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https://www.readbyqxmd.com/read/28429356/thrombolysis-in-acute-stroke-without-angiographically-documented-occlusion
#1
M-C Shi, F-N Chu, C Li, S-C Wang
OBJECTIVE: The aim of this study was to evaluate the safety and efficacy of intra-arterial thrombolysis (IAT) using urokinase (UK) in acute stroke patients without angiographically-documented occlusion, and to define predictors of clinical outcome. PATIENTS AND METHODS: We analyzed clinical and radiological data of acute ischemic stroke patients whose angiography did not show an arterial occlusion within six hours of symptom onset and who were further treated with IAT using UK...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28429105/increased-expression-of-upa-upar-and-pai-1-in-psoriatic-skin-and-in-basal-cell-carcinomas
#2
K A Rubina, V Yu Sysoeva, E I Zagorujko, Z I Tsokolaeva, M I Kurdina, Ye V Parfyonova, V A Tkachuk
There is substantial evidence implicating the urokinase system in tissue remodeling during neo-vascularization, inflammation, tumor invasion, and metastasis. Regulated degradation of the extracellular matrix at the leading edge of migrating cells, mediated by uPA and uPAR, is required for tissue remodeling, invasiveness, and angiogenesis. Psoriasis and basal cell carcinoma (BCC) are the most common skin diseases. Pathogenesis of both of them is associated with keratinocyte hyperproliferation, inflammatory cell migration, and angiogenesis-processes in which the plasminogen system (uPA, uPAR, tPA, and PAI-1) plays a crucial role...
April 20, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28423706/identification-of-ras-suppressor-1-rsu-1-as-a-potential-breast-cancer-metastasis-biomarker-using-a-three-dimensional-in-vitro-approach
#3
Vasiliki Gkretsi, Andreas Stylianou, Maria Louca, Triantafyllos Stylianopoulos
Breast cancer (BC) is the most common malignant disease in women, with most patients dying from metastasis to distant organs, making discovery of novel metastasis biomarkers and therapeutic targets imperative. Extracellular matrix (ECM)-related adhesion proteins as well as tumor matrix stiffness are important determinants for metastasis. As traditional two-dimensional culture does not take into account ECM stiffness, we employed 3-dimensional collagen I gels of increasing concentration and stiffness to embed BC cells of different invasiveness (MCF-7, MDA-MB-231 and MDA-MB-231-LM2) or tumor spheroids...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416743/the-urokinase-plasminogen-activation-system-in-gastroesophageal-cancer-a-systematic-review-and-meta-analysis
#4
Daniel Brungs, Julia Chen, Morteza Aghmesheh, Kara L Vine, Therese M Becker, Martin G Carolan, Marie Ranson
BACKGROUND: The urokinase plasminogen activation (uPA) system is a crucial pathway for tumour invasion and establishment of metastasis. Although there is good evidence that uPA system expression is a clinically relevant biomarker in some solid tumours, its role in gastroesophageal cancer is uncertain. RESULTS: We identified 22 studies encompassing 1966 patients which fulfilled the inclusion criteria. uPA, uPAR, or PAI-1 expression is significantly associated with high risk clinicopathological features...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415617/upregulation-of-cftr-in-patients-with-endometriosis-and-its-involvement-in-nf%C3%AE%C2%BAb-upar-dependent-cell-migration
#5
Wenqing Huang, Aihong Jin, Jieting Zhang, Chaoqun Wang, Lai Ling Tsang, Zhiming Cai, Xiaping Zhou, Hao Chen, Hsiao Chang Chan
Endometriotic tissues exhibit high migration ability with the underlying mechanisms remain elusive. Our previous studies have demonstrated that cystic fibrosis transmembrane conductance regulator (CFTR) acts as a tumor suppressor regulating cell migration. In the present study, we explored whether CFTR plays a role in the development of human endometriosis. We found that both mRNA and protein expression levels of CFTR and urokinase-type plasminogen activator receptor (uPAR) were significantly increased in ectopic endometrial tissues from patients with endometriosis compared to normal endometrial tissues from women without endometriosis and positively correlated...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28405670/a-long-acting-pai-1-inhibitor-reduce-thrombus-formation
#6
Shuangzhou Peng, Guangpu Xue, Lihu Gong, Chao Fang, Jingfei Chen, Cai Yuan, Zhuo Chen, Lishan Yao, Bruce Furie, Mingdong Huang
Plasminogen activator inhibitor 1 (PAI-1) is the main inhibitor of tissue-type and urokinase-type plasminogen activators (t/uPA) and plays an important role in the fibrinolytic system. Inhibition of PAI-1 activity prevents thrombosis and accelerates fibrinolysis, indicating that PAI-1 inhibitors may be used as effective antithrombotic agents. We previously designed a PAI-1 inhibitor (PAItrap) which is a variant of inactivated urokinase protease domain. In the present study, we tried to fuse PAItrap with human serum albumin (HSA) to develop a long-acting PAI-1 inhibitor...
April 13, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28404945/urokinase-plasminogen-activator-secreted-by-cancer-associated-fibroblasts-induces-tumor-progression-via-pi3k-akt-and-erk-signaling-in-esophageal-squamous-cell-carcinoma
#7
Baoqing Tian, Xiaojia Chen, Huihua Zhang, Xiaoyan Li, Jiakang Wang, Wei Han, Li-Yi Zhang, Li Fu, Yan Li, Changjun Nie, Ying Zhao, Xuan Tan, Hailong Wang, Xin-Yuan Guan, An Hong
Cancer-associated fibroblasts (CAFs) are believed to influence tumor behavior and clinical outcomes. We previously showed that conditioned medium (CM) from CAFs induces proliferation and motility of esophageal squamous cell carcinoma (ESCC) cells. Here, we investigated the molecular mechanisms by which the CAF-secreted proteins induce ESCC development and progression. Using antibody arrays, we identified urokinase plasminogen activator (uPA) as one of the main proteins whose release was increased in CAFs compared to normal fibroblasts (NFs)...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402272/ginkgolic-acids-inhibit-migration-in-breast-cancer-cells-by-inhibition-of-nemo-sumoylation-and-nf-%C3%AE%C2%BAb-activity
#8
Sami Hamdoun, Thomas Efferth
Ginkgolic acids (GA), a group of alkyl phenols found in crude extracts of Ginkgo biloba leaves, are known to have anticancer activity, but their mode of action is not well understood. Our aim in this study was to investigate the anti-migratory activity of seven GA against breast cancer cells and to determine the molecular mechanism behind this activity. All seven GA and their mixture inhibited wound healing in MCF-7 and MDA-MB 231 breast cancer cells. None of the compounds nor the mixture showed cytotoxicity towards the two cell lines, if tested by the resazurin assay...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28397043/simvastatin-prevents-lipopolysaccharide-induced-septic-shock-in-rats
#9
Li Yu, Xing-Wen Da, Xiao-Ling Wu, Ao-di He, Ding Long
Simvastatin is a hypolipidemic drug that inhibits hydroxymethylglutaryl coenzyme A (HMG-CoA) reductase to control elevated cholesterol, or hypercholesterolemia. Previous studies have shown that simvastatin may attenuate inflammation in ischemia-reperfusion injury and sepsis. Herein, we hypothesized that simvastatin may prevent rats from lipopolysaccharide (LPS)-induced septic shock. In our study, rats were divided into a saline group, an LPS group and an LPS plus simvastatin group. Male Sprague-Dawley (SD) rats were pretreated with simvastatin (1 mg/kg) for 30 min before the addition of LPS (8 mg/kg), with variations in left ventricular pressure recorded throughout...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28395416/-application-of-percutaneous-angiojet-thrombectomy-in-patients-with-acute-symptomatic-portal-and-superior-mesenteric-venous-thrombosis
#10
J H Song, X He, W S Lou, L Chen, G P Chen, H B Su, W Y Shi, T Wang, B X Zhao, J P Gu
Objective: To evaluate the clinical value of percutaneous AngioJet thrombectomy in treatment of acute symptomatic portal and superior mesenteric venous thrombosis venous thrombosis (PVMVT) . Method: From January 2014 to January 2016, a total of 8 patients in Nanjing First Hospital with PVMVT verified by color Doppler ultrasound and computed tomographic angiography (CTA) were analyzed retrospectively. Under ultrasound guidance , the branch of the right portal vein(PV) was punctured with a micropuncture set and a 4-F infusion catheter was advanced to the superior mesenteric vein(SMV)...
April 4, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28393357/inflammatory-biomarkers-and-cancer-crp-and-supar-as-markers-of-incident-cancer-in-patients-with-serious-non-specific-symptoms-and-signs-of-cancer
#11
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 non-specific 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/28385810/regulation-of-p53-mediated-changes-in-the-upa-fibrinolytic-system-and-in-lung-injury-by-loss-of-surfactant-protein-c-expression-in-alveolar-epithelial-cells
#12
Bijesh Puthusseri, Amarnath S Marudamuthu, Nivedita Tiwari, Jian Fu, Steven Idell, Sreerama Shetty
Pulmonary surfactant protein-C (SP-C) expression by type II alveolar epithelial cells (AECs) is markedly reduced in diverse types of lung injuries and is often associated with AEC apoptosis. It is unclear whether loss of SP-C contributes to the increased p53 and urokinase-type plasminogen activator (uPA) system cross talk and apoptosis of AECs. We therefore inhibited SP-C expression in human and murine AECs using lentivirus vector expressing shRNA and tested p53 and downstream changes in uPA-fibrinolytic system...
April 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28383032/anti-tumour-activity-of-tivozanib-a-pan-inhibitor-of-vegf-receptors-in-therapy-resistant-ovarian-carcinoma-cells
#13
Majid Momeny, Zahra Sabourinejad, Ghazaleh Zarrinrad, Farima Moghaddaskho, Haniyeh Eyvani, Hassan Yousefi, Shahab Mirshahvaladi, Ensieh M Poursani, Farinaz Barghi, Arash Poursheikhani, Leila Dardaei, Davood Bashash, Mahmoud Ghazi-Khansari, Seyyed M Tavangar, Ahmad R Dehpour, Marjan Yaghmaie, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
Epithelial ovarian cancer (EOC) is the most fatal gynaecological malignancy. Despite initial therapeutic response, the majority of advanced-stage patients relapse and succumb to chemoresistant disease. Overcoming drug resistance is the key to successful treatment of EOC. Members of vascular endothelial growth factor (VEGF) family are overexpressed in EOC and play key roles in its malignant progression though their contribution in development of the chemoresistant disease remains elusive. Here we show that expression of the VEGF family is higher in therapy-resistant EOC cells compared to sensitive ones...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28379666/scube1-a-promising-biomarker-in-renal-cell-cancer
#14
Ersagun Karagüzel, Ahmet Menteşe, İlke O Kazaz, Selim Demir, Asım Örem, Ali Ertan Okatan, Diler Us Altay, Serap Özer Yaman
PURPOSE: To investigate the efficacy of signal peptide-CUB-EGF domain-containing protein 1 (SCUBE-1) as a novel biomarker of renal tumors. MATERIALS AND METHODS: 48 individuals were included in the study. The patient group (Group-1) consisted of 23 subjects diagnosed with renal tumor, and the control group (Group-2) of 25 healthy individuals. Patients diagnosed with renal tumor received surgical treatment consisting of radical or partial nephrectomy. Blood specimens were collected following overnight fasting...
April 6, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28378222/microbial-production-of-nattokinase-current-progress-challenge-and-prospect
#15
REVIEW
Dongbo Cai, Chengjun Zhu, Shouwen Chen
Nattokinase (EC 3.4.21.62) is a profibrinolytic serine protease with a potent fibrin-degrading activity, and it has been produced by many host strains. Compared to other fibrinolytic enzymes (urokinase, t-PA and streprokinase), nattokinase shows the advantages of having no side effects, low cost and long life-time, and it has the potential to be used as a drug for treating cardiovascular disease and served as a functional food additive. In this review, we focused on screening of producing strains, genetic engineering, fermentation process optimization for microbial nattokinase production, and the extraction and purification of nattokinase were also discussed in this particular chapter...
May 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28378106/plasminogen-activator-inhibitor-links-obesity-and-thrombotic-cerebrovascular-diseases-the-roles-of-pai-1-and-obesity-on-stroke
#16
REVIEW
Rui Chen, Jinchuan Yan, Peijing Liu, Zhongqun Wang, Cuiping Wang
One of the global socioeconomic phenomena occurred during the last decades is the increased prevalence of obesity, with direct consequence on the risk of developing thrombotic disorders. As the physiological inhibitor of tissue plasminogen activator (tPA) and urokinase plasminogen activator (uPA), plasminogen activator inhibitor-1 (PAI-1) is well known for its role in fibrinolysis. More and more evidences have shown that PAI-1 involves in physiopathologic mechanisms of many diseases and metabolic disorder. Increased serum level of PAI-1 has been observed in obesity and it also contributes to the development of adipose tissue and then has effects on obesity...
April 4, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28371048/duchesnea-indica-extract-suppresses-the-migration-of-human-lung-adenocarcinoma-cells-by-inhibiting-epithelial-mesenchymal-transition
#17
Pei-Ni Chen, Shun-Fa Yang, Cheng-Chia Yu, Chin-Yin Lin, Shih-Han Huang, Shu-Chen Chu, Yih-Shou Hsieh
Epithelial-mesenchymal transition (EMT) is a process through which epithelial cells are transformed into mesenchymal cells; EMT diminishes cell polarity and cell-cell adhesion in cancer cells, leading to enhanced migratory and invasive properties. In this experiment, zymography, cell invasion, and migration assays were performed. Results indicated that Duchesnea indica extracts (DIE) inhibited highly metastatic A549 and H1299 cells by reducing the secretions of matrix metalloproteinase-2 and urokinase-type plasminogen activator...
April 3, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28370884/detecting-in-vivo-urokinase-plasminogen-activator-activity-with-a-catalycest-mri-contrast-agent
#18
Sanhita Sinharay, Christine M Howison, Amanda F Baker, Mark D Pagel
Urokinase plasminogen activator (uPA) promotes tumor invasion and metastasis. The monitoring of uPA activity using molecular imaging may have prognostic value and be predictive for response to anti-cancer therapies. However, the detection of in vivo enzyme activity with molecular imaging remains a challenge. To address this problem, we designed a nonmetallic contrast agent, GR-4Am-SA, that can be detected with chemical exchange saturation transfer (CEST) MRI. This agent has a peptide that is cleaved by uPA, which causes a CEST signal at 5...
March 29, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28367534/soluble-urokinase-type-plasminogen-activator-receptor-supar-and-impaired-kidney-function-in-the-population-based-malm%C3%A3-diet-and-cancer-study
#19
Christina-Alexandra Schulz, Margaretha Persson, Anders Christensson, George Hindy, Peter Almgren, Peter M Nilsson, Olle Melander, Gunnar Engström, Marju Orho-Melander
INTRODUCTION: The soluble urokinase-type plasminogen activator receptor (suPAR) has recently been associated with a decline in kidney function and incidence of chronic kidney disease in patients with cardiovascular disease undergoing cardiac catheterization, yet little is known whether suPAR is associated with deterioration of kidney function in the general population. METHODS: In the population-based Malmö Diet and Cancer Study cohort, plasma levels of suPAR were quantified in 5381 participants at baseline (1991-1994), and creatinine was measured and used to calculate estimated glomerulus filtration rate (eGFR) at baseline and follow-up (2007-2012)...
March 2017: KI Reports
https://www.readbyqxmd.com/read/28364860/regulatory-effects-of-estetrol-on-the-endothelial-plasminogen-pathway-and-endothelial-cell-migration
#20
Maria Magdalena Montt-Guevara, Giulia Palla, Stefania Spina, Guja Bernacchi, Elena Cecchi, Adrian Esteban Campelo, Jorge Eduardo Shortrede, Alessio Canu, Tommaso Simoncini
BACKGROUND: Estetrol (E4) is a natural estrogen produced solely during human pregnancy. E4 is suitable for clinical use since it acts as a selective estrogen receptor modulator. In clinical trials E4 has been seen to have little or no effect on coagulation. Hence, it is interesting to investigate whether E4 alters endothelial-dependent fibrinolysis. OBJECTIVES: We studied the effects of E4 on the fibrinolytic system and whether this could influence the ability of endothelial cells to migrate...
May 2017: Maturitas
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