Genetic upregulation of ApoC-I has been shown in gastric cancer (Oue et al, 2004), whereas in a recent breast cancer study ApoC-I formed part of a multi-protein index (developed from SELDI analysis) that could predict metastatic relapse in high-risk primary breast cancer patients receiving adjuvant chemotherapy (Goncalves et al, 2006). This evidence concerns the gene APOC1 and gastric cancer.