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Cui X, Yuan H, Chen X, Meng Q, Zhang C. Newly Designed Quasi-intrinsic Photosensitizers for Fluorescence Image-Guided Two-Photon Photodynamic Therapy with Type I/II Photoreactions. J Med Chem 2024; 67:8902-8912. [PMID: 38815214 DOI: 10.1021/acs.jmedchem.4c00191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
In this work, a set of quasi-intrinsic photosensitizers are theoretically proposed based on the 2-amino-8-(1'-β-d-2'-deoxyribofuranosyl)-imidazo[1,2-α]-1,3,5-triazin-4(8H)-one (P), which could pair with the 6-amino-5-nitro-3-(1'-β-d-2'-deoxyribofuranosyl)-2(1H)-pyridone (Z) and keep the essential structural characters of nucleic acid. It is revealed that the ring expansion and electron-donating/electron-withdrawing substitution bring enhanced two-photon absorption and bright photoluminescence of these monomers, thereby facilitating the selective excitation and tumor localization through fluorescence imaging. However, instead of undergoing radiative transition (S1 → S0), the base pairing induced fluorescence quenching and rapid intersystem crossing (S1 → Tn) are observed and characterized by the reduced singlet-triplet energy gaps and large spin-orbit coupling values. To ensure the phototherapeutic properties of the considered base pairs in long-lived T1 state, we examined the vertical electron affinity as well as vertical ionization potential for production of superoxide anions via Type I photoreaction, and their required T1 energy (0.98 eV) to generate singlet oxygen 1O2 via Type II mechanism.
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Affiliation(s)
- Xixi Cui
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, P. R. China
| | - Hongxiu Yuan
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, P. R. China
| | - Xiaolin Chen
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, P. R. China
| | - Qingtian Meng
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, P. R. China
| | - Changzhe Zhang
- School of Physics and Electronics, Shandong Normal University, Jinan 250358, P. R. China
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Zhang H, Ren G, Hou W, Wang L, Sun Y, Liu J. A Silicon-Rhodamine-Based Heavy-Atom-Free Photosensitizer for Mitochondria-targeted Photodynamic Therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123688. [PMID: 38042121 DOI: 10.1016/j.saa.2023.123688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/17/2023] [Accepted: 11/26/2023] [Indexed: 12/04/2023]
Abstract
Silicon-xanthene derivatives (SiXs) have gained popularity in the field of bioimaging due to their advantageous far-red to near-infrared (NIR) absorption and emission wavelengths, notable brightness (ε × Φ), inherent mitochondrial targeting properties and high photo-stability, making them an excellent candidate for photodynamic therapy (PDT). Nevertheless, the utilization of SiXs as photosensitizers (PSs) for PDT in cancer treatment remains largely unexplored, primarily due to their limited capacity to generate cytotoxic reactive oxygen species (ROS). However, the potential of SiXs in PDT warrants further investigation. In this study, utilizing the spin-orbit charge transfer-induced intersystem crossing (SOCT-ISC) mechanism, we reported one novel heavy-atom-free, mitochondria-targeted, silicon-rhodamine-based photosensitizer (SiR-PXZ), which demonstrated excellent biocompatibility, minimal dark toxicity, favorable water-solubility and stability, and considerable singlet oxygen quantum yield under 660 nm light irradiation (ΦΔ = 0.16 in air-saturated PBS). Moreover, SiR-PXZ could be rapidly taken up by the mitochondria and efficiently induced apoptosis of cancer cells with an IC50 value of 1.2 μM. The in vivo studies showed that SiR-PXZ exhibited excellent anti-tumor effects, making it potentially valuable for clinical application. This study offers a source of ideas for the construction of SiXs-based photosensitizers for photodynamic cancer treatment in the future.
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Affiliation(s)
- Hongxing Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Guoxi Ren
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Wenhua Hou
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Lijuan Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Yuanqiang Sun
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Jing Liu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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Lu X, Xiong C, Li B, Du W, Li D, Ma W, Tian X, Tian Y, Zhang Q. Three-photon absorption iridium( iii) photosensitizers featuring aggregation induced emission. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00081d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Ir-H exhibits better three-photon absorption aggregation induced emission property, and thus can enhance the photodynamic therapy efficiency.
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Affiliation(s)
- Xin Lu
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R., China
| | - Chaoya Xiong
- School of Life Science, Anhui University, Hefei 230601, P. R. China
| | - Bo Li
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Wenli Du
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R., China
| | - Dandan Li
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Wen Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R., China
| | - Xiaohe Tian
- Huaxi MR Research Centre (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610000, China
| | - Yupeng Tian
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R., China
- State Key Laboratory of Coordination Chemistry, Nanjing University, P. R. China
| | - Qiong Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R., China
- State Key Laboratory of Coordination Chemistry, Nanjing University, P. R. China
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Ayoubi‐Chianeh M, Jafarpour F. Theoretical study of new promising conjugated psoralens in psoralen ultraviolet A therapy. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Farnaz Jafarpour
- School of Chemistry, College of Science University of Tehran Tehran Iran
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