2,067 search results for “cell signaling” in the Public website
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Cell adhesion signaling: dynamics, migration, and metastasis
Cell adhesion signaling
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Chemical tools to study lipid signaling
Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.
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Cell-autonomous and host-dependent CXCR4 signaling in cancer metastasis: insights from a zebrafish xenograft model
Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska
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Insights from modeling metabolism and amoeboid cell motility in the immune system
This thesis focuses on two processes involved in fighting infections: metabolism and immune cell motility and navigation.
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Emerging approaches to study cell-cell interactions
The aim of this thesis is to study cell-cell interactions and the development of an assay to explore and quantify the exchange of membrane compounds.
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Chemokine signaling in Tuberculosis and Salmonella infection
Who benefits from CXCR/CXCL chemokine signaling during infection: host or pathogen?
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Cell spread and cell migration in 3D gels
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microscopy-based drug target discovery in pathogen-meidated inflammatory respons signalling
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…
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Lipid signaling in brain diseases
Multiple Sclerosis, Parkinson’s and Alzheimer’s disease are the most common neurodegenerative disorders. Unfortunately, no effective treatments are currently available to halt the progression of these neuroinflammatory diseases [1].
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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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Stefan Semrau Lab (Quantitative Single-Cell Biology)
We study cell-fate decision-making using embryonic stem cells as a model system. Stem cells integrate a large number of cues to direct their development into a great variety of cell types.
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Spreading the Fire: Why is Pyroptotic Cell Death Contagious?
The word ¨pyroptosis¨ can be understood as ¨fiery falling¨, which describes the bursting of pro-inflammatory signals from the dying cell. Our observations indicate that pyroptosis also ¨spreads like wildfire¨ and once a cell dies via pyroptotic cell death, neighbouring cells are more prone to die as…
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Whole-cell biosensor for label-free detection of GPCR-mediated drug responses in personal cell lines
Source: Biosens Bioelectron, Volume 74, pp. 233-42 (2015)
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Exploitation of host chemokine signalling by pathogenic mycobacteria
Promotores: A.H. Meijer, H.P. Spaink
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Toll-like receptor signaling in the innate immune system of zebrafish larvae
Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez
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PI3K signaling and adherens junctions in invasive lobular breast cancer
Invasive lobular carcinoma (ILC) is the second most common type of breast cancer.
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Erik Danen
Science
- Cell Observatory
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Chemokine signaling mechanisms underlying inflammation and infection control: insights from the zebrafish model
This thesis focuses on the role of chemokine receptors CXCR3 and CCR2 in the inflammatory process and infection control using the zebrafish model.
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Unraveling the role of signaling networks controlled by Grainyhead like transcription factor in breast cancer subtypes
This project is funded by the Dutch Cancer Society. The project will be part of an ongoing research line aimed at identifying mechanisms of cancer therapy resistance and metastasis. In this project, it will be investigated how the Grainyhead family of transcription factors controls therapy response…
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Functions of P38 and ERK kinases in zebrafish early development
Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar
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Cell Therapy
Decision support tool for cell therapy commercialization and business development
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Stem cells as cure
Leiden has a long history in the treatment of blood cell cancer. Research to find better therapies never stands still. One of the potential treatments currently being worked on is a ‘living medicine’.
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Single gold nanorods in live cells
Visualization of biomolecules in living cells by tagging with gold nanoparticles.
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3D Cell Environments
Living cells on topographically-controlled substrates: Understanding Cell Motility in a Quasi-3D Environment
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Anisotropy in cell mechanics
Mechanical interactions between cells and their environment play an important role in many biological processes.
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Polar auxin transport: translating environmental signals into plant developmental responses
1. What is the exact role of PIN proteins in PAT? 2. How is PIN polarity established, and how is it modulated by AGC kinase-mediated phosphorylation? 3. What is the role of the AGC kinase, as modulators of PAT, in translating environmental signals, such as gravity, light or mechanical stress, to plant…
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Novel Immune Cell-Based Therapies for Atherosclerosis
Promotor: Prof.dr. J. Kuiper, Co-Promotor: S.C.A. de Jager
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Bob van de Water
Science
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Towards Biosolar cells
BioSolar Cells is a five-year research project in which ten knowledge institutions and 45 private industries work together.
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Optogenetic activation of intracellular adenosine A2A receptor signaling in the hippocampus is sufficient to trigger CREB phosphorylation and
Source: Mol Psychiatry (2015)
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Supramolecular materials: from biosensors to cell delivery devices
The group of Dr. Roxanne Kieltyka designs and synthesizes molecules that self-assemble into polymeric materials using specific non-covalent interactions. These substrates can be used for numerous applications in medicine ranging from disease detection to cell delivery depending on the (bio)molecular…
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Cancer cells: A closer look
What distinguishes a tumour cell from a healthy cell? Researchers are trying to answer this question as precisely as possible. Certain differences could eventually lead to new therapies.
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Nanowire based Tandem Solar Cells
In this project innovative technology for photovoltaics cells is developed and analysis of ecological and health related risks are explicitly accounted for.
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The early stress response of jasmonic acid in cell suspension cultures of Catharanthus roseus
In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…
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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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simulation studies of angiogenesis - Reverse engineering the role of tip cells and pericytes in vascular development
Promotor: Prof.dr. R.M.H. Merks
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Image-based phenotypic screening for breast cancer metastasis drug target discovery
The main aim of this thesis was to unravel the signaling and regulatory networks that drive tumor cell migration during breast cancer metastasis.
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Centre for Microbial Cell Biology
The CMCB brings together microbial cell biology expertise in Leiden. It aims at optimal resonance between the groups and maximal exploitation of the available infrastructure and to develop innovative cross-boundary technology platforms.
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Investigations on the role of impaired lysosomes of macrophages in disease
The research described in this thesis combines the latest insights in lysosomal function with lysosome centred cell signalling.
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Novel regulators of prostate cancer stem cells and tumor aggressiveness
Promotor: R.C.M. Pelger Co-Promotor: G. van der Pluijm
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AGC3 kinases and calmodulins in plant growth responses to abiotic signals
Promotor: Prof.dr. P. Hooykaas, Co-promotor: Dr. R. Offringa
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Off the wall: characterisation and exploitation of a cell wall deficient life style in filamentous actinomycetes
Almost all bacteria are enveloped by a cell wall that provides cellular protection.
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Systems microscopy to unravel cellular stress response signalling in drug induced liver injury
Promotor: B. van de Water
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Ahmed Mahfouz: 'The mystery of brain diseases, unravelled cell by cell'
Which brain cell does what, when Parkinson's disease arises? It won't be long before this jigsaw is solved piece by piece. Ahmed Mahfouz, computational biologist, combines bio-knowledge from Leiden with algorithms from Delft and is getting closer to finding the key.
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RESTORING T-CELL HOMEOSTASIS BY IN VIVO MANIPULATION OF DENDRITIC CELLS
The loss of T-cell homeostasis and tolerance towards self-antigens is the underlying cause of autoimmune and inflammatory diseases like atherosclerosis, rheumatoid arthritis or type I diabetes. Traditionally, the treatment of these diseases consisted on systemic immune suppression, which can entail…
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Mast cells as immune regulators in atherosclerosis
Cardiovascular syndromes are the major cause of death in Western societies.
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Vaccination against atherosclerosis; induction of protective CD8 T-cells through immunization
Atherosclerosis, in particular rupture of atherosclerotic plaques, is the underlying cause of most heart attacks or strokes and is the leading cause of death worldwide.
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CD8+ T-cells in atherosclerosis: mechanistic studies revealing a protective role in the plaque microenvironment
Atherosclerosis is the most important underlying process that drives cardiovascular disease, and is characterized by an accumulation of cholesterol which triggers an inflammatory response in the vessel wall.
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Cell Observatory: visualising structures of life
From molecule, to cell, to organism. The high-level drug research at the Cell Observatory aimes at reducing the spread of cancer and developing new medicines for tuberculosis.