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Tojo T, Niiuchi A, Kondo T, Yuasa M. Evaluation of the Correlation between Porphyrin Accumulation in Cancer Cells and Functional Porphyrin Positions of the Phenyl Group. ChemMedChem 2021; 17:e202100636. [PMID: 34859953 DOI: 10.1002/cmdc.202100636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/01/2021] [Indexed: 01/26/2023]
Abstract
Porphyrin selectively shows tumour accumulation and has attracted attention as a carrier molecule for drug delivery systems (DDS). Porphyrin has two functional sites termed the meso- and β-positions. In previous work, meso-porphyrin derivatives with an alkyl group were found to exhibit greater accumulation in human breast cancer cells (MCF-7). To identify the correlation between porphyrin accumulation and functional porphyrin positions of other functional groups, the accumulation of porphyrin derivatives with a phenyl group was investigated. The β-porphyrin derivative with a phenyl group showed higher accumulation in MCF-7 cells and greater affinity for albumin than the meso-porphyrin derivative. The results of density functional theory (DFT) calculations suggest that the β-porphyrin derivative with a phenyl group had higher planarity across the total structure than the meso-porphyrin derivative. It was concluded that the greater planarity of the β-porphyrin derivative with a phenyl group might lead to superior MCF-7 cell accumulation.
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Affiliation(s)
- Toshifumi Tojo
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan
| | - Ayano Niiuchi
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan
| | - Takeshi Kondo
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan.,Research Institute for Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan
| | - Makoto Yuasa
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan.,Research Institute for Science and Technology, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, 278-8510, Japan
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Evaluation of the correlation between porphyrin accumulation in cancer cells and functional positions for application as a drug carrier. Sci Rep 2021; 11:2046. [PMID: 33479459 PMCID: PMC7820339 DOI: 10.1038/s41598-021-81725-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/11/2021] [Indexed: 01/29/2023] Open
Abstract
Porphyrin derivatives accumulate selectively in cancer cells and are can be used as carriers of drugs. Until now, the substituents that bind to porphyrins (mainly at the meso-position) have been actively investigated, but the effect of the functional porphyrin positions (β-, meso-position) on tumor accumulation has not been investigated. Therefore, we investigated the correlation between the functional position of substituents and the accumulation of porphyrins in cancer cells using cancer cells. We found that the meso-derivative showed higher accumulation in cancer cells than the β-derivative, and porphyrins with less bulky substituent actively accumulate in cancer cells. When evaluating the intracellular distribution of porphyrin, we found that porphyrin was internalized by endocytosis and direct membrane permeation. As factors involved in these two permeation mechanisms, we evaluated the affinity between porphyrin-protein (endocytosis) and the permeability to the phospholipid bilayer membrane (direct membrane permeation). We found that the binding position of porphyrin affects the factors involved in the transmembrane permeation mechanisms and impacts the accumulation in cancer cells.
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Tojo T, Nishida K, Kondo T, Yuasa M. Correlations between functional porphyrin positions and accumulation in cancer cells. Bioorg Med Chem Lett 2020; 30:127437. [PMID: 32721451 DOI: 10.1016/j.bmcl.2020.127437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 12/23/2022]
Abstract
Porphyrin is accumulated in tumours due to its interaction with protein. Cancer therapy with porphyrin as a carrier molecule is attracting attention. Porphyrin displays two functional sites termed β- and meso-positions. A correlation between the functional position on the porphyrin molecule and the ability to accumulate in cancer cells is observed in the present study. The accumulation of porphyrin derivatives was determined by measuring fluorescence intensity after incubation for 2 and 24 h. The accumulation of cancer cells depended on the position and length of functional groups. Estimated binding constants between porphyrin and bovine serum albumin suggest that the position of functional groups leads to changes in binding affinity and influences the accumulation of porphyrin derivatives in cancer cells.
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Affiliation(s)
- Toshifumi Tojo
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Koshi Nishida
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takeshi Kondo
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan; Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Makoto Yuasa
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan; Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
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