IMMUNOTHERAPEUTICS BASED ON MAGEA1-DERIVED EPITOPES

The present invention relates to the field of immunotherapy, in particular, adoptive T cell therapy of MAGEA1-associated cancer. TCR alpha chain constructs (TRA) and/or a TCR beta chain constructs (TRB) of TCR constructs specific for an epitope in complex with a human MHC-I, wherein the epitope is an epitope of a MAGEA1 protein, nucleic acids encoding them and host cells expressing them. The invention also provides pharmaceutical compositions or kits based theron. The invention teaches combinations of TCR constructs directed to different epitopes from the same antigen expressed by the same cancer or infectious agent capabel of being presented by different MHC-I molecules, wherein optionally, the antigen is MAGEA1. Preferably, at least one of the TCR constructs used in the combination is a TCR construct of the invention disclosed herein. The pharmaceutical combinations or kits may be used for immunotherapy of a subject, e.g., adoptive T cell therapy or TCR gene therapy, e.g., for use in treatment of a cancer such as lung cancer, colorectal cancer, or multiple myeloma. The invention also provides peptides comprising the epitopes rcognized by the TCR constructs of the invention, which may be for use in vaccination, e.g., peptide vaccination or RNA vaccination.