Interestingly, the tumour growth advantage conferred by CEBPD overexpression was even more exacerbated in mice with high‐fat‐diet‐induced DM than in those with mock cell‐derived xenografts with or without DM and in those with CEBPD‐overexpressing cell‐derived xenografts without DM (Figure 6B). This evidence concerns the gene CEBPD and diabetes mellitus.