CELL FOR USE IN IMMUNOTHERAPY WHICH CONTAINS MODIFIED NUCLEIC ACID CONSTRUCT ENCODING WILMS TUMOR GENE PRODUCT OR FRAGMENT THEREOF, METHOD FOR PRODUCING SAID CELL, AND SAID NUCLEIC ACID CONSTRUCT
A cell of the present invention contains a nucleic acid construct encoding a WT1 gene product or a fragment of the WT1 gene product. The nucleic acid construct contains (i) a region encoding a desired fragment of the WT1 gene product and (ii) only AUG as a functional start codon. The present invention can provide a cell into which the nucleic acid construct is introduced so that an expression level of a WT1 gene product or a fragment of the WT1 gene product is remarkably enhanced.