Rapid, efficient purification of hsv-specific t-lymphocytes...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/38 (2006.01) A61K 38/08 (2006.01) A61K 38/10 (2006.01) A61K 38/16 (2006.01) A61K 39/245 (2006.01) A61P 31/22 (2006.01) C07K 7/06 (2006.01) C07K 7/08 (2006.01) C07K 14/035 (2006.01) C12N 7/01 (2006.01) C12P 21/02 (2006.01) C12Q 1/68 (2006.01) C12Q 1/70 (2006.01)

Patent

CA 2492598

Described is a method of identifying an immunologically active antigen of a virus that attacks skin, as well as a method of enriching a population of lymphocytes for T lymphocytes that are specific to a virus that attacks skin. Also provided are HSV antigens and epitopes that are useful for the prevention and treatment of HSV infection that have been identified via the methods of the invention. T-cells having specificity for antigens of the invention have demonstrated cytotoxic activity against cells loaded with virally-encoded peptide epitopes, and in many cases, against cells infected with HSV. The identification of immunogenic antigens responsible for T-cell specificity provides improved anti-viral therapeutic and prophylactic strategies. Compositions containing antigens or polynucleotides encoding antigens of the invention provide effectively targeted vaccines for prevention and treatment of HSV infection.

L'invention concerne un procédé pour identifier un antigène immunologiquement actif d'un virus qui attaque la peau, de même qu'un procédé pour enrichir la population de lymphocytes T qui sont spécifiques à un virus attaquant la peau. L'invention concerne aussi des antigènes HSV et des épitopes qui sont utiles dans la prévention et le traitement de l'infection par HSV, qui ont été identifiés par les procédés de l'invention. Les lymphocytes T possédant une spécificité pour les antigènes de l'invention ont fait preuve d'une activité cytotoxique contre les cellules chargées d'épitopes peptidiques à codage viral et, dans plusieurs cas, contre les cellules infectées par HSV. L'identification des antigènes immunogéniques responsables de la spécificité aux lymphocytes T permet d'élaborer des stratégies antivirales thérapeutiques et prophylactiques améliorées. Les compositions contenant des antigènes ou des polynucléotides codant pour les antigènes de l'invention constituent des vaccins ciblés de manière efficace pour la prévention et le traitement de l'infection par HSV.

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