“…The ionically conjugated DL in PMX/DL has been shown to facilitate penetration of a cargo molecule (i.e. PMX) through the cell membrane by ASBT (Pangeni et al., 2019 ; Deng & Bae, 2020 ). In addition, DL, as well as Kolliphor P188 and Labrasol, can increase membrane flexibility to increase drug partitioning across the membrane (Gupta et al., 2013 ; DiMarco et al., 2017 ; Pavlović et al., 2018 ; Jha et al., 2020 ) DA in DL, as well as surfactants in CD, can reversibly open the tight junctions by autophosphorylation of epidermal growth factor receptor (EGFR) or dephosphorylation and rearrangement of zonula occludens-1 (ZO-1), which may facilitate the permeation of PMX or PMX/DL released from PMX/DL-CD through the cell membrane via the paracellular pathway (Raimondi et al., 2008 ; Stojančević et al., 2013 ; Zhou et al., 2013 ; Pavlović et al., 2018 ).…”