PhD at Université de Picardie Jules Verne, Amiens - France

We aim to develop A. niger strains that produce more starch degrading enzymes even in the absence of starch.

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.

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.

A full overview of MacBio PhD Theses.

There seem to be genes that influence how our brains develop over time. A large international consortium has discovered this with an extensive study. The results of the study were recently published in Nature Neuroscience.

Researchers and clinicians at Leiden University Medical Centre (LUMC) are about to begin a milestone clinical study. It will be the first time a stem cell gene therapy developed in the Netherlands is used in a clinic. The therapy will be used to treat children with SCID, a rare disorder where children…

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Researchers from the Leiden University Medical Center (LUMC) have successfully used stem cell gene therapy to treat a baby with the severe congenital immune disorder SCID. An important milestone: it is the first time stem cell gene therapy of Dutch origin has been administered to a patient, and also…

Identification and characterization of components of DNA repair pathways and their role in Agrobacterium T-DNA integration and repair of CRISPR/Cas induced DSBs.

Both psoriasis and atheroslcerosis are diseases characterized by a chronic and systemic inflammatory profile with local lipid disturbances that alter the barrier function of the skin (psoriasis) and cause the development of atherosclerotic plaques (atherosclerosis).

An overview of the research at the Cancer Dug Target Discovery group.

Promotores: Prof.dr. M.K. Richardson, Prof.dr. H.P. Spaink

The genomic DNA of every organism is organized and compacted in order to fit inside the cell. This is achieved by the joint action of numerous architectural proteins that aid in folding the genome. Genome folding is tightly interconnected with transcription, with genes in certain regions being silenced,…

Promotores: Prof.dr. E.A.L. Biessen, Prof.dr. T.J.C. van Berkel

In this thesis, we used genetically engineered mouse models and a variety of cell-culture based assays to identify genes and pathways that are involved in the development and treatment of invasive lobular carcinoma (ILC).

Is translocation of nucleases possible via Agrobacterium T4SS and is it efficient enough for mutagenesis?

Leiden biophysicist Stefan Semrau was granted an NWO Vidi earlier this month. He will use the grant to study the role of electricity in embryonic development and tissue regeneration.

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

The molecular mechanisms that instigate a healthy cell to become malignant are fueled by (epi)genetic alterations in so-called driver genes.

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR), LACDR PhD Portal

Publication by: Anouk Wezel, Sabine Welten, Wida Razawy, Max Lagraauw, Margreet de Vries, Eveline Goossens, Martin Boonstra, Jaap Hamming, Ekambar Kandimalla, Johan Kuiper, Paul Quax, Yaël Nossent and Ilze Bot. Annals of Surgery. 2015;262:841-848.

Chemical tools to monitor drug-target engagement of endogenously expressed protein kinases are highly desirable for preclinical target validation in drug discovery. Here, we describe a chemical genetics strategy to selectively study target engagement of endogenous kinases.

Combining different disciplines, researchers work together to formulate innovative solutions to societal problems.

Increasing the efficiency of gene targeting (GT) as a genome editing tool in plants has been an important goal in plant biotechnology.

On 12 November Ingrid Leijten was a guest on Dutch NOS NPO Radio 1 programme Met het Oog op Morgen. She was asked to speak about the right to freedom of expression.

Plant biologist Pingtao Ding, assistant professor at the Institute of Biology Leiden (IBL), has received a 2.4 million European grant from the European Research Council (ERC). This ERC Starting Grant for promising young researchers allows him to unravel the molecular mechanisms by which plants resist…

Proactive zebrafish appear to have a much stronger wake-sleep rhythm than reactive fish. In the most reactive fish, rhythmicity appears to be lacking completely. This is shown with research by Leiden biologists, published in December 2018 in the journal BMC Biology.

New research published in the Journal of Leukocyte Biology suggests that these changes to the behavior of the immune system are persistent and can continue even after diet is improvedAlmost everyone knows that improving your eating habits will most likely improve your health. What most people may not…

The Corstens Commission that investigated whether there are any grounds for the rumours of antisemitism at the Faculty of Law has found no indication whatsoever for such expressions. This also applies to the professor in question. This is evident from the report that the commission chaired by Professor…

What are the genes and molecular mechanisms involved in bacteria-mediated plant drought tolerance?

Promotor: P.M. Brakefield

Dancing in style at the University Sport Centre, and cooking together or visiting the cinema. These two initiatives for bringing Dutch and international students together were the winners of the 2016 Van Bergen Prize. The awards were presented at the annual Diversity Symposium at Leiden University on…

How is vegetative development regulated in plants and how does this affect a plant’s life history strategy?

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.

Netherton Syndrome (NTS) is a rare genetic skin disease caused by mutations in the serine protease inhibitor Kazal-type 5 gene, which encodes the lympho-epithelial Kazal-type-related inhibitor. NTS patients have a profound impaired skin barrier function. Because SC lipids play a crucial role in the…

Promotor: G.P. van Wezel, Co-promotor: Y.H. Choi

In an Advance Online Publication biophysicist John van Noort and others show using magnetic tweezers that DNA is folded in compliant helices of chromatin. This allows enzymes access to the DNA needed for gene expression. Van Noort's research group made the discovery in close partnership with researchers…

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR)

Mashaghi lab conducts research at the interface of physics, engineering and biomedicine. We develop and use theoretical and experimental approaches to address basic and applied research problems.

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR)

An overview of awards and prizes granted to our staff and students in 2022, as well as special appointments at Leiden University and other institutions.

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR)

Physics and Engineering Approaches to Biomedicine and Pharmacology