Recombinant mhc molecules useful for manipulation of...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A61K 35/14 (2006.01) A61K 38/17 (2006.01) A61K 38/19 (2006.01) C07K 14/52 (2006.01) C07K 14/74 (2006.01) C07K 17/00 (2006.01) C12N 5/00 (2006.01) C12N 15/19 (2006.01) C12Q 1/68 (2006.01) G01N 33/538 (2006.01) G01N 33/543 (2006.01) G01N 33/566 (2006.01) G01N 33/569 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2302779

Two-domain MHC polypeptides useful for manipulation of antigen-specific T- cells are disclosed. These polypeptides include MHC class II-based molecules that comprise covalently linked .beta.1 and .alpha.1 domains, and MHC class I-based molecules that comprise covalently linked .alpha.1 and .alpha.2 domains. These polypeptides may also include covalently linked antigenic determinants, toxic moieties, and/or detectable labels. The disclosed polypeptides can be used to target antigen-specific T- cells, and are useful, among other things, to detect and purify antigen-specific T-cells, to induce or activate T-cells, and to treat conditions mediated by antigen-specific T-cells.

L'invention concerne des polypeptides de CMH à deux domaines utiles pour la manipulation de cellules T spécifiques à un antigène. Ces polypeptides comprennent des molécules basés sur la classe II du CMH qui comprennent des domaines beta 1 et alpha 1 liés par covalence, et des molécules basés sur la classe I du CMH qui comprennent des domaines alpha 1 et alpha 2 liés par covalence. Ces polypeptides peuvent également comprendre des déterminants antigéniques, des fractions toxiques et/ou des marqueurs détectables liés par covalence. Les polypeptides de l'invention peuvent être utilisés pour cibler des cellules T spécifiques à un antigène et sont utiles, notamment, pour détecter et purifier des cellules T spécifiques à un antigène, induire ou activer des cellules T, ainsi que pour traiter des affections induites par des cellules T spécifiques à un antigène.

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