Isolert antistoff eller fragment derav, nukleinsyre som koder for nevnte antistoff eller antistoffragment, vektor som omfatter nukleinsyren, celle som omfatter vektoren eller hybridom som uttrykker antistoffet eller antistoffragmentet, fremgangsmåte for fremstilling av antistoff eller antistoffragment, farmasøytisk sammensetning omfattende nevnte antistoff eller antistoffragment samt fremgangsmåte for fremstilling av antistoff.

摘要

PROBLEM TO BE SOLVED: To provide compositions and methods for controlling immune responses of subjects, and more specifically, to provide a human antibody and human monoclonal antibody which control natural killer cell activity and admit potentiation of cytotoxicity of natural killer cells in mammalian subjects.SOLUTION: The antibody includes antigen binding characteristics similar to antigen binding characteristics of 1-7F9 or 1-4F1 that is a monoclonal antibody of cross-reactivity with KIR2DL1, -2 and -3. There are also provided fragments and derivatives of the antibody; a pharmaceutical composition including the antibody, the fragments and derivatives of the antibody; and the use thereof, especially, the use thereof in treatments to increase natural killer cell activities or cytotoxicity in subjects.