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van Bilsen, J.H.M. (author), van den Brink, W. (author), van den Hoek, A.M. (author), Dulos, R. (author), Caspers, M.P.M. (author), Kleeman, R. (author), Wopereis, S. (author), Verschuren, L. (author)Metabolic disorders, such as obesity and type 2 diabetes have a large impact on global health, especially in industrialized countries. Tissue-specific chronic low-grade inflammation is a key contributor to complications in metabolic disorders. To support therapeutic approaches to these complications, it is crucial to gain a deeper understanding...article 2021
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Kim, E.S. (author), Cha, Y. (author), Ham, M. (author), Jung, J. (author), Kim, S.G. (author), Hwang, S. (author), Kleemann, R. (author), Moon, A. (author)A crucial role of the inflammatory lipid sphingosine-1-phosphate (S1P) in breast cancer aggressiveness has been reported. Recent clinical studies have suggested that C-reactive protein (CRP) has a role in breast cancer development. However, limited information is available on the molecular basis for the expression of CRP and its functional...article 2014
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Offersen, B.V. (author), Knap, M.M. (author), Horsman, M.R. (author), Verheijen, J. (author), Hanemaaijer, R. (author), Overgaard, J. (author), TNO Kwaliteit van Leven (author)Introduction. Matrix metalloproteinase 9 (MMP-9) is an endopeptidase involved in various cellular processes, such as tumour development and metastatic spread. In biological samples, MMP-9 can occur as pro-MMP-9 and active MMP-9, or these factors complexed with the inhibitor TIMP-1. An assay, which can measure active and total MMP-9 in biological...article 2010
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van den Borne, S.W.M. (author), Cleutjens, J.P.M. (author), Hanemaaijer, R. (author), Creemers, E.E. (author), Smits, J.F.M. (author), Daemen, M.J.A.P. (author), Blankesteijn, W.M. (author), TNO Kwaliteit van Leven (author)Background: Infarct rupture is a usually fatal complication of myocardial infarction (MI), for which no molecular mechanism has been described in humans. Experimental evidence in mouse models suggests that the degradation of the extracellular matrix by matrix metalloproteinases (MMPs) plays an important role in infarct rupture. The present study...article 2009
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Abdul-Hussien, H. (author), Hanemaaijer, R. (author), Verheijen, J.H. (author), van Bockel, J.H. (author), Geelkerken, R.H. (author), Lindeman, J.H.N. (author), TNO Kwaliteit van Leven (author)Background: Matrix metalloproteinase-9 (MMP-9) is thought to play a central role in abdominal aortic aneurysm (AAA) initiation. Doxycycline, a tetracycline analogue, has direct MMP-9-inhibiting properties in vitro, and it effectively suppresses AAA development in rodents. Observed inhibition of AAA progression, and contradictory findings in...article 2009
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TNO Kwaliteit van Leven (author), Lindeman, J.H.N. (author), Abdul-Hussien, H. (author), van Bockel, J.H. (author), Wolterbeek, R. (author), Kleemann, R. (author)Background-Doxycycline has been shown to effectively inhibit aneurysm formation in animal models of abdominal aortic aneurysm. Although this effect is ascribed to matrix metalloproteinase-9 inhibition, such an effect is unclear in human studies. We reevaluated the effect of doxycycline on aortic wall protease content in a inical trial and found...article 2009
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Henneman, S. (author), Bildt, M.M. (author), de Groot, J. (author), Kuijpers-Jagtman, A.M. (author), Von den Hoff, J.W. (author)The main cells in the periodontal ligament (PDL) are the fibroblasts, which play an important role in periodontal remodelling. Matrix metalloproteinases (MMPs) are largely responsible for the degradation of extracellular matrix proteins in the PDL. Previous studies have indicated that MMP production can be stimulated by the hormone relaxin. This...article 2008
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Fabriek, B.O. (author), Møller, H.J. (author), Vloet, R.P.M. (author), van Winsen, L.M. (author), Hanemaaijer, R. (author), Teunissen, C.E. (author), Uitdehaag, B.M.J. (author), van den Berg, T.K. (author), Dijkstra, C.D. (author), TNO Kwaliteit van Leven (author)The scavenger receptor CD163 is selectively expressed on tissue macrophages and human monocytes. CD163 has been implicated to play a role in the clearance of hemoglobin and in the regulation of cytokine production by macrophages. Membrane CD163 can be cleaved by matrix metalloproteinases (MMP) resulting in soluble CD163 (sCD163). In the present...article 2007
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Eradication of Helicobacter pylori infection favourably affects altered gastric mucosal MMP-9 levelsKubben, F.J.G.M. (author), Sier, C.F.M. (author), Schram, M. (author), Witte, T.A.M.C. (author), Veenendaal, R.A. (author), van Duijn, W. (author), Verheijen, J.H. (author), Hanemaaijer, R. (author), Lamers, C.B.H.W. (author), Verspaget, H.W. (author), TNO Kwaliteit van Leven (author)Background: Helicobacter pylori gastritis is recognized as an important pathogenetic factor in peptic ulcer disease and gastric carcinogenesis, and is accompanied by strongly enhanced gastric mucosal matrix metalloproteinase-9 (MMP-9) levels. Aim: This study was performed to investigate whether H. pylori-affected gastric mucosal MMP-2 and MMP-9...article 2007
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Nanni, S. (author), Melandri, G. (author), Hanemaaijer, R. (author), Cervi, V. (author), Tomasi, L. (author), Altimari, A. (author), van Lent, N. (author), Tricoci, P. (author), Bacchi, L. (author), Branzi, A. (author), TNO Kwaliteit van Leven (author)Matrix metalloproteinases (MMPs) are thought to participate in the pathogenesis of coronary artery disease (CAD), particularly in the occurrence of acute coronary syndrome (ACS). Little is known about human in vivo MMP regulation in CAD. The expression and regulation of MMPs and their tissue inhibitors (TIMPs) were evaluated in premature CAD....article 2007
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Kubben, F.J.G.M. (author), Sier, C.F.M. (author), Hawinkels, L.J.A.C. (author), Tschesche, H. (author), van Duijn, W. (author), Zuidwijk, K. (author), van der Reijden, J.J. (author), Hanemaaijer, R. (author), Griffioen, G. (author), Lamers, C.B.H.W. (author), Verspaget, H.W. (author), TNO Kwaliteit van Leven (author)Recently, complexes of matrix metalloproteinase matrix metalloproteinase-9 (MMP-9) with lipocalin-2 (neutrophil gelatinase-associated lipocalin) were found in the urine obtained from breast cancer patients, while these were completely absent in that obtained from healthy controls. In vitro data suggested a possible role for lipocalin-2 in the...article 2007
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Pires, N.M.M. (author), Eefting, D. (author), de Vries, M.R. (author), Quax, P.H.A. (author), Jukema, J.W. (author), TNO Kwaliteit van Leven (author)Background: Drug-eluting stents (DES) have been introduced successfully in clinical practice to prevent post angioplasty restenosis. Nevertheless, concerns about the safety of DES still exist. Objective: To investigate the vascular pathology and transcriptional responses to sirolimus and paclitaxel in a murine model for restenosis on underlying...article 2007
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Meijer, M.J. (author), Mieremet-Ooms, M.A.C. (author), van Duijn, W. (author), van der Zon, A.M. (author), Hanemaaijer, R. (author), Verheijen, J.H. (author), van Hogezand, R.A. (author), Lamers, C.B.H.W. (author), Verspaget, H.W. (author), TNO Kwaliteit van Leven (author)Background: Previous studies have shown an upregulation of matrix metalloproteinases (MMPs) in intestinal tissue of patients with inflammatory bowel disease (IBD) and significant clinical improvement after administration of the anti-TNF-α antibody infliximab. The aims of our study were to determine expression and secretion of MMP-1, -2, -3, -9,...article 2007
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Burger-Kentischer, A. (author), Göbel, H. (author), Kleemann, R. (author), Zernecke, A. (author), Bucala, R. (author), Leng, L. (author), Finkelmeier, D. (author), Geiger, G. (author), Schaefer, H.E. (author), Schober, A. (author), Weber, C. (author), Brunner, H. (author), Rütten, H. (author), Ihling, C. (author), Bernhagen, J. (author), TNO Kwaliteit van Leven (author)Atherosclerosis is an inflammatory response of the arterial wall to "injury", which is prominently driven by cytokines. The inflammatory mediator macrophage migration inhibitory factor (MIF) is a unique cytokine that was recently associated with atherogenesis. Here, we have investigated whether MIF has a role in spontaneous atherosclerosis by...article 2006
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van Hinsbergh, V.W.M. (author), Engelse, M.A. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)Pericellular proteases play an important role in angiogenesis and vasculogenesis. They comprise (membrane-type) matrix metalloproteinases [(MT-)MMPs], serine proteases, cysteine cathepsins, and membrane-bound aminopeptidases. Specific inhibitors regulate them. Major roles in initiating angiogenesis have been attributed to MT1-matrix...article 2006
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Beklen, A. (author), Tüter, G. (author), Sorsa, T. (author), Hanemaaijer, R. (author), Virtanen, I. (author), Tervahartiala, T. (author), Konttinen, Y.T. (author)Activated matrix metalloproteinase-3 (MMP-3) can contribute to periodontal ligament destruction in adult periodontitis. Since MMP-3 has been reported to activate proMMP-8 and -9, it was speculated that gingival tissue fibroblast-derived MMP-3 might, in periodontitis, be responsible for activation of gingival crevicular fluid (GCF) neutrophil...article 2006
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Bildt, M.M. (author), Snoek-van Beurden, A.M.P. (author), de Groot, J. (author), van El, B. (author), Kuijpers-Jagtman, A.M. (author), van den Hoff, J.W. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Background and Objective: The purpose of this study was to investigate the effects of chemically modified tetracyclines (CMTs) on the production of gelatinases [matrix metalloproteinase (MMP)-2 and -9] by human periodontal ligament (PDL) cells, and on the activity of recombinant gelatinases. Material and Methods: Human PDL cells were cultured...article 2006
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TNO Kwaliteit van Leven (author), Sluijter, J.P.G. (author), Pulskens, W.P.C. (author), Schoneveld, A.H. (author), Velema, E. (author), Strijder, C.F. (author), Moll, F. (author), de Vries, J.P. (author), Verheijen, J. (author), Hanemaaijer, R. (author), de Kleijn, D.P.V. (author), Pasterkamp, G. (author)Background and Purpose - We studied matrix metalloproteinases (MMP) 2, 8, and 9 and extracellular matrix metalloproteinase inducer (EMMPRIN) levels in relation to carotid atherosclerotic plaque characteristics. Methods - Carotid atherosclerotic plaques (n=150) were stained and analyzed for the presence of collagen, smooth muscle cell (SMC), and...article 2006
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TNO Kwaliteit van Leven (author), Kubben, F.J.G.M. (author), Sier, C.F.M. (author), van Duijn, W. (author), Griffioen, G. (author), Hanemaaijer, R. (author), van de Velde, C.J.H. (author), van Krieken, J.H.J.M. (author), Lamers, C.B.H.W. (author), Verspaget, H.W. (author)In a pioneer study, we showed 10 years ago that enhanced tissue levels of the matrix metalloproteinases (MMPs) MMP-2 and MMP-9 in gastric cancers, as determined by zymography, were related with worse overall survival of the patients. To corroborate these observations, we now assessed MMP-2 and MMP-9 with new techniques in an expanded group of...article 2006
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Verschuren, L. (author), Kleemann, R. (author), Offerman, E.H. (author), Szalai, A.J. (author), Emeis, S.J. (author), Princen, H.M.G. (author), Kooistra, T. (author), TNO Kwaliteit van Leven (author)Objective - To evaluate whether low-dose atorvastatin suppresses atherosclerotic lesion progression and inflammation in apolipoprotein E*3 (apoE*3)-Leiden mice beyond its cholesterol-lowering effect. Methods and Results - ApoE*3-Leiden mice were fed a high-cholesterol (HC) diet until mild atherosclerotic lesions had formed. Subsequently, HC diet...article 2005
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