Searched for: subject%3A%22Antimicrobial%22
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van Peer, J. (author), de Kok, M. (author)
public lecture 2021
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Agamennone, V. (author), Le, N.G. (author), van Straalen, N.M. (author), Brouwer, A. (author), Roelofs, D. (author)
The microbiome associated with an animal’s gut and other organs is considered an integral part of its ecological functions and adaptive capacity. To better understand how microbial communities influence activities and capacities of the host, we need more information on the functions that are encoded in a microbiome. Until now, the information...
article 2019
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Collins, S.L. (author), McMillan, A. (author), Seney, S. (author), van der Veer, C. (author), Kort, R. (author), Sumarah, M.W. (author), Reid, G. (author)
Perturbations to the vaginal microbiota can lead to dysbiosis, including bacterial vaginosis (BV), which affects a large portion of the female population. In a healthy state, the vaginal microbiota is characterized by low diversity and colonization by Lactobacillus spp., whereas in BV, these species are displaced by a highly diverse population...
article 2018
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Zarcone, M.C. (author), van Schadewijk, A. (author), Duistermaat, E. (author), Hiemstra, P.S. (author), Kooter, I.M. (author)
Background: Exacerbations constitute a major cause of morbidity and mortality in patients suffering from chronic obstructive pulmonary disease (COPD). Both bacterial infections, such as those with non-typeable Haemophilus influenzae (NTHi), and exposures to diesel engine emissions are known to contribute to exacerbations in COPD patients....
article 2017
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Nieuwland, M. (author), Papen-Botterhuis, N.E. (author), Drost, W.C. (author), Slaghek, T.M. (author), Erich, B.S.J.F. (author)
tA responsive release system consisting of biocide encapsulated by the hydrophobic protein zein wasinvestigated, in which a biocide will be released if growth of micro-organisms occurs. Because biociderelease is difficult to detect, a model system using dyes with different size, polarity and charge wasdeveloped first to study the applicability...
article 2016
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Aguirre, M. (author), Venema, K. (author)
Recently, a great deal of interest has been expressed regarding strategies to tackle worldwide obesity because of its accelerated wide spread accompanied with numerous negative effects on health and high costs. Obesity has been traditionally associated with an imbalance in energy consumed when compared to energy expenditure. However, growing...
article 2015
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Neumann, A. (author), Völlger, L. (author), Berends, E.T.M. (author), Molhoek, E.M. (author), Stapels, D.A.C. (author), Midon, M. (author), Friães, A. (author), Pingoud, A. (author), Rooijakkers, S.H.M. (author), Gallo, R.L. (author), Mörgelin, M. (author), Nizet, V. (author), Naim, H.Y. (author), von Köckritz-Blickwede, M. (author)
Neutrophil extracellular traps (NETs) have been described as a fundamental innate immune defence mechanism. They consist of a nuclear DNA backbone associated with different antimicrobial peptides (AMPs) which are able to engulf and kill pathogens. The AMP LL-37, a member of the cathelicidin family, is highly present in NETs. However, the...
article 2014
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Neumann, A. (author), Berends, E.T.M. (author), Nerlich, A. (author), Molhoek, E.M. (author), Gallo, R.L. (author), Meerloo, T. (author), Nizet, V. (author), Naim, H.Y. (author), von Köckritz-Blickwede, M. (author)
NETs (neutrophil extracellular traps) have been described as a fundamental innate immune defence mechanism. Duringformation of NETs, the nuclear membrane is disrupted by an asyet unknown mechanism. In the present study we investigated the role of human cathelicidin LL-37 in nuclear membrane disruption and formation of NETs. Immunofluorescence...
article 2014
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Knijnenburg, A.D. (author), Spalburg, E. (author), de Neeling, A.J. (author), Mars-Groenendijk, R.H. (author), Noort, D. (author), Grotenbreg, G.M. (author), van der Marel, G.A. (author), Overkleeft, H.S. (author), Overhand, M. (author)
This article presents a series of ring-extended gramicidin S derivatives, 9-14, that have four ornithine residues as polar protonated side chains and one modified turn region containing a mono-functionalized cis-δ-oxetane, δ-furanoid, or δ-pyranoid sugar amino acid residue. Of the GS analogs evaluated, we identified compound 7, which contains...
article 2012
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Li, Y. (author), Kadam, S. (author), Abee, T. (author), Slaghek, T.M. (author), Timmermans, J.W. (author), Cohen Stuart, M.A. (author), Norde, W. (author), Kleijn, M.J. (author)
The aim of this study is to determine the release of lysozyme from oxidized starch microgels and subsequently test its antimicrobial activity. The gels are made of oxidized potato starch polymers, which are chemically cross-linked by sodium trimetaphosphate (STMP). The microgel is negatively charged and interacts with positively charged lysozyme...
article 2012
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Knijnenburg, A.D. (author), Kapoerchan, V.V. (author), Grotenbreg, G.M. (author), Spalburg, E. (author), de Neeling, A.J. (author), Mars-Groenendijk, R.H. (author), Noort, D. (author), Otero, J.M. (author), Llamas-Saiz, A.L. (author), van Raaij, M.J. (author), Ravensbergen, B. (author), Nibbering, P.H. (author), van der Marel, G.A. (author), Overkleeft, H.S. (author), Overhand, M. (author)
In this paper, we describe the crystal structure of previously reported ring-extended gramicidin S (GS) derivative 2 (GS14K4), containing a d-amino acid residue in one of the β-strand regions. This structure is in agreement with a previously reported modeling study of the same molecule. The polar side chain of the additional d-amino acid residue...
article 2011
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Knijnenburg, A.D. (author), Tuin, A.W. (author), Spalburg, E. (author), de Neeling, A.J. (author), Mars-Groenendijk, R.H. (author), Noort, D. (author), Otero, J.M. (author), Llamas-Saiz, A.L. (author), van Raaij, M.J. (author), van der Marel, G.A. (author), Overkleeft, H.S. (author), Overhand, M. (author)
Monobenzylated sugar amino acids (SAAs) that differ in ether ring size (containing an oxetane, furanoid, and pyranoid ring) were synthesized and incorporated in one of the ß-turn regions of the cyclo-decapeptide gramicidin S (GS). CD, NMR spectroscopy, modeling, and X-ray diffraction reveal that the ring size of the incorporated SAA moieties...
article 2011
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Oudhoff, M.J. (author), Blaauboer, M.E. (author), Nazmi, K. (author), Scheres, N. (author), Bolscher, J.G.M. (author), Veerman, E.C.I. (author), TNO Kwaliteit van Leven (author)
Antimicrobial peptides are multifunctional in innate immunity and wound repair of multicellular organisms. We were the first to discover that histatins, a family of salivary antimicrobial peptides, enhance epithelial cell migration, suggesting a role in oral wound healing. It is unknown whether histatins display innate-immunity activities,...
article 2010
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Knijnenburg, A.D. (author), Kapoerchan, V.V. (author), Spalburg, E. (author), de Neeling, A.J. (author), Mars-Groenendijk, R.H. (author), Noort, D. (author), van der Marel, G.A. (author), Overkleeft, H.S. (author), Overhand, M. (author), TNO Defensie en Veiligheid (author)
Ring extended Gramicidin S analogues containing adamantane amino acids and six cationic residues were designed and evaluated. Systematic replacement of the hydrophobic residues with adamantane amino acids resulted in a small set of compounds with varying amphipathic character. It was found that the amphipathicity of these compounds is correlated...
article 2010
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End, C. (author), Bikker, F.J. (author), Renner, M. (author), Bergmann, G. (author), Lyer, S. (author), Blaich, S. (author), Hudler, M. (author), Helmke, B. (author), Gassler, N. (author), Autschbach, F. (author), Ligtenberg, A.J.M. (author), Benner, A. (author), Holmskov, U. (author), Schirmacher, P. (author), Nieuw Amerongen, A.V. (author), Rosenstiel, P. (author), Sina, C. (author), Franke, A. (author), Hafner, M. (author), Kioschis, P. (author), Schreiber, S. (author), Poustka, A. (author), Mollenhauer, J. (author)
Deleted in malignant brain tumors 1 (DMBT1) is a secreted glycoprotein displaying a broad bacterial-binding spectrum. Recent functional and genetic studies linked DMBT1 to the suppression of LPS-induced TLR4-mediated NF-kappaB activation and to the pathogenesis of Crohn's disease. Here, we aimed at unraveling the molecular basis of its function...
article 2009
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Welling, M.M. (author), Ferro-Flores, G. (author), Pirmettis, I. (author), Brouwer, C.P.J.M. (author)
Infection specific radiopharmaceuticals can be used for diagnosis, decision-making in therapy and treatment follow-up. Research has been ongoing to develop infection specific markers since clinically used tracers cannot discriminate between infection and inflammation. A specific radiopharmaceutical for infection imaging should satisfy the...
article 2009
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Tuin, A.W. (author), Grotenbreg, G.M. (author), Spalburg, E. (author), de Neeling, A.J. (author), Mars-Groenendijk, R.H. (author), Noort, D. (author), van der Marel, G.A. (author), Overkleeft, H.S. (author), Overhand, M. (author), TNO Defensie en Veiligheid (author)
Loloatin C is a cyclic cationic antimicrobial peptide which is active against Gram positive as well as certain Gram negative bacteria. Unfortunately, it is equally potent against human erythrocytes. To probe the structure-activity relationship of this promising antibiotic peptide, amino acid substitution and/or incorporation of a constraint...
article 2009
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TNO Defensie en Veiligheid (author), Molhoek, E.M. (author), den Hertog, A.L. (author), de Vries, A.M.B.C. (author), Nazmi, K. (author), Veerman, E.C.I. (author), Hartgers, F.C. (author), Yazdanbakhsh, M. (author), Bikker, F.J. (author), van der Kleij, D. (author)
Cathelicidins are effector molecules of the innate host defense system that establish an antimicrobial barrier at epithelial interfaces. The human cathelicidin LL-37, in addition to its antimicrobial activity, also exhibits immunomodulatory effects, such as inhibition of pro-inflammatory responses to bacterial LPS in human monocytic cells. In...
article 2009
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Terpstra, F.G. (author), Rechtman, D.J. (author), Lee, M.L. (author), van Hoeij, K. (author), Berg, H. (author), van Engelenberg, F.A.C. (author), van 't Wout, A.B. (author), TNO Kwaliteit van Leven (author)
In the United States, concerns over the transmission of infectious diseases have led to donor human milk generally being subjected to pasteurization prior to distribution and use. The standard method used by North American milk banks is Holder pasteurization (63°C for 30 minutes). The authors undertook an experiment to validate the effects of a...
article 2007
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Gerardu, V.A.M. (author), Buijs, M. (author), van Loveren, C. (author), ten Cate, J.M. (author), TNO Kwaliteit van Leven (author)
The aim of this study was lo determine the effects of 3 wk of daily rinsing with amine fluoride/stannous fluoride (AmF/SnF2) mouthrinse on plaque formation at buccal and interproximal sites, and on the acid production in plaque. in a randomized clinical trial with 30 participants. The amount of plaque was scored according to Turesky's...
article 2007
Searched for: subject%3A%22Antimicrobial%22
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