1
|
Horiuchi H, Nishikawa K, Ishii N, Kano K, Shinada S, Osawa N, Horikoshi A, Yoshihara T, Sugawara F, Sakaguchi K, Okustu T, Katsura S, Matsuo I, Oshige M. A silyl porphyrin derivative conjugated with 6-deoxy-6-sulfo-α-d-glucopyranose functions as an efficient photosensitizer for photodynamic therapy. Photodiagnosis Photodyn Ther 2024; 45:103898. [PMID: 38008301 DOI: 10.1016/j.pdpdt.2023.103898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/28/2023]
Abstract
We synthesized a new silyl porphyrin derivative conjugated with 6-deoxy-6-sulfo-α-d-glucopyranose (SGlc). Conjugation with SGlc improved A549 cellular uptake without significant changes in the photophysical and photochemical properties and subcellular localization. This improved cellular uptake led to enhanced photodynamic activity. Furthermore, conjugation with SGlc suppressed dark toxicity. These advantages were not observed for a conjugate with a glucose molecule. These results indicated that the conjugation with SGlc is a promising strategy for enhancing photodynamic efficacy.
Collapse
Affiliation(s)
- Hiroaki Horiuchi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan.
| | - Kota Nishikawa
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Nozomi Ishii
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Koki Kano
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Shunsuke Shinada
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Nene Osawa
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Aoi Horikoshi
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Toshitada Yoshihara
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Fumio Sugawara
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Kengo Sakaguchi
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Tetsuo Okustu
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Shinji Katsura
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan
| | - Ichiro Matsuo
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Masahiko Oshige
- Department of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Center for Food Science and Wellness (GUCFW), Maebashi, Gunma 371-8510, Japan.
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
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.
Collapse
|
4
|
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.
Collapse
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.
| |
Collapse
|
5
|
Horiuchi H, Isogai M, Hirakawa K, Okutsu T. Improvement of the ON/OFF Switching Performance of a pH-Activatable Porphyrin Derivative by the Introduction of Phosphorus(V). CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201800248] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hiroaki Horiuchi
- Division of Molecular Science Graduate School of Science and Technology; Gunma University; Kiryu 376-8515 Japan
| | - Masataka Isogai
- Division of Molecular Science Graduate School of Science and Technology; Gunma University; Kiryu 376-8515 Japan
| | - Kazutaka Hirakawa
- Applied Chemistry and Biochemical Engineering Course Department of Engineering Graduate School of Integrated Science and Technology; Shizuoka University; Hamamatsu 432-8561 Japan
- Department of Optoelectronics and Nanostructure Science Graduate School of Science and Technology; Shizuoka University; Hamamatsu 432-8561 Japan
| | - Tetsuo Okutsu
- Division of Molecular Science Graduate School of Science and Technology; Gunma University; Kiryu 376-8515 Japan
| |
Collapse
|
6
|
Importance of the orthogonal structure between porphyrin and aniline moieties on the pH-activatable porphyrin derivative for photodynamic therapy. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.07.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
7
|
Studies on the Synthesis, Photophysical and Biological Evaluation of Some Unsymmetrical Meso-Tetrasubstituted Phenyl Porphyrins. Molecules 2017; 22:molecules22111815. [PMID: 29068406 PMCID: PMC6150282 DOI: 10.3390/molecules22111815] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 12/27/2022] Open
Abstract
We designed three unsymmetrical meso-tetrasubstituted phenyl porphyrins for further development as theranostic agents for cancer photodynamic therapy (PDT): 5-(4-hydroxy-3-methoxyphenyl)-10,15,20-tris-(4-acetoxy-3-methoxyphenyl)porphyrin (P2.2), Zn(II)-5-(4-hydroxy-3-methoxyphenyl)-10,15,20-tris-(4-acetoxy-3-methoxyphenyl)porphyrin (Zn(II)2.2) and Cu(II)-5-(4-hydroxy-3-methoxyphenyl)-10,15,20-tris-(4-acetoxy-3-methoxyphenyl)porphyrin (Cu(II)2.2). The porphyrinic compounds were synthesized and their structures were confirmed by elemental analysis, FT-IR, UV-Vis, EPR and NMR. The compounds had a good solubility in polar/nonpolar media. P2.2 and, to a lesser extent, Zn(II)2.2 were fluorescent, albeit with low fluoresence quantum yields. P2.2 and Zn(II)2.2 exhibited PDT-acceptable values of singlet oxygen generation. A “dark” cytotoxicity study was performed using cells that are relevant for the tumor niche (HT-29 colon carcinoma cells and L929 fibroblasts) and for blood (peripheral mononuclear cells). Cellular uptake of fluorescent compounds, cell viability/proliferation and death were evaluated. P2.2 was highlighted as a promising theranostic agent for PDT in solid tumors considering that P2.2 generated PDT-acceptable singlet oxygen yields, accumulated into tumor cells and less in blood cells, exhibited good fluorescence within cells for imagistic detection, and had no significant cytotoxicity in vitro against tumor and normal cells. Complexing of P2.2 with Zn(II) or Cu(II) altered several of its PDT-relevant properties. These are consistent arguments for further developing P2.2 in animal models of solid tumors for in vivo PDT.
Collapse
|
8
|
Horiuchi H, Sakai A, Akiyama S, Ikeda R, Ito S, Furuya M, Gomibuchi Y, Ichikawa M, Yoshihara T, Tobita S, Okutsu T. Extension of π-system of silylated porphyrin derivative for photodynamic therapy. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
9
|
Horiuchi H, Kuribara R, Hirabara A, Okutsu T. pH-Response Optimization of Amino-Substituted Tetraphenylporphyrin Derivatives as pH-Activatable Photosensitizers. J Phys Chem A 2016; 120:5554-61. [PMID: 27340737 DOI: 10.1021/acs.jpca.6b05019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Amino-substituted tetraphenylporphyrin derivatives have been designed as pH-activatable photosensitizers for photodynamic cancer therapy. The photophysical processes of the monoamino-substituted derivative N1 and nonsubstituted derivative N0 have been studied. The quantum yields of the fluorescence and photosensitization of singlet oxygen by N1 were very low in the neutral condition (OFF state), but these quantum yields were recovered by adding acid (ON state). These changes were not observed for N0; therefore, N1 is expected to be applicable as a pH-activatable photosensitizer. The ON/OFF switching mechanism of N1 has also been clarified. To optimize the pH response, tri- and tetraamino-substituted derivatives (N3 and N4) have also been explored. The pH response intensified as the number of amino groups increased. Furthermore, the ON/OFF switching ratio of N3 was 100, which is quite high.
Collapse
Affiliation(s)
- Hiroaki Horiuchi
- Division of Molecular Science, Graduate School of Science and Technology, and ‡International Education and Research Center for Silicon Science, Graduate School of Science and Technology, Gunma University , Kiryu, Gunma 376-8515, Japan
| | - Ryota Kuribara
- Division of Molecular Science, Graduate School of Science and Technology, and ‡International Education and Research Center for Silicon Science, Graduate School of Science and Technology, Gunma University , Kiryu, Gunma 376-8515, Japan
| | - Atsuki Hirabara
- Division of Molecular Science, Graduate School of Science and Technology, and ‡International Education and Research Center for Silicon Science, Graduate School of Science and Technology, Gunma University , Kiryu, Gunma 376-8515, Japan
| | - Tetsuo Okutsu
- Division of Molecular Science, Graduate School of Science and Technology, and ‡International Education and Research Center for Silicon Science, Graduate School of Science and Technology, Gunma University , Kiryu, Gunma 376-8515, Japan
| |
Collapse
|
10
|
|
11
|
Horiuchi H, Terashima K, Sakai A, Suda D, Yoshihara T, Kobayashi A, Tobita S, Okutsu T. The effect of central metal on the photodynamic properties of silylated tetraphenylporphyrin derivative. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
12
|
Ooyama Y, Enoki T, Ohshita J. Development of a D–π–A pyrazinium photosensitizer possessing singlet oxygen generation. RSC Adv 2016. [DOI: 10.1039/c5ra26647e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
(D–π–)2A pyrazinium dyes (OEJ-1 and OEJ-2) bearing a counter anion (X− = Br− or I−) have been newly developed as a photosensitizer possessing singlet oxygen (1O2) generation.
Collapse
Affiliation(s)
- Yousuke Ooyama
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Toshiaki Enoki
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Joji Ohshita
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| |
Collapse
|
13
|
WITHDRAWN: Polymer assembly: Promising carriers as co-delivery systems for cancer therapy. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
14
|
Cabrer A, Ribó JM, El-Hachemi Z, Crusats J. 5,10,15,20-Tetrasulfonatophenylporphyrin regioisomers: How the location of the sulfonato groups determines the formation of their supramolecular aggregates. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424615500625] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
An improved method to obtain and purify the tetrasodium salts of 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPP-pS4) and 5,10,15,20-tetrakis(3-sulfonatophenyl)porphyrin (TPP-mS4) is reported. With these substances as standards, the analysis of a typical reaction crude obtained in the sulfonation of tetraphenylporphyrin with hot sulfuric acid shows that the para/meta selectivity of sulfonation at each individual phenyl ring is 95:5. The pKa values of both TPP-pS4 and TPP-mS4 were spectrophotometrically measured (4.73 ± 0.01 and 4.85 ± 0.01 respectively). These results show that the sulfonato group has a stronger mesomeric electronic effect than the inductive one. The all-meta isomer of meso-tetrasulfonatophenylporphyrin in acidic aqueous solutions (10-3–10-4M) shows a total absence of aggregation under the same experimental conditions in which its all-para counterpart is fully aggregated, as inferred from the typical Soret J- and H-aggregation bands characteristic of the supramolecular homoassociates. The effect of the number of meta-sulfonato groups on the structure of the aggregates at different length-scales is discussed.
Collapse
Affiliation(s)
- Aina Cabrer
- Departament de Química Orgànica Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
| | - Josep M. Ribó
- Departament de Química Orgànica Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
- Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
| | - Zoubir El-Hachemi
- Departament de Química Orgànica Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
- Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
| | - Joaquim Crusats
- Departament de Química Orgànica Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
- Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Catalonia, Spain
| |
Collapse
|
15
|
Kyushin S, Saito Y, Yoshimura K, Horiuchi H, Hiratsuka H. Synthesis and Properties of 5,10,15,20-Tetrakis(4′-trimethylsilylphenyl)chlorin. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Soichiro Kyushin
- Division of Molecular Science; Graduate School of Science and Technology; Gunma University; Kiryu Gunma 376-8515 Japan
| | - Yuta Saito
- Division of Molecular Science; Graduate School of Science and Technology; Gunma University; Kiryu Gunma 376-8515 Japan
| | - Kimio Yoshimura
- Division of Molecular Science; Graduate School of Science and Technology; Gunma University; Kiryu Gunma 376-8515 Japan
| | - Hiroaki Horiuchi
- Division of Molecular Science; Graduate School of Science and Technology; Gunma University; Kiryu Gunma 376-8515 Japan
| | - Hiroshi Hiratsuka
- Division of Molecular Science; Graduate School of Science and Technology; Gunma University; Kiryu Gunma 376-8515 Japan
| |
Collapse
|
16
|
Horiuchi H, Kano T, Uehara H, Okutsu T. Sono-activatable Photosensitizer for Photodynamic Therapy. CHEM LETT 2014. [DOI: 10.1246/cl.140403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Hiroaki Horiuchi
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
- International Education and Research Center for Silicon Science, Faculty of Science and Technology, Gunma University
| | - Takayuki Kano
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| | - Hiroki Uehara
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| | - Tetsuo Okutsu
- Division of Molecular Science, Faculty of Science and Technology, Gunma University
| |
Collapse
|
17
|
Horiuchi H, Hosaka M, Mashio H, Terata M, Ishida S, Kyushin S, Okutsu T, Takeuchi T, Hiratsuka H. Silylation improves the photodynamic activity of tetraphenylporphyrin derivatives in vitro and in vivo. Chemistry 2014; 20:6054-60. [PMID: 24710805 DOI: 10.1002/chem.201303120] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 01/29/2014] [Indexed: 11/06/2022]
Abstract
The effects of silyl and hydrophilic groups on the photodynamic properties of tetraphenylporphyrin (TPP) derivatives have been studied in vitro and in vivo. Silylation led to an improvement in the quantum yield of singlet oxygen sensitization for both sulfo and carboxy derivatives, although the silylation did not affect other photophysical properties. Silylation also improved the cellular uptake efficiency for both sulfo and carboxy derivatives, enhancing the in vitro photodynamic activity of the photosensitizer in U251 human glioma cells. The carboxy derivative (SiTPPC4 ) was found to show higher cellular uptake efficiency and in vitro photodynamic activity than the corresponding sulfo derivative (SiTPPS4 ), which indicates that the carboxy group is a more promising hydrophilic group than the sulfo group in the silylated porphyrin. SiTPPC4 was found to show high selective accumulation efficiency in tumors, although almost no tumor selectivity was observed for the nonsilylated porphyrin. The concentration of SiTPPC4 in tumors was 13 times higher than that in muscle 12 h after drug administration. We also studied tumor response after treatment and found that silylation enhanced in vivo photodynamic activity significantly. SiTPPC4 shows higher photodynamic activity than NPe6 with white light irradiation.
Collapse
Affiliation(s)
- Hiroaki Horiuchi
- Division of Molecular Science and International Education and Research Center for Silicon Science, Faculty of Science and Technology, Gunma University, Kiryu (Japan), Fax: (+81) 277-30-1244.
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Gonçalves PJ, Corrêa DS, Franzen PL, De Boni L, Almeida LM, Mendonça CR, Borissevitch IE, Zílio SC. Effect of interaction with micelles on the excited-state optical properties of zinc porphyrins and J-aggregates formation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 112:309-317. [PMID: 23685798 DOI: 10.1016/j.saa.2013.04.065] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Revised: 03/27/2013] [Accepted: 04/14/2013] [Indexed: 06/02/2023]
Abstract
This work reports on the photophysical properties of zinc porphyrins meso-tetrakis methylpyridiniumyl (Zn(2+)TMPyP) and meso-tetrakis sulfonatophenyl (Zn(2+)TPPS) in homogeneous aqueous solutions and in the presence of sodium dodecyl sulfate (SDS) and cetyltrimethyl ammonium bromide (CTAB) micelles. The excited-state dynamic was investigated with the Z-scan technique, UV-Vis absorption, and fluorescence spectroscopy. Photophysical parameters were obtained by analyzing the experimental data with a conventional five-energy-level diagram. The interaction of the charged side porphyrin groups with oppositely charged surfactants can reduce the electrostatic repulsion between porphyrin molecules leading to aggregation, which affected the porphyrin characteristics such as absorption cross-sections, lifetimes and quantum yields. The interaction between anionic ZnTPPS with cationic CTAB micelles induced the formation of porphyrin J-aggregates, while this effect was not observed in the interaction of ZnTMPyP with SDS micelles. This difference is, probably, due to the difference in electrostatic repulsion between the porphyrin molecules. The insights obtained by these results are important for the understanding of the photophysical behavior of porphyrins, regarding potential applications in pharmacokinetics as encapsulation of photosensitizer for drug delivery systems and in its interaction with cellular membrane.
Collapse
Affiliation(s)
- P J Gonçalves
- Instituto de Física, Universidade Federal de Goiás, Caixa Postal 131, 74001-970 Goiânia, GO, Brazil.
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Otsuka K, Ishida S, Kyushin S. A Light-emitting Liquid Crystal Containing p-Terphenyl and an Alkylsilyl Group. CHEM LETT 2012. [DOI: 10.1246/cl.2012.307] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kyohei Otsuka
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Shintaro Ishida
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Soichiro Kyushin
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| |
Collapse
|