NON-ANTAGONISTIC ANTIBODIES DIRECTED AGAINST THE ALPHA CHAIN OF THE IL7 RECEPTOR EXTRACELLULAR DOMAIN AND USE THEREOF IN CANCER TREATMENT

摘要

The description concerns humanized antibodies directed against the extracellular domain of the alpha chain of the receptor for interleukin-7 (IL-7), especially against the receptor for human IL-7 expressed on human cells (also designated human Th-7Ralpha or IL-7Ra or CD127) and which do not interfere with the IL-7 or TSLP signaling pathways. The antibodies described do not have an antagonistic effect on the IL-7 receptor, but may still present cytotoxic activity against CD127 positive cells. In a particular embodiment, the antibody does not have an agonist effect on the IL-7 receptor.