364 search results for “vaccine” in the Public website
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Vaccine delivery
Vaccination via the skin or the mucosae
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COVID-19 vaccine
Leiden researchers are helping develop safe COVID-19 vaccines.
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Adjuvanted nanoparticulate seasonal influenza vaccines
Promotor: Prof.dr. W. Jiskoot, Co-promotor: A. Kros
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Skin Barrier and Vaccination
The Skin Barrier and Vaccination group is led by Prof. Joke Bouwstra. One of the key functions of the skin is its barrier function, which is located in the uppermost layer of the skin, the stratum corneum. The stratum corneum consists of enucleated dead cells (corneocytes) embedded in a lipid matrix.…
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Degradome analysis of vaccines
The objective is to develop in vitro antigen degradation assays in order to mimic the fate of the antigen in vivo.
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Buccal and sublingual vaccine delivery
Because of their large surface area and immunological competence, mucosal tissues are attractive administration and target sites for vaccination.
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Formulation and Characterization of Vaccines
Vaccines are an extraordinary category of biopharmaceuticals. They are usually prophylactic and come in many types, from whole bacteria to peptides and nucleic acids. They are very cost effective and almost every human on the planet is vaccinated. The latter mandates that vaccines have to be extremely…
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Microneedle-mediated vaccine delivery
Promotores: Prof.dr. J. A. Bouwstra, Prof.dr. W. Jiskoot
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Following vaccines in the body
Myrra Carstens
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Social Influence and Vaccination Willingness
Is willingness to receive Covid-19 vaccine affected by social relationships? To what degree do relationships convey information, social pressure and role-models that alter individual’s willingness to be vaccinated?
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Development of thermostable lyophilized inactivated polio vaccine
The aim of current study was to develop a dried inactivated polio vaccine (IPV) formulation with minimal loss during the drying process and improved stability when compared with the conventional liquid IPV.
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Animal models for cutaneous vaccine delivery
Main challenges in skin vaccination are overcoming the stratum corneum (SC) barrier and targeting the antigen presenting cells (APC) in the epidermis and the dermis.
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Current and next generation influenza vaccines: Formulation and production strategies
Vaccination is the most effective method to prevent influenza infection. However, current influenza vaccines have several limitations. Relatively long production times, limited vaccine capacity, moderate efficacy in certain populations and lack of cross-reactivity are important issues that need to be…
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Explaining the gender gap in COVID-19 vaccination attitudes
In this article, Dimiter Toshkov aims to explains the gender gap in COVID-19 vaccination attitudes.
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Towards the development of synthetic vaccines against tuberculosis
The research described in this Thesis was aimed at designing and synthesizing nature-inspired compounds as part of TB vaccine discovery.
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Rational Design of Athero-Protective Vaccines; Novel Vaccine Formulations and Alternative Routes of Administration
Atherosclerosis is a chronic inflammatory disease affecting millions of people world-wide.
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Better vaccines against malaria and tuberculosis
The infectious diseases malaria and tuberculosis are responsible for 2.1 million deaths every year. Leiden researchers are currently testing a new tuberculosis vaccine.
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Transcutaneous vaccination by means of coated and hollow microneedles
Transcutaneous vaccination is attractive because it is non- or minimally invasive, pain free and the site of administration (skin) is easily accessible. What’s more, transcutaneous immunization can lead to a strong immune response owing to the presence of immune-competent cells in the skin.
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A vaccine against thickened artery walls
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.
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New generation alum based vaccine adjuvants
Aluminium-based adjuvants, such as aluminium hydroxide and aluminium phosphate, are well-known for their immune-stimulating properties.
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Alternative delivery of a thermostable inactivated polio vaccine
In the near future oral polio vaccine (OPV) will be replaced by inactivated polio vaccine (IPV) as part of the eradication program of polio. For that reason, there is a need for substantial amount of safe and more affordable IPV for low-income countries. Bioneedles, which are biodegradable mini-implants,…
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Intradermal delivery of nanoparticulate vaccines using coated and hollow microneedles
In summary, the collective results described in this thesis show that nanoparticulate vaccines can be delivered intradermally by coated and hollow microneedles and evoke antigen-specific immune responses.
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Liposome-based synthetic long peptide vaccines for cancer immunotherapy
Promotores: Wim Jiskoot; Ferry Ossendorp
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for Depth-Controlled Microinjection-Mediated Dermal Vaccination: A Study with Polio Vaccine in Rats
PURPOSE: The aim of the study was to develop a cheap and fast method to produce hollow microneedles and an applicator for injecting vaccines into the skin at a pre-defined depth and test the applicability of the system for dermal polio vaccination.
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Minipigs as an Animal Model for Dermal Vaccine Delivery
Appropriate animal models for intradermal vaccine delivery are scarce. Given the high similarity of their skin anatomy to that of humans, minipigs may be a suitable model for dermal vaccine delivery.
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Replacing the needle and syringe for vaccine administration
Promotores: Prof.dr. G.F.A Kersten, Prof dr. J.A. Bouwstra
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Parameter optimization toward optimal microneedle-based dermal vaccination
Microneedle-based vaccination has several advantages over vaccination by using conventional hypodermic needles.
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Mass Spectrometry-Based Degradomics Analysis of Toxoid Vaccines
The chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.
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Design of dissolvable microneedles for intradermal TB vaccination
Tuberculosis is an infectious disease which is spreaded through the air. It is caused by Mycobacterium tuberculosis and it led 1.7 million people to death in 2016. This mortarlity rate is concentrated in developing countries such as Indonesia, Philippines, Pakistan, and South Africa. These numbers make…
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Supramolecular peptide amphiphile nanoparticles as a novel allergy vaccine platform
Bet v1, the major allergen in birch pollen, is one of the main causes of allergies such as asthma and rhino-conjunctivitis. Additionally it is the main cause of birch pollen allergy in humans.
- Elastin-like polypeptide micelles for vaccine delivery
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Development of cross-protective influenza A vaccines based on cellular responses
Seasonal influenza vaccines provide protection against matching influenza A virus (IAV) strains mainly through the induction of neutralizing serum IgG antibodies. However, these antibodies fail to confer a protective effect against mismatched IAV. This lack of efficacy against heterologous influenza…
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Engineering of antigen-saving dissolving microneedles for intradermal vaccine delivery
The intradermal administration route is attractive for vaccine delivery, because of the highly populated antigen-presenting cells in the skin. However, the skin’s main physical barrier, the stratum corneum, prevents vaccines from entering the skin.
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Novel formulations and delivery strategies for inactivated polio vaccines: new routes with benefits
This thesis describes the development of improved formulations and alternative delivery strategies for polio vaccination.
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epitope-loaded virosomes adjuvanted with CpG as a potential influenza vaccine
Influenza CD8(+) T-cell epitopes are conserved amongst influenza strains and can be recognized by influenza-specific cytotoxic T-cells (CTLs), which can rapidly clear infected cells. An influenza peptide vaccine that elicits these CTLs would therefore be an alternative to current influenza vaccines,…
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Formulation of influenza T cell peptides: In search of a universal influenza vaccine
Promotoren: G.F.A. Kersten, W. Jiskoot, Co-promotor: J-P. Amorij
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What accounts for the variation in COVID-19 vaccine hesitancy in Eastern, Southern and Western Europe?
In this article, Dimiter Toshkov investigates the determinants of COVID-19 vaccine hesitancy and refusal, focusing on Eastern, Southern and Western Europe.
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from GBS capsular polysaccharides for structure-based selection of vaccine candidates
Glycoconjugate vaccines are composed of microbial poly- or oligosaccharides covalently linked to a carrier protein.
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PLGA-based particulate vaccine delivery systems for immunotherapy of cancer
Promotores: W. Jiskoot, F. Ossendorp
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Vaccination and Targeted Therapy Using Liposomes; Opportunities for Treatment of Atherosclerosis and Cancer
This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.
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Fast vaccine design and development based on correlates of protection (COPs) Influenza as a trendsetter
New and reemerging infectious diseases call for innovative and efficient control strategies of which fast vaccine design and development represent an important element.
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Development of hyaluronan-based dissolving microneedle arrays for dermal vaccination
Dissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the skin.
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Immunoproteomic Profiling of Bordetella pertussis Outer Membrane Vesicle Vaccine Reveals Broad and Balanced Humoral Immunogenicity
The current resurgence of whooping cough is alarming, and improved pertussis vaccines are thought to offer a solution. Outer membrane vesicle vaccines (omvPV) are potential vaccine candidates, but omvPV-induced humoral responses have not yet been characterized in detail.
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Solid Bioneedle-Delivered Influenza Vaccines Are Highly Thermostable and Induce Both Humoral and Cellular Immune Responses
The potential of bioneedles to deliver influenza vaccines was investigated.
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for high-throughput liposome formulation for personalized cancer vaccination
Liposomes hold great promise for peptide-based personalized cancer vaccination, especially when administered intradermally. However, current liposome preparation methods are very time consuming (resulting in long development times per formulation), whereas personalized cancer vaccination requires very…
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Development of a universal delivery system for tailor-made cancer vaccines
The potential of liposomal cancer vaccines
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Combatting infectious diseases; nanotechnology as a platform for rational vaccine design
Currently, several successful vaccines are available. However, for pathogens with a highly variable genetic composition, and for which serum IgG antibodies are not a useful correlate of protection, effective vaccines are yet to be developed.
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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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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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Microneedle-based drug and vaccine delivery via nanoporous microneedle arrays
In the literature, several types of microneedles have been extensively described. However, porous microneedle arrays only received minimal attention. Hence, only little is known about drug delivery via these microneedles. However, porous microneedle arrays may have potential for future microneedle-based…