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Published in: Lasers in Medical Science 2/2019

01-03-2019 | Original Article

Comparative study of photodynamic activity of methylene blue in the presence of salicylic acid and curcumin phenolic compounds on human breast cancer

Authors: Khatereh Khorsandi, Elham Chamani, Ghader Hosseinzadeh, Reza Hosseinzadeh

Published in: Lasers in Medical Science | Issue 2/2019

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Abstract

Curcumin and salicylic acid are both phenolic compounds and they can both affect cancer treatment efficacy. In this study, the effects of methylene blue-curcumin (CU-MB) and methylene blue-salicylic acid (SA-MB) ion pair complexes on MDA-MB-231 human breast cancer cells are studied. According to the thermodynamic parameters, the stability of curcumin and salicylic acid complexes ion pair complexes was compared. The free energy of ion pair interactions was calculated based on binding constants. A comparison of the free energies of the complexes (CU-MB: ∆G°b1 = − 21.11 kJ/mol and ∆G°b2 = − 8.37 kJ/mol, SA-MB: ∆G°b1 = − 12.92 kJ/mol and ∆G°b2 = − 9.02 kJ/mol) indicates that the interaction of methylene blue in first binding interaction with curcumin is greater than that of methylene blue with salicylic acid. Electrostatic interactions are the main forces in the binding of both compounds to methylene blue. All forces are inter-molecular physical interactions. The results of cellular experiments show that ion pairing has enhanced the reduction of cell viability. By increasing molecular stability and prevention of dimerization of methylene blue, the cell killing potential of methylene blue increases and it subsequently causes enhancement of photodynamic efficacy.
Literature
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go back to reference Khorsandi K, Hosseinzadeh R, Fateh M (2015) Curcumin intercalated layered double hydroxide nanohybrid as a potential drug delivery system for effective photodynamic therapy in human breast cancer cells. RSC Adv 5. https://doi.org/10.1039/c5ra15888e Khorsandi K, Hosseinzadeh R, Fateh M (2015) Curcumin intercalated layered double hydroxide nanohybrid as a potential drug delivery system for effective photodynamic therapy in human breast cancer cells. RSC Adv 5. https://​doi.​org/​10.​1039/​c5ra15888e
Metadata
Title
Comparative study of photodynamic activity of methylene blue in the presence of salicylic acid and curcumin phenolic compounds on human breast cancer
Authors
Khatereh Khorsandi
Elham Chamani
Ghader Hosseinzadeh
Reza Hosseinzadeh
Publication date
01-03-2019
Publisher
Springer London
Published in
Lasers in Medical Science / Issue 2/2019
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-018-2571-0

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