1000 resultados para Essai de complémentation de fragments protéiques (PCA)


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Délaissé de la recherche depuis de nombreuses décennies, l'objet architectural « château » est pourtant un élément central dans la compréhension des dynamiques artistiques sous l'Ancien Régime. Symbole de la réussite sociale de commanditaires enrichis au service étranger, il est aussi la marque de leurs ambitions culturelles et artistiques. Contrairement à une idée répandue, ils sont souvent à l'avant-garde de l'architecture de leur temps, devançant souvent les hôtels urbains dans l'adoption des formes à la française. Plusieurs châteaux sont documentés par des fonds d'archives de grand intérêt qui méritent d'être vus ou revus en relation avec les exigences actuelles de la recherche. A partir de quelques exemples lémaniques, notamment les châteaux possédés par les Mestral, les Gingins et les Sacconay, cette contribution mettra en évidence leur importance dans la topographie artistique régionale, tant au niveau de la diffusion des formes exogènes et de leur acculturation à un milieu particulier - protestant et patricien -, que dans l'émergence d'une classe d'artisans de très haut niveau. Architecture, décor, mais aussi mobilier et jardins du château permettent de dessiner une autre histoire de l'art, beaucoup moins périphérique que l'on pourrait s'y attendre.

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BACKGROUND: Plasmodium falciparum MSP2 is a blood stage protein that is associated with protection against malaria. It was shown that the MSP2 dimorphic (D) and constant (C) regions were well recognized by immune human antibodies, and were characterized by major conserved epitopes in different endemic areas and age groups. These Abs recognized merozoite-derived proteins in WB and IFA. Here, the goal was to determine in mice the immunogenicity of the two allelic MSP2 D and C domains formulated with different adjuvants, for their possible use in future clinical studies. METHOD: Female A/J, C3H, and ICR mice were immunized subcutaneously 3 times at 3-week interval with a mixture of allelic and conserved MSP2 long synthetic peptides formulated with different adjuvants. One week after the third injection, sera from each group were obtained and stored at -20°C for subsequent testing. RESULTS: Both domains of the two MSP2 families are immunogenic and the fine specificity and intensity of the Ab responses are dependent on mouse strains and adjuvants. The major epitopes were restricted to the 20-mer peptide sequences comprising the last 8aa of D and first 12aa of C of the two allelic families and the first 20aa of the C region, this for most strains and adjuvants. Strong immune responses were associated with GLA-SE adjuvant and its combination with other TLR agonists (CpG or GDQ) compared to alhydrogel and Montanide. Further, the elicited Abs were also capable of recognizing Plasmodium-derived MSP2 and inhibiting parasite growth in ADCI. CONCLUSION: The data provide a valuable opportunity to evaluate in mice different adjuvant and antigen formulations of a candidate vaccine containing both MSP2 D and C fragments. The formulations with GLA-SE seem to be a promising option to be compared with the alhydrogel one in human clinical trials.

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Comprend : De l'ame et de son immortalité ; Essai sur la chronologie