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Systemic urokinase

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https://www.readbyqxmd.com/read/28073983/a-novel-embryo-culture-media-supplement-that-improves-pregnancy-rates-in-mice
#1
A R Highet, T Bianco-Miotto, K G Pringle, A Peura, S Bent, J Zhang, M B Nottle, J G Thompson, C T Roberts
The preimplantation embryo in vivo is exposed to numerous growth factors in the female reproductive tract, which are not recapitulated in embryo culture media in vitro The IGF2 and plasminogen activator systems facilitate blastocyst development. We hypothesized that the addition of IGF2 in combination with urokinase plasminogen activator (uPA) and plasminogen could improve rates of blastocyst hatching and implantation in mice. B6BcF1 and CBAB6F2 mouse embryos were divided into one of four supplemented culture media treatment groups: (1) control (media only); (2) 12...
March 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28062404/endothelial-to-mesenchymal-transition-contributes-to-endothelial-dysfunction-and-dermal-fibrosis-in-systemic-sclerosis
#2
Mirko Manetti, Eloisa Romano, Irene Rosa, Serena Guiducci, Silvia Bellando-Randone, Amato De Paulis, Lidia Ibba-Manneschi, Marco Matucci-Cerinic
OBJECTIVE: Systemic sclerosis (SSc) features multiorgan fibrosis orchestrated predominantly by activated myofibroblasts. Endothelial-to-mesenchymal transition (EndoMT) is a transdifferentiation by which endothelial cells (ECs) lose their specific morphology/markers and acquire myofibroblast-like features. Here, we determined the possible contribution of EndoMT to the pathogenesis of dermal fibrosis in SSc and two mouse models. METHODS: Skin sections were immunostained for endothelial CD31 or vascular endothelial (VE)-cadherin in combination with α-smooth muscle actin (α-SMA) myofibroblast marker...
January 6, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28060552/the-root-extract-of-gentiana-macrophylla-pall-alleviates-b19-ns1-exacerbated-liver-injuries-in-nzb-w-f1-mice
#3
Ming-Jen Sheu, Chun-Ching Chiu, Deng-Jye Yang, Tsai-Ching Hsu, Bor-Show Tzang
The nonstructural protein NS1 of human parvovirus B19 (B19) is known to exacerbate disease activity in systemic lupus erythematosus (SLE). However, no specific medicine for B19 infection is available. The roots of Gentiana macrophylla Pall. (GM), the traditional Chinese medicine "Qinjiao," have been used for centuries to treat rheumatic disease, including SLE. Herein, we aimed to investigate the effects of GM root extract (100 and 300 mg/kg body weight) on B19-NS1-exacerbated liver injury in NZB/W F1 mice; liver tissues were assessed by hematoxylin-eosin staining and immunoblotting...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28039488/upar-targeted-optical-near-infrared-nir-fluorescence-imaging-and-pet-for-image-guided-surgery-in-head-and-neck-cancer-proof-of-concept-in-orthotopic-xenograft-model
#4
Anders Christensen, Karina Juhl, Morten Persson, Birgitte Wittenborg Charabi, Jann Mortensen, Katalin Kiss, Giedrius Lelkaitis, Niclas Rubek, Christian von Buchwald, Andreas Kjær
PURPOSE: Urokinase-like Plasminogen Activator Receptor (uPAR) is overexpressed in a variety of carcinoma types, and therefore represents an attractive imaging target. The aim of this study was to assess the feasibility of two uPAR-targeted probes for PET and fluorescence tumor imaging in a human xenograft tongue cancer model. EXPERIMENTAL DESIGN AND RESULTS: Tumor growth of tongue cancer was monitored by bioluminescence imaging (BLI) and MRI. Either ICG-Glu-Glu-AE105 (fluorescent agent) or 64Cu-DOTA-AE105 (PET agent) was injected systemically, and fluorescence imaging or PET/CT imaging was performed...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27991579/serum-soluble-urokinase-type-plasminogen-activator-receptor-as-a-biological-marker-of-bacterial-infection-in-adults-a-systematic-review-and-meta-analysis
#5
Wentao Ni, Yuliang Han, Jin Zhao, Junchang Cui, Kai Wang, Rui Wang, Youning Liu
The serum concentration of soluble urokinase-type plasminogen activator receptor (suPAR) reflects immune activation. We performed a meta-analysis to evaluate the usefulness of suPAR for the diagnosis and prognosis of bacterial infections. PubMed, Embase and Cochrane Library databases were searched for studies reporting the detection of suPAR in adult patients with bacterial infections. Seventeen studies were selected from 671 studies. The pooled sensitivity and specificity of suPAR for diagnosing infection were 0...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27986809/urokinase-type-plasminogen-activator-upa-binding-to-the-upa-receptor-upar-promotes-axonal-regeneration-in-the-central-nervous-system
#6
Paola Merino, Ariel Diaz, Valerie Jeanneret, Fang Wu, Enrique Torre, Lihong Cheng, Manuel Yepes
Axonal injury is a common cause of neurological dysfunction. Unfortunately, in contrast to axons from the peripheral nervous system, the limited capacity of regeneration of central nervous system (CNS) axons is a major obstacle for functional recovery in patients suffering neurological diseases that involve the subcortical white matter. Urokinase-type plasminogen activator (uPA) is a serine proteinase that upon binding to the urokinase-type plasminogen activator receptor (uPAR) catalyzes the conversion of plasminogen into plasmin on the cell surface...
December 16, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27974318/a-perspective-on-chronic-kidney-disease-progression
#7
Jianyong Zhong, HaiChun Yang, Agnes B Fogo
Chronic kidney disease (CKD) will progress to end stage without treatment, but the decline of renal function may not be linear. Compared to GFR and proteinuria, new surrogate markers, such as KIM-1, NGAL, apoA-IV, and soluble urokinase receptor (suPAR), may allow potential intervention and treatment in the earlier stages of CKD, which could be useful for clinical trials. New omic-based technologies reveal potential new genomic and epigenomic mechanisms which appear different from those causing the initial disease...
December 14, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27941791/bone-marrow-derived-immature-myeloid-cells-are-a-main-source-of-circulating-supar-contributing-to-proteinuric-kidney-disease
#8
Eunsil Hahm, Changli Wei, Isabel Fernandez, Jing Li, Nicholas J Tardi, Melissa Tracy, Shikha Wadhwani, Yanxia Cao, Vasil Peev, Andrew Zloza, Jevgenijs Lusciks, Salim S Hayek, Christopher O'Connor, Markus Bitzer, Vineet Gupta, Sanja Sever, David B Sykes, David T Scadden, Jochen Reiser
Excess levels of protein in urine (proteinuria) is a hallmark of kidney disease that typically occurs in conjunction with diabetes, hypertension, gene mutations, toxins or infections but may also be of unknown cause (idiopathic). Systemic soluble urokinase plasminogen activator receptor (suPAR) is a circulating factor implicated in the onset and progression of chronic kidney disease (CKD), such as focal segmental glomerulosclerosis (FSGS). The cellular source(s) of elevated suPAR associated with future and progressing kidney disease is unclear, but is likely extra-renal, as the pathological uPAR is circulating and FSGS can recur even after a damaged kidney is replaced with a healthy donor organ...
January 2017: Nature Medicine
https://www.readbyqxmd.com/read/27930543/left-branch-of-portal-vein-thrombosis-in-a-liver-transplant-recipient-with-donation-after-cardiac-death-donor-a-case-report
#9
Maogen Chen, Weiqiang Ju, Xiaohong Lin, Qiang Zhao, Dongping Wang, Xiaoshun He
INTRODUCTION: Portal vein thrombosis (PVT) is one of the most severe complications after liver transplantation, which usually causes graft loss and recipient mortality. The founding of the embolic branch of portal system and its result are not well described in the literature. CLINICAL FINDINGS AND DIAGNOSES: We report here an unusual case of complete right branch thrombosis of portal vein after orthotopic liver transplantation from a donation after cardiac death donor, without obvious malaise...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27896225/the-urokinase-urokinase-receptor-system-in-mast-cells-effects-of-its-functional-interaction-with-fmlf-receptors
#10
Francesca Wanda Rossi, Nella Prevete, Felice Rivellese, Filomena Napolitano, Nunzia Montuori, Loredana Postiglione, Carmine Selleri, Amato de Paulis
Mast cell and basophils express the high affinity receptor for IgE (FcɛRI) and are primary effector cells of allergic disorders. The urokinase (uPA)-mediated plasminogen activation system is involved in physiological and pathological events based on cell migration and tissue remodelling, such as inflammation, wound healing, angiogenesis and metastasis. uPA is a serine protease that binds uPAR, a high affinity glycosyl-phosphatidyl-inositol (GPI)-anchored receptor. uPAR focuses uPA activity at the cell surface and activates intracellular signaling through lateral interactions with integrins, receptor tyrosine kinases and the G-protein-coupled family of fMLF chemotaxis receptors (FPRs)...
November 2016: Translational Medicine @ UniSa
https://www.readbyqxmd.com/read/27845864/procoagulant-substance-and-mechanism-of-myristica-fragrans
#11
Yong Zhang, Pingyao Xie, Xiuchun Guo, Wenyi Kang
The effect and mechanisms of Myristica fragrans on blood clotting were evaluated by evaluating blood coagulation time and the fibrinolytic system. The compounds 2 and 5 were isolated from the herbal extract and their activities were assessed for the first time. None of the tested compounds had fibrinolytic activity, but could inhibit the fibrinolytic activity of urokinase. Compound 2 showed the highest inhibitory activity (IC50 = 1.747 mg·mL(-1)) followed by compounds 4 (IC50 = 1.818 mg·mL(-1)) and 1 (IC50 = 2...
November 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27794105/use-of-a-proximity-extension-assay-proteomics-chip-to-discover-new-biomarkers-associated-with-albuminuria
#12
Axel C Carlsson, Johan Sundström, Juan Jesus Carrero, Stefan Gustafsson, Markus Stenemo, Anders Larsson, Lars Lind, Johan Ärnlöv
Background The underlying mechanisms for the development of albuminuria and the increased cardiovascular risk in patients with elevated albuminuria levels are incompletely understood. We therefore investigated the associations between 80 cardiovascular proteins and the urinary albumin to creatinine ratio (ACR). Methods We used a discovery/replication approach in two independent community-based cohorts of elderly patients: the Uppsala Longitudinal Study of Adult Men ( n = 662; mean age 78 years) and the Prospective Investigation of the Vasculature in Uppsala Seniors ( n = 757; mean age 75 years; 51% women)...
January 1, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27777264/cell-coupling-mediated-by-connexin-26-selectively-contributes-to-reduced-adhesivity-and-increased-migration
#13
Srikanth R Polusani, Edward A Kalmykov, Anjana Chandrasekhar, Shoshanna N Zucker, Bruce J Nicholson
Gap junction proteins (connexins) have crucial effects on cell motility in many systems, from migration of neural crest cells to promotion of metastatic invasiveness. Here, we show that expression of Cx26 (also known as GJB2) in HeLa cells specifically enhances cell motility in scrape wounding and sparse culture models. This effect is dependent on gap junction channels and is isotype specific [Cx26 enhances motility, whereas Cx43 (also known as GJA1) does not and Cx32 (also known as GJB1) has an intermediate effect]...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27771157/the-diagnostic-value-of-soluble-urokinase-plasminogen-activator-receptor-supar-compared-to-c-reactive-protein-crp-and-procalcitonin-pct-in-children-with-systemic-inflammatory-response-syndrome-sirs
#14
Melis Şirinoğlu, Ahmet Soysal, Ayşe Karaaslan, Eda Kepenekli Kadayifci, Nilüfer Yalındağ-Öztürk, İsmail Cinel, Ali Yaman, Goncagül Haklar, Önder Şirikci, Serap Turan, Gülşen Altınkanat Gelmez, Güner Söyletir, Mustafa Bakır
BACKGROUND: The aim of the present study was to determine the diagnostic and prognostic values of suPAR and to compare them to CRP and PCT in pediatric patients with systemic inflammatory response syndrome (SIRS). MATERIAL-METHODS: A prospective case-control study was performed.The study was performed in a tertiary university hospital which has a 649-bed capacity. Patients included 27 children with SIRS and 27 control subjects without any infection or immunosuppressive condition...
January 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27759946/serum-soluble-urokinase-type-plasminogen-activator-receptor-as-a-serum-marker-of-inflammatory-response-that-leads-to-tissue-damage-and-surgical-complication
#15
Emiliano Tognoli, Matteo Luigi Giuseppe Leoni, Daniele Morelli, Elisa Sottotetti, Antonia Martinetti, Stefano Signoroni, Carlotta Galeone, Gianfranco Gallino
Unrestrained activation of the proteolytic systems in anastomotic tissue during repair has been implicated in the pathogenesis of anastomotic leakage. We hypothesized that this mechanism may promote an up-regulation of the urokinase-type plasminogen activator system and a spillover of soluble urokinase-type plasminogen activator receptor (suPAR) into blood. In this retrospective analysis patients with anastomotic leakage were compared with a group of matched uncomplicated patients. Anastomotic leakage complicated patients had significantly higher suPAR (p = 0...
November 2016: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/27729618/antibody-based-pet-of-upa-upar-signaling-with-broad-applicability-for-cancer-imaging
#16
Dongzhi Yang, Gregory W Severin, Casey A Dougherty, Rachel Lombardi, Daiqin Chen, Marcian E Van Dort, Todd E Barnhart, Brian D Ross, Andrew P Mazar, Hao Hong
Mounting evidence suggests that the urokinase plasminogen activator (uPA) and its receptor (uPAR) play a central role in tumor progression. The goal of this study was to develop an 89Zr-labeled, antibody-based positron emission tomography (PET) tracer for quantitative imaging of the uPA/uPAR system. An anti-uPA monoclonal antibody (ATN-291) was conjugated with a deferoxamine (Df) derivative and subsequently labeled with 89Zr. Flow cytometry, microscopy studies, and competitive binding assays were conducted to validate the binding specificity of Df-ATN-291 against uPA...
October 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27723266/effects-of-tgf-%C3%AE-1-on-plasminogen-activation-in-human-dental-pulp-cells-role-of-alk5-smad2-tak1-and-mek-erk-signaling
#17
Mei-Chi Chang, Hsiao-Hua Chang, Po-Shuan Lin, Yu-An Huang, Chiu-Po Chan, Yi-Ling Tsai, Shen-Yang Lee, Po-Yuan Jeng, Han-Yueh Kuo, Sin-Yuet Yeung, Jiiang-Huei Jeng
Transforming growth factor-β1 (TGF-β1) plays an important role in the pulpal repair and dentinogenesis. Plasminogen activation (PA) system regulates extracellular matrix turnover. In this study, we investigated the effects of TGF-β1 on PA system of dental pulp cells and its signaling pathways. Dental pulp cells were treated with different concentrations of TGF-β1. MTT assay, reverse transcription-polymerase chain reaction (RT-PCR), western blotting and enzyme-linked immunosorbant assay (ELISA) were used to detect the effect of TGF-β1 on cell viability, mRNA and protein expression of urokinase-type plasminogen activator (uPA), uPA receptor (uPAR), plasminogen activator inhibitor-1 (PAI-1) as well as their secretion...
October 9, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27713627/elevated-circulating-pai-1-levels-are-related-to-lung-function-decline-systemic-inflammation-and-small-airway-obstruction-in-chronic-obstructive-pulmonary-disease
#18
Hao Wang, Ting Yang, Diandian Li, Yanqiu Wu, Xue Zhang, Caishuang Pang, Junlong Zhang, Binwu Ying, Tao Wang, Fuqiang Wen
BACKGROUND: Plasminogen activator inhibitor-1 (PAI-1) and soluble urokinase-type plasminogen activator receptor (suPAR) participate in inflammation and tissue remolding in various diseases, but their roles in chronic obstructive pulmonary disease (COPD) are not yet clear. This study aimed to investigate if PAI-1 and suPAR were involved in systemic inflammation and small airway obstruction (SAO) in COPD. METHODS: Demographic and clinical characteristics, spirometry examination, and blood samples were obtained from 84 COPD patients and 51 healthy volunteers...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27696935/the-evolution-of-recombinant-thrombolytics-current-status-and-future-directions
#19
Yogender Pal Khasa
Cardiovascular disorders are on the rise worldwide due to alcohol abuse, obesity, hypertension, raised blood lipids, diabetes and age-related risks. The use of classical antiplatelet and anticoagulant therapies combined with surgical intervention helped to clear blood clots during the inceptive years. However, the discovery of streptokinase and urokinase ushered the way of using these enzymes as thrombolytic agents to degrade the fibrin network with an issue of systemic hemorrhage. The development of second generation plasminogen activators like anistreplase and tissue plasminogen activator partially controlled this problem...
October 3, 2016: Bioengineered
https://www.readbyqxmd.com/read/27683525/the-clinical-value-of-soluble-urokinase-plasminogen-activator-receptor-supar-levels-in-autoimmune-connective-tissue-disorders
#20
Barna Vasarhelyi, Gergely Toldi, Attila Balog
The assessment of the general inflammatory condition of patients with autoimmune connective tissue disorders (ACTD) is a major challenge. The use of traditional inflammatory markers including CRP-levels and erythrocyte sedimentation rate (ESR) is limited by several preanalytical factors and their low specificities. Soluble urokinase plasminogen activator receptor (suPAR) is one of the novel candidate markers that is increasingly used in immune mediated disorders. In our studies we compared suPAR levels of patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and ankylosing spondylitis with those of healthy controls...
April 2016: EJIFCC
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