“In this study, we test the hypothesis that the accumulation of intracellular retinoic acid may lead to the suppression of ALDH expression and thus increase cytotoxicity to 4-hydroperoxycyclophosphamide (4-HC) in vitro.”
“These results suggest a post-translational mechanism through which retinoids decrease both ALDH expression, which results in increased cytotoxicity of 4-HC and acetaldehyde, although other previously described effects of these retinoids may contribute to the slight increase in cytotoxicity seen with other chemotherapy agents.”