1
|
Mula S, Koli M. Helical BODIPY Dyes as Heavy-Atom-Free Triplet Photosensitizers for Photodynamic Therapy of Cancer. ChemMedChem 2024; 19:e202400041. [PMID: 38359274 DOI: 10.1002/cmdc.202400041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/14/2024] [Accepted: 02/14/2024] [Indexed: 02/17/2024]
Abstract
Despite of having many advantages over the popular cancer therapies, photodynamic therapy still is not widely acceptable for clinical applications. Scarcity of efficient triplet photosensitizers (PSs) is one of the main bottlenecks for this. Although numerous heavy atom attached PSs are developed as PDT agents, but these are not suitable for clinical applications due to several reasons. Thus, development of heavy-atom-free organic PSs is urgently required. In this context, development of new type of helical BODIPYs as PSs for PDT is discussed. BODIPYs have rich photophysical properties and structural helicity further enhances their triplet conversion rates. This new concept of structural helicity to enhance the triplet conversion of BODIPYs is discussed with reported helical BODIPYs. Helical geometries of these dyes are checked by X-ray crystallography studies and their high triplet conversions as compared to planar BODIPYs are also confirmed. Importantly, these dyes have high triplet lifetimes and are capable of generating high singlet oxygens even in hypoxia condition as compared to conventional heavy atom attached BODIPYs. All these make the helical BODIPYs excellent candidates as PDT agents. Finally, their successful applications as PDT agents in killing of various types of cancer cells are also discussed. The results are encouraging which indicate that helical BODIPYs could be next generation heavy-atom-free PSs for PDT applications.
Collapse
Affiliation(s)
- Soumyaditya Mula
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Mrunesh Koli
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| |
Collapse
|
2
|
Fu X, Man Y, Yu C, Sun Y, Hao E, Wu Q, Hu A, Li G, Wang CC, Li J. Unsymmetrical Benzothieno-Fused BODIPYs as Efficient NIR Heavy-Atom-Free Photosensitizers. J Org Chem 2024; 89:4826-4839. [PMID: 38471124 DOI: 10.1021/acs.joc.4c00034] [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: 03/14/2024]
Abstract
Heavy-atom-free photosensitizers are potentially suitable for use in photodynamic therapy (PDT). In this contribution, a new family of unsymmetrical benzothieno-fused BODIPYs with reactive oxygen efficiency up to 50% in air-saturated toluene was reported. Their efficient intersystem crossing (ISC) resulted in the generation of both 1O2 and O2-• under irradiation. More importantly, the PDT efficacy of a respective 4-methoxystyryl-modified benzothieno-fused BODIPY in living cells exhibited an extremely high phototoxicity with an ultralow IC50 value of 2.78 nM. The results revealed that the incorporation of an electron-donating group at the α-position of the unsymmetrical benzothieno-fused BODIPY platform might be an effective approach for developing long-wavelength absorbing heavy-atom-free photosensitizers for precision cancer therapy.
Collapse
Affiliation(s)
- Xiaofan Fu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yingxiu Man
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Changjiang Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Yingzhu Sun
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qinghua Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Anzhi Hu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Guangyao Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Chang-Cheng Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| |
Collapse
|
3
|
Wen B, Li C, Kang B, Zheng T, Wang Y, Jiang Y, Xu L, Oh J, Osuka A, Kim D, Song J. Cyclic Azobenzene-BODIPY Hybrids. Chemistry 2024; 30:e202303193. [PMID: 37943119 DOI: 10.1002/chem.202303193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/28/2023] [Accepted: 11/09/2023] [Indexed: 11/10/2023]
Abstract
Cyclic azobenzene-BODIPY hybrids were synthesized via cyclization by 1) acid-catalysed condensation of azobenzene-bridged dipyrroles with 3,5-di-tert-butylbenzaldehyde, 2) oxidation with DDQ, and 3) metalation with BF3 ⋅ Et2 O. The structures of many cyclic hybrids have been confirmed by single crystal X-ray analysis. The absorption spectra of the hybrids reveal the effective cyclic conjugation. The ultrafast measurements reveal that the photoexcited decays of these cyclic hybrids depend upon the ring size and connectivity.
Collapse
Affiliation(s)
- Bin Wen
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Chao Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Byeongjoo Kang
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Tao Zheng
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Yi Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Yibei Jiang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Ling Xu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Juwon Oh
- Department of Chemistry, Soonchunhyang University, Asan, 31538, Korea (Korea
| | - Atsuhiro Osuka
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Jianxin Song
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology, Traditional Chinese Medicine Research (Ministry of Education of China), Key Laboratory of the Assembly and Application of Organic Functional molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China
| |
Collapse
|