ABCG2 and cancer: Also, EGCG decreased MDR in various cancer cells (Lyn-Cook et al., 1999 ▶; Mei et al., 2005 ▶; Qian et al., 2005 ▶; Nowakowska and Tarasiuk, 2016 ▶; Wen et al., 2017 ▶), and this supports the view that EGCG might suppress drug resistance via the downregulation of ABC transporters.