2,502 search results for “cell chemistry” in the Public website
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Outreach
The Leiden Institute of Chemistry organises and participates in several programmes for high school students and teachers.
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How cells determine the fate of proteins (and can we do it too?)
Cells in our bodies are often threatened by errors in our own proteins. The FLOW consortium, comprising scientists from various institutions including Leiden, is poised to meticulously map out for the first time how cells control proteins, correcting or removing faulty ones. This endeavour holds promise…
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How killer -T-cells migrate towards virus-infected cells
Joost Beltman (LACDR, Leiden University) has provided novel insights in the way T cells migrate towards virus-infected cells. This was accomplished by a combination of experimental research in the group of Ton Schumacher (Dutch Cancer Institute, NKI) and computer simulations in collaboration with Rob…
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Specialised immune cells have potential for new cancer immunotherapies
Researchers from Leiden University Medical Center (LUMC) and Netherlands Cancer Institute (NKI) have discovered how specialised immune cells can detect and remove cancers that are ‘invisible’ to the conventional defence mechanisms of the immune system. Their work has been published in Nature. The findings…
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How oxygen deprivation causes cancer cells to spread
In breast cancer, metastasis rather than the primary tumour is the cause of death. A lack of oxygen in the tumour cells promotes this metastasis, accompanied by a reprogramming of the cell's metabolism. PhD candidate Qiuyu Liu investigated these alterations to get more knowledge about the actionable…
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Niko Tinbergen lecture 2019: Stem cells, mini organs and eternal life
Three speakers, three fascinating science stories and a well-filled lecture hall. The Niko Tinbergen Lecture had a successful restart on 10 December 2019.
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Cancer cell mechanism found to be used against itself
Leiden biophysicists have found a new possible way to attack cancer cells. They have located ‘sinkholes’ on the cells where receptor proteins disappear from the surface. If a drug could push these proteins towards those areas, it would kill the cancer cell.
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Quantum particles and bacteria without cell walls: KLEIN grant for Beenakker and Claessen
Are Weyl particles the ideal conductors? Do cells without a cell wall play a role in chronic Tuberculosis infections? Carlo Beenakker and Dennis Claessen want to answer these questions. They both received a KLEIN grant from the NWO. With these grants, NWO wants to stimulate innovative, fundamental r…
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New cell therapy facility at Leiden Bio Science Park
American pharmaceutical company Bristol Myers Squibb will be building a new (CAR-T) cell therapy facility in the Oegstgeest part of the Leiden Bio Science Park. The company will manufacture and develop CAR T-cell therapy for patients with blood cancer (leukaemia), for example.
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Research
PBDL favors multidisciplinary research. Depending on the problems under investigation, PBDL establishes collaborations between experts from for example molecular genetics, molecular and electro cell physiology, biochemistry, organic chemistry, analytical mathematics, mathematical statistics and computational…
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Sensing drug responses of single cells using optical tweezers
Light can be used to apply forces on single cells. Focused lasers have been used by physicists to tweeze particles and to manipulate them. These so called “optical tweezers” can be used as mechanical phenotyping tools for characterising the mechanics of materials and living objects.
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Marc Koper receives the Netherlands Catalysis and Chemistry Award
During the 20th anniversary meeting of the Netherlands' Catalysis and Chemistry Conference, Marc Koper received the Netherlands Catalysis and Chemistry Award. ‘The ultimate candidate for the prize’, it says in one of the recommendation letters.
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Favourable visitation for MSc Chemistry and LST programmes
The Chemistry and LST master’s programmes are both structured on an individual basis and well-embedded in the research at the faculty. Those are the main conclusions of the oral report at the end of the visit of the visitation panel on October 10th.
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The promises and the dark side of stem cells
Geneticist Hans Clevers will give the first Niko Tinbergen lecture new style on 10 December, which is all about stem cells. The young Leiden professors Ariane Briegel and Susana Chuva de Sousa Lopes talk about bacterial noses and the cultivation of egg cells in the lab in short introductory lectures…
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The Nobel Prize in Chemistry went to an AI model (and rightly so)
Not experiments and lab coats, but computers and artificial intelligence: this year's Nobel Prize in Chemistry went to the inventors of the groundbreaking AI model, AlphaFold. This programme accurately predicts protein structures based on their genetic code—a crucial step in understanding biological…
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Luca Giomi wins ERC Consolidator Grant for flowing cells
Theoretical physicist Luca Giomi receives a 2 million euro ERC Consolidator Grant for research into flowing cells in a strange hexatic phase, which is half fluid, half solid.
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Modulation of the immune system for treatment of atherosclerosis
Cardiovascular diseases are the primary cause of death in the world with atherosclerosis as primary underlying cause.
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Can an employer demand messages from a private cell phone?
The Netherlands Council of State ruled at the end of March that WhatsApp and text messages on the work and private cell phones of civil servants are considered to be official records. This decision puts the government in a difficult position. How are you going to store millions of texts and WhatsApp…
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LUMC to build largest stem cell facility in the Netherlands
The Leiden University Medical Center (LUMC) will start construction this year of the largest non-profit stem cell and gene therapy facility in the Netherlands, and one of the largest facilities in Europe. NECSTGEN – the Netherlands Center for the Clinical Advancement of Stem Cell and Gene Therapies…
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Chemical biology of antigen presentation by MHC molecules
MHC class I and MHC class II molecules present peptides to the immune system to drive proper T cell responses. Pharmacological modulation of T-cell responses can offer treatment options for a range of immune-related diseases.
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Quantitative Super-Resolution Microscopy
Promotor: T. Schmidt
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Human DNA softer than DNA single-celled life
Single-celled organisms have stiffer DNA than multicellular lifeforms like humans and rice. Theoretical physicists managed to simulate the folding in full genomes for the first time to reach this conclusion. Publication in Biophysical Journal on February 7.
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Experimental drug BIA 10-2474 deactivates proteins in human nerve cells
At high doses, drug candidate BIA 10-2474 binds not only to the protein that it targets, but to other proteins as well. It thus deactivates proteins that are involved in the metabolism of nerve cells. This is what an international group of researchers from Leiden University and Erasmus MC, among others,…
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Biomimetic redox reactions of the Cu(II) μ-thiolate complex
Promotor: Prof.dr. E. Bouwman
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Jeroen Jansen
Assistant Professor at the Department of Analytical Chemistry, Radboud University Nijmegen, the Netherlands
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Cell-based medicinal products: grant rejected, paper published
Cell-based medicinal products (CBMPs) belong to an innovative and heterogeneous group of medicines called advanced therapy medicinal products (ATMPs). The limited analytical toolbox for CBMP characterization and release testing is one of the reasons why CBMP development is so challenging.
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Sander van Kasteren: from molecule builder to Professor of Chemical Immunology
Sander van Kasteren only noticed some small, subtle changes since he was appointed professor on 1 May. Still, he has to get used to the idea, even though he had been working towards the professorship for a few years. ‘I don't quite see myself as a professor yet.'
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Expertise
The CIGR brings together a diverse range of unique expertise in genome research rooted in biology, chemistry and physics. Members of the CIGR investigate genome folding and genome transactions. An important aspect is direct as well as long term relevance for medicine. The available expertise extends…
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This is how a channel is formed between two organelles
The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…
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Movements of steroid receptors inside the cell nucleus unraveled
Advanced fluorescence microscopy techniques have revealed how steroid receptors move inside the nucleus. The results were published by a team from Leiden University and the Erasmus Medical Center in Rotterdam, led by IBL-researcher Marcel Schaaf.
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forming embryo to cancer metastasis: the significance of collective cell movement
Luca Giomi has the first results of his ERC consolidator grant. He discovered that epithelial cells move collectively but in different ways, depending on the scale you look at. It is hexatic at small scales, and becomes nematic at larger scales: it is a multiscale order. This collective movement of…
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How our single-celled relatives package their DNA
A group of single-celled organisms organises its DNA in a similar way to higher organisms such as plants, animals, and fungi. However, the way packaged DNA is read out differs between the two related groups, Bram Henneman discovered. PhD defence on 5 December.
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Affinity-based profiling of the adenosine receptors
The adenosine receptors are proteins that reside in the extracellular membranes of cells. Activation of adenosine receptors plays a role in many physiological and pathological processes, such as immune responses and cancers.
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Force sensing and transmission in human induced pluripotent stem-cell-derived pericytes
Pericytes, the mural cells of blood microvessels, are important regulators of vascular morphogenesis and function that have been postulated to mechanically control microvascular diameter through as yet unknown mechanisms.
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Discoveries in 2023
From nanoparticles to colliding ice planets and from biological origami to new x-ray scanner techniques: this year again, our scientists have made wonderful discoveries. From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, take a look at each institute's…
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New research shows the limitations of coordination in chemistry
A common assumption in chemistry is that the coordination number of a catalyst's surface determines the reactivity of the reaction it catalyses. Strikingly, Leiden chemists have now proven that this is not true for nature’s most simple chemical reaction: the dissociation of hydrogen. The researchers…
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New imaging technology to assess early drug success
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…
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The Cell Observatory just got upgraded, and here is why
The European Commission has officially established Euro-BioImaging – which provides life scientists with open access to a broad range of technologies and resources in biological and biomedical imaging – as a European Research Infrastructure Consortium (ERIC). The Cell Observatory in Leiden is part of…
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Tunnel vision alarm in the search for more efficient hydrogen cells
A tenacious postdoc researcher persuaded Professor Marc Koper to research the oxygen reduction reaction. In Koper's eyes, there was little of interest there. But they promptly discovered a whole new way to improve fuel cells on hydrogen and oxygen. Their article appeared in Nature Catalysis on 07 Ju…
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How a Spanish post-doc brings her expertise in chemistry to Leiden genetics
Having a bachelor's, a master's and a PhD in Chemistry, Elena Sánchez López shifted to a more biological field of research for her postdoc. She completed all her studies at the University of Alcala, in Spain, before applying for a LEaDing fellowship at Leiden University, a Marie Sklodowska-Curie Cofund…
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Saloni Saxena
Science
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Chemistry research for better chemotherapy Finalist PNAS paper award
Last year, chemists Dennis Wander and Hermen Overkleeft contributed to an important discovery about a widely used cancer drug. Their research has now been recognised as Finalist for the PNAS Cozzarelli Prize in the Biomedical Sciences class.
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Leiden chemists discover new ways in which single-celled organisms organise their DNA
It has only recently been discovered that single-celled organisms (bacteria and archaea) also have histones—proteins that structure DNA. Now, Leiden PhD candidate Samuel Schwab has found that the histones in these organisms are much more diverse than previously thought. Schwab and his colleagues describe…
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Dynamics and regulation of the oxidative stress response upon chemical exposure
The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…
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Growth and development of actinomycetes
We aim to provide new insights relating to the spectacular multi-cellular life cycle of streptomycetes and other actinobacteria.
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Visualization of Vitamin A Metabolism
Vitamin A or retinol is essential in embryonic development, the visual cycle and the immune system.
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Francesco Buda
Science
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Roxanne Kieltyka
Science
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Madeline Kavanagh
Science
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Mario van der Stelt
Science