…and could potentially modulate the metabolism of SN-38 in vivo (Zheng et al., 2001; Guillemette, 2003; Villeneuve et al., 2003; Girard et al., 2004; Yamanaka et al., 2004), as well as response to irinotecan-based chemotherapy (Ando et al., 2000; Innocenti et al., 2004; Marcuello et al., 2004;…