlrp-3-inflammasome-activation-in-trophoblasts
#1
G S Stødle, G B Silva, L H Tangerås, L M Gierman, I Nervik, U E Dahlberg, C Sun, M H Aune, L C V Thomsen, L Bjørge, A-C Iversen
Pre-eclampsia is associated with increased levels of cholesterol and uric acid and an inflamed placenta expressing danger-sensing pattern recognition receptors (PRRs). Crystalline cholesterol and uric acid activate the PRR Nod-like receptor protein (NLRP)3 inflammasome to release interleukin (IL)-1β and result in vigorous inflammation. We aimed to characterize crystal-induced NLRP3 activation in placental inflammation and examine its role in pre-eclampsia. We confirmed that serum total cholesterol and uric acid were elevated in pre-eclamptic compared to healthy pregnancies and correlated positively to high sensitivity C-reactive protein (hsCRP) and the pre-eclampsia marker soluble fms-like tyrosine kinase-1 (sFlt-1)...
April 23, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29679800/synthetic-investigation-of-binary-ternary-cr-iii-hydroxycarboxylic-acid-aromatic-chelator-systems-structure-specific-influence-on-adipogenic-biomarkers-linked-to-insulin-mimesis
#2
O Tsave, C Gabriel, M Kafantari, M Yavropoulou, J G Yovos, C P Raptopoulou, V Psycharis, A Terzis, C Mateescu, A Salifoglou
In an attempt to understand the aqueous interactions of Cr(III) with low-molecular mass physiological ligands and examine its role as an adipogenic metallodrug agent in Diabetes mellitus II, the pH-specific synthesis in the binary-ternary Cr(III)-(HA = hydroxycarboxylic acid)-(N,N)-aromatic chelator (AC) (HA = 2-hydroxyethyl iminodiacetic acid/heidaH2 , quinic acid; AC = 1,10-phenanthroline/phen) systems was pursued, leading to four new crystalline compounds. All materials were characterized by elemental analysis, UV-Visible, FT-IR, and ESI-MS spectroscopy, cyclic voltammetry, and X-Ray crystallography...
February 10, 2018: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29673745/-acquired-c1-esterase-inhibitor-deficiency-via-bradykinin-mediated-angioedema-four-cases
#3
C Jacquin-Porretaz, F Castelain, E Daguindau, E Seilles, C Nardin, F Aubin, F Pelletier
BACKGROUND: Acquired C1-esterase inhibitor (C1-INH) deficiency angioedema (C1-INH-AAE) is a form of bradykinin-mediated angioedema. This rare disorder is due to acquired consumption of C1-INH, hyperactivation of the classic pathway of human complement, and potentially fatal recurrent angioedema symptoms. Clinical symptoms of C1-INH-AAE are very similar to those of hereditary angioedema (HAE) but usually appear after the fourth decade of life and induce abdominal pain less frequently. Laboratory tests are essential in establishing the diagnosis with low levels or abnormal structure and function of C1-INH...
April 16, 2018: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29623939/cell-cycle-and-complement-inhibitors-may-be-specific-for-treatment-of-spinal-cord-injury-in-aged-and-young-mice-transcriptomic-analyses
#4
Ming Hao, Xin-Ran Ji, Hua Chen, Wei Zhang, Li-Cheng Zhang, Li-Hai Zhang, Pei-Fu Tang, Ning Lu
Previous studies have reported age-specific pathological and functional outcomes in young and aged patients suffering spinal cord injury, but the mechanisms remain poorly understood. In this study, we examined mice with spinal cord injury. Gene expression profiles from the Gene Expression Omnibus database (accession number GSE93561) were used, including spinal cord samples from 3 young injured mice (2-3-months old, induced by Impactor at Th9 level) and 3 control mice (2-3-months old, no treatment), as well as 2 aged injured mice (15-18-months old, induced by Impactor at Th9 level) and 2 control mice (15-18-months old, no treatment)...
March 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29620631/pediatric-hyperimmunoglobulin-e-syndrome-a-case-series-of-4-children-in-china
#5
Huifeng Fan, Li Huang, Diyuan Yang, Yunting Lin, Gen Lu, Yaping Xie, Jialu Yu, Dongwei Zhang
Hyperimmunoglobulin E syndromes (HIES) are rare primary immunodeficiency diseases characterized by markedly elevated serum immunoglobulin (Ig) E, recurrent pneumonia, and chronic eczema. To date, information about pediatric HIES is limited. We aimed to evaluate the spectrum of clinical and immunological features in pediatric patients with HIES in China.We retrospectively reviewed the cases of 4 pediatric patients with HIES followed at the Guangzhou Women and Children's Medical Center from May 2013 to September 2017...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29588602/upregulated-long-non-coding-rnas-demonstrate-promising-efficacy-for-breast-cancer-detection-a-meta-analysis
#6
Guozheng Yu, Wei Zhang, Linyan Zhu, Lin Xia
Purpose: Focusing on the latest literature, dysregulated long non-coding RNAs (lncRNAs) have been extensively explored in breast cancer (BC) research. The purpose of this meta-analysis is to synthesize the evidence on the diagnostic performance of abnormally expressed lncRNAs for BC. Materials and methods: Relevant studies were searched in multiple electronic databases. The Quality Assessment of Diagnosis Accuracy Studies II criteria were applied to assess the quality of included studies...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29572872/differential-transcriptome-analysis-of-zebrafish-danio-rerio-larvae-challenged-by-vibrio-parahaemolyticus
#7
Qinghua Zhang, Ce Ji, Jianfeng Ren, Qiuyue Zhang, Xuehong Dong, Yao Zu, Liang Jia, Weiming Li
Zebrafish embryo and larva represent a useful in vivo model for identification of host innate immune responses to bacterial infection. Vibrio parahaemolyticus is a typical zoonotic pathogen worldwide that causes acute gastroenteritis in humans and vibriosis in fishes. However, the mechanism of the innate immune response in the zebrafish larvae infected by V. parahaemolyticus has not been clear. We analysed the transcriptomic profile of 3 days post-fertilization (dpf) zebrafish larvae immersed in V. parahaemolyticus 13 (Vp13) strain suspension for 2 hr...
March 23, 2018: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29568527/leukadherin-1-ameliorates-endothelial-barrier-damage-mediated-by-neutrophils-from-critically-ill-patients
#8
Catherine M Dickinson, Brian W LeBlanc, Muhammad M Edhi, Daithi S Heffernan, Mohd Hafeez Faridi, Vineet Gupta, William G Cioffi, Xian O'Brien, Jonathan S Reichner
Background: Multi-organ failure occurs during critical illness and is mediated in part by destructive neutrophil-to-endothelial interactions. The β2 integrin receptor, CR3 (complement receptor 3; Mac-1; CD11b/CD18), which binds endothelial intercellular adhesion molecule-1 (ICAM-1), plays a key role in promoting the adhesion of activated neutrophils to inflamed endothelia which, when prolonged and excessive, can cause vascular damage. Leukadherin-1 (LA-1) is a small molecule allosteric activator of CR3 and has been shown to promote adhesion of blood neutrophils to inflamed endothelium and restrict tissue infiltration...
2018: Journal of Intensive Care
https://www.readbyqxmd.com/read/29568374/an-open-label-trial-of-folate-receptor-targeted-intraoperative-molecular-imaging-to-localize-pulmonary-squamous-cell-carcinomas
#9
Jarrod D Predina, Andrew D Newton, Leilei Xia, Christopher Corbett, Courtney Connolly, Michael Shin, Lydia Frezel Sulyok, Leslie Litzky, Charuhas Deshpande, Shuming Nie, Sumith A Kularatne, Philip S Low, Sunil Singhal
Background: Clinical applicability of folate receptor-targeted intraoperative molecular imaging (FR-IMI) has been established for surgically resectable pulmonary adenocarcinoma. A role for FR-IMI in other lung cancer histologies has not been studied. In this study, we evaluate feasibility of FR-IMI in patients undergoing pulmonary resection for squamous cell carcinomas (SCCs). Methods: In a human clinical trial (NCT02602119), twelve subjects with pulmonary SCCs underwent FR-IMI with a near-infrared contrast agent that targets the folate receptor-α (FRα), OTL38...
March 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29561066/safety-immunogenicity-pharmacokinetics-and-efficacy-of-degradation-of-anti-hla-antibodies-by-ides-imlifidase-in-chronic-kidney-disease-patients
#10
Tomas Lorant, Mats Bengtsson, Torsten Eich, Britt-Marie Eriksson, Lena Winstedt, Sofia Järnum, Yvonne Stenberg, Anna-Karin Robertson, Kristina Mosén, Lars Björck, Lars Bäckman, Erik Larsson, Kathryn Wood, Gunnar Tufveson, Christian Kjellman
Safety, immunogenicity, pharmacokinetics and efficacy of the immunoglobulin G-degrading enzyme of Streptococcus pyogenes (IdeS, Imlifidase) was assessed in a single centre, open label ascending dose study in highly sensitised chronic kidney disease patients. Eight patients with cytotoxic panel-reactive antibodies (median cytotoxic PRA of 64%) at enrolment received 1 or 2 intravenous infusions of IdeS on consecutive days (0.12 mg/kg body weight x2 (n=3); 0.25 mg/kg x1 (n=3) or 0.25 mg/kg x2 (n=2)). IgG degradation was observed in all subjects after IdeS treatment, with <1% plasma IgG remaining within 48 hours and remaining low up to 7 days...
March 21, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29559654/complement-c1q-stimulates-the-progression-of-hepatocellular-tumor-through-the-activation-of-discoidin-domain-receptor-1
#11
Ji-Hyun Lee, Barun Poudel, Hyeon-Hui Ki, Sarmila Nepali, Young-Mi Lee, Jeon-Soo Shin, Dae-Ki Kim
C1q is known to perform several functions in addition to the role it plays in complement activation. C1q contains a collagen-like portion and DDR1 (discoidin domain receptor 1) is a well-known collagen receptor. Accordingly, we hypothesized C1q might be a novel ligand of DDR1. This study shows for the first time C1q directly induces the activation and upregulation of DDR1, and that this leads to enhanced migration and invasion of HepG2 cells. In addition, C1q was found to induce the activations of mitogen-activated protein kinases (MAPKs) and phosphoinositide 3-kinase (PI3K)/Akt signaling, and to increase the expressions of matrix metalloproteinases (MMP2 and 9)...
March 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29550583/yawning-elicited-by-intravenous-ethanol-in-rhesus-monkeys-with-experience-self-administering-cocaine-and-ethanol-involvement-of-dopamine-d-3-receptors
#12
Paul W Czoty, William S John, Amy Hauck Newman, Michael A Nader
Characterization of the effects of long-term alcohol consumption on the brain would be aided by the development of behavioral assays that are relatively easy to implement in animal models of alcohol use disorders. Assessing unconditioned behaviors, such as drug-elicited yawning in models that permit long-term alcohol ingestion, may be a valuable complement to more invasive and costly procedures. The present studies investigated previous unexpected findings of ethanol-induced yawning in nonhuman primates. Subjects were adult male rhesus monkeys (n = 8), all of which had experience self-administering intravenous cocaine for several years...
October 17, 2017: Alcohol
https://www.readbyqxmd.com/read/29543918/chlamydia-trachomatis-inclusion-membrane-protein-mrca-interacts-with-the-inositol-1-4-5-trisphosphate-receptor-type-3-itpr3-to-regulate-extrusion-formation
#13
Phu Hai Nguyen, Erika I Lutter, Ted Hackstadt
Chlamydia trachomatis is an obligate intracellular bacterium that replicates within a vacuole termed an inclusion. At the end of their intracellular developmental cycle, chlamydiae are released either by lysis of the host cell or extrusion of the intact inclusion. The inclusion membrane is extensively modified by the insertion of type III secreted inclusion membrane proteins, Incs, which contribute to inclusion membrane structure and facilitate host-pathogen interactions. An interaction was identified between the inclusion membrane protein, MrcA, and the Ca2+ channel inositol-1,4,5-trisphosphate receptor, type 3 (ITPR3)...
March 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29541735/quercetin-3-o-%C3%AE-l-arabinopyranoside-protects-against-retinal-cell-death-via-blue-light-induced-damage-in-human-rpe-cells-and-balb-c-mice
#14
Jun Kim, Hong Lan Jin, Dae Sik Jang, Kwang Won Jeong, Se-Young Choung
Age-related macular degeneration (AMD) is among the increasing number of diseases causing irreversible blindness in the elderly. Dry AMD is characterized by the accumulation of lipofuscin in retinal pigment epithelium (RPE) cells. N-Retinylidene-N-retinylethanolamine (A2E), a component of lipofuscin, is oxidized to oxo-A2E under blue light illumination, leading to retinal cell death. The aim of this study was to investigate the protective effect and mechanism of quercetin-3-O-α-l-arabinopyranoside (QA) against blue light (BL)-induced damage in both RPE cells and mice models...
March 15, 2018: Food & Function
https://www.readbyqxmd.com/read/29536572/multiple-genetically-modified-gtko-hcd46-hla-e-h%C3%AE-2-mg-porcine-hearts-are-protected-from-complement-activation-and-natural-killer-cell-infiltration-during-ex-vivo-perfusion-with-human-blood
#15
Jan-Michael Abicht, Riccardo Sfriso, Bruno Reichart, Matthias Längin, Katja Gahle, Gisella L Puga Yung, Jörg D Seebach, Robert Rieben, David Ayares, Eckhard Wolf, Nikolai Klymiuk, Andrea Baehr, Alexander Kind, Tanja Mayr, Andreas Bauer
BACKGROUND: In pig-to-human xenotransplantation, early cellular rejection reactions are mediated by natural killer cells (NK cells). Human NK cells are inhibited by HLA-E via CD94/NKG2A receptors. To protect porcine grafts against human NK cell responses, transgenic GTKO pigs expressing hCD46 and HLA-E have been generated. The aim of this study was to test the effect of this genetic modification on xenogeneic, and in particular human NK cell response, using an ex vivo perfusion model of pig hearts with human blood...
March 14, 2018: Xenotransplantation
https://www.readbyqxmd.com/read/29536122/-principles-of-autoimmune-and-paraneoplastic-encephalitis
#16
REVIEW
C G Bien
The paraneoplastic and autoimmune encephalitides are now well-established entities. Detection of neural autoantibodies enables specific diagnoses, provides information on the underlying disease pathophysiology, immunological treatability and the likelihood of a tumor being the underlying cause. This is true for the "high ranking" neural antibodies that have been established in the context of circumscribed clinical images and in consideration of large control groups, have been found in the same way by other laboratories and they respond to immunotherapy...
March 13, 2018: Der Nervenarzt
https://www.readbyqxmd.com/read/29531132/serum-amyloid-p-and-igg-exhibit-differential-capabilities-in-the-activation-of-the-innate-immune-system-in-response-to-bacillus-anthracis-peptidoglycan
#17
Alanson W Girton, Narcis I Popescu, Ravi S Keshari, Tarea Burgett, Florea Lupu, K Mark Coggeshall
We showed that human IgG supported the response by human innate immune cells to peptidoglycan (PGN) from Bacillus anthracis and PGN-induced complement activation. However, other serum constituents have been shown to interact with peptidoglycan, including the IgG-like soluble pattern recognition receptor serum amyloid P (SAP). Here, we compared the ability of SAP and of IgG to support monocyte and complement responses to PGN. Utilizing in vitro methods, we demonstrate that SAP is superior to IgG in supporting monocyte production of cytokines in response PGN...
March 12, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29530830/transcriptome-analysis-of-olive-flounder-paralichthys-olivaceus-head-kidney-infected-with-moderate-and-high-virulent-strains-of-infectious-viral-hemorrhagic-septicaemia-virus-vhsv
#18
Jee Youn Hwang, Kesavan Markkandan, Mun Gyeong Kwon, Jung Soo Seo, Seung-Il Yoo, Seong Don Hwang, Maeng-Hyun Son, Junhyung Park
Olive flounder (Paralichthys olivaceus) is one of the most valuable marine aquatic species in South Korea and faces tremendous exposure to the viral hemorrhagic septicemia virus (VHSV). Given the growing importance of flounder, it is therefore essential to understand the host defense of P. olivaceus against VHSV infection, but studies on its immune mechanism are hindered by the lack of genomic resources. In this study, the P. olivaceus was infected with disease-causing VHSV isolates, ADC-VHS2012-11 and ADC-VHS2014-5 which showed moderate virulent (20% mortality) and high virulent (65% mortality), in order to investigate the effect of difference in pathogenicity in head kidney during 1, 3, 7 days of post-infection using Illumina sequencing...
March 9, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29527209/receptor-interacting-protein-kinases-1-and-3-and-mixed-lineage-kinase-domain-like-protein-are-activated-by-sublytic-complement-and-participate-in-complement-dependent-cytotoxicity
#19
Michal Lusthaus, Niv Mazkereth, Natalie Donin, Zvi Fishelson
The complement system participates in the pathogenesis of many diseases. Complement activation produces several active protein complexes and peptides, including the terminal C5b-9 complexes. It was reported that C5b-9 complexes insert into the plasma membrane and cause membrane perturbation, intracellular calcium surge, metabolic depletion, and osmotic lysis. Previously, we showed that complement-dependent cytotoxicity (CDC) is regulated by JNK and Bid. Here, we demonstrate that three mediators in TNFα-induced necroptosis (regulated necrosis), the receptor-interacting protein kinases, receptor-interacting protein kinase 1 (RIPK1) and receptor-interacting protein kinase 3 (RIPK3), and mixed-lineage kinase domain-like protein (MLKL), are activated by complement and contribute to CDC...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29525453/expression-of-complement-receptor-3-cr3-and-regulatory-protein-cd46-on-dendritic-cells-of-antiretroviral-na%C3%A3-ve-and-treated-hiv-1-infected-individuals-correlation-with-immune-activation-status
#20
Nitesh Mishra, Madhav Mohata, Heena Aggarwal, Omkar Chaudhary, Bimal Kumar Das, Sanjeev Sinha, Anjali Hazarika, Kalpana Luthra
During infection and budding, human immunodeficiency virus-1 (HIV-1) acquires regulators of Complement Activation (RCAs) along with the host cell membrane on the viral envelope. Activation of host complement system results in opsonization of virus by complement fragments, however the virus evades complement mediated lysis (CoML) by virtue of the RCAs on the viral envelope. The RCAs on HIV-1 envelope process complement protein C3 into various fragments that promote viral entry and infection of cells through different complement receptors...
March 7, 2018: Molecular Immunology
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