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TIMP-2

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https://www.readbyqxmd.com/read/29149959/urinary-tissue-inhibitor-of-metalloproteinase-and-insulin-like-growth-factor-7-as-early-biomarkers-of-delayed-graft-function-after-kidney-transplantation
#1
J Yang, S Y Lim, M-G Kim, C-W Jung, W-Y Cho, S-K Jo
BACKGROUND: Recently, urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-7 (IGFBP-7), markers for G1 cell cycle arrest, have been identified and validated in predicting the development of acute kidney injury in critically ill patients. It is unknown, however, whether these two biomarkers could predict the development of delayed graft function (DGF) after kidney transplantation (KT). METHODS: This is a single-center, prospective, observational study...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149784/anti-inflammatory-property-of-%C3%AE-d-mannuronic-acid-m2000-on-expression-and-activity-of-matrix-metalloproteinase-2-and-9-through-cd147-molecule-in-phorbol-myristate-acetate-differentiated-thp-1-cells
#2
Mohadese M Farahani, Elahe Motevaseli, Faezeh Maghsood, Maryam Heidari-Kharaji, Abbas Mirshafiey
The aim of this study was to evaluate the effects of M2000, a novel non-steroidal anti-inflammatory drug (NSAID) with immunosuppressive property and without gastro-nephrotoxicitic effects on matrix metalloproteinases (MMP)-2 and (MMP)-9 in phorbol myristate acetate (PMA)-differentiated THP-1 cells. Gene expression and activity of MMP-2 and MMP-9 are inhibited respectively by the tissue inhibitor of matrix metalloproteinase (TIMP)-2 and (TIMP)-1 and are induced by extracellular matrix metalloproteinase inducer (CD147/EMMPRIN)...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29149107/treponema-denticola-chymotrypsin-like-proteinase-may-contribute-to-orodigestive-carcinogenesis-through-immunomodulation
#3
Mikko T Nieminen, Dyah Listyarifah, Jaana Hagström, Caj Haglund, Daniel Grenier, Dan Nordström, Veli-Jukka Uitto, Marcela Hernandez, Tülay Yucel-Lindberg, Taina Tervahartiala, Mari Ainola, Timo Sorsa
BACKGROUND: Periodontal pathogens have been linked to oral and gastrointestinal (orodigestive) carcinogenesis. However, the exact mechanisms remain unknown. Treponema denticola (Td) is associated with severe periodontitis, a chronic inflammatory disease leading to tooth loss. The anaerobic spirochete Td is an invasive bacteria due to its major virulence factor chymotrypsin-like proteinase. Here we aimed to investigate the presence of Td chymotrypsin-like proteinase (Td-CTLP) in major orodigestive tumours and to elucidate potential mechanisms for Td to contribute to carcinogenesis...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29146295/new-markers-for-early-detection-of-acute-kidney-injury-after-transcatheter-aortic-valve-implantation
#4
Cedrick Zaouter, Frédérique Priem, Lionel Leroux, Guillaume Bonnet, Marie-Lise Bats, Marie Christine Beauvieux, Alain Rémy, Alexandre Ouattara
BACKGROUND: Acute Kidney Injury (AKI) is a frequent complication after a Transcatheter Aortic Valve Implantation (TAVI). Biomarkers such as urinary G1 cell cycle arrest proteins (TIMP-2 and IGFBP7) and sonographic evaluation (Doppler Renal Resistive Index (RRI)) have been advocated to predict AKI at an early stage after a TAVI-procedure. The primary aim was to determine the predictive value of these markers to detect AKI after a TAVI-procedure at an early phase. PATIENTS AND METHODS: In a prospective observational study, 62 consecutive patients were scheduled for a TAVI...
November 13, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29145491/the-urine-biomarker-panel-igfbp7-x-timp-2-nephrocheck%C3%A2-parameter-does-not-correlate-with-igfbp7-and-timp-2-gene-expression-in-urinary-sediment
#5
Daniela Knafl, Markus Müller, Sahra Pajenda, Zeynep Genc, Manfred Hecking, Ludwig Wagner
BACKGROUND: Acute kidney injury (AKI) is frequently observed in serious infections, following nephrotoxic medication, surgery and trauma. Here we tested whether the detection of two recently identified biomarkers for AKI, Tissue Inhibitor of Metalloproteinase-2 (TIMP-2) and Insulin-Like Growth Factor Binding Protein 7 (IGFBP7), depends on the expression of these proteins in cells of the urinary sediment. METHOD: We collected urine samples of 33 kidney transplant recipients and 14 non-transplanted patients who all had AKI (stages 1-3 according to KDIGO), and measured [IGFBP7]x[TIMP-2] using the NephroCheck® Astute1 40 ™ meter...
2017: PloS One
https://www.readbyqxmd.com/read/29140689/tissue-inhibitor-of-metalloprotease-2-timp-2-bioprocess-development-physicochemical-biochemical-and-biological-characterization-of-highly-expressed-recombinant-protein
#6
Ananda Chowdhury, Robert G Brinson, Beiyang Wei, William G Stetler-Stevenson
Tissue Inhibitor of Metalloprotease -2 (TIMP-2) is a secreted 21 kDa multifunctional protein first described as an endogenous inhibitor of matrix metalloproteinases (MMPs) that prevents breakdown of the extracellular matrix often observed in chronic diseases. TIMP-2 diminishes growth factor-mediated cell proliferation in vitro, as well as neoangiogenesis and tumor growth in vivo independent of its MMP-inhibitory activity, . These physiological properties make TIMP-2 an excellent candidate for further pre-clinical development as a biologic therapy of cancer...
November 15, 2017: Biochemistry
https://www.readbyqxmd.com/read/29130646/investigating-the-expression-of-mmps-and-timps-in-preterm-placenta-and-role-of-cpg-methylation-in-regulating-mmp-9-expression
#7
Deepali Sundrani, Ankita Narang, Savita Mehendale, Sadhana Joshi, Preeti Chavan-Gautam
Matrix metalloproteinases (MMPs) and tissue inhibitors of MMPs (TIMPs) are crucial to the processes of normal labor and parturition. We have previously reported aberrant protein levels of MMPs in placenta of women delivering preterm as compared to term. In this study, we examine the mRNA levels of MMPs (MMP-1, MMP-2, and MMP-9) and TIMPs (TIMP-1, TIMP-2) in the placenta from women delivering preterm as compared with term and further study the promoter DNA methylation of the MMP-9 gene in a sub-sample of term and preterm placentae...
November 11, 2017: IUBMB Life
https://www.readbyqxmd.com/read/29128090/crocus-sativus-l-aqueous-extract-reduces-atherogenesis-increases-atherosclerotic-plaque-stability-and-improves-glucose-control-in-diabetic-atherosclerotic-animals
#8
Ei Christodoulou, N P E Kadoglou, M Stasinopoulou, O A Konstandi, C Kenoutis, Z I Kakazanis, A Rizakou, N Kostomitsopoulos, G Valsami
BACKGROUND AND AIMS: We aimed to evaluate a possible atheroprotective effect of saffron aqueous extract (SFE), and its potential anti-inflammatory mechanisms, in apoE knockout (ApoE(-/-)) mice. METHODS: Fifty male, ApoE(-/-) mice, fed a high-fat diet (HFD) for 12 weeks, were randomized into 5 groups: (1) baseline group, euthanatized, without intervention, (2) three saffron groups, receiving HFD and 30,60,90 mg/kg/day of SFE, respectively, for four weeks, per os through gavage, after reconstitution in water for injection (WFI), (3) control group (COG), receiving daily HFD and the same volume of WFI (four weeks)...
November 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29120852/effect-of-gestational-age-on-migration-ability-of-the-human-umbilical-cord-vein-mesenchymal-stem-cells
#9
Mobin Mohammadi, Mehdi Mohammadi, Mohammad Ali Rezaee, Tayyeb Ghadimi, Massume Abolhasani, Mohammad Reza Rahmani
PURPOSE: Migration ability of mesenchymal stem cells (MSCs) towards chemotactic mediators is a determinant factor in cell therapy. MSCs derived from different sources show different properties. Here we compared the migration ability of the term and the pre-term human umbilical cord vein MSCs (hUCV-MSCs). MATERIALS/METHODS: MSCs were isolated from term and pre-term umbilical cord vein, and cultured to passage 3-4. Migration rate of both groups was assessed in the presence of 10% FBS using chemotaxis assay...
November 6, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29120671/erythropoietin-reduces-collagen-deposition-after-myocardial-infarction-but-does-not-improve-cardiac-function
#10
Fernanda G Pessoa, Charles Mady, Keila C B Fonseca, Adriana M Oliveira-Fonoff, Vera M C Salemi, Mauricio R Jordao, Fabio Fernandes, Felix J A Ramires
Myocardial remodeling includes inappropriate collagen deposition in the interstitium. Erythropoietin (EPO) may have cardioprotective effects. We aimed to assess the role of EPO on myocardial remodeling during the chronic phase. We studied 60 Wistar rats divided into Control (CT), Control+EPO (CT+EPO), Infarcted+EPO (MI+EPO), and Infarcted (MI). The interstitial collagen volume fraction (ICVF) was quantified. Echocardiography was performed. We quantified ADMA and glutathione by ELISA, and RT-PCR to assess apoptosis and inflammation...
November 9, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29113325/elevated-expression-of-mmp-2-and-timp-2-cooperatively-correlates-with-risk-of-lung-cancer
#11
Chao Cao, Ning Xu, Xiaoxia Zheng, Wenxue Zhang, Tianwen Lai, Zaichun Deng, Xiaoping Huang
Lung cancer is one of the most common form of malignant diseases and the leading cause of cancer-related mortality worldwide. It is reported that approximately two-thirds of lung cancer patients is the presence of advance disease at the time of diagnosis. Hence novel lung cancer diagnostic tests, which can be used to screen individuals at high risk, are required. In the derivation cohort, a total of 88 patients admitted into hospital with suspected lung cancer were included. Bronchial alveolar lavage fluid (BALF) and lung tissue samples were collected from included patients, and were analyzed for MMP-2 and TIMP-2 expression...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29105390/dual-effects-of-cell-free-supernatants-from-lactobacillus-acidophilus-and-lactobacillus-rhamnosus-gg-in-regulation-of-mmp-9-by-up-regulating-timp-1-and-down-regulating-cd147-in-pmadifferentiated-thp-1-cells
#12
Faezeh Maghsood, Abbas Mirshafiey, Mohadese M Farahani, Mohammad Hossein Modarressi, Parvaneh Jafari, Elahe Motevaseli
OBJECTIVES: Recent studies have reported dysregulated expression of matrix metalloproteinases (MMPs), especially MMP-2, MMP-9, tissue inhibitor of metalloproteinase-1, -2 (TIMP-1, TIMP-2), and extracellular matrix metalloproteinase inducer (EMMPRIN/CD147) in activated macrophages of patients with inflammatory diseases. Therefore, MMP-2, MMP-9, and their regulators may represent a new target for treatment of inflammatory diseases. Probiotics, which are comprised of lactic acid bacteria, have the potential to modulate inflammatory responses...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29103203/cancer-specific-survival-stratification-derived-from-tumor-expression-of-tissue-inhibitor-of-metalloproteinase-2-in-non-metastatic-renal-cell-carcinoma
#13
Pastora Beardo, David Truan Cacho, Laura Izquierdo, Joan Bautista Alcover-Garcia, Antonio Alcaraz, Javier Extramiana, Carmen Mallofré
Degradation of the extracellular matrix is a prerequisite for the processes of cancer cell invasion and metastasis. The purpose of our study was to assess the association of matrix metalloproteinases (MMP-1, MMP-2, MMP-3, MMP-9) and their inhibitors (TIMP-1 and TIMP-2) with renal cell carcinoma (RCC) progression and cancer-specific survival (CSS), using immunohistochemical analysis of 60 formalin-fixed, paraffin-embedded sections of tumor tissue and normal tissue near the tumor from surgical T1-3bN0 M0 RCC specimens...
November 4, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29097850/middermal-elastolysis-dermal-fibroblasts-cooperate-with-inflammatory-cells-to-the-elastolytic-disorder
#14
Giovanna De Cunto, Arianna Lamberti, Maria Margherita de Santi, Clelia Miracco, Michele Fimiani, Giuseppe Lungarella, Eleonora Cavarra
Little is known about the cause and pathophysiology of middermal elastolysis (MDE). In this condition, variable inflammatory infiltrate may be present or not together with loss of elastic fibres in the middermis that spares both papillary and lower reticular dermis. MDE may be a consequence of abnormal extracellular matrix degradation related to an imbalance between elastolytic enzymes released from inflammatory and resident cells and their naturally occurring inhibitors. However, the cause of this imbalance is still an object of investigation...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29094325/the-expression-of-matrix-metalloproteinases-and-their-inhibitors-in-corneal-fibroblasts-by-alarmins-from-necrotic-corneal-epithelial-cells
#15
Akira Iwatake, Akira Murakami, Nobuyuki Ebihara
PURPOSE: Sterile ulceration is frequently observed in the cornea following persistent corneal epithelial damage. We examined the effect of alarmins released by necrotic corneal epithelial cells (HCE) on the production of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) by corneal fibroblasts. METHODS: IL-1α and high-mobility group box 1 protein (HMGB1) released into the supernatant derived from necrotic HCE cells were measured with enzyme-linked immunosorbent assay (ELISA)...
November 1, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29076366/effects-of-transforming-growth-factor-%C3%AE-and-interleukin-1%C3%AE-on-inflammatory-markers-of-osteoarthritis-in-cultured-canine-chondrocytes
#16
Nadja Adler, Axel Schoeniger, Herbert Fuhrmann
OBJECTIVE To determine effects of transforming growth factor (TGF)-β and interleukin (IL)-1β on inflammatory markers in cultured canine chondrocytes to clarify the role of these cytokines in osteoarthritis of dogs. SAMPLE Pooled chondrocytes isolated from the stifle joints of 4 adult dogs. PROCEDURES Chondrocytes were isolated, cultured, and frozen at -80°C. Pooled cells were incubated in medium with or without TGF-β (1 or 10 ng/mL) and subsequently stimulated with IL-1β (10 ng/mL). Concentrations of nitric oxide (NO) and prostaglandin (PG) E were measured in culture supernatants...
November 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29075637/correlation-between-tissue-characterization-and-dynamic-expression-of-matrix-metalloproteinase-2-and-its-tissue-inhibitor-in-conjunctival-filtering-bleb-of-rats
#17
Ling Wang, Da-Bo Wang, Meng-Ying Liu, Ru-Yong Yao
PURPOSE: Using rat conjunctival bleb model, we correlated changes morphology and histology in the bleb with changes in MMP-2 and TIMP-2 levels. METHODS: Filtering surgeries were performed on rats. Dynamic changes in morphology and histopathology were observed using HE staining. Expression of MMP-2 and TIMP-2 was determined by immunofluorescence microscopy and western blotting. RESULTS: Well-elevated filtering blebs formed and persisted for an average of 12 days...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29054963/interleukin-12-mediated-expression-of-matrix-metalloproteinases-in-human-periodontal-ligament-fibroblasts-involves-in-nf-kappab-activation
#18
Li Miao, Shujun Zhan, Jiyan Liu
Interleukin (IL-12) is a pro-inflammatory cytokine, and its increased level correlates with the severity of periodontitis. However, its role in the pathogenesis of tooth periapical lesions is controversial and has not been completely clarified. This study aimed to investigate whether IL-12 affects the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in human periodontal ligament fibroblasts (hPDLFs). After treatment with IL-12 for different time, Real-time PCR and Western blotting were used to determine the mRNA and protein levels of MMP-1, MMP-2, MMP-3, MMP-9, MMP-13, TIMP-1 and TIMP-2, respectively...
October 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29053586/time-dependent-alterations-of-mmps-timps-and-tendon-structure-in-human-achilles-tendons-after-acute-rupture
#19
Susann Minkwitz, Aysha Schmock, Alper Kurtoglu, Serafeim Tsitsilonis, Sebastian Manegold, Britt Wildemann, Franka Klatte-Schulz
A balance between matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) is required to maintain tendon homeostasis. Variation in this balance over time might impact on the success of tendon healing. This study aimed to analyze structural changes and the expression profile of MMPs and TIMPs in human Achilles tendons at different time-points after rupture. Biopsies from 37 patients with acute Achilles tendon rupture were taken at surgery and grouped according to time after rupture: early (2-4 days), middle (5-6 days), and late (≥7 days), and intact Achilles tendons served as control...
October 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29044524/effects-of-loss-of-occlusal-contact-on-the-expression-of-matrix-metalloproteinase-2-membrane-type-1-mmp-tissue-inhibitor-of-the-mmp-2-eruption-rate-organization-and-resistance-of-collagen-fibers-of-the-rat-incisor-periodontal-ligament
#20
N F Omar, J R Gomes, J S Neves, P D Novaes
BACKGROUND AND OBJECTIVE: This study investigated the effect of occlusal contact loss (induced by tooth shortening), on matrix metalloproteinase (MMP)-2, membrane type 1-MMP (MT1-MMP) and tissue inhibitor of the MMP-2 (TIMP-2) expressions in the periodontal ligament of the rat incisor, as well as eruption rate, resistance and collagen organization. MATERIAL AND METHODS: Male Wistar rats were distributed into a control group, denominated normofunctional group, whose lower teeth underwent a normal eruption process; and a hypofunctional group, whose lower left incisor teeth were shortened every 2 days during 14 days...
October 17, 2017: Journal of Periodontal Research
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