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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

The Hollywood political thriller during the Cold War, 1945-1962

Bowman, Deena January 2014 (has links)
This thesis investigates a corpus of films identifiable as Hollywood political thrillers during the Cold War spanning a period of seventeen years, between 1945 and 1962. It aims to dispel the assertion by critics and scholars that the political thriller originates with the release of The Manchurian Candidate (Frankenheimer, 1962). Moreover, it is my intent to engage an interdisciplinary approach given that the relationship between contemporary American cinema, ideology and propaganda has often been overlooked (see Shaw, 2007). Utilizing textual and contextual analysis, I shall argue that The Manchurian Candidate is a transitional film with respect to the political thriller. I shall also offer an explanation for the frequent mislabeling of Hollywood political thrillers as film noir, of which generic hybridity or overlap is a contributing factor. The first part of this thesis shall establish a political and historical context, which includes a discussion of Hollywood’s early entry into the Cold War, U.S. strategies of containment and the threat women posed to U.S. national security vis à vis Ethel Rosenberg. Given that the political thriller emerged as a distinct subgenre during the Cold War, the first part of this thesis shall include a chapter on technology and innovation (e.g. lighting, format, film stock) as a means of supporting prime generic theme of authenticity. Five exemplary mini-case studies shall be presented to demonstrate the way in which the Hollywood political thriller delivered distinct narrative and visual style that both projected and reflected Cold War discourses. Philip Wylie’s “momism” shall be considered within the context of the political thriller and Cold War discourses surrounding gender, U.S. national security and the atomic bomb. I shall expand upon current discussions of momism, approaching it through distinct representations evident within the political thriller. Given the pervasiveness of the nuclear threat during the Cold War, I shall discuss the thematic elements of fear and the unknowability of the atomic bomb in relation to the political thriller. In the second part of this thesis, I identify three distinct cycles of atomic political thrillers, in which issues of vulnerability of the physical locale, the nuclear family and the mind are addressed.
182

Biological and clinical data integration and its applications in healthcare

Hagen, Matthew 07 January 2016 (has links)
Answers to the most complex biological questions are rarely determined solely from the experimental evidence. It requires subsequent analysis of many data sources that are often heterogeneous. Most biological data repositories focus on providing only one particular type of data, such as sequences, molecular interactions, protein structure, or gene expression. In many cases, it is required for researchers to visit several different databases to answer one scientific question. It is essential to develop strategies to integrate disparate biological data sources that are efficient and seamless to facilitate the discovery of novel associations and validate existing hypotheses. This thesis presents the design and development of different integration strategies of biological and clinical systems. The BioSPIDA system is a data warehousing solution that integrates many NCBI databases and other biological sources on protein sequences, protein domains, and biological pathways. It utilizes a universal parser facilitating integration without developing separate source code for each data site. This enables users to execute fine-grained queries that can filter genes by their protein interactions, gene expressions, functional annotation, and protein domain representation. Relational databases can powerfully return and generate quickly filtered results to research questions, but they are not the most suitable solution in all cases. Clinical patients and genes are typically annotated by concepts in hierarchical ontologies and performance of relational databases are weakened considerably when traversing and representing graph structures. This thesis illustrates when relational databases are most suitable as well as comparing the performance benchmarks of semantic web technologies and graph databases when comparing ontological concepts. Several approaches of analyzing integrated data will be discussed to demonstrate the advantages over dependencies on remote data centers. Intensive Care Patients are prioritized by their length of stay and their severity class is estimated by their diagnosis to help minimize wait time and preferentially treat patients by their condition. In a separate study, semantic clustering of patients is conducted by integrating a clinical database and a medical ontology to help identify multi-morbidity patterns. In the biological area, gene pathways, protein interaction networks, and functional annotation are integrated to help predict and prioritize candidate disease genes. This thesis will present the results that were able to be generated from each project through utilizing a local repository of genes, functional annotations, protein interactions, clinical patients, and medical ontologies.
183

Developing methods for understanding the nature of voting patterns and party competition in Britain

Borisyuk, Galina January 2012 (has links)
This research both develops new methods and expands upon existing methodologies in order to improve our understanding of voting patterns and party competition in Britain. The thesis comprises five sections, each of which relates to a particular research focus. The first and principal section describes the process of determining a new method for decomposing electoral bias for three-party competition under simple plurality rules of voting. The study of electoral bias is important for voting systems that requires periodic boundary reviews intended to equalise electorate and to remove malapportionment. These papers describe both the process for developing the threeparty bias method and later its application to UK general elections from 1983 onwards. The second section uses aggregate data gathered for the elections to the Greater London Authority in order to understand the patterns of electoral support across the capital, particularly support for minor parties. A considerable amount of research effort has been expended upon providing reliable models for electoral forecasting both in the UK and elsewhere. The third section includes a paper that develops a forecast model that utilises aggregate local election data to estimate national vote shares for the three main parties in the UK. A fourth section brings together a series of papers that are linked by the themes of voter behaviour, either in terms of geographical or ballot context. A study of voter turnout in a London borough describes the relationship between proximity to polling station and electoral turnout at different types of election. A 8 number of papers included in this section also detail the effects of candidate ballot order on electoral support. The fifth and final section groups together two papers that using individual-level survey data to describe the pattern of candidate recruitment for local elections in Britain and, specifically, the under-recruitment of both women and Black, Asian and other minority ethnic candidates.
184

Bases génétiques de la sténose valvulaire aortique calcifiée

Eyendja, christian 12 1900 (has links)
La sténose valvulaire aortique (SVA) est une valvulopathie résultant en l'ouverture incomplète de la valve aortique. La calcification des feuillets associée au vieillissement est la cause la plus importante de la SVA. Sa pathogénèse implique des dépôts de lipoprotéines, de l'inflammation et de la calcification des feuillets. Notre étude vise à identifier les gènes associés à une prédisposition à la SVA afin de mieux comprendre les mécanismes sous-jacents à cette maladie et potentiellement identifier de nouvelles cibles thérapeutiques. Pour ce faire, nous avons recruté 190 patients avec SVA dégénérative et 192 témoins, appariés pour l'âge et le sexe, puis effectué une étude d’association par gènes candidats en utilisant des marqueurs génétiques polymorphiques (SNP). Les gènes candidats choisis incluent (1) ceux dont les polymorphismes ont été présumés associés à la SVA dans des études antérieures (APOB, APOE, ESR1, PTH et VDR) (2) des gènes dont les polymorphismes ont été significativement associés et validés pour quelques maladies inflammatoires (IL-10, TNFAIP3) ou pour le métabolisme lipidique (PCSK9, LDLR) dans des études d’association pangénomiques, et (3) des gènes impliqués dans la pathogénie de la SVA à partir d’études faites sur des modèles animaux en lien avec la calcification (BMP2, CCR5, CTGF, LRP5, MSX2, WNT3), le remodelage tissulaire (CTSS, MMP9) ou le métabolisme lipidique (SMPD1). Pour les gènes des groupes (1) et (2), nous avons utilisé les SNPs rapportés dans la littérature comme étant significativement associés. Pour le groupe (3), nous avons effectué une approche par «tagSNP» qui consiste à sélectionner un groupe de SNP capturant la variabilité génétique dans la région ciblée. Au total, 81 SNPs dans 18 gènes ont été testés. Nous avons trouvé une association nominale avec les gènes BMP2 (OR = 1.55, IC95%: 1.14-2.10, p = 0.004) et LRP5 (OR = 1.47, IC95%: 1.06-2.03, p = 0.023) après ajustement pour la maladie coronarienne. Les gènes BMP2 et LRP5, impliqués dans la calcification selon certains modèles expérimentaux, sont donc associés à la SVA. Ce travail devrait être validé dans une cohorte indépendante plus large dans un avenir rapproché et il pourrait être étendu à d’autres gènes. / Aortic valve stenosis (AVS) is a valvular heart disease caused by calcification leading to incomplete opening of the aortic valve. Calcification of valve leaflets associated with aging is the most common cause of AVS. AVS pathogenesis involves lipoprotein deposits, chronic inflammation and calcification of the aortic valve leaflets. Our study aims to identify genes associated with AVS in order to better understand its mechanisms and potentially identify new therapeutic targets. We recruited 190 cases with AVS of different severity and 192 controls matched for age and sex. Then we conducted a candidate gene association study using single nucleotide polymorphisms (SNPs). The candidate genes selected include: (1) those with polymorphisms putatively implicated in previous genetic association studies of AVS (APOB, APOE, ESR1, PTH and VDR); (2) those with validated associations to inflammatory diseases (IL-10, TNFAIP3) or lipid metabolism (LDLR ,PCSK9) in genome-wide association studies and, (3) genes impliated in AVS pathogenesis from studies with animal models and thought to be involved in calcification (BMP2, CCR5, CTGF, LRP5, MXS2, WNT3); tissue remodeling (CTSS, MMP9) or lipid metabolism (SMPD1). For the first two categories of genes, we tested the SNPs reported to be associated in the literature and, in the third category we used a tag-SNP approach which consists of selecting a subset of SNPs to capture variability in the target region. Finally, 81 SNPs in 18 genes were tested. We found a nominal association of BMP2 (OR=1.55, CI: 1.14 – 2.10, p=0.004) and LRP5 (OR=1.47, CI: 1.06 – 2.03, p=0.023) with presence of AVS after adjustment for coronary heart disease. The genes BMP2 and LRP5, which are known to be involved in calcification based on animal models, are associated with AVS. The result of the current study should be validated in a larger independent cohort in the near future and then, it could also be extended to the study of other genes.
185

Patrons de variabilité chez vitellaria paradoxa (karité) : étude phylogéographique et analyse combinée de la variation des acides gras, des tocophérols et de gènes candidats / Variation patterns in vitellaria paradoxa (shea tree) : phylogeography and combined analysis of the variation trends in fatty acid, tocopherol and candidate genes

Allal, François 17 December 2010 (has links)
Les patrons de variation au sein des espèces d'arbres résultent d'évolutions complexes dont certaines sont particulièrement liées à la condition d'arbre. Si les facteurs expliquant cette variabilité ont été abordés pour les espèces des zones tempérées, ils restent encore peu connus pour des espèces fruitières des zones tropicales sèches offrant des particularités sur le plan adaptatif et relevant d'un processus de domestication ancien. Pour répondre à cet enjeu, l'objectif scientifique de cette thèse est de mieux comprendre l'impact des facteurs évolutifs sur la variabilité au sein d'une espèce d'arbre en zone soudano-sahélienne. Nous nous sommes intéressés à Vitellaria paradoxa (karité), une espèce jouant un rôle économique majeur par la production de beurre à partir des graines, dont l'aire de distribution s'étend du Sénégal à l'Ouganda sous la forme de peuplements naturels et agroforestiers. Dans une approche phylogéographique basée sur l'analyse du polymorphisme de marqueurs moléculaires supposés neutres (microsatellites chloroplastiques et nucléaires, et régions intergéniques du chloroplaste) et sur la modélisation des niches écologiques du Karité à différentes périodes du Quaternaire, nous mettons en évidence l'impact des perturbations liées aux dernières glaciations (il y a 20000 ans) sur la diversité génétique de l'espèce. Dans une seconde approche méthodologique, nous étudions l'impact des déterminants environnementaux sur la variabilité des constituants chimiques des graines de Karité, permettant d'énoncer de nouvelles hypothèses. Enfin, nous nous intéressons à l'expression du polymorphisme de gènes candidats, codant les enzymes stéaroyl-ACP-désaturase (SAD) et homogentisate phytyltransférase (HPT), en relation avec la variabilité de la composition chimique en acides gras et en tocophérols des graines. Les résultats obtenus permettent notamment de discuter de l'impact de la sélection naturelle, de la domestication et de la dérive génétique, et d'apporter des hypothèses évolutives et fonctionnelles potentielles expliquant la variabilité observée. / Patterns of variation within tree species are the result of complex evolutionary changes, some of which are particularly related to the condition of trees. If the factors explaining this variability were discussed for species in temperate zones, they remain little known for fruit tree species of dry tropics, which show special adaptive features and result from an old domestication process. To meet this challenge, the scientific purpose of this thesis is to improve our understanding of evolutionary factors affecting the variability within a tree species in the Sudano-Sahelian zone. We got interested in Vitellaria paradoxa (Shea tree), a species which plays a major economic role for the production of butter from seeds and whose distribution range extends from Senegal to Uganda. In a phylogeographic approach based on the analysis of polymorphism supposedly neutral molecular markers (chloroplast and nuclear microsatellites and chloroplast intergenic regions) and based on ecological niche modelling of Shea tree at different periods of the Quaternary, we shape the role of last glacial maximum (20.000 YBP) on the genetic diversity of the species. In a second methodological approach, we study the impact of environmental determinants on the variability of Shea nuts chemical constituents, stating novel hypotheses. Finally, we investigate the polymorphism of candidate genes, encoding enzymes stearoyl-ACP-desaturase (SAD) and homogentisate phytyltransférase (HPT), in connection with the variability of relative fatty acids compositions and tocopherols contents in seeds. Through the results obtained, we discuss the impact of natural selection, domestication and genetic drift, and provide evolutionary and functional hypotheses that potentially explain the varia bility observed.
186

Charakterizace kandidátních genů hybridní sterility Hstx1 a Hstx2 / Characterization of the Hstx1 and Hstx2 hybrid sterility candidate genes

Kašíková, Lenka January 2015 (has links)
Speciation, the formation of new species, is an essential evolutionary process that causes species diversity on the Earth. At the beginning of this process is the separation of two populations by a reproductive barrier that prevents gene flow between these populations. One of the mechanisms, which enable reproductive isolation, is hybrid sterility (HS). It is a mechanism of postzygotic isolation that is described in a number of eukaryotes. The first discovered gene of hybrid sterility in vertebrates is the mice gene Hst1, later identified as gene Prdm9. By genetic and molecular analysis the locus on the X chromosome was determined, whose interaction with Prdm9 causes sterility or reduced fitness in male hybrids. This locus contains two genetic factors: Hstx1, causing an abnormal morphology of spermatozoa, and Hstx2, causing an arrest in spermatogenesis in pachytene spermatocytes and sterility. In my thesis I focus on the effect of deletion of a candidate hybrid sterility gene Fmr1nb on the X chromosome. The analysis of males B6N.Fmr1nbmut with deletion variants of the Fmr1nb gene showed that Fmr1nb is one of the factors influencing spermatogenesis. An increase in morphologic abnormalities in spermatozoa occurred in males with Fmr1nb gene deletion. This phenotype is identical with Hstx1. The effect...
187

Zákon o volbě prezidenta republiky a jeho komparace s úpravou ve státech EU / The Czech presidential election law and its comparison with presidential election amendments of European Union countries

Šutka, Pavel January 2015 (has links)
The dissertation investigates a constitutional amendment to the 2012 legislation of the presidential election. The amendment introduced an election of the president through a popular vote, which was a historical milestone for the Czech legal system. However, the new adjustment was adopted in haste and evinces many deficiencies; that was proven in the 2013 presidential election. Therefore, the aim of the dissertation is to describe problematical parts of the new legal adjustment and find some possible solutions. The main topics are as follows: 1) modification of the basic concepts of the election system, 2) candidate nomination process, 3) election campaign funding and 4) ethical aspects of the election campaign. A comparison of legal adjustments of 14 EU countries with the direct presidential election (the Czech Republic, Bulgaria, Finland, France, Croatia, Ireland, Cyprus, Lithuania, Poland, Portugal, Austria, Romania, Slovakia and Slovenia) was done, in order to find appropriate solutions. Apart from the results of comparison, the dissertation is based on reports by GRECO, OSCE and the corresponding Czech judicature. In conclusion, the Czech adjustment of the presidential election meets every democratic principle, but, at the same time, contains many mistakes. Especially the queries of "election campaign...
188

Identification et caractérisation de nouveaux facteurs de l' hôte impliqués dans les intéractions plante-Potyvirus : Analyses génétiques et fonctionnelles chez Arabidopsis Thaliana.

Ouibrahim, Laurence 28 September 2012 (has links)
Ce travail a porté sur l'identification et la caractérisation de nouveaux facteurs de l'hôte nécessaires au cycle infectieux des virus à ARN (genre Potyvirus) chez Arabidopsis thaliana, ces facteurs pouvant constituer des cibles pour la lutte génétique contre les phytovirus. L'exploration de la diversité génétique naturelle d'Arabidopsis a conduit à l'identification d'un gène récessif de résistance au Watermelon mosaic virus (WMV) chez l'accession Cvi-0. Il s'agit du gène rwm1 qui agit à un stade précoce de l'interaction en empêchant l'accumulation du virus au niveau des premières cellules infectées. Les résultats de clonage positionnel de rwm1, de séquençage d'allèles de résistance et de sensibilité et de validation fonctionnelle argumentent en faveur d'un rôle de la phosphoglycérate kinase chloroplastique (cPGK), une enzyme clé de la photosynthèse, dans la résistance conférée par rwm1. En parallèle, une stratégie gène candidat a été mise en œuvre pour étudier le rôle de la protéine kinase Target Of Rapamycin (TOR) dans l'interaction plante-potyvirus. La caractérisation de lignées RNAi pour le gène TOR d'Arabidopsis montre une diminution voire une suppression de l'accumulation du WMV, ainsi qu'une réduction de l'accumulation du Turnip mosaic virus. L'étude comparative de la composition des complexes de liaison à la coiffe entre une lignée sauvage et une lignée RNAi TOR en conditions saines et infectées par le WMV suggère un rôle de TOR dans l'interaction avec les potyvirus par le biais d'une régulation de l'activité du facteur d'initiation de la traduction eIF3. / This work describes the use of forward and reverse genetics in Arabidopsis thaliana to identify and characterize new host factors required for the infectious cycle of plant RNA viruses (genus Potyvirus). The exploration of the Arabidopsis natural genetic diversity led to the identification of the recessive rwm1 gene for resistance to Watermelon mosaic virus (WMV). Rwm1-mediated resistance was identified in the Cvi-0 accession where it acts at an early stage of the infection process by impairing virus accumulation in initially infected tissues. Map-based cloning results, allelic sequence analysis and functional validation experiments, strongly suggest the involvement of chloroplast phosphoglycerate kinase (cPGK), a key photosynthetic enzyme, in rwm1-mediated resistance. In parallel, a candidate gene approach was developed to investigate the potential role of the TOR kinase (Target Of Rapamycin) in the control of susceptibility to potyviruses. Arabidopsis RNAi lines displaying partial TOR inactivation showed a significant decrease of susceptibility to the infection by two potyviruses, namely WMV and Turnip mosaic virus. The results from a comparative proteomic analysis of cap-binding complexes between wild type and TOR RNAi infected and healthy lines suggest that TOR could play a role in plant-potyvirus interactions by regulating the activity of the translation initiation factor eIF3. Overall, this work opens a challenging research area to provide novel insights on the molecular principles underlying viral infection processes and opportunities to improve and optimize the way we tackle plant resistance to viruses through a diversification of genetic targets.
189

Etude clinique et génétique de l’albinisme oculocutané : développement d’outils de diagnostic moléculaire et recherche de nouveaux gènes / Clinical and molecular study of oculocutaneous albinism : development of molecular diagnosis tools and search for new genes

Morice-Picard, Fanny 11 December 2013 (has links)
Notre travail s’est intéressé à l’albinisme oculocutané en étudiant ses aspects clinico- moléculaires. Malgré l’analyse approfondie des gènes connus d’albinisme oculocutané, 15 % des patients restent sans mutation identifiée indiquant que les mutations sont situées dans des régions géniques non analysées par les techniques classiques de diagnostic moléculaire, ou qu’il existe d’autres gènes d’albinisme oculocutané. Nous avons établi une base de données clinico- biologiques décrivant les caractéristiques de plus de 400 patients analysés. Des outils de diagnostic moléculaire ont été développés à la recherche de mutations situées dans les introns et les régions régulatrices et de réarrangements géniques. Différentes stratégies ont également été utilisées pour rechercher des gènes candidats. La puce à façon a permis l’identification de grands réarrangements dans les gènes TYR, OCA2 et SLC45A2 et un réarrangement complexe du gène OCA2 chez 2 patients non apparentés. L'analyse de gènes candidats nous a permis d'identifier, chez 5 patients non apparentés présentant un albinisme oculocutané non syndromique, des mutations dans le gène SLC24A5, très récemment associé à l’AOC6. Le séquençage d’exome de 6 patients a mis en évidence des gènes candidats pour lesquels des analyses complémentaires sont poursuivies afin de confirmer leur implication dans la pathogenèse de l’AOC.Les résultats de ce travail permettent de redéfinir les aspects cliniques et moléculaires de l’AOC, d’identifier de nouveaux mécanismes moléculaires à l’origine de l’AOC ainsi que des gènes candidats dont la fonction dans le développement pigmentaire reste à élucider. L’identification de nouveaux gènes impliqués dans l’AOC pourrait permettre de mieux comprendre et de mieux prendre en charge les patients avec un AOC. / Our work focused on oculocutaneous albinism (OCA) by studying its clinical and molecular aspects. Despite a thorough analysis of the known genes involved in oculocutaneous albinism, 15% of patients remain without diagnostic at the molecular level indicating that mutations are located in unexplored regions and are undetected by standard techniques or that other genes are involved in albinism. We established a clinicomolecular database describing more than 400 patients and developped molecular tools in order to improve molecular diagnostic including a custom high resolution array-CGH dedicated to the four OCA genes (TYR, OCA2, TYRP1 and SLC45A2). We also used different strategies to identify new genes. Array-CGH allows us to detect large deletion in TYR, OCA2 and SLC45A2 and a complexe rearrangement in OCA2 in 2 unrelated patients. We identified, in 5 patients presenting with a non syndromic OCA, mutations in SLC24A5, recently associated with OCA6. Exome sequencing of 6 different patients allows us to identify candidate genes, for which further studies are required to confirm their involvement in OCA pathogenesis. The results of this work allowed us to delineate clinical and genetics aspects of more than 400 OCA patients and to identify new molecular mechanisms leading to OCA and candidates genes for which exact nature of their functions has to be understood. Giving the complexity of pigmentary system development and its regulation, identification of new genes leading to OCA could help to better understand OCA and take care of patients
190

Synthèse et évaluation d’un candidat vaccin à 3 composantes (Agoniste TLR7-glycopeptoïde-OVA 323-339) dans le cadre d’une application en immunothérapie anti-tumorale / Synthesis and evaluation of a vaccine candidate (Agonist TLR7-Glycopeptoid-OVA 323-339) in the context of an application for anti-tumor immuno-therapy

Szekely, Thomas 10 July 2014 (has links)
Les antigènes saccharidiques associés aux tumeurs (TACAs) sont considérés comme des marqueurs de cellules tumorales. Le développement de candidats vaccins synthétiques capables d'induire des réponses immunitaires robustes dirigées contre ces TACAs est un vaste champ d'investigation depuis de nombreuses années. Dans cette optique, mon travail s'est principalement focalisé sur la conception d'un candidat vaccin à trois composantes qui peut activer spécifiquement les cellules dendritiques, les cellules TH et les cellules B. La première partie de la thèse consistait à effectuer une étude approfondie des méthodes submonomère et monomère en solution pour accéder à une plateforme β-tripeptoïde O-α-GalNAc (épitope des cellules B), servant de mime du cluster trimérique de l'antigène Tn (GalNAc-α-O-Ser/Thr). Pour renforcer la stimulation du système immunitaire, un agoniste du récepteur Toll 7 (TLR7) préalablement synthétisé (exprimé par les cellules dendritiques) a été ensuite couplé à cette plateforme par l'intermédiaire de l'acide amino-caproïque, pris comme espaceur. L'édifice candidat vaccin a ensuite été complété par conjugaison au peptide OVA 323-339 (épitope des cellules TH ) grâce à la réaction de cycloaddition 1,3-dipolaire CuAAC. Enfin, l'aptitude du candidat vaccin à induire une réponse anti-Tn a été évaluée par l'équipe du Pr. C. Leclerc de l'Institut Pasteur de Paris. En parallèle de ces études, nous avons mis au point des conditions de ligation multivalente par couplage thiol-ène (TEC) pour l'obtention de peptoïdes S-glycosylés. / Tumor-Associated Carbohydrate Antigen (TACAs) are considered as cancer cells markers. The development of synthetic vaccine candidates which are able to induce a robust immune response against these TACAs is a field of great interest since many years. In this context, my work has been focused mainly on the design of a three-component vaccine candidate with the ability to activate specifically dendritic cells, T H cells and B cells. The first part of the thesis consisted in making a deep study on the submonomer and monomer methods for solution-phase synthesis of a β-tripeptoid O-α-GalNAc scaffold (B epitope). Its role is to mimic the Tn (GalNAc-α-O-Ser/Thr) trimeric cluster which is naturally present on tumor cells surface. To strengthen the stimulation of the immune system, a TLR7 agonist (receptor express by dendritic cells) has been, firstly, coupled through an amino-caproic acid spacer. The vaccine candidate has been next completed by conjugation with the OVA 323- 339 peptide (TH epitope) using the Copper-catalized Alkyne-Azide Cycloaddition (CuAAC). Finally, the capacity of this construction to generate anti-Tn response have been evaluated by the groupe of C. Leclerc of Institut Pasteur of Paris. At the same time, we have also developed conditions for multivalent ligations using thiol-ene coupling (TEC) to obtain a β-tripeptoid S-α-GalNAc scaffolds.

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