TGF-β1 treatment induces expression of the glutaminolysis enzyme glutaminase 1 (GLS1) in MCF-7 cells (Lee et al., 2016), human and murine lung fibroblasts (Bernard et al., 2018; Choudhury et al., 2020), and human hepatocellular carcinoma cells (Soukupova et al., 2017). The gene discussed is TGFB1; the disease is hepatocellular carcinoma.