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Pentraxin 3

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https://www.readbyqxmd.com/read/28533443/fhr-1-binds-to-c-reactive-protein-and-enhances-rather-than-inhibits-complement-activation
#1
Ádám I Csincsi, Zsóka Szabó, Zsófia Bánlaki, Barbara Uzonyi, Marcell Cserhalmi, Éva Kárpáti, Agustín Tortajada, Joseph J E Caesar, Zoltán Prohászka, T Sakari Jokiranta, Susan M Lea, Santiago Rodríguez de Córdoba, Mihály Józsi
Factor H-related protein (FHR) 1 is one of the five human FHRs that share sequence and structural homology with the alternative pathway complement inhibitor FH. Genetic studies on disease associations and functional analyses indicate that FHR-1 enhances complement activation by competitive inhibition of FH binding to some surfaces and immune proteins. We have recently shown that FHR-1 binds to pentraxin 3. In this study, our aim was to investigate whether FHR-1 binds to another pentraxin, C-reactive protein (CRP), analyze the functional relevance of this interaction, and study the role of FHR-1 in complement activation and regulation...
May 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28522011/vaccination-with-a-live-attenuated-acinetobacter-baumannii-deficient-in-thioredoxin-provides-protection-against-systemic-acinetobacter-infection
#2
Sarah Ainsworth, Patrick M Ketter, Jieh-Juen Yu, Rose C Grimm, Holly C May, Andrew P Cap, James P Chambers, M Neal Guentzel, Bernard P Arulanandam
Multi-drug resistant Acinetobacter baumannii (MDR-Ab), an opportunistic pathogen associated with nosocomial and combat related infections, has a high mortality due to its virulence and limited treatment options. Deletion of the thioredoxin gene (TrxA) from a clinical isolate of MDR-Ab resulted in a 100-fold increase in 50% lethal dose (LD50) in a systemic challenge murine model. Thus, we investigated the potential use of this attenuated strain as a live vaccine against MDR-Ab. Mice were vaccinated by subcutaneous (s...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28489600/oleate-induced-ptx3-promotes-head-and-neck-squamous-cell-carcinoma-metastasis-through-the-up-regulation-of-vimentin
#3
Shih-Hung Chan, Jhih-Peng Tsai, Chih-Jie Shen, Yu-Han Liao, Ben-Kuen Chen
The association between metabolic diseases and the risk of developing cancer is emerging. However, the impact of long pentraxin-3 (PTX3) on dyslipidemia-associated tumor metastasis remains unknown. In this study, we found that oleate induced PTX3 expression and secretion through the activation of Akt/NF-κB pathway in head and neck squamous cell carcinomas (HNSCCs). The activation of NF-κB was essential for the oleate-induced stabilization of PTX3 mRNA. In addition, both the depletion of PTX3 and the inhibition of NF-κB significantly inhibited oleate-induced tumor cell migration and invasion...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28487045/pentraxin-3-levels-in-bronchoalveolar-lavage-fluid-of-lung-transplant-recipients-with-invasive-aspergillosis
#4
Dima Kabbani, Archana Bhaskaran, Lianne G Singer, Alyajahan Bhimji, Coleman Rotstein, Shaf Keshavjee, W Conrad Liles, Shahid Husain
BACKGROUND: Invasive aspergillosis is the most common invasive fungal infection in lung transplant recipients. The use of galactomannan testing in bronchoalveolar lavage (BAL) fluid has improved diagnosis of invasive aspergillosis; however, false-positive results can lead to overdiagnosis and unnecessary treatment. The use of proinflammatory markers such as pentraxin 3 (PTX3) may help differentiate between Aspergillus colonization and disease. METHODS: BAL PTX3 concentrations were measured by enzyme-linked immunosorbent assay in 151 lung transplant recipients and 9 healthy control subjects...
April 19, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28471269/anti-pentraxin-antibodies-in-autoimmune-systemic-diseases-focus-on-anti-pentraxin-3-autoantibodies
#5
Jean-François Augusto, Caroline Poli, Céline Beauvillain, Jean-François Subra, Sebastien Jaillon, Gilles Renier, Alain Chevailler, Xavier Puéchal, Yves Delneste, Pascale Jeannin
Pentraxins are soluble pattern recognition molecules implicated not only in the opsonization and removal of microorganisms but also in the clearance of modified self (i.e., dying cells). Pentraxins can be classified into short pentraxins (C-reactive protein and serum amyloid-P component) and long pentraxins with pentraxin-3 (PTX3), the prototypic one of the latter. Pentraxins are involved in various physiological or pathophysiological processes such as inflammation and autoimmunity. A breakdown in immune tolerance to pentraxins has been reported in various autoimmune diseases...
May 4, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28458531/investigating-the-role-of-pentraxin-3-as-a-biomarker-for-bacterial-infection-in-subjects-with-copd
#6
Samantha J Thulborn, Madiha Dilpazir, Koirobi Haldar, Vijay Mistry, Christopher E Brightling, Michael R Barer, Mona Bafadhel
BACKGROUND: Pentraxin 3 (PTX3) is an acute phase protein, involved in antibacterial resistance. Recent studies have shown PTX3 levels to be elevated in the presence of a bacterial infection and in a murine sepsis model. OBJECTIVE: We aim to investigate if sputum PTX3 can be used as a biomarker for bacterial infection in subjects with COPD. MATERIALS AND METHODS: Sputum samples from 142 COPD patients (102 men) with a mean (range) age of 69 years (45-85) and mean (SD) post-bronchodilator percentage predicted forced expiratory volume in 1 second (FEV1) of 50% (19) were analyzed for PTX3, using a commercial assay at stable state and during an exacerbation...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28457653/study-of-the-relationship-between-apoa-ii%C3%A2-265t-c-polymorphism-and-hdl-function-in-response-to-weight-loss-in-overweight-and-obese-type-2-diabetic-patients
#7
Masoumeh Moradi, Maryam Mahmoudi, Ahmad Saedisomeolia, Mohammad Ali Mansournia, Roxana Zahirihashemi, Fariba Koohdani
BACKGROUND: It has been reported that people may respond differently to the same environmental changes because of genome variations. OBJECTIVE: The main purpose of the present study is to determine gene-diet interactions between -265T>C apolipoprotein A-II polymorphisms and evaluate the effect of weight loss on parameters related to HDL function. METHODS: In the present study, 56 overweight and obese type 2 diabetic patients were chosen from 697 genotype-specified subjects...
April 9, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28440716/exercise-reduced-pentraxin-3-levels-produced-by-endotoxin-stimulated-human-peripheral-blood-mononuclear-cells-in-obese-individuals
#8
Aaron L Slusher, Yoshimi Shibata, Michael Whitehurst, Arun Maharaj, Justin M Quiles, Chun-Jung Huang
The purpose of this study was to determine whether obesity would reduce the capacity of peripheral blood mononuclear cells (PBMCs) to produce the anti-inflammatory protein pentraxin 3 (PTX3) in response to ex vivo stimulation with lipopolysaccharide (LPS), and if acute aerobic exercise would enhance this PTX3 production capacity. In addition, the inter-relationships of LPS-induced PTX3 with the inflammatory cytokines (interleukin 6 [IL-6], IL-10, and tumor necrosis factor alpha) were examined. Twenty-one healthy subjects (10 obese and 11 normal-weight) performed an acute bout of aerobic exercise at 75% VO2max...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28436274/depletion-of-hdl3-high-density-lipoprotein-and-altered-functionality-of-hdl2-in-blood-from-sickle-cell-patients
#9
Eric Soupene, Sandra K Larkin, Frans A Kuypers
In sickle cell disease (SCD), alterations of cholesterol metabolism is in part related to abnormal levels and activity of plasma proteins such as lecithin cholesterol acyltransferase (LCAT), and apolipoprotein A-I (ApoA-I). In addition, the size distribution of ApoA-I high density lipoproteins (HDL) differs from normal blood. The ratio of the amount of HDL2 particle relative to the smaller higher density pre-β HDL (HDL3) particle was shifted toward HDL2. This lipoprotein imbalance is exacerbated during acute vaso-occlusive episodes (VOE) as the relative levels of HDL3 decrease...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28422322/pentraxin-3-modulates-lps-induced-inflammatory-response-and-attenuates-liver-injury
#10
Luis Perea, Mar Coll, Lucia Sanjurjo, Delia Blaya, Adil El Taghdouini, Daniel Rodrigo-Torres, José Altamirano, Isabel Graupera, Beatriz Aguilar-Bravo, Marta Llopis, Julia Vallverdú, Joan Caballeria, Leo A van Grunsven, Maria-Rosa Sarrias, Pere Ginès, Pau Sancho-Bru
Acute-on-chronic liver injury is characterized by an important inflammatory response frequently associated with endotoxemia. In this context, acute phase proteins such as Pentraxin-3 (PTX3) are released, however, little is known about their role in chronic liver disease. The aim of this study was to elucidate the role of PTX3 in liver injury. Role of PTX3 was evaluated in cultured human cells, liver tissue slices and mice with acute-on-chronic liver injury. PTX3 expression was assessed in tissue and serum samples from 54 patients with alcoholic hepatitis (AH)...
April 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28421853/pentraxin-3-and-lipid-profile-status-in-pregnancy
#11
Yun Sung Jo, Ju Young Cheon, Jung Whan Ahn, Yeongsic Kim, Gui Se Ra Lee
Hyperlipidaemia and hypercholesterolaemia are risk factors of atherosclerosis and cardiovascular disease. The reference range of lipids during pregnancy has not yet been clearly set. This study sought to measure lipid parameters and pentraxin (PTX) 3 levels in low-risk pregnant women. The participants had serial blood samples taken between their 6th-9th week, 10th-13th week, 14th-19th week, 24th-29th week and 35th-40th week (as long as there were no contractions), during the labour period, and 2 days after delivery...
April 19, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28420068/pentraxin-3-levels-are-associated-with-vasculitis-and-disease-activity-in-childhood-onset-systemic-lupus-erythematosus
#12
S Sahin, A Adrovic, K Barut, S Durmus, R Gelisgen, H Uzun, O Kasapcopur
Objectives Childhood-onset systemic lupus erythematosus (cSLE) is a multisystemic autoimmune disease characterized by inflammatory organ damage by means of vasculitis. Pentraxin-3 (PTX3) is expressed locally at the sites of inflammatory processes, predominantly from endothelial cells. In adult studies, PTX3 has shown to be an indicator of active vasculitis both in large-vessel and small-vessel vasculitides, as well as in SLE. Moreover, in SLE it has found to be correlated with disease activity, and with some of the clinical manifestations and laboratory parameters...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28409410/synergistic-cardioprotective-effects-of-combined-chromium-picolinate-and-atorvastatin-treatment-in-triton-x-100-induced-hyperlipidemia-in-rats-impact-on-some-biochemical-markers
#13
Noha M Shafik, Amal Baalash, Abla M Ebeid
Hyperlipidemia is one of the major risk factors for atherosclerosis and ischemic heart disease. Chromium (Cr) mineral is playing a crucial role in glucose and lipid homeostasis. The aim of this study was to evaluate the protective effects of combined chromium picolinate (CrPic) and atorvastatin treatment against hyperlipidemia-induced cardiac injury. Seventy-five male albino rats were divided into five groups (15 rats each). Hyperlipidemia was induced by intraperitoneal injection of a single dose of Triton X-100 (300 mg/kg body weight (b...
April 13, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28400677/the-potential-role-of-aerobic-exercise-induced-pentraxin-3-on-obesity-related-inflammation-and-metabolic-dysregulation
#14
REVIEW
Aaron L Slusher, Chun-Jung Huang, Edmund O Acevedo
Obesity is defined as the excess accumulation of intra-abdominal body fat, resulting in a state of chronic, low-grade proinflammation that can directly contribute to the development of insulin resistance. Pentraxin 3 (PTX3) is an acute-phase protein that is expressed by a variety of tissue and cell sources and provides an anti-inflammatory property to downregulate the production of proinflammatory cytokines, in particular interleukin-1 beta and tumor necrosis factor alpha. Although PTX3 may therapeutically aid in altering the proinflammatory milieu in obese individuals, and despite elevated expression of PTX3 mRNA observed in adipose tissue, the circulating level of PTX3 is reduced with obesity...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28394002/supplementation-with-omega-3-acids-after-myocardial-infarction-and-modification-of-inflammatory-markers-in-light-of-the-patients-diet-a-preliminary-study
#15
Magdalena Makarewicz-Wujec, Gabriela Parol, Andrzej Parzonko, Małgorzata Kozłowska-Wojciechowska
BACKGROUND: Neuroendocrine activation, activation of proinflammatory cytokines and platelets, and endothelial dysfunction play a significant role in development of heart failure. AIM: The aim of the work was to assess the effect of supplementation with EPA and DHA in adaily dose of 1g on selected inflammatory markers and platelet activation in patients with heart failure after recent myocardial infarction in light of their diet. M ETHODS: This preliminary study was arandomised, double-blind trial involving 30patients with post-infarction heart failure...
April 10, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28393653/anti-pentraxin-3-auto-antibodies-might-be-protective-in-lupus-nephritis-a-large-cohort-study
#16
Mo Yuan, Ying Tan, Yun Pang, Yong-Zhe Li, Yan Song, Feng Yu, Ming-Hui Zhao
OBJECTIVES: Anti-pentraxin 3 (PTX3) auto-antibodies were found to be associated with the absence of renal involvement in systemic lupus erythematosus (SLE). This study is to investigate the prevalence of anti-PTX3 auto-antibodies and their clinical significance based on a large Chinese lupus nephritis cohort. METHODS: One hundred and ninety-six active lupus nephritis patients, 150 SLE patients without clinical renal involvement, and 100 healthy controls were enrolled...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28393357/inflammatory-biomarkers-and-cancer-crp-and-supar-as-markers-of-incident-cancer-in-patients-with-serious-nonspecific-symptoms-and-signs-of-cancer
#17
Line Jee Hartmann Rasmussen, Martin Schultz, Anne Gaardsting, Steen Ladelund, Peter Garred, Kasper Iversen, Jesper Eugen-Olsen, Morten Helms, Kim Peter David, Andreas Kjaer, Anne-Mette Lebech, Gitte Kronborg
In Denmark, patients with serious nonspecific symptoms and signs of cancer (NSSC) are referred to the diagnostic outpatient clinics (DOCs) where an accelerated cancer diagnostic program is initiated. Various immunological and inflammatory biomarkers have been associated with cancer, including soluble urokinase plasminogen activator receptor (suPAR) and the pattern recognition receptors (PRRs) pentraxin-3, mannose-binding lectin, ficolin-1, ficolin-2 and ficolin-3. We aimed to evaluate these biomarkers and compare their diagnostic ability to classical biomarkers for diagnosing cancer in patients with NSSC...
April 10, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28377558/pentraxin-3-as-a-new-indicator-of-cardiovascular%C3%A2-related-death-in-patients-with-advanced-chronic-kidney-disease
#18
Marcin Krzanowski, Katarzyna Krzanowska, Mariusz Gajda, Paulina Dumnicka, Artur Dziewierz, Karolina Woziwodzka, Jan A Litwin, Władysław Sułowicz
INTRODUCTION    Pentraxin3 (PTX3) play an important role in the inflammatory response, taking part in recognizing pathogens and damaged tissues. OBJECTIVES    The aim of the study was to assess the relationship between PTX3 levels and all-cause and cardiovascular (CV) mortality in chronic kidney disease (CKD) patients during five-year observation period.  PATIENTS AND METHODS    The study comprised 78 patients (51 hemodialyzed, 27 predialysis). The examined parameters included PTX3, calcium, phosphate, iPTH, interleukin-6 (IL-6), fibroblast growth factor 23 (FGF-23), osteopontin (OPN), osteoprotegerin (OPG), osteocalcin (OC), osteopontin (OPN), osteoprotegerin (OPG), osteocalcin, tumor necrosis factor receptor II (TNF-R II), transforming growth factor-β (TGF-β), hepatocyte growth factor (HGF), stromal cell-derived factor α (SDF1α), and thrombomodulin (TM)...
February 27, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28377191/serum-pentraxin-3-is-associated-with-signs-of-arterial-alteration-in-women-with-preeclampsia
#19
Tansim Akhter, Anna-Karin Wikström, Marita Larsson, Anders Larsson, Gerhard Wikström, Tord Naessen
BACKGROUND: Preeclampsia (PE) in pregnancy is a state of exaggerated inflammation and is associated with an increased risk of cardiovascular disease (CVD) later in life. Levels of pentraxin 3 (PTX3), a novel inflammation marker, are increased during PE and in individuals with CVD. The primary aim of this study was to assess whether serum PTX3 in women with PE is associated with adverse arterial effects; a thicker intima and higher intima/media (I/M) ratio in the common carotid artery (CCA)...
March 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28375830/assessing-the-role-of-pentraxin-3-in-takayasu-arteritis-reply-to-alibaz-oner-f-et-al-plasma-pentraxin-3-levels-in-patients-with-takayasu-s-arteritis-during-routine-follow-up-clin-exp-rheumatol-2016-34-suppl-97-s73-6
#20
Giacomo De Luca, Giulio Cavalli, Elena Baldissera, Lorenzo Dagna
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March 28, 2017: Clinical and Experimental Rheumatology
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