82 zoekresultaten voor “antibiotics” in de Publieke website
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Semisynthetic glycopeptide antibiotics
Vancomycin is a last-resort antibiotic for the treatment of many Gram-positive bacterial infections, while remaining inactive against Gram-negative strains.
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Environmental and metabolomic study of antibiotic production by actinomycetes
Promotor: Prof.dr. G.P. van Wezel
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Signalling pathways that control development and antibiotic production in streptomyces
Bacteria are highly complex and diverse organisms that have adapted to survive in ecological niches ranging from the most extreme to the most heterogeneous environments.
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Shaping the pharmacokinetic landscape for renally cleared antibiotics in obesity
The prevalence of obesity (BMI >40 kg/m2) has increased rapidly over the recent years, not only in adults, but also in children and adolescents.
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Discovery of antibiotics and their targets in multidrug-resistant bacteria
Global healthcare is on the verge of an antibiotic availability crisis as bacteria have evolved resistance to nearly all known antibacterials. Identifying new antibiotics that operate via novel modes-of-action is therefore of high priority.
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Structural characterization of bacterial proteins involved in antibiotic resistance and peptidoglycan biosynthesis
This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.
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Discovery of novel Antibiotics from Actinomycetes by Integrated Metabolomics & Genomics Approaches
Promotor: G.P. van Wezel, Co-promotor: Y.H. Choi
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Group benefits from genomic instability: a tale of antibiotic warriors in Streptomyces
Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.
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Multi-omics studies of the control of growth and antibiotic production of Streptomyces
Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).
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Potentiation of Gram-positive specific antibiotics against Gram-negative bacteria through outer membrane disruption
Extending our current arsenal of antibiotics is key to staying ahead in the arms race between humans and resistant bacteria.
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Another Brick in the Wall: The role of the actinobacterial cell wall in antibiotic resistance, phylogeny and development
Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.
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reduced mycelial heterogeneity for improved production of enzymes and antibiotics
Hoe kan de techniek van cell wall engineering worden ingezet zodat de industrie streptomyceten beter kunnen verwerken tot nieuwe antibiotica?
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Synthesis of Ribitol Phosphate based Wall Teichoic acids
Antibiotic resistance, caused by widespread use of antibiotics, leads to bacterial infections that are difficult, if not impossible, to treat and is a major worldwide health concern.
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The Ecology and Evolution of Microbial Warfare in Streptomyces
The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.
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Ecology and genomics of Actinobacteria and their specialised metabolism
Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.
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Exploring the chemical space of post-translationally modified peptides in Streptomyces with machine learning
The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.
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Marcellus Ubbink
Wiskunde en Natuurwetenschappen
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Impact of plant hormones on growth and development of actinobacteria
Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.
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Origins of antibiotic resistance
Lezing, Van Leeuwenhoek Lecture on BioScience
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Semisynthetic Glycopeptide Antibiotics
Promotie
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Rational use of antibiotic
Promotie
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Volatile compounds from Actinobacteria as mediators of microbial interactions
Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.
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Exploring and exploiting the mechanism of mycelial pellet formation by Streptomyces
Promotor: G.P. van Wezel
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Boosting the host immune system to fight tuberculosis
New drugs for use as tuberculosis (TB) treatment are needed due to the constrains of classical antibiotics against TB and the rise of antibiotic-resistant strains, making TB a harder and harder disease to treat.
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Towards a system-based pharmacology approach to predict developmental changes in renal drug clearance in children
Promotores: Prof.dr. C.A.J. Knibbe, Prof.dr. M. Danhof, Prof.dr. K. Allegaert (Leuven)
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Rational empiric antibiotic therapy in clinical practice & policy making
Promotie
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Shaping the pharmacokinetic landscape for renally cleared antibiotics in obesity
Promotie
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Structural and biochemical analysis of antibiotic-target interactions
Promotie
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Coiled-coil biomaterials for biological applications
This dissertation contains four works during my PhD. Different biomaterials have been designed based on coiled-coil peptides. These biomaterials have a range of applications, inclusing drug delivery, cell sorting to cell-cell fusion.
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Dodelijke infecties nemen toe, nieuwe antibiotica hard nodig
Wereldwijd overlijdt een groeiend aantal mensen aan infecties omdat steeds meer bacteriën resistent worden tegen antibiotica. Nieuwe soorten zijn dringend nodig. Een veelbelovende resistentie-remmer wordt nu ontwikkeld door de onderzoeksgroep van Nathaniel Martin, hoogleraar Biologische chemie. Oratie…
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Antibioticabehandelingen maken ons vatbaarder voor negatieve emoties
Mensen die de afgelopen drie maanden antibiotica hebben gebruikt, letten meer op negatieve gezichtsuitdrukkingen, blijkt uit onderzoek van postdoc Katerina Johnson en universitair docent Laura Steenbergen. Dit kan mogelijk verklaren hoe antibiotica het risico op het ontwikkelen van depressie vergroo…
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Autophagy and Lc3-associated phagocytosis in host defense against Salmonella
Control of infectious diseases poses continuous challenges for human health.
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Controlling growth and morphogenesis of the industrial enzyme producer Streptomyces lividans
Promotor: G.P. van Wezel, Co-Promotor: E. Vijgenboom
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Selective autophagy in host defense against mycobacterial infection
The effective treatment of tuberculosis (TB) remains a major challenge to global health.
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Molecular characterization of copper-dependent enzymes involved in Streptomyces morphology
Promotor: G.P. van Wezel, Co-promotor: D. Claessen
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Identification and characterization of developmental genes in streptomyces
Promotor: Prof.dr. G.P. van Wezel
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Morphogenesis and heterogeneity in liquid-grown streptomyces cultures
The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.
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Structural and functional analysis of proteins involved in natural product biosynthesis and morphological differentiation in Streptomyces
Streptomyces present a valuable platform for natural product discovery. Lugdunomycin is a novel angucycline-derived polyketide from Streptomyces sp QL37, with unprecedented skeleton and antimicrobial activity.
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1,2-cis-glycosylations: method development and synthesis of complex oligosaccharides
Promotor: G.A. van der Marel, Co-promotor: D.C. Codée
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Off the wall: characterisation and exploitation of a cell wall deficient life style in filamentous actinomycetes
Almost all bacteria are enveloped by a cell wall that provides cellular protection.
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Bioorthogonal Labeling Tools to Study Pathogenic Intracellular Bacteria
In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.
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Onderzoekers gaan de strijd aan met antibioticaresistente bacteriën
Wanneer een bacterie resistenter wordt voor het ene antibioticum, wordt het soms gevoeliger voor een ander. Om deze wisselwerking beter te begrijpen, brachten onderzoekers van het Instituut Biologie Leiden (IBL) en het Leiden Academic Centre for Drug Research (LACDR) onder leiding van Daniel Rozen en…
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Group benefits from genomic instability: a tale of antibiotic warriors in Streptomyces
Promotie
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Structural characterization of bacterial proteins involved in antibiotic resistance and peptidoglycan biosynthesis
Promotie
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Potentiation of Gram-positive specific antibiotics against Gram-negative bacteria through outer membrane disruption
Promotie
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Multi-omics studies of the control of growth and antibiotic production of Streptomyces
Promotie
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Discovery of Antibiotics and Their Targets in Multidrug-Resistant Bacteria
Promotie
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Student projects
To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.
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Concepts and applications for evidence-based dosing in morbidly obese patients before and after weight loss surgery
Promotor: C.A.J. Knibbe, Co-promotores: H.P.A. van Dongen, B. van Ramshorst
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Junior Technician for Metabolic Engineering
Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)