ABCG2 and neoplasm: Several metabolic pathways related to biosynthesis, energy supply, such as biosynthesis of amino acids, carbon fixation pathways, carbon metabolism, fructose and mannose metabolism, pyruvate metabolism, glycolysis/glucogenesis, and ABC transporters were also more abundant in tumor tissue (P < 0.05), While biofilm formation, fatty acid biosynthesis, metabolism and degradation were decreased.