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Jiri Parenica, Jiri Jarkovsky, Jan Malaska, Alexandre Mebazaa, Jana Gottwaldova, Katerina Helanova, Jiri Litzman, Milan Dastych, Josef Tomandl, Jindrich Spinar, Ludmila Dostalova, Petr Lokaj, Marie Tomandlova, Monika Goldergova Pavkova, Pavel Sevcik, Matthieu Legrand
INTRODUCTION: Cardiogenic shock (CS) patients are at a high risk of developing infectious complications; however, their early detection is difficult, mainly due to a frequently occurring non-infectious inflammatory response, which accompanies an extensive myocardial infarction or a post-cardiac arrest syndrome. The goal of our prospective study was to describe infectious complications in CS and the immune/inflammatory response based on a serial measurement of several blood-based inflammatory biomarkers...
September 29, 2016: Shock
Samar Basu, Holly Harris, Alicja Wolk, Adrien Rossary, Florence Caldefie-Chézet, Marie-Paule Vasson, Anders Larsson
INTRODUCTION: Breast cancer is a common cancer among women. Identifying cellular participation of F2-isoprostane, prostaglandin F2α (PGF2α) and pentraxin 3 (PTX3) in cancer we evaluated whether their prediagnostic systemic levels that originate from different inflammatory pathways were associated with breast cancer risk. METHODS: Seventy-eight breast cancer cases diagnosed after blood collection and 797 controls from the Swedish Mammography Cohort were analysed for urinary F2-isoprostane, PGF2α and plasma PTX3 levels...
October 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
Lei Wang, Marisol Cano, Sayantan Datta, Hong Wei, Katayoon B Ebrahimi, Yara Gorashi, Cecilia Garlanda, James T Handa
The discovery that genetic abnormalities in complement factor H (FH) are associated with increased risk for age-related macular degeneration (AMD), the most common cause of blindness among the elderly, raised hope of new treatments for this vision threatening disease. Nonetheless, over a decade after the identification of this important association, how innate immunity contributes to AMD remains unresolved. Pentraxin 3 (PTX3), an essential component of innate immunity that plays a non-redundant role in controlling inflammation, regulates complement by interacting with complement components...
September 23, 2016: Journal of Pathology
Christina L O'Neill, Jasenka Guduric-Fuchs, Sarah Ej Chambers, Michelle O'Doherty, Barbara Bottazzi, Alan W Stitt, Reinhold J Medina
AIMS: Circulating Angiogenic Cells (CACs) promote revascularization of ischemic tissues although their underlying mechanism of action and the consequences of delivering varying numbers of these cells for therapy remain unknown. This study investigates molecular mechanisms underpinning CAC modulation of blood vessel formation. METHODS & RESULTS: CACs at low (2x10(5)cells/ml) and mid (2x10(6)cells/ml) cellular densities significantly enhanced endothelial cell (EC) tube formation in vitro, while high density CACs (2x10(7)cells/ml) significantly inhibited this angiogenic process...
September 22, 2016: Cardiovascular Research
Dan Ma, Ye Zong, Sheng-Tao Zhu, Yong-Jun Wang, Peng Li, Shu-Tian Zhang
BACKGROUND: Esophageal cancer is the sixth leading cause of cancer-related death worldwide. Pentraxin-3 (PTX3) is a member of the PTX superfamily. Here, we investigated the role of PTX3 in esophageal squamous cell carcinoma (ESCC). METHODS: The effect of PTX3 on ESCC cell proliferation, colony formation, apoptosis, migration, and invasion was investigated using cell viability assays, colony formation assays, flow cytometry, and migration and invasion assays. The effect of PTX3 on the tumorigenicity of ESCC in vivo was investigated with xenograft studies in nude mice...
2016: Chinese Medical Journal
Alejo Chorny, Sandra Casas-Recasens, Jordi Sintes, Meimei Shan, Nadia Polentarutti, Ramón García-Escudero, A Cooper Walland, John R Yeiser, Linda Cassis, Jorge Carrillo, Irene Puga, Cristina Cunha, Hélder Bastos, Fernando Rodrigues, João F Lacerda, António Morais, Rebeca Dieguez-Gonzalez, Peter S Heeger, Giovanni Salvatori, Agostinho Carvalho, Adolfo Garcia-Sastre, J Magarian Blander, Alberto Mantovani, Cecilia Garlanda, Andrea Cerutti
Pentraxin 3 (PTX3) is a fluid-phase pattern recognition receptor of the humoral innate immune system with ancestral antibody-like properties but unknown antibody-inducing function. In this study, we found binding of PTX3 to splenic marginal zone (MZ) B cells, an innate-like subset of antibody-producing lymphocytes strategically positioned at the interface between the circulation and the adaptive immune system. PTX3 was released by a subset of neutrophils that surrounded the splenic MZ and expressed an immune activation-related gene signature distinct from that of circulating neutrophils...
September 19, 2016: Journal of Experimental Medicine
Daniel Muthas, Anna Reznichenko, Clare A Balendran, Gerhard Böttcher, Ib Groth Clausen, Carina Kärrman Mårdh, Tomas Ottosson, Mohib Uddin, Thomas T MacDonald, Silvio Danese, Mark Berner Hansen
OBJECTIVES: This review article describes the role of neutrophils in mucosal injury and the resulting crypt abscesses characteristic of ulcerative colitis. We also review selected biomarkers for monitoring neutrophil presence and activity in the mucosa as well as their potential as therapeutic targets. MATERIAL: We have collated and selectively reviewed data on the most prominent well-established and emerging neutrophil-related biomarkers and potential therapeutic targets (calprotectin, lactoferrin, CXCR1, CXCR2, MMP-9, NGAL, elafin, HNE, pANCAs, MPO, CD16, CD177, CD64, HNPs, SLPI and PTX3) in ulcerative colitis...
September 9, 2016: Scandinavian Journal of Gastroenterology
Jie Zhang, Tai-Yong Wang, Xue-Cai Niu
Colorectal carcinoma (CRC) is one of the most common cancers globally. It is essential to identify a prognostic predictor for CRC. Pentraxin 3 (PTX3) is a glycoprotein that is secreted by a variety of human cells. It plays an important role in inflammation and immune regulation. Increasing evidence reveals that elevated PTX3 expression is related to poor prognosis in various cancers. The aim of the study was to determine the usefulness of plasma PTX3 level as a prognostic predictor in CRC. Total 184 CRC patients and 216 controls were included...
2016: Tohoku Journal of Experimental Medicine
Jyoti Balhara, Lianyu Shan, Jingbo Zhang, Anik Muhuri, Andrew J Halayko, Muhamad S Almiski, Diana Doeing, John McConville, Martin M Matzuk, Abdelilah S Gounni
BACKGROUND: Pentraxin 3 (PTX3) is a multifunctional molecule that plays a nonredundant role at the crossroads between pathogen clearance, innate immune system, matrix deposition, female fertility, and vascular biology. It is produced at sites of infection and inflammation by both structural and inflammatory cells. However, its role in allergen-induced inflammation remains to be tested. OBJECTIVE: We sought to determine the effect of Ptx3 deletion on ovalbumin (OVA)-induced allergic inflammation in a murine model of asthma...
July 26, 2016: Journal of Allergy and Clinical Immunology
Kimihiro Igari, Toshifumi Kudo, Takahiro Toyofuku, Yoshinori Inoue
Objective. The pentraxin family, including high-sensitivity C-reactive protein (hs-CRP), serum amyloid P (SAP), and pentraxin 3 (PTX3), has been identified as playing a key role in inflammatory reactions such as in atherosclerosis and cardiovascular disease. In this study, we examined the relationship between peripheral arterial disease (PAD) and serum levels of pentraxins. Methods. This study was undertaken via a retrospective review of PAD patients with surgical intervention for lesions of the common femoral artery...
2016: International Journal of Vascular Medicine
Francesco Fornai, Albino Carrizzo, Maurizio Forte, Mariateresa Ambrosio, Antonio Damato, Michela Ferrucci, Francesca Biagioni, Carla Busceti, Annibale A Puca, Carmine Vecchione
The acute phase protein Pentraxin 3 (PTX3) plays a non-redundant role as a soluble pattern recognition receptor for selected pathogens and it represents a rapid biomarker for primary local activation of innate immunity and inflammation. Recent evidence indicates that PTX3 exerts an important role in modulating the cardiovascular system in humans and experimental models. In particular, there are conflicting points concerning the effects of PTX3 in cardiovascular diseases (CVD) since several observations indicate a cardiovascular protective effect of PTX3 while others speculate that the increased plasma levels of PTX3 in subjects with CVD correlate with disease severity and with poor prognosis in elderly patients...
2016: Immunity & Ageing: I & A
Honghao Wang, Nan Cheng, Jianjian Dong, Xun Wang, Yongsheng Han, Renmin Yang, Yongzhu Han
BACKGROUND: Wilson's disease (WD) is an autosomal recessive inherited disorder of copper (Cu) metabolism, resulting in pathological accumulation of Cu in many organs and tissues, predominantly in the liver and brain. Cu deposition may lead to neuroinflammation in the brain of WD patients. Pentraxin 3 (PTX3) may play an important role in innate immunity and in WD. We compared plasma PTX3 concentrations in WD patients and healthy controls, and to determine whether PTX3 concentration was associated with neurological disease severity...
November 1, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
Xu Zhang, Wenyuan Ding
BACKGROUND Pentraxin 3 is considered to play an important role in immune and inflammatory reaction. This study aimed to detect the effect of pentraxin3 gene (PTX3) polymorphisms on ankylosing spondylitis (AS) risk. MATERIAL AND METHODS The genotyping of PTX3 polymorphisms in 101 AS patients and 93 controls was conducted by allelic discrimination assay and the genotype distribution was assessed for Hardy-Weinberg equilibrium (HWE). The differences of genotype, allele, haplotype, and some basic indexes were compared by χ2 test...
2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Yanghua He, Minyan Song, Yi Zhang, Xizhi Li, Jiuzhou Song, Yuan Zhang, Ying Yu
BACKGROUND: S. aureus is one of the major etiological agents causing bovine subclinical mastitis. The regulatory effects of H3K27me3 on gene expression in subclinical S. aureus mastitis cows are unknown. This study aimed to profile genome-wide transcriptional changes regulated by H3K27me3 in bovine lymphocytes applied in subclinical S. aureus mastitis cows and healthy controls. RESULTS: A total of 61 differentially expressed genes (DEGs) were detected in subclinical S...
2016: BMC Genomics
Servet Altay, Hüseyin Altuğ Çakmak, Tuğba Kemaloğlu Öz, Fatma Özpamuk Karadeniz, Ayça Türer, Hatice Betül Erer, Gülen Feyzan Kılıç, İbrahim Keleş, Günay Can, Mehmet Eren
OBJECTIVE: A predictive role of serum Pentraxin 3 (PTX3) for short-term adverse cardiovascular events including mortality in acute myocardial infarction (AMI) was reported in recent studies. The aim of the study was to investigate long-term prognostic significance of serum PTX3 in an AMI with 5-year follow-up period in this study. METHODS: In this prospective study, 140 patients, who were admitted to the emergency department between January 2011 and December 2011 with acute chest pain and/or dyspnea and diagnosed with AMI and 60 healthy controls were included...
August 2, 2016: Anatolian Journal of Cardiology
Andrea Doni, Giovanna D'Amico, Diego Morone, Alberto Mantovani, Cecilia Garlanda
Innate immunity is involved in regulating inflammatory and tissue repair responses to injury. In particular, humoral innate immunity plays functions related to wound clearance from tissue debris, and regulation of macrophage and stromal cell activities. PTX3, a component of humoral innate immunity, orchestrates tissue repair by interacting with plasminogen and fibrin. Fluid-phase molecules of innate immunity interact with elements of the extracellular matrix, and some of the latter display opsonic activity against certain bacterial species...
July 29, 2016: Seminars in Cell & Developmental Biology
Anna Gmiterek, Anna Kłopot, Halina Wójtowicz, Soraya C Trindade, Mariusz Olczak, Teresa Olczak
The main etiologic agent and a key pathogen responsible for initiation and progression of chronic periodontitis is Porphyromonas gingivalis. We examined the role of P. gingivalis, with particular interest to HmuY protein, in expression of genes involved in Toll-like receptor (TLR)-induced signaling pathways using cell-based infection model. U937 and THP-1 cells differentiated toward macrophages by PMA treatment responded to P. gingivalis-caused infection in slightly different gene expression pattern, mainly by higher expression of genes encoding NF-κB, TLR7, TLR2, TLR8, pro-inflammatory cytokines (IL-1β, IL-6, TNFα), anti-inflammatory cytokine (IL-10), and chemokines (CCL3L1, CCL4, CXCL10, CXCL11, PTX3)...
July 22, 2016: Immunobiology
Bongkun Choi, Eun-Jin Lee, Min-Kyung Shin, Young Soo Park, Min-Hee Ryu, Sang-Min Kim, Eun-Young Kim, Hyung Keun Lee, Eun-Ju Chang
The brain-derived neurotrophic factor (BDNF) activates its receptor, tropomyosin receptor kinase B (TrkB; also called NTRK2) that has been shown to promote the malignant progression of several cancers. In this study, we investigated the clinical and biological significance of the BDNF/TrkB axis in the progression of human gastric cancer. The increased co-expression of the BDNF/TrkB axis was significantly correlated with bone metastatic properties in advanced gastric cancers. BDNF acting via TrkB receptors increased the levels of long pentraxin 3 (PTX3) that was related to bone metastatic status of gastric cancer by enhancing gastric cancer-osteoblastic niche interactions...
July 21, 2016: Oncotarget
Aaron L Slusher, Amanda B Mischo, Edmund O Acevedo
UNLABELLED: Pentraxin 3 (PTX3) is an acute phase protein expressed in response to pro-inflammatory stimuli during atherosclerosis. However, recent findings suggest that PTX3 is a counter-regulatory protein which enhances the anti-inflammatory response. OBJECTIVE: Therefore, the capacity of PTX3 to alter the inflammatory milieu following in vitro stimulation of PBMCs with the pro-inflammatory lipid, palmitate, was examined. METHODS: PBMCs from 17 healthy male donors were isolated and cultured under four separate conditions; 200μmol/L palmitate, a physiologically relevant concentration of PTX3, in combination (pal+PTX3), and an unstimulated time-course control...
October 2016: Cytokine
Joshua M Diamond, Selim Arcasoy, Jamiela A McDonnough, Joshua R Sonett, Matthew Bacchetta, Frank D'Ovidio, Edward Cantu, Christian A Bermudez, Amika McBurnie, Melanie Rushefski, Laurel H Kalman, Michelle Oyster, Carly D'Errico, Yoshikazu Suzuki, Jon T Giles, Anthony Ferrante, Matthew Lippel, Gopal Singh, David J Lederer, Jason D Christie
Obesity is a risk factor for primary graft dysfunction, a form of lung injury resulting from ischemia reperfusion after lung transplantation, but the impact of ischemia reperfusion on adipose tissue is unknown. We evaluated differential gene expression in thoracic visceral adipose tissue (VAT) before and after lung reperfusion. Total RNA was isolated from thoracic VAT sampled from 6 subjects enrolled in the Lung Transplant Body Composition study before and after allograft reperfusion and quantified using the Human Gene 2...
July 16, 2016: American Journal of Transplantation
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