MTOR and cancer: According to the KEGG database, as shown in Figure 4A, 19 metabolic pathways were disturbed before and after LS treatment (p < 0.05), including choline metabolism and central carbon metabolism in cancer, caffeine metabolism, D-arginine and D-ornithine metabolism, glycerophospholipid metabolism, sphingolipid metabolism, ether lipid metabolism, arginine and proline metabolism and mTOR signaling pathway, etc.