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    • 3. 发明申请
    • MODIFIED T CELL RECEPTORS AND RELATED MATERIALS AND METHODS
    • 改良的T细胞受体及相关材料与方法
    • WO2009042570A3
    • 2009-06-04
    • PCT/US2008077333
    • 2008-09-23
    • US HEALTHROBBINS PAUL FROSENBERG STEVEN AMORGAN RICHARD A
    • ROBBINS PAUL FROSENBERG STEVEN AMORGAN RICHARD A
    • C07K14/735
    • C07K14/705
    • The invention is directed to a modified T cell receptor (TCR) comprising an amino acid sequence of a wild-type (WT) TCR with one or more amino acid substitutions in the CDR2 and/or CDR3 regions of the alpha and/or beta chains of the TCR, wherein the modified TCR, as compared to the WT TCR, (i) has an enhanced ability to recognize target cells when expressed by CD4+ T cells and/or CD8+ T cells and (ii) does not exhibit a decrease in antigen specificity when expressed by the CD4+ T cells and/or CD8+ T cells. Polypeptides, proteins, nucleic acids, recombinant expression vectors, host cells, populations of cells, antibodies, and pharmaceutical compositions related to the modified TCR also are part of the invention. Further, the invention is directed to methods of treating or preventing a disease in a host and methods of detecting a diseased cell in a host.
    • 本发明涉及一种修饰的T细胞受体(TCR),其包含在α和/或β链的CDR2和/或CDR3区域中具有一个或多个氨基酸取代的野生型(WT)TCR的氨基酸序列 的TCR,其中与WT TCR相比,修饰的TCR,(i)当由CD4 + T细胞和/或CD8 + T细胞表达时具有增强的识别靶细胞的能力,和(ii)不显示抗原的降低 当由CD4 + T细胞和/或CD8 + T细胞表达时的特异性。 多肽,蛋白质,核酸,重组表达载体,宿主细胞,细胞群,抗体和与修饰的TCR相关的药物组合物也是本发明的一部分。 此外,本发明涉及治疗或预防宿主疾病的方法以及检测宿主中病变细胞的方法。