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https://www.readbyqxmd.com/read/28210916/a-multiscale-mathematical-model-of-tumour-invasive-growth
#1
Lu Peng, Dumitru Trucu, Ping Lin, Alastair Thompson, Mark A J Chaplain
Known as one of the hallmarks of cancer (Hanahan and Weinberg in Cell 100:57-70, 2000) cancer cell invasion of human body tissue is a complicated spatio-temporal multiscale process which enables a localised solid tumour to transform into a systemic, metastatic and fatal disease. This process explores and takes advantage of the reciprocal relation that solid tumours establish with the extracellular matrix (ECM) components and other multiple distinct cell types from the surrounding microenvironment. Through the secretion of various proteolytic enzymes such as matrix metalloproteinases or the urokinase plasminogen activator (uPA), the cancer cell population alters the configuration of the surrounding ECM composition and overcomes the physical barriers to ultimately achieve local cancer spread into the surrounding tissue...
February 16, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28209486/vasodilator-stimulated-phosphoprotein-vasp-depletion-from-breast-cancer-mda-mb-231-cells-inhibits-tumor-spheroid-invasion-through-downregulation-of-migfilin-%C3%AE-catenin-and-urokinase-plasminogen-activator-upa
#2
Vasiliki Gkretsi, Andreas Stylianou, Triantafyllos Stylianopoulos
A hallmark of cancer cells is their ability to invade surrounding tissues and form metastases. Cell-extracellular matrix (ECM)-adhesion proteins are crucial in metastasis, connecting tumor ECM with actin cytoskeleton thus enabling cells to respond to mechanical cues. Vasodilator-stimulated phosphoprotein (VASP) is an actin-polymerization regulator which interacts with cell-ECM adhesion protein Migfilin, and regulates cell migration. We compared VASP expression in MCF-7 and MDA-MB-231 breast cancer (BC) cells and found that more invasive MDA-MB-231 cells overexpress VASP...
February 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28207534/a-case-control-study-on-the-structural-equation-model-of-the-mechanism-of-coagulation-and-fibrinolysis-imbalance-in-chronic-schistosomiasis
#3
Aiping Le, Lunli Zhang, Wei Liu, Xiaopeng Li, Jianwei Ren, An Ning
A structural equation model was used for verification with chronic schistosomiasis to investigate the coagulation-anticoagulation system imbalance and to deduce the mechanism of D-dimer (D-D) level elevation in patients with advanced schistosome hepatic disease. We detected the plasma levels of tissue-type fiber plasminogen activator (tPA), urokinase type plasminogen activator (uPA), plasmin-antiplasmin complex (PAP), plasminogen (PLG), antithrombin (AT), plasminogen activator inhibitor 1 (PAI1), D-D, factor VIII: C (FVIII:C), antithrombin-III (AT-III), PLG, protein S (PS), and protein C (PC) in the healthy people as control (69), patients with chronic schistosomiasis (150) or advanced chronic schistosomiasis (90)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28198346/characterization-of-two-new-putative-adhesins-of-leptospira-interrogans
#4
Jupciana M Figueredo, Gabriela H Siqueira, Gisele O de Souza, Marcos B Heinemann, Silvio A Vasconcellos, Erica G B Chapola, Ana L T O Nascimento
We here report the characterization of two novel proteins encoded by the genes LIC11122 and LIC12287, identified in the genome sequences of Leptospira interrogans, annotated, respectively, as a putative sigma factor and a hypothetical protein. The CDSs LIC11122 and LIC12287 have signal peptide SPII and SPI and are predicted to be located mainly at the cytoplasmic membrane of the bacteria. The genes were cloned and the proteins expressed using Escherichia coli. Proteinase K digestion showed that both proteins are surface exposed...
January 2017: Microbiology
https://www.readbyqxmd.com/read/28193671/safe-and-effective-sarcoma-therapy-through-bispecific-targeting-of-egfr-and-upar
#5
Antonella Borgatti, Joseph S Koopmeiners, Aaron L Sarver, Amber L Winter, Kathleen Stuebner, Deborah Todhunter, Anthony E Rizzardi, Jonathan C Henricksen, Stephen Schmechel, Colleen L Forster, Jong-Hyuk Kim, Jerry Froelich, Jillian Walz, Michael S Henson, Matthew Breen, Kerstin Lindblad-Toh, Felix Oh, Kristy Pilbeam, Jaime F Modiano, Daniel A Vallera
Sarcomas differ from carcinomas in their mesenchymal origin. Therapeutic advancements have come slowly so alternative drugs and models are urgently needed. These studies report a new drug for sarcomas that simultaneously targets both tumor and tumor neovasculature. eBAT is a bispecific angiotoxin consisting of truncated, deimmunized Pseudomonas exotoxin fused to epidermal growth factor (EGF) and the amino terminal fragment (ATF) of urokinase. Here, we study the drug in an in vivo "ontarget" companion dog trial since eBAT effectively kills canine hemangiosarcoma (HSA) and human sarcoma cells in vitro...
February 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28184959/endovascular-treatment-strategy-using-catheter-directed-thrombolysis-percutaneous-aspiration-thromboembolectomy-and-angioplasty-for-acute-upper-limb-ischemia
#6
Tatsuo Ueda, Satoru Murata, Izumi Miki, Daisuke Yasui, Fumie Sugihara, Hiroyuki Tajima, Tetsuro Morota, Shin-Ichiro Kumita
PURPOSE: To evaluate the usefulness and safety of endovascular treatments for acute upper limb ischemia (AULI) by using multiple techniques, and to compare catheter-directed thrombolysis (CDT) and percutaneous aspiration thromboembolectomy (PAT) as initial procedures. MATERIALS AND METHODS: The study included 18 patients (4 men and 14 women) with AULI, who underwent a total of 20 sessions of endovascular treatment using various endovascular techniques between January 2005 and April 2016...
February 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28182117/fibrin-sheaths-in-central-venous-port-catheters-treatment-with-low-dose-single-injection-of-urokinase-on-an-outpatient-basis
#7
De-Hua Chang, Kamal Mammadov, Tilman Hickethier, Jan Borggrefe, Martin Hellmich, David Maintz, Christoph Kabbasch
PURPOSE: Evaluation of the efficacy of single-shot, low-dose urokinase administration for the treatment of port catheter-associated fibrin sheaths. METHODS: Forty-six patients were retrospectively evaluated for 54 episodes of port catheter dysfunction. The presence of a fibrin sheath was detected by angiographic contrast examinations. On an outpatient basis, patients subsequently received thrombolysis consisting of a single injection of urokinase (15.000 IU in 1...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28174635/successful-evacuation-of-large-perirenal-hematoma-after-extracorporeal-shock-wave-lithotripsy-eswl-step-1-of-the-ideal-recommendations-of-surgical-innovation
#8
Steffen Hallmann, Jan Petersein, Jürgen Ruttloff, Thorsten H Ecke
Larger perirenal hematomas after extracorporeal shock wave lithotripsy (ESWL) are sometimes related to the loss of renal function due to compression of the normal renal tissue. After computed tomography-guided drainage and locally applied urokinase, the hematoma was fractionally evacuated. This procedure is a save and fast way to recover normal renal function.
February 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28170292/heparanase-mediates-intestinal-inflammation-and-injury-in-a-mouse-model-of-sepsis
#9
Song Chen, Ying He, Ziwei Hu, Siyu Lu, Xiaohan Yin, Xiaochun Ma, Chuanzhu Lv, Guiyun Jin
Heparanase, a heparan sulfate (HS)-specific endoglycosidase, plays an important role in inflammation and mediates acute pulmonary and renal injuries during sepsis. To explore its role in septic intestinal injury, a non-anticoagulant heparanase inhibitor, N-desulfated/re- N-acetylated heparin (NAH), was administrated to a mouse sepsis model induced by cecal ligation and puncture (CLP). Immunohistochemical staining revealed massive shedding of HS from the intestinal mucosal surfaces after CLP, and effective inhibition of heparanase by NAH was confirmed by markedly reduced HS shedding...
January 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28159489/atorvastatin-from-target-screening-attenuates-endothelial-cell-tube-formation-and-migration-by-regulating-urokinase-receptor-related-signaling-pathway-and-f-g-actin
#10
Li Wei, Jin-Shuen Chen, Hsin-Ting Lin, Chung-Ze Wu, Cai-Mei Zheng, Yu-Ching Chang, Li-Chien Chang, Yuh-Feng Lin
BACKGROUND: Angiogenesis and cytoskeletal transformation are common denominators of many pathological developments. The relationship between angiogenesis, urokinase plasminogen activator receptor (uPAR) signaling pathway, and cytoskeletal transformation is still unknown. In this study, a pGL3-uPAR promoter reporter system combined with Bio-Plex mRNA analysis was established for discovering uPAR modulators to analyze this interconnection. METHODS: After screening a set of clinically used drugs, atorvastatin (Ator) was found to significantly affect uPAR expression and its ideal dose, 1 μM, was determined for cell study...
January 31, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28158911/multiparity-upregulates-placental-plasminogen-and-urokinase-type-plasminogen-activator
#11
María E Cortina, Silvana Litwin, María R Rial Hawila, Silvia Miranda
PROBLEM: Multiparity increased the number of trophoblast cells in decidua of both low and high fetal loss mouse models. However, they differ in fetal survival rate and maternal thymocyte subpopulations, suggesting that trophoblast invasiveness is not equivalent. Our aim was to explore the involved mechanism. METHOD OF STUDY: We studied placentae from primiparous and multiparous females of low and high fetal loss models. We investigated invasiveness in vitro, expression of plasminogen, and its activators: tissue type (tPA)-urokinase type (uPA), and activity and expression of matrix metalloproteinases (MMP)-2 and MMP-9...
February 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28157467/tuberculosis-case-finding-and-mortality-prediction-added-value-of-the-clinical-tbscore-and-biomarker-supar
#12
F Rudolf, A-J Wagner, F M Back, V F Gomes, P Aaby, L Østergaard, J Eugen-Olsen, C Wejse
SETTING: A suburban area of Bissau, the capital of Guinea-Bissau; the study was conducted among presumptive pulmonary tuberculosis (prePTB) patients seeking medical care for signs and symptoms suggestive of PTB. OBJECTIVE: To determine if a clinical TB score and a biomarker suPAR (soluble urokinase plasminogen activator receptor) have separate and composite ability to predict PTB diagnosis and mortality in prePTB patients. DESIGN: Observational prospective follow-up study conducted from August 2010 to August 2012...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28141486/usefulness-of-humanized-cdna-upa-scid-mice-for-the-study-of-hepatitis-b-virus-and-hepatitis-c-virus-virology
#13
Takuro Uchida, Michio Imamura, Hiromi Kan, Nobuhiko Hiraga, C Nelson Hayes, Masataka Tsuge, Hiromi Abe-Chayama, Hiroshi Aikata, Grace Naswa Makokha, Daiki Miki, Hidenori Ochi, Yuji Ishida, Chise Tateno, Kazuaki Chayama
Urokinase-type plasminogen activator-severe combined immunodeficiency (uPA/SCID) mice transplanted with human hepatocytes are permissive for hepatitis B virus (HBV) and hepatitis C virus (HCV) infection. However, one of the problems affecting uPA transgenic mice is the expansion of mouse hepatocyte colonies due to homologous recombination of the uPA gene. In this study, we attempted to infect HBV and HCV in humanized cDNA-uPA/SCID mice, a novel uPA transgenic mouse model designed to overcome this disadvantage...
January 28, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28139758/the-fibrogenic-actions-of-lung-fibroblast-derived-urokinase-a-potential-drug-target-in-ipf
#14
Michael Schuliga, Jade Jaffar, Trudi Harris, Darryl A Knight, Glen Westall, Alastair G Stewart
The role of urokinase plasminogen activator (uPA) in idiopathic pulmonary fibrosis (IPF) remains unclear. uPA-generated plasmin has potent fibrogenic actions involving protease activated receptor-1 (PAR-1) and interleukin-6 (IL-6). Here we characterize uPA distribution or levels in lung tissue and sera from IPF patients to establish the mechanism of its fibrogenic actions on lung fibroblasts (LFs). uPA immunoreactivity was detected in regions of fibrosis including fibroblasts of lung tissue from IPF patients (n = 7)...
January 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28135310/serum-soluble-urokinase-type-plasminogen-activator-receptor-is-associated-with-low-left-ventricular-ejection-fraction-and-elevated-plasma-brain-type-natriuretic-peptide-level
#15
Shu-Ichi Fujita, Suguru Tanaka, Daichi Maeda, Hideaki Morita, Tomohiro Fujisaka, Yoshihiro Takeda, Takahide Ito, Nobukazu Ishizaka
BACKGROUND: Recent studies have suggested that soluble urokinase plasminogen activator receptor (suPAR), a biomarker of subclinical levels of inflammation, is significantly correlated with cardiovascular events. PURPOSE: We investigated the association between suPAR and left ventricular ejection fraction (LVEF), left ventricular mass index (LVMI), and plasma B-type natriuretic peptide (BNP) among cardiac inpatients. METHODS AND RESULTS: In total, 242 patients (mean age 71...
2017: PloS One
https://www.readbyqxmd.com/read/28133174/-a-case-of-pulmonary-embolism-developed-during-combination-chemotherapy-with-s-1-and-cisplatin-in-a-young-female-patient-with-type-4gastric-cancer
#16
Noboru Kobayashi, Kazuyoshi Yamamoto, Kiyotaka Hagihara, Kazuhiro Nishikawa, Motohiro Hirao, Sakae Maeda, Mamoru Uemura, Masakazu Miyake, Naoki Hama, Atsushi Miyamoto, Michihiko Miyazaki, Masataka Ikeda, Shoji Nakamori, Mitsugu Sekimoto
We report a case of a 23-year-old womanwho developed pulmonary embolism(PE)during chemotherapy for advanced gastric cancer following total gastrectomy(R1). She presented with type 4 gastric cancer with peritoneal dissemination and positive washing cytology. Palliative total gastrectomy was performed(R1)and first-line chemotherapy with S-1(80mg/m2, days 1 to 21) plus CDDP(60mg/m2, day 8)(SP; every 35 days)was administered. PE occurred on day 15 of the 3rd courses of SP. Computed tomography(CT)revealed massive PE in both the pulmonary arteries, and ultrasonography indicated an increase in right-sided pressure...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28122514/indoxyl-sulfate-the-uremic-toxin-linking-hemostatic-system-disturbances-with-the-prevalence-of-cardiovascular-disease-in-patients-with-chronic-kidney-disease
#17
Tomasz W Kamiński, Krystyna Pawlak, Małgorzata Karbowska, Michał Myśliwiec, Dariusz Pawlak
BACKGROUND: During chronic kidney disease progression, kidney-specific risk factors for cardiovascular disease come into play. The present study investigated the impact of indoxyl sulfate, dietary tryptophan-derived uremic toxin, accumulated in the blood of patients with chronic kidney disease on hemostatic parameters, markers of inflammation, oxidative stress and monocyte to macrophage transition. METHODS: Fifty-one CKD patients not undergoing hemodialysis were enrolled in the study...
January 25, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28118037/downregulation-of-extracellular-matrix-metalloproteinase-inducer-by-scfv-m6-1b9-intrabody-suppresses-cervical-cancer-invasion-through-inhibition-of-urokinase-type-plasminogen-activator
#18
Tipattaraporn Panich, Khajornsak Tragoolpua, Supansa Pata, Chatchai Tayapiwatana, Nutjeera Intasai
Overexpression of extracellular matrix metalloproteinase inducer (EMMPRIN) accelerates tumor invasion and metastasis via activation of matrix metalloproteinases (MMPs) and urokinase-type plasminogen activator (uPA) expression. The authors were interested in whether the scFv-M6-1B9 intrabody against EMMPRIN that retains EMMPRIN in endoplasmic reticulum could be a potential tool to suppress cervical cancer invasion through inhibition of uPA. The chimeric adenoviral vector Ad5/F35-scFv-M6-1B9 was transferred into human cervical carcinoma HeLa cells to produce the scFv-M6-1B9 intrabody against EMMPRIN...
February 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28116631/translational-initiatives-in-thrombolytic-therapy
#19
REVIEW
Melvin E Klegerman
Once thrombi have formed as part of the pathology defining myocardial infarction, ischemic stroke, peripheral arterial disease, deep venous thrombosis or other embolic disorders, the only clinically meaningful thrombolytic agents available for reversing the thrombogenic process are various plasminogen activators. These agents are enzymes that reverse fibrin polymerization underlying the coagulation process by converting endogenous plasminogen to plasmin, which cleaves the fibrin network to form increasingly smaller protein fragments, a process known as fibrinolysis...
January 23, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28105731/liraglutide-effects-on-cardiovascular-risk-biomarkers-in-patients-with-type-2-diabetes-and-albuminuria-a-sub-analysis-of-a-randomised-placebo-controlled-double-blind-cross-over-trial
#20
Bernt Johan von Scholten, Frederik Persson, Signe Rosenlund, Jesper Eugen-Olsen, Tomasz Pielak, Jens Faber, Tine Willum Hansen, Peter Rossing
: We assessed the effects of liraglutide treatment on five cardiovascular risk biomarkers, reflecting different pathophysiology: 1) Tumour necrosis factor-alpha (TNF-alpha); 2) Soluble urokinase plasminogen activator receptor (suPAR); 3) Mid-regional pro-adrenomedullin (MR-proADM); 4) Mid-regional pro-atrial natriuretic peptide (MR-proANP); and 5) Copeptin, in type 2 diabetes patients with albuminuria. In a randomised, double-blind, placebo-controlled, cross-over trial we enrolled patients with type 2 diabetes and persistent albuminuria (urinary albumin-to-creatinine ratio (UACR) > 30 mg/g) and estimated glomerular filtration rate (eGFR) ≥ 30 mL/min/1...
January 20, 2017: Diabetes, Obesity & Metabolism
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