How do macrophages and neutrophils contribute to metastatic onset?

This project aims to further understand the molecular details related to the biosynthesis and function of Galf containing glycoconjugates in fungal Aspergillus spp.

Gold nanorods are biocompatible nanoparticles that present an excellent two-photon signal that can be used to get high spatial resolution inside living cells. Gold nanorods are photostable and therefore can be followed inside cells for long time, with possible applications as trackers in live cells.

The Dutch Center for Travel Writing Studies s a scientific center that develops and coordinates initiatives to promote research into travel writing. It actively seeks contact with external (scientific and social) partners to collaborate on issues surrounding cultural / national identity, cultural contact…

Our immune system protects us against disease, but every now and then, something goes wrong: an enemy invades our bodies or our immune system attacks our own cells and we become ill. Doctors and researchers at the Leiden University Medical Center (LUMC) want to be able to manipulate the immune system…

Activity-based protein profiling (ABPP) is a functional proteomics technique for directly monitoring the expression of active enzymes in cell extracts and living cells. The technique relies on irreversible inhibitors equipped with reactive groups (warheads) that covalently attach to the active site…

Promotores: Prof.dr. H. S. Overkleeft, Prof.dr. G. A. van der Marel

In human cells, a meter-long DNA is condensed inside a micrometer-sized cell nucleus. Simultaneously, the genetic code must remain accessible for its replication and transcription to functional proteins.

The structure of bacterial cells provides crucial clues about their interaction with their host. What are the key structural features of a bacterial cell that determine pathogenicity? What roles do these structures play in the life cycle, and how do they change during the infection process?

Synthetic cells, also known as artificial cells or protocells, have wide ranging applications from drug delivery vectors to cell models. In biotechnology they can function as micro- or nanoreactors with possible applications in biocatalysis and photocatalysis. Phospholipids are by far the most commonly…

Promotores: A.H. Meijer, H.P. Spaink

Promotor: B. van de Water

Deficiency of glucocerebrosidase (GBA) underlies Gaucher disease, a common lysosomal storage disorder. Carriership for Gaucher disease has recently been identified as major risk for parkinsonism. Presently, no method exists to visualize active GBA molecules in situ. We here report the design, synthesis…

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

The applications of studying the early development of insects range from agriculture to material science.

Death in all types of melanomas is generally caused by metastasis. Uveal melanoma (UM) is the most common intraocular melanoma, there are currently no (patient-derived) animal models that faithfully recapitulate metastatic dissemination of UM.

In autoimmune diseases such as rheumatism and diabetes the immune system attacks autologous proteins. Leiden researchers are trying to discover how this comes about.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Medicine with University of Indonesia, Faculty of Medicine, and Universitas Katolik Indonesia Atma Jaya in Indonesia.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Law with Gadjah Mada University.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with University of California.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Humanities with Mohammed VI Polytechnic University.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Law with Holy Spirit University of Kaslik.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with National University of Kyiv, National University of Lviv, Odessa National Maritime University, Odessa National University, and V. N. Karazin Kharkiv National University in Ukraine.

This is an Erasmus+ International Credit Mobility project of Leiden University (university wide) with The Hebrew University of Jerusalem.

The research aims at achieving a European consensus on a harmonized LCA approach/framework to be applied in E-mobility sector. The research will focus on needs and gaps in current LCA practices in E-mobility and try to provide solutions for them based on the rich knowledge and experience represented…

What are the life-cycle environmental impacts and risks to human health and ecosystems of a III-V/Si PV system? How can these be expected to change when the system is deployed at industrial scale? What are the most favourable recycling scenarios?

In this project, we aim to develop mathematical models to mechanistically and quantitatively predict the dynamics of cellular stress pathway activation and its relation with toxic effects when cells are exposed to various toxicants.

Human and animal cells are very complex: very different chemical processes are going on at the same time, but they are separated from each other because the cells are divided in compartments. These compartments may also have a profound effect on the potential efficacy of therapeutics, because the drug…

In 2020, Leiden University launched its stimulated interdisciplinary programs, including one focused on regenerative medicine.

Discovery of metastasis promoting candidate drug targets

Image-Pro Plus, ImageJ, Cell Profiler, R, Knime and NIS-elements

Establishing human induced pluripotent stem cell (iPSC) CRISPR-Cas9-based fluorescent reporter cell lines for NF-kB signalling. We will use this to enable studying the dynamic activation and downstream signalling of Toll-like receptor and cytokine signalling in iPSC-derived differentiated cells in a…

Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…

In this research group, led by Dr. Joost Beltman, the aim is to employ mathematical and computational dynamical modelling approaches in order to quantitatively and mechanistically understand the dynamical behaviour and regulation of intracellular networks of genes, proteins and metabolites as well as…

Exploring the mechanism of targeted nanoparticle-mediated drug delivery using the zebrafish model

Pharmaceutical companies, governments and the general public have become increasingly aware that animal models used in drug testing lack vital aspects to serve as an accurate representation of human biology. As models of the human body should become more physiologically relevant, animal models no longer…

Intrigued by the way cells autonomously regulate their fate, we strive to understand and visualize cellular processes as the basis of Cell Signaling.

Source: Mediators Inflamm (2014)

Dr. Foks obtained this fellowship for the project “Can promotion of efferocytosis induce regression of atherosclerosis?”, in which she aims to identify novel targets to promote regression of atherosclerosis. This research grant allows her to initiate independent research for the next three years.

PhD defence

Chemotherapy that does nothing until you irradiate it with light. Sylvestre Bonnet receives a Vici grant of 1.5 million euros for the development of this treatment. The Leiden chemist wants to build a new molecule to fight tumours that are at the time still difficult to treat.

Getting personal

More and more medicines are becoming available that target a tumour’s specific traits. The use of chemotherapy is continually undergoing improvement.

Searching for ways to delay the need for a transplant and trying to build kidneys to order.

Leiden Professor of Translational Rheumatology Hans Ulrich Scherer has one foot in the clinic, where he helps patients, and the other in the lab, where he supervises researchers. He bridges these two worlds in his hunt for autoimmune rheumatic diseases.

In the hunt for a vaccine against cervical cancer, fundamental knowledge about the immune system and organic chemistry have been brought together and have already resulted in a vaccine that is now being tested in clinical trials. Scientists are now working hard on an improved variant.

Bacteria caught red-handed, deeply frozen just as they were about to cause Lyme’s disease. Ariane Briegel is wildly enthusiastic about the wonders she observes thanks to three elements: a freezing technique, a camera-equipped microscope, and AI. ‘It’s fascinating. Every single cell is different.’

What are the principles of genome folding and dynamics in bacteria?

Atherosclerosis (thickening of the artery wall) is the most common cause of heart attacks or strokes, and one of the most common causes of death in the western world. People with this condition have to take medicine all their lives, so a vaccine for atherosclerosis would be a breakthrough.

The Minor Computational Approaches to Disease, Signaling and Drug Targets (CADSDT) is focused on fundamental scientific research required for discovery of new drug targets and development of new drugs.