Fig. 3

Effects of psoralen on the morphology of SMMC7721. a SMMC7721 cells shrunk in the dose of 40 μM psoralen or 0.1 μM thapsigargin for 12–48 h. b Abnormalities of endoplasmic reticulum and cytoplasmic structure in SMMC7721 in the dose of 40 μM psoralen or 0.1 μM thapsigargin for 24 h. Yellow boxes represent the abnormal region