Immunization protocol for directed expansion and maturation

A - Human Necessities – 61 – K

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A61K 39/00 (2006.01) C07K 16/00 (2006.01)

Patent

CA 2741435

A first antigen is administered to a subject to select progenitor B cells that are suitable for subsequent production of a desirable affinity-matured antibody, and then a second antigen is administered to stimulate the expansion of B cells that produce that affinity-matured antibody. An immunization protocol is used in which two different antigens are administered (usually in series, but in some embodiment simultaneously), where the first antigen elicits an efficient germline antibody response and the second antigen elicits an efficient and desired affinity-matured antibody response.

Selon la présente invention, un premier antigène est administré à un sujet pour sélectionner des lymphocytes B progéniteurs qui sont adaptés pour la production consécutive dun anticorps maturé par affinité souhaitable, et ensuite un deuxième antigène est administré pour stimuler lexpansion de lymphocytes B qui produisent cet anticorps maturé par affinité. Un protocole dimmunisation est utilisé dans lequel deux antigènes différents sont administrés (généralement en série, mais dans certains modes de réalisation simultanément), où le premier antigène induit une réponse danticorps de lignée germinale efficace et le deuxième antigène induit une réponse danticorps maturé par affinité efficace et souhaitée.

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