Journal
MOLECULES
Volume 27, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/molecules27144658
Keywords
curcumin; cobalt bis(dicarbollide); polyhedral boron compounds; cell viability; intracellular accumulation
Funding
- Ministry of Science and Higher Education of the Russian Federation [075-00697-22-00]
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Novel cobalt bis(dicarbollide)-curcumin conjugates were synthesized and found to be non-cytotoxic against tumor and normal cells. Flow cytometry analysis showed that these conjugates entered the cells in a time-dependent manner.
A series of novel cobalt bis(dicarbollide)-curcumin conjugates were synthesized. Two conjugates were obtained through the nucleophilic ring-opening reaction of the 1,4-dioxane and tetrahydropyran derivatives of cobalt bis(dicarbollide) with the OH group of curcumin, and using two equiv. of the oxonium derivatives, two other conjugates containing two cobalt bis(dicarbollide) units per molecule were obtained. In contrast to curcumin, the conjugates obtained were found to be non-cytotoxic against both tumor and normal cell lines. The analysis of the intracellular accumulation of the conjugates by flow cytometry showed that all cobalt bis(dicarbollide)-curcumin conjugates entered HCT116 colorectal carcinoma cells in a time-dependent manner. New non-cytotoxic conjugates contain a large amount of boron atoms in the biomolecule and can potentially be used for further biological research into boron neutron capture therapy (BNCT).
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