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https://www.readbyqxmd.com/read/28087941/interplay-between-myeloid-cells-and-humoral-innate-immunity
#1
Sébastien Jaillon, Eduardo Bonavita, Cecilia Garlanda, Alberto Mantovani
The innate immune system represents the first line of defense against pathogens and comprises both a cellular and a humoral arm. Fluid-phase pattern recognition molecules (PRMs), which include collectins, ficolins, and pentraxins, are key components of the humoral arm of innate immunity and are expressed by a variety of cells, including myeloid, epithelial, and endothelial cells, mainly in response to infectious and inflammatory conditions. Soluble PRMs share basic multifunctional properties including activation and regulation of the complement cascade, opsonization of pathogens and apoptotic cells, regulation of leukocyte extravasation, and fine-tuning of inflammation...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28078843/association-between-expression-of-cumulus-expansion-markers-and-real-time-proliferation-of-porcine-follicular-granulosa-cells-in-a-primary-cell-culture-model
#2
S Ciesiółka, J Budna, A Bryja, W Kranc, A Chachuła, M Dyszkiewicz-Konwińska, H Piotrowska, D Bukowska, P Antosik, M Bruska, K P Brüssow, M Nowicki, M Zabel, B Kempisty
Folliculogenesis is a compound process that involves both ovarian follicle growth and oocyte development, which is tightly attached to the follicular wall. During this process, cells that form the follicle structure undergo substantial morphological and molecular modifications that finally lead to differentiation and specialization of ovarian follicular cells. The differentiation of ovarian cells encompasses formation of follicle, which is composed of theca (TCs), mural granulosa (GCs), and cumulus cells (CCs)...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28071984/particulate-matter-mediated-release-of-long-pentraxin-3-ptx3-and-vascular-endothelial-growth-factor-vegf-in-vitro-limited-importance-of-endotoxin-and-organic-content
#3
J I Herseth, V Volden, A K Bolling
Exposure to particulate matter (PM) is associated with adverse health effects, but it is still relatively unknown which role PM sources and physicochemical properties play in the observed effects. It was postulated that PM in vitro induces release of long pentraxin 3 (PTX3) and vascular endothelial growth factor (VEGF) and that endotoxin and organic compounds present in the PM regulate this release. A contact coculture of THP-1 human leukemia monocytes and A549 human adenocarcinoma alveolar pneumocytes was exposed to PM from Traffic, Wood, Diesel, and Quartz (10-40 µg/cm(2)) for 12-64 h to determine release of PTX3 and VEGF...
January 10, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28056989/induction-of-altered-gene-expression-profiles-in-cultured-bovine-granulosa-cells-at-high-cell-density
#4
Anja Baufeld, Dirk Koczan, Jens Vanselow
BACKGROUND: In previous studies it has been shown that bovine granulosa cells (GC) cultured at a high plating density dramatically change their physiological and molecular characteristics, thus resembling an early stage of luteinization. During the present study, these specific effects on the GC transcriptome were comprehensively analysed to clarify the underlying mechanisms. METHODS: GC were cultured in serum free medium with FSH and IGF-1 stimulation at different initial plating density...
January 5, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28043168/plasma-levels-of-pentraxin-3-in-patients-with-spondyloarthritis
#5
Renato Nisihara, Thelma L Skare, João Otávio Zeni, Henrique Rasera, Karita Lidani, Iara Messias-Reason
CONTEXT: Determining the disease's inflammatory activity in Spondyloarthritis (SpA) is difficult although very important as it is this that drives treatment. OBJECTIVE: To investigate if plasma PTX3 (Pentraxine-3) could act as an inflammatory marker in SpA. METHODS: Eighty one SpA patients (11 with psoriatic arthritis or PsoA and 70 with Ankylosing Spondylitis or AS) and 90 gender and age paired controls were studied for plasma PTX3 levels by ELISA...
January 3, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28039065/microrna-224-delays-oocyte-maturation-through-targeting-ptx3-in-cumulus-cells
#6
Xiufang Li, Huidan Wang, Yan Sheng, Zhongqing Wang
MicroRNAs (miRNAs) have been improved to regulate oocyte development in a cell- or stage-specific manner. In this study, we aimed to clarify microRNA-224's (miR-224) role in cumulus cells (CCs), to find out whether a change level of miR-224 in CCs could influence the maturation of oocyte. We found that overexpression of miR-224 of CCs led to the impairment of cell expansion, along with a decrease in the gene expression associated with cell expansion and maturation of oocyte. The increased expression of miR-224 in CC interrupted oocyte cell cycle at the GV stage...
December 28, 2016: Mechanisms of Development
https://www.readbyqxmd.com/read/28031262/pseudomonas-aeruginosa-groel-stimulates-production-of-ptx3-by-activating-the-nf-%C3%AE%C2%BAb-pathway-and-simultaneously-down-regulating-microrna-9
#7
Heesung Shin, Jisu Jeon, Jung-Hoon Lee, Shouguang Jin, Un-Hwan Ha
As one of the first lines of host defense, monocytes play important roles in clearing infected microbes. The defensive response is triggered by recognition of diverse microbial moieties, including released factors, which modulate host immune responses to establish a harsh environment for clinically important bacterial pathogens. In this study, we found that expression of PTX3, a soluble form of pattern recognition receptor, was induced by infection with live Pseudomonas aeruginosa or treatment of cells with its supernatant...
December 28, 2016: Infection and Immunity
https://www.readbyqxmd.com/read/28002338/sputum-pentraxin-3-as-a-candidate-to-assess-airway-inflammation-and-remodeling-in-childhood-asthma
#8
Min Jung Kim, Hee Seon Lee, In Suk Sol, Mi Na Kim, Jung Yeon Hong, Kyung Eun Lee, Yoon Hee Kim, Kyung Won Kim, Myung Hyun Sohn, Kyu-Earn Kim
Pentraxin 3 (PTX3) is a soluble pattern recognition receptor and an acute-phase protein. It has gained attention as a new biomarker reflecting tissue inflammation and damage in a variety of diseases. Aim of this study is to investigate the role of PTX3 in childhood asthma.In total, 260 children (140 patients with asthma and 120 controls) were enrolled. PTX3 levels were measured in sputum supernatants using enzyme-linked immunosorbent assay test. We performed spirometry and methacholine challenge tests and measured the total eosinophil count and the serum levels of total IgE and eosinophil cationic protein (ECP) in all subjects...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27980366/tunicamycin-induced-endoplasmic-reticulum-stress-upregulates-the-expression-of-pentraxin-3-in-human-retinal-pigment-epithelial-cells
#9
Narae Hwang, Min-Young Kwon, Jae Bong Cha, Su Wol Chung, Je Moon Woo
PURPOSE: To investigate the production of long pentraxin 3 (PTX3) in response to tunicamycin-induced endoplasmic reticulum (ER) stress and its role in ER stress-associated cell death, PTX3 expression was evaluated in the human retinal pigment epithelial cell line, ARPE-19. METHODS: PTX3 production in ARPE-19 cells was analyzed in the absence or presence of tunicamycin treatment by enzyme-linked immunosorbent assay. PTX3 protein and mRNA levels were estimated using western blot analysis and real-time reverse transcription-polymerase chain reaction, respectively...
December 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/27973973/pentraxin-3-in-serum-and-synovial-fluid-of-patients-with-rheumatoid-arthritis-with-and-without-autoantibodies
#10
T Weitoft, A Larsson, T Saxne, V A Manivel, J Lysholm, A Knight, J Rönnelid
OBJECTIVES: Pentraxin 3 (PTX3) is a locally produced multifunctional protein involved in inflammation, matrix deposition, and immunity. As patients with seropositive rheumatoid arthritis (RA) have a more severe disease course and higher risk of joint destruction than seronegative patients, the aim of the present study was to examine differences in PTX3 in synovial fluid (SF) (and serum) in seropositive compared to seronegative RA, and other local markers of inflammation and destruction...
December 15, 2016: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/27965086/the-effect-of-poly-adp-ribosyl-ation-inhibition-on-the-porcine-cumulus-oocyte-complex-during-in%C3%A2-vitro-maturation
#11
Duk Hyoun Kim, Hye Ran Lee, Min Gyeong Kim, Jun Sung Lee, Su Jin Jin, Hoon Taek Lee
Poly(ADP-ribosyl)ation (PARylation) plays important roles in DNA repair, apoptosis, transcriptional regulation, and cell death, and occurs via the activity of poly(ADP-ribose) polymerases (PARPs). Previous studies have shown that PARylation affects mouse and porcine pre-implantation development and participates in mechanisms of autophagy. However, there have not yet been reported the role of PARylation during in vitro maturation (IVM) of porcine oocytes. Thus, we investigated the effect of PARylation inhibition on this process; cumulus-oocyte complexes (COCs) were cultured with 3-aminobenzamide (3-ABA, PARP inhibitor) during porcine IVM...
December 10, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27941350/pentraxin-3-activates-jnk-signaling-and-regulates-the-epithelial-to-mesenchymal-transition-in-renal-fibrosis
#12
Tung-Wei Hung, Jen-Pi Tsai, Shin-Huey Lin, Chien-Hsing Lee, Yi-Hsien Hsieh, Horng-Rong Chang
BACKGROUND/AIMS: Tubulointerstitial fibrosis can lead to end-stage renal disease. Pentraxin 3 (PTX3) is an acute phase protein produced by resident and innate immunity cells. We investigated the effect of PTX3 on cultured human proximal tubular epithelial (HK-2) cells and a rat unilateral ureteral obstruction (UUO) model of renal fibrosis. METHODS: Gain-of-function experiments were used to examine the effect of recombinant human PTX3 (Rh-PTX3) on HK-2 cells. Cell proliferation (MTT assay) and in vitro cell migration were measured...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27935854/second-trimester-maternal-serum-markers-in-the-prediction-of-preeclampsia
#13
Qiong Luo, Xiujun Han
AIM: To determine whether late second-trimester maternal serum biomarkers are useful for the prediction of preeclampsia during the third trimester, a case-control study including 33 preeclamptic and 71 healthy pregnancies was conducted. Maternal serum concentrations of placental protein 13 (PP13), pregnancy-associated plasma protein (PAPP-A), pentraxin3 (PTX3), soluble FMS-like tyrosine kinase-1 (sFlt-1), myostatin and follistatin-like-3 (FSLT-3) were measured at 24-28 weeks' gestation...
December 9, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27915246/neutrophil-dependent-pentraxin-3-and-reactive-oxygen-species-production-modulate-endothelial-dysfunction-in-haemodialysis-patients
#14
Maria Pia dell'Oglio, Simona Simone, Marco Ciccone, Roberto Corciulo, Michele Gesualdo, Annapaola Zito, Francesca Cortese, Giuseppe Castellano, Margherita Gigante, Loreto Gesualdo, Giuseppe Grandaliano, Giovanni Battista Pertosa
BACKGROUND: The aim of this study was to investigate neutrophil activation and its role in long pentraxin-3 (PTX3) release and oxidative stress generation during haemodialysis (HD) and to correlate neutrophil PTX3 and oxidant expression with endothelial dysfunction. METHODS: Forty-seven uraemic patients on stable HD, 12 healthy subjects and 15 patients with congestive heart failure (New York Heart Association classes III and IV) were enrolled. Neutrophil PTX3 protein expression was evaluated by confocal microscopy...
December 3, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27900389/the-clearance-of-cell-remnants-and-the-regeneration-of-the-injured-muscle-depend-on-soluble-pattern-recognition-receptor-ptx3
#15
Michela Vezzoli, Clara Sciorati, Lara Campana, Antonella Monno, Maria Giulia Doglio, Elena Rigamonti, Gianfranca Corna, Thierry Touvier, Alessandra Castiglioni, Annalisa Capobianco, Alberto Mantovani, Angelo A Manfredi, Cecilia Garlanda, Patrizia Rovere-Querini
OBJECTIVE: The signals causing the resolution of muscle inflammation are only partially characterized. The long pentraxin PTX3, which modulates leukocyte recruitment and activation, could contribute. METHODS: We analysed the expression of ptx3 after muscle injury and verified whether hematopoietic precursors are a source of the protein. The kinetics of regeneration and leukocytes infiltration, the accumulation of cell remnants and anti-histidyl-t-RNA synthetase autoantibodies were compared in wild-type and ptx3-deficient mice...
November 23, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27893424/accumulated-promoter-methylation-as-a-potential-biomarker-for-esophageal-cancer
#16
Xianzhen Peng, Hengchuan Xue, Lingshuang Lü, Peiyi Shi, Jianping Wang, Jianming Wang
We performed a two-stage molecular epidemiological study to explore DNA methylation profiles for potential biomarkers of esophageal squamous cell carcinoma (ESCC) in a Chinese population. Infinium Methylation 450K BeadChip was used to identify genes with differentially methylated CpG sites. Sixteen candidate genes were validated by sequencing 1160 CpG sites in their promoter regions using the Illumina MiSeq platform. When excluding sites with negative changes, 10 genes (BNIP3, BRCA1, CCND1, CDKN2A, HTATIP2, ITGAV, NFKB1, PIK3R1, PRDM16 and PTX3) showed significantly different methylation levels among cancer lesions, remote normal-appearing tissues, and healthy controls...
November 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/27893415/pentraxin-3-plasma-levels-at-graft-versus-host-disease-onset-predict-disease-severity-and-response-to-therapy-in-children-given-haematopoietic-stem-cell-transplantation
#17
Erica Dander, Paola De Lorenzo, Barbara Bottazzi, Paola Quarello, Paola Vinci, Adriana Balduzzi, Francesca Masciocchi, Sonia Bonanomi, Claudia Cappuzzello, Giulia Prunotto, Fabio Pavan, Fabio Pasqualini, Marina Sironi, Ivan Cuccovillo, Roberto Leone, Giovanni Salvatori, Matteo Parma, Elisabetta Terruzzi, Fabio Pagni, Franco Locatelli, Alberto Mantovani, Franca Fagioli, Andrea Biondi, Cecilia Garlanda, Maria Grazia Valsecchi, Attilio Rovelli, Giovanna D'Amico
Acute Graft-versus-Host Disease (GvHD) remains a major complication of allogeneic haematopoietic stem cell transplantation, with a significant proportion of patients failing to respond to first-line systemic corticosteroids. Reliable biomarkers predicting disease severity and response to treatment are warranted to improve its management. Thus, we sought to determine whether pentraxin 3 (PTX3), an acute-phase protein produced locally at the site of inflammation, could represent a novel acute GvHD biomarker. Using a murine model of the disease, we found increased PTX3 plasma levels after irradiation and at GvHD onset...
November 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/27889356/role-of-ptx3-in-corneal-epithelial-innate-immunity-against-aspergillus-fumigatus-infection
#18
Jie Zhang, Guiqiu Zhao, Jing Lin, Chengye Che, Cui Li, Nan Jiang, Liting Hu, Qian Wang
Pentraxin3 (PTX3), a member of long pentraxin family, plays a non-redundant role in human humoral innate immunity. However, whether PTX3 is expressed by corneal epithelial cells and its role during corneal fungi infection has not yet been investigated. To identify the presence of PTX3 in cornea, the possible mechanisms involved in its expression, and also the effects on corneal anti-fungi innate immune response, clinic human corneal tissues and cultured human corneal epithelial cells (HCECs) were resorted. PTX3 mRNA and protein were detected in corneal samples and cultured HCECs, which was significantly up-regulated after exposing to Aspergillus fumigatus (A...
November 23, 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27881292/innate-immunity-hemostasis-and-matrix-remodeling-ptx3-as-a-link
#19
REVIEW
Andrea Doni, Cecilia Garlanda, Alberto Mantovani
Innate immunity is evolutionarily connected with hemostasis. PTX3 is an essential fluid-phase pattern recognition molecule of the innate immune system that acts as a functional ancestor of antibodies. PTX3 by interacting with defense collagens and fibrinogens amplifies effector functions of the innate immune system. At wound sites, PTX3 regulates the injury-induced thrombotic response and promotes wound healing by favoring timely fibrinolysis. Therefore, PTX3 interacts with ancestral domains conserved in innate immunity, hemostasis and extracellular matrix and exerts functions related to both antimicrobial resistance and tissue repair...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27878407/low-serum-fibroblast-growth-factor-2-levels-not-accompanied-by-increased-serum-pentraxin-3-levels-in-patients-with-systemic-sclerosis
#20
Ufuk İlgen, Müçteba Enes Yayla, Nurşen Düzgün
There are scarce clinical data regarding serum pentraxin 3 (PTX3) and fibroblast growth factor 2 (FGF2) in patients with systemic sclerosis (SSc). Study was conducted to evaluate serum levels in our SSc cohort. Serum PTX3 and FGF2 concentrations were compared among SSc, disease control (systemic lupus erythematosus (SLE)), and healthy control groups. We also examined the association of serum levels of PTX3 and FGF2 with disease manifestations. Serum PTX3 levels were similarly distributed among SSc (n = 93) and healthy groups (n = 66) (p = 1...
November 22, 2016: Clinical Rheumatology
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