2,434 search results for “stem cell biology” in the Public website
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monolayer graphene as a proton-selective membrane for direct methanol fuel cells
This thesis focused on the exploration of monolayer graphene as a membrane in direct methanol fuel cell (DMFC) applications, with improvements achieved through plasma exposure or damage- free chemical functionalization.
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Dennis Claessen
Science
d.claessen@biology.leidenuniv.nl | +31 71 527 5052
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dermatology of immune-mediated dermatological diseases: cutaneous T-cell lymphoma
The complex pathophysiology of immuno-dermatological disorders is multifactorial, including environmental, skin microbiome, (epi)genetic and immune dysregulation conditions. This project primarily focuses on the orphan disease mycosis fungoides, a subtype of cutaneous T-cell lymphoma. The current pathophysiological…
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Terpenoids and terpenoid indole alkaloids in Catharanthus roseus cell suspension cultures
Promotor: Prof.dr. R. Verpoorte, Co-Promotores: N.R. Mustafa, A.E. Schulte
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.
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Joey Zuijdervelt
Science
j.l.zuijdervelt@lacdr.leidenuniv.nl | +31 71 527 6227
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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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Comparative biology of common and grey seals along the Dutch coast : stranding, disease, rehabilitation and conservation
Promotores: H.A. Udo De Haes, P.M. Brakefield
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system : an ancestral model for plasma membrane transport in plant cells
Multicellular giant algae Chara species have been widely used in physiological studies for decades.
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Environmental and genetic drivers of wood and lignin formation in flowering plants
In this project, we will study the genetic and environmental drivers of woodiness and stem lignification at the level of plant‐to‐gene‐to‐molecule.
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CD40-targeted dendritic cell delivery of PLGA-nanoparticle vaccines induce potent anti-tumor responses
Dendritic cells (DC) play a prominent role in the priming of CD8(+) T cells. Vaccination is a promising treatment to boost tumor-specific CD8(+) T cells which is crucially dependent on adequate delivery of the vaccine to DC.
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Arthur Ram
Science
a.f.j.ram@biology.leidenuniv.nl | +31 71 527 4914
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Comparative biology of common and grey seals along the Dutch coast
What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?
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Skin Lipids: Localization of Ceramide and Fatty Acid in the Unit Cell of the Long Periodicity Phase
The lipid matrix of the skin's stratum corneum plays a key role in the barrier function, which protects the body from desiccation. The lipids that make up this matrix consist of ceramides, cholesterol, and free fatty acids, and can form two coexisting crystalline lamellar phases: the long periodicity…
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Biomarkers for the response to immunotherapy in patients with non- small cell lung cancer
PhD defence
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Understanding and Targeting Coronaviruses Exploring advanced cell culture models and host-directed antiviral strategies
PhD defence
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TGF-β signaling dynamics in epithelial-mesenchymal plasticity of cancer cells
PhD defence
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unchained; molecular mechanisms of ubiquitin-like signal transduction in cell cycle progression
PhD defence
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Maarten Lubbers
Science
m.lubbers@biology.leidenuniv.nl | +31 71 527 5075
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Chemical biology of glucosylceramide metabolism fundamental studies and applications for Gaucher disease
This thesis describes biochemical investigations of glucocerebrosidase (GBA), the lysosomal β- glucosidase that is deficient in Gaucher disease (GD).
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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…
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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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Projects
Research projects
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Cell architecture and pathways for parallel secretion in the filamentous fungus Aspergillus niger
Research aims: Identification of key genes involved in programming the cellular architecture of A. niger & Genetic engineering of A. niger in order to improve its secretory capacities and rheological behavior under industrial fermentation conditions.
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microneedle arrays effectively induce ovalbumin-specific antibody and T-cell responses in mice
The aim of this work was to study the applicability of antigen-coated pH-sensitive microneedle arrays for effective vaccination strategies. Therefore, a model antigen (ovalbumin) was coated onto pH-sensitive (pyridine-modified) microneedle arrays to test pH-triggered antigen release by applying the…
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lic-acid)-based particulate vaccines: particle uptake by dendritic cells is a key parameter for immune activation
Poly(lactic-co-glycolic acid) (PLGA) particles have been extensively studied as biodegradable delivery system to improve the potency and safety of protein-based vaccines. In this study we analyzed how the size of PLGA particles, and hence their ability to be engulfed by dendritic cells (DC), affects…
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Improving the filamentous fungus Aspergillus niger as cell factory for starch degrading enzymes
We aim to develop A. niger strains that produce more starch degrading enzymes even in the absence of starch.
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Synthesis and applications of cell wall glycopolimer fragments from Staphilococci and Enterococci
Carbohydrates are present on the surface of bacteria making them suitable antigen candidates for vaccine development. This thesis deals with the synthesis of two carbohydrate-based components; the capsular polisaccharide of S. aureus type 5 and teichoic acids from staphilococci and enterococci speci…
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Collaborative and effective drug development
There are many complex links in the chain that provides patients with new drugs: from fundamental science, to clinical tests, to production. The entire chain can be found in Leiden. Leiden University, the Leiden University Medical Center (LUMC) and the businesses at the Leiden Bio Science Park (LBSP)…
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Douwe Atsma
Faculteit Geneeskunde
d.e.atsma@lumc.nl | +31 70 526 2020
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Structural and functional analysis of proteins involved in natural product biosynthesis and morphological differentiation in Streptomyces
Streptomyces present a valuable platform for natural product discovery. Lugdunomycin is a novel angucycline-derived polyketide from Streptomyces sp QL37, with unprecedented skeleton and antimicrobial activity.
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Animal Sciences
We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.
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Louie Krol
Science
l.krol@cml.leidenuniv.nl | +31 71 527 2727
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Kees Musters
Science
musters@cml.leidenuniv.nl | +31 71 527 7461
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Leiden scientists map cell types in fetal kidney
Kidney failure is a serious issue because kidneys cannot regenerate themselves after injury. A possible solution consists of artificially growing healthy kidney tissue. To achieve that, scientists first need to understand kidney development during the earliest stages, in the fetus. Leiden researchers…
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Silva Nova – Restoring soil biology and soil functions to gain multiple benefits in new forests
We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…
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Theo Anagnostopoulos
Science
t.anagnostopoulos@biology.leidenuniv.nl | +31 71 527 2727
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Cells ‘walk’ to firm ground
A new mathematical model may explain how body cells get their shapes and what makes them move within a tissue. The model provides fundamental knowledge for applications in tissue engineering, amongst other things. Publication in open-access journal iScience.
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Mathematics-based strategies for repairing tumour blood vessels
How does the extracellular matrix coordinate endothelial cell behavior during angiogenesis, and how do metabolic waste-products and matrix-degrading enzymes produced by the tumour modify the extracellular matrix so as the change the cellular coordination?
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poly(i:C): a defined adjuvanted vaccine for induction of antigen-specific T cell cytotoxicity
For effective cancer immunotherapy by vaccination, co-delivery of tumour antigens and adjuvants to dendritic cells and subsequent activation of antigen-specific cytotoxic T cells (CTLs) is crucial. In this study, a synthetic long peptide (SLP) harbouring the model CTL epitope SIINFEKL was encapsulated…
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Chengyi Liu
Science
c.liu@cml.leidenuniv.nl | +31 71 527 2727
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Serkan Aslan
Science
s.aslan@lacdr.leidenuniv.nl | +31 71 527 5919
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Key publications
Key publications of the Cancer Drug Target Discovery group
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Aggressiveness of cancer cells halted
Zebrafish-human communication shows that cancer cells lacking a signaling protein are less able to develop aggressive metastatic properties. This discovery has been made by molecular cell biologist Claudia Tulotta. PhD defence 14 June.
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Synthesis of phosphodiester-containing bacterial cell wall components: teichoic acids, capsular polysaccharides and phosphatidyl glycerol analogues
Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée
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Frank Schaftenaar
Science
f.h.schaftenaar@lacdr.leidenuniv.nl | +31 71 527 5134
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Bregje Brinkmann
Science
b.w.brinkmann@cml.leidenuniv.nl | +31 71 527 7475
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Pieter Baas
Science
baas@nhn.leidenuniv.nl | +31 71 527 2727
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Edi Gittenberger
Science
e.gittenberger.1@biology.leidenuniv.nl | +31 71 568 4881