BCAT1 catalyzes the initial step of branched-chain amino acid catabolism and is known to promote cancer proliferation and invasion through the activation of either the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin pathway or Wnt/β-catenin signal transduction (Nong et al., 2022). Here, MTOR is linked to cancer.