The cannabinoid receptor type 2 (CB2R) is associated with several inflammatory diseases with an unmet medical need (e.g. Alzheimers, multiple sclerosis, reumatoid arthritis). Development of new chemical biology strategies to study this protein is essential to aid future development of drugs for these…

This thesis describes the synthesis and biochemical evaluation of a variety of cyclophellitol based activity-based probes and inhibitors targeting various endo- and exo-acting retaining glycosidases. In the last two decades a variety of probes and inhibitors for (hemi)cellulose degrading enzymes have…

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.

Wetenschappers van de Universiteit Leiden hebben een doorbraak bereikt in de bestudering van de erfelijke stofwisselingsziekte van Pompe. Samen met hun Yorkse collega’s ontwierpen zij een molecuul dat zich bindt aan het enzym dat aan de basis staat van het ziekteverloop. De bevindingen zijn gepubliceerd…

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

Promotor: J. van der Greef, T. Hankemeier; Co-promotor: H.A. van Wietmarschen

This thesis introduces the concept of

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding.

Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.

The Study Information Committee works to create a positive and accurate picture of the bachelor and master programs offered by the Institute of Biology Leiden (IBL). The committee consists of IBL staff members and study ambassadors. We reach out to future and current students, high school biology teachers,…

This thesis has described novel synthetic methods to produce a variety of (glyco)peptides and their application in the study of various immunological processes.

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This thesis explored the molecular pharmacological mechanisms of targeting CB2R via investigation of novel drug discovery concepts such as target binding kinetics, allosteric modulation and biased signaling.

Promotores: H.S. Overkleeft, G.A. van der Marel, Co-promotor: B.I. Florea

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).

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

Het was lange tijd één van de meest bedreigde diersoorten ter wereld. Ruim tien jaar geleden dacht men zelfs nog dat hij was uitgestorven: de Filipijnse krokodil.

De zeldzame Ethiopische wolf komt steeds vaker in aanvaring met lokale veehouders. Promovendus Girma Eshete zocht naar manieren om het elegante beest te redden van de ondergang. Promotie op 5 september.

In this thesis, the discovery and optimization is described of chemical tools to study the N-acylethanolamine (NAE) biosynthetic pathway.

The inverse electron demand Diels-Alder (IEDDA) pyridazine elimination emerged in 2013 as a new bioorthogonal reaction and constitutes a prime example of what is now known as dissociative bioorthogonal chemistry. The research described in this Thesis aims to develop synthetic strategies which enable…

De Microscopy Unit huisvest, onderhoudt en coördineert vrijwel alle microscopieapparatuur van het IBL. De beschikbare apparatuur varieert van conventionele licht- en fluorescentiemicroscopen tot confocale laser- en elektronenmicroscopen. Er is bovendien apparatuur beschikbaar voor histologie, met inbegrip…

Dit project beoogt de ontwikkeling van geavanceerde data-analysemethoden voor monitoring en het vergroten van ons inzicht in de dynamiek van de biodiversiteit in natuurgebieden zoals de Oostvaardersplassen.

Promotie

Een uitgebreid overzicht van het onderzoek van de afdeling Environmental Biology is beschikbaar op de Engelse versie van de CML-website

Een uitgebreid overzicht van het onderwijs van de afdeling Environmental Biology is beschikbaar op de Engelse versie van de CML-website

Een uitgebreid overzicht van software en data beschikbaar gesteld door de afdeling Environmental Biology is beschikbaar op de Engelse versie van de CML-website

The book ‘Bestrijdingsmiddelen en Milieu' gives a transparent overview of facts and figures concerning pesticide use in the Netherlands and the impact of pesticides on the environment.

While ecosystems have concrete benefits for human society, these benefits are typically overlooked in decision-making.

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

Large carnivore population is globally declining as a result of the fragmentation of habitat, large prey depletion and retaliatory killing by pastoralists.

This work describes the use of click-to-release chemistry to get spatiotemporal control over immunocytokine activity. Until now, immunocytokines (cytokines coupled to a tumor-targeting-moiety) remained active throughout the body, being able to bind their respective receptors, causing mild to severe…

Promotores: T.H.W. Bäck, A. Plaat, Co-promotor: F.J. Verbeek

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh

The first steps are made in personalised cancer vaccination strategies, which aim to induce a more specific immune response with fewer side effects. The activation of cytotoxic T cells is crucial for an effective immune response.

Microscopic insight on lipid-based nanomedicine in vivo remains limited to the perception of the knowledge that could be obtained: if we interpret only what we see, then we only believe to know. Although believing to know encapsulates an undefined amount of uncertainty in the exploration of lipid-based…

This thesis describes the genetic and prokaryotic diversity of giant barrel sponges.

The research described in this thesis focused on the use of bioorthogonal antigens to investigate immunological processes in antigen presenting cells. Bioorthogonal antigens are antigenic proteins produced through recombinant expression in a methionine auxotrophic E. coli strain.

Promotor: Prof.dr. G.R. de Snoo