Evaluation of the potential of cobalamin derivatives bearing ru(ii) polypyridyl complexes as photosensitizers for photodynamic therapy
Jakubaszek, MartaChimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, Paris, France - Institut Curie, PSL University, CNRS UMR 144, Paris, France
Rossier, JeremieChemistry Department, University of Fribourg, Switzerland
Karges, JohannesChimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, Paris, France
Delasoie, JoachimChemistry Department, University of Fribourg, Switzerland
Goud, BrunoInstitut Curie, PSL University, CNRS UMR 144, Paris, France
Gasser, GillesChimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, Paris, France
Zobi, FabioChemistry Department, University of Fribourg, Switzerland
English
The current photosensitizers (PSs) for photodynamic therapy (PDT) lack selectivity for cancer cells. To tackle this drawback, in view of selective cancer delivery, we envisioned conjugating two ruthenium polypyridyl complexes to vitamin B12 (Cobalamin, Cbl) to take advantage of the solubility and active uptake of the latter. Ultimately, our results showed that the transcobalamin pathway is unlikely involved for the delivery of these ruthenium‐based PDT PSs, emphasizing the difficulty in successfully delivering metal complexes to cancer cells.