973 zoekresultaten voor “t cells” in de Publieke website
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Monitoring and detection of nanomaterials in biological media.
How do nanoparticles bioaccumulate and biodistribute in organisms?
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Worm en maagbacterie partners in strijd tegen allergische astma
Parasitaire wormen en maagbacteriën onderdrukken immuunreacties, zoals allergische reacties. Parasitoloog Hermelijn Smits en longarts Christian Taube van het LUMC proberen van deze micro-organismen te leren.
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Medicijnen op maat
Er komen steeds meer medicijnen die op specifieke kenmerken van een tumor gericht zijn. De toepassing van chemotherapie wordt nog steeds verbeterd.
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Bloedvaten op een chip maken oorzaak dementie zichtbaar
Nieuwe technologie biedt veel nieuwe mogelijkheden voor onderzoek, bijvoorbeeld naar dementie. ‘Organ-on-a-chip’ is een nieuwe technologie waarbij kleine stukjes orgaan worden gekweekt vanuit stamcellen op een kunststof plaatje. Een dergelijk stukje bloedvat, hart of zenuw biedt veel nieuwe mogelijkheden…
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Macrophages inhibit human osteosarcoma cell growth after activation with the bacterial cell wall derivative liposomal muramyl tripeptide in combination
CONCLUSION: This study demonstrates that human macrophages can be induced to exert direct anti-tumor activity against osteosarcoma cells. Our observation that the induction of macrophage anti-tumor activity by L-MTP-PE required IFN-gamma may be of relevance for the optimization of L-MTP-PE therapy in…
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In vitro and in vivo delivery of functionalized nanoparticles via coiled-coil interactions
Promotor: A. Kros, Co-promotor: R.R.C.L. Olsthoorn
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Two-photon multifocal microscopy for in vivo single-molecule and single-particle imaging
In this thesis we investigated the ability of two-photon multifocal microscopy for single-molecule microscopy in live cells and organisms.
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Integrating cellular and tissue dynamics with cell fate decisions through computational modeling
There is a need for alternative methods to replace, reduce and refine (3R) animal experimentation. Combining experimental data from high-throughput in vitro studies with in silico modeling is a promising approach to unravel the effect of chemicals on living cells and to gain a better understanding of…
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Dynamics of TNFalpha signaling and drug-related toxicity
In previous studies at our laboratory it was demonstrated that drug exposure of HepG2 cells can lead to an altered TNFα-induced NF-κB oscillatory phenotype, concurrent with a synergistically increased sensitivity for TNFα-induced apoptosis.
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Lipid mediated colloidal interactions
The lipid membrane is a basic structural component of all living cells. Embedded in this nanometer-thin barrier, membrane proteins shape the membrane and at the same time respond to the shape of the membrane.
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Dyslipidemia at the crossroad of the skin barrier and the arterial wall
The research described in this thesis shows that hypercholesterolemia, a well-established risk factor for atherosclerosis, can impact skin lipid pool and barrier function already at young age. In the field of atherosclerosis, we showed that the small peptide Lyp-1 can be used as a targeting molecule…
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The mechanical genome : inquiries into the mechanical function of genetic information
The four possible segments A, T, C and G that link together to form DNA molecules, and with their ordering encode genetic information, are not only different in name, but also in their physical and chemical properties.
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B cell modulation in atherosclerosis
Cardiovascular disease is a major global burden and atherosclerosis is the main underlying pathological process.
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Gene regulation in embryonic development
The human body consists of hundreds, perhaps thousands of different types of cells, each with different morphologies and functions, despite having the same genome.
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Chemical tools to monitor and control proteasome activities
Promotores: H.S. Overkleeft; G.A. van der Marel Co-Promotor: B.I. Florea
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Systems vaccinology: molecular signatures of immunity to Bordetella pertussis
Promotor: G.F.A. Kersten, W. Jiskoot, Co-promotor: B. Metz
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Insights into microtubule catastrophes: the effect of end-binding proteins and force
For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.
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Involvement of host and bacterial factors in Agrobacterium-mediated transformation
Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.
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Computational modeling of angiogenesis : from matrix invasion to lumen formation
Promotor: Roeland M.H. Merks
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Unraveling the auxin mechanism in 2,4-D induced somatic embryogenesis in Arabidopsis thaliana
Promotor: P. J. J. Hooykaas, Co-promotor: R. Offringa
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Applications for activity-based probes in biomedical research on glycosidases
Lysosomal glycosidases are acid hydrolases that fragment glycoconjugates in lysosomes.
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Design and synthesis of metal-based chemotherapeutic agents for targeted DNA interactions or DNA repair pathway modulation
The research presented in this thesis explores the chemotherapeutic potential of metal-based compounds as chemotherapy agents, with an initial focus on the synthesis and DNA interaction studies of platinum and palladium compounds utilizing the [Pt(bapbpy)]2+ scaffold. The study identifies intercalation…
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High throughput microscopy of mechanism-based reporters in druginduced liver injury
Promotor: B. van de Water
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Deciphering the complex paramagnetic NMR spectra of small laccase
Multicopper oxidase, laccase, can efficiently reduce oxygen to water and are mostly used in the enzymatic biofuel cells.
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Protein arginine methyltransferases as modulators of lipid metabolism and inflammation and the relevance for atherosclerosis
Acute cardiovascular clinical events such as myocardial infarction and cerebral stroke represent the major cause of death in Western societies. These pathologies are primarily resulting from atherosclerosis, a progressive condition characterized by the accumulation of lipids, immune cells, and fibrous…
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Bioengineering and biophysics of viral hemorrhagic fever
Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…
- Is iedere stamcel een stamcel?
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Horizon2020-subsidie voor toxicoloog Bob van de Water
Een internationaal onderzoeksconsortium onder leiding van Bob van de Water, hoogleraar Toxicologie van de Universiteit Leiden, heeft een prestigieuze Horizon2020-subsidie van 30 miljoen euro ontvangen.
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Animal Sciences
Wij voeren multidisciplinair onderzoek uit op het niveau van moleculen, cellen en organismen binnen de dierkunde. Ons doel is om fundamentele kennis te vergroten over gezondheid en ziekte.
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Protein Facility
Het Protein Centre kan u voorzien van gezuiverde eiwitten die essentieel zijn voor vele experimenten, variërend van in-vitro-inhibitorscreening en enzymatische analyse tot manipulatie van levende cellen.
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Research in Physics, Biological and Soft Matter Physics (MSc)
In deze master specialisatie ligt de focus op het begrijpen van biologische processen in hun natuurlijke context, zoals cellen en weefsels.
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Molecular, Cellular and Organismal Biology (MSc)
Deze opleiding biedt de mogelijkheid om onderzoek op moleculair, cellulair en organismaal niveau te verenigen, maar biedt ook de mogelijkheid om je te specialiseren op één van deze niveaus.
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Goed idee, een penis met stekels? Ontdek ‘t in de Nacht van Kunst & Kennis
Op 20 september verandert Leiden tijdens de Nacht van Kunst en Kennis in één grote proeftuin. Het festival mixt wetenschap met theater, cabaret, kunst en muziek. Leer van penisexpert Menno Schilthuizen en swing mee met Spinvis. Kaarten nu verkrijgbaar!
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Responding to environmental cues: the adaptive qualities of chromatin compaction proteins
Promotor: M. Ubbink, Co-Promotor: R. T. Dame
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Functional fluorescent materials and migration dynamics of neural progenitor cells
Promotie
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Characterization of innate immune cells in the glioma microenvironment
Promotie
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Novel chemical tools for target validation in neuroinflammation
Stelt
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Chromatin dynamics in single genes
Hoe beinvloed de structuur van één enkel gen de activiteit van genen die gevoelig zijn voor hormonen?
- Cell Observatory
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Life Science & Technology (MSc)
Deze tweejarige masteropleiding wordt aangeboden door het Leiden Institute of Chemistry en heeft een focus op technologische en fundamentele kennis en expertise. Tijdens de opleiding doe je onderzoek naar de processen van de levende cel met fundamenteel wetenschappelijke én toegepaste technologie. Je…
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Een rockster in een petrischaaltje
Met 's werelds eerste neurale synthesizer treden kunstenaar Guy Ben-Ary en zijn collega’s op tijdens het TodaysArt Festival in Den Haag op 21 september. Voor deze performance werkte hij samen met het lab van Erik Danen om neurale stamcellen te transformeren tot neurale netwerken op een chip.
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Immuniteit, Infectie en Tolerantie
Het immuunsysteem beschermt ons tegen ziekten, maar soms gaat het mis. Dan dringt er toch een vijand binnen of valt het immuunsysteem ons eigen lichaam aan, waardoor we ziek worden. Artsen en onderzoekers van het Leids Universitair Medisch Centrum (LUMC) willen het immuunsysteem zodanig sturen, dat…
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Regulation of actomyosin contraction as a driving force of invasive lobular breast cancer
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).
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Leven
Om te overleven op aarde heb je drie dingen nodig: een atmosfeer, water en zonlicht.
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Inhibitor discovery of phospholipases and N-acyltransferases
In this thesis an activity-based probe was discovered that could visualize the activity of PLAATs. With an optimized gel-based ABPP assay in hand, screening of a compound library led to the discovery of alpha-ketoamides as a hit for PLAAT3.
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Targeted Therapy for Triple-Negative Breast Cancer
The research described in this thesis focused on identifying novel drug targets and synergistic combinations for triple-negative breast cancer (TNBC), a virulent subtype of breast cancer with a dismal prognosis and limited therapeutic options.
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The electrochemical reduction of dioxygen and hydrogen peroxide by molecular copper catalysts
The electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…
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Towards photo-CIDNP MAS NMR as a generally applicable enhancement method
Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)
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Targeting Human Proteasomes: Substrates, Inhibitors and Prodrugs
Large parts of the research described in this Thesis aims at the development of oligopeptide-masked toxins and their in situ immunoproteasome-mediated activation.
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Systems pharmacology of the endocannabinoid system
In this thesis, a system pharmacology approach, integrating metabolomics, pharmacology and chemical biology, was applied to understand and modulate the endocannabinoid system across different model systems (cells, zebrafish, mice and humans).