| abstract |
FIELD: biotechnology. n SUBSTANCE: invention relates to the field of biotechnology. Presented is anti-human 4-1BB antibody and its antigen-binding fragment. Invention also relates to a pharmaceutical composition for treating a malignant neoplasm containing anti-human 4-1BB antibody or a fragment thereof. n EFFECT: antibody of the invention has improved properties relative to the reference human anti-human 4-1BB antibody, that is improved binding affinity, improved induction of T-cell proliferation and IFNγ secretion by T-cells, as well as improved capacity to reduce or eliminate malignant growth in vivo. n 14 cl, 22 dwg, 7 tbl, 5 ex |