US Patent 11753454 IL-15 and IL-15R\alpha sushi domain based immunocytokines

The present invention relates to an immunocytokine comprising (a) a conjugate, and (b) an antibody or a fragment thereof directly or indirectly linked by covalence to said conjugate, wherein said conjugate comprises (i) a polypeptide comprising the amino acid sequence of the interleukin 15 or derivatives thereof, and (ii) a polypeptide comprising the amino acid sequence of the sushi domain of the interleukin 15R alpha (IL-15Rα) or derivatives thereof; and uses thereof.