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An oxovanadium(IV) vitamin-B6 Schiff base complex, viz. [VO(HL)(acdppz)]Cl, having (acridinyl)dipyridophenazine (acdppz) shows specific localization to endoplasmic reticulum (ER) and remarkable apoptotic photocytotoxicity in visible light (400-700 nm) in HeLa and MCF-7 cancer cells (IC50 < 0.6 μM) while being non-toxic in the dark and to MCF-10A normal cells (IC50 > 40 μM).
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Banerjee et al. (2014) studied this question.
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