DNM1 and neoplasm: Although the use of in vitro studies using cultured tumor cells to speculate on the efficiency of ALA-PDD or ALA-PDT in vivo is limited, inhibitors of both the ABCG2 transporter and dynamin-mediated exocytosis could be useful for the enhancement of ALA-PDD or ALA-PDT, and further investigation of those inhibitors for clinical application is needed.