Invention Grant
US08092807B2 Modified leukocyte Ig-like receptor family members (LIRs) with increased affinity for class 1 MHC and their uses in modulating T-cell activation 失效
具有增加的1 MHC的亲和力及其在调节T细胞活化中的用途的改良的白细胞Ig样受体家族成员(LIR)

  • Patent Title: Modified leukocyte Ig-like receptor family members (LIRs) with increased affinity for class 1 MHC and their uses in modulating T-cell activation
  • Patent Title (中): 具有增加的1 MHC的亲和力及其在调节T细胞活化中的用途的改良的白细胞Ig样受体家族成员(LIR)
  • Application No.: US11914175
    Application Date: 2006-05-19
  • Publication No.: US08092807B2
    Publication Date: 2012-01-10
  • Inventor: Bent Karsten JakobsenYi LiRuth Karen Moysey
  • Applicant: Bent Karsten JakobsenYi LiRuth Karen Moysey
  • Applicant Address: DE Martinsried
  • Assignee: MediGene AG
  • Current Assignee: MediGene AG
  • Current Assignee Address: DE Martinsried
  • Agency: Banner & Witcoff, Ltd.
  • Priority: GB0510627.3 20050525
  • International Application: PCT/GB2006/001860 WO 20060519
  • International Announcement: WO2006/125963 WO 20061130
  • Main IPC: A61K39/00
  • IPC: A61K39/00
Modified leukocyte Ig-like receptor family members (LIRs) with increased affinity for class 1 MHC and their uses in modulating T-cell activation
Abstract:
The present invention provides polypeptides having the property of binding to a given Class I pMHC CHARACTERISED IN THAT said polypeptide has a KD for the said given Class I pMHC of less than or equal to 1 μM and/or has an off-rate (koff) for the said given Class I pMHC molecule of 2 S−1 or slower AND said polypeptide has at least a 45% identity and/or 55% similarity to a defined high-affinity ILT-like molecule AND said polypeptide inhibits CD8 binding to the given pMHC to a greater extent than a soluble truncated variant of Wild-Type ILT-2. Such high-affinity ILT-like molecules are useful, either alone or associated with a therapeutic agent, for the inhibition of cytotoxic T cell (CTL) responses.
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