Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy

As two main phototherapy means, photodynamic therapy (PDT) and photothermal therapy (PTT) have different photon‐transition avenues decided by the aggregation state of photosensitizers (PSs), and thus PDT or PTT efficiency can be regulated by regulating PSs aggregation. A co‐assembly formulation cons...

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Main Authors: Hai Wang, Feixiang Hu, Wuyang Wei, Wencheng Wu, Qiaoling Yang, Wen Qin, Chao Fang, Xiulin Dong, Yang Zhou, Kun Zhang
Format: Article
Language:English
Published: Wiley-VCH 2025-07-01
Series:Small Structures
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Online Access:https://doi.org/10.1002/sstr.202400574
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author Hai Wang
Feixiang Hu
Wuyang Wei
Wencheng Wu
Qiaoling Yang
Wen Qin
Chao Fang
Xiulin Dong
Yang Zhou
Kun Zhang
author_facet Hai Wang
Feixiang Hu
Wuyang Wei
Wencheng Wu
Qiaoling Yang
Wen Qin
Chao Fang
Xiulin Dong
Yang Zhou
Kun Zhang
author_sort Hai Wang
collection DOAJ
description As two main phototherapy means, photodynamic therapy (PDT) and photothermal therapy (PTT) have different photon‐transition avenues decided by the aggregation state of photosensitizers (PSs), and thus PDT or PTT efficiency can be regulated by regulating PSs aggregation. A co‐assembly formulation consisting of IR780 iodide PSs and pentafluorophenyl trifluoroacetate is constructed through intermolecular interactions, followed by coating with hyaluronic acid. Initially, the uniform distribution of IR780 PSs favors more reactive oxygen species birth to implement PDT when entering cells since its photon‐transition avenue through the sequential process intersystem crossing transfer–collision energy transfer is predominant. After hyaluronidase and laser irradiation‐induced structural collapse of co‐assembly, free IR780 aggregates due to hydrophobic interactions even though they are excreted out of cells, and then, these IR780 aggregates produce heat through the nonradiative relaxation process to execute PTT. Such a spatiotemporal sequential PDT–PTT phototherapy encourages antitumor immune responses and mitigates immunosuppression, thus accomplishing the spatiotemporal sequential photoimmunotherapy against breast cancer progression. Through such tumor microenvironment‐adaptable and laser‐duration‐decided aggregation state alteration, photon‐transition switching is regulated and more insights are provided into single PSs‐mediated sequential PDT–PTT and photoimmunotherapy.
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issn 2688-4062
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series Small Structures
spelling doaj-art-1ece8f82c2f34d07a649e6e7850101322025-08-20T02:43:02ZengWiley-VCHSmall Structures2688-40622025-07-0167n/an/a10.1002/sstr.202400574Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential PhotoimmunotherapyHai Wang0Feixiang Hu1Wuyang Wei2Wencheng Wu3Qiaoling Yang4Wen Qin5Chao Fang6Xiulin Dong7Yang Zhou8Kun Zhang9Department of Ultrasound The Third People's Hospital of Chendu (Affiliated Hospital of Southwest Jiaotong University) College of Medicine Southwest Jiaotong University No. 19, Yangshi Street Chengdu Sichuan 610031 ChinaDepartment of Radiology Fudan University Shanghai Cancer Center No. 270 Dong'an Road, Xuhui District Shanghai 200032 ChinaDepartment of Ultrasound The Third People's Hospital of Chendu (Affiliated Hospital of Southwest Jiaotong University) College of Medicine Southwest Jiaotong University No. 19, Yangshi Street Chengdu Sichuan 610031 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaDepartment of Ultrasound The Third People's Hospital of Chendu (Affiliated Hospital of Southwest Jiaotong University) College of Medicine Southwest Jiaotong University No. 19, Yangshi Street Chengdu Sichuan 610031 ChinaCentral Laboratory and Department of Medical Ultrasound Sichuan Academy of Medical Sciences Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China No. 32, West Second Section, First Ring Road Chengdu Sichuan 610072 ChinaAs two main phototherapy means, photodynamic therapy (PDT) and photothermal therapy (PTT) have different photon‐transition avenues decided by the aggregation state of photosensitizers (PSs), and thus PDT or PTT efficiency can be regulated by regulating PSs aggregation. A co‐assembly formulation consisting of IR780 iodide PSs and pentafluorophenyl trifluoroacetate is constructed through intermolecular interactions, followed by coating with hyaluronic acid. Initially, the uniform distribution of IR780 PSs favors more reactive oxygen species birth to implement PDT when entering cells since its photon‐transition avenue through the sequential process intersystem crossing transfer–collision energy transfer is predominant. After hyaluronidase and laser irradiation‐induced structural collapse of co‐assembly, free IR780 aggregates due to hydrophobic interactions even though they are excreted out of cells, and then, these IR780 aggregates produce heat through the nonradiative relaxation process to execute PTT. Such a spatiotemporal sequential PDT–PTT phototherapy encourages antitumor immune responses and mitigates immunosuppression, thus accomplishing the spatiotemporal sequential photoimmunotherapy against breast cancer progression. Through such tumor microenvironment‐adaptable and laser‐duration‐decided aggregation state alteration, photon‐transition switching is regulated and more insights are provided into single PSs‐mediated sequential PDT–PTT and photoimmunotherapy.https://doi.org/10.1002/sstr.202400574aggregation state regulationsphoton‐transition pathway switchingssingle photosensitizersspatiotemporal sequential phototherapies and photoimmunotherapiestumor microenvironment adaptations
spellingShingle Hai Wang
Feixiang Hu
Wuyang Wei
Wencheng Wu
Qiaoling Yang
Wen Qin
Chao Fang
Xiulin Dong
Yang Zhou
Kun Zhang
Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
Small Structures
aggregation state regulations
photon‐transition pathway switchings
single photosensitizers
spatiotemporal sequential phototherapies and photoimmunotherapies
tumor microenvironment adaptations
title Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
title_full Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
title_fullStr Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
title_full_unstemmed Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
title_short Photoirradiation‐ and Extracellular‐Matrix‐Encouraged Photon‐Transition Switching Regulates Spatiotemporal Sequential Photoimmunotherapy
title_sort photoirradiation and extracellular matrix encouraged photon transition switching regulates spatiotemporal sequential photoimmunotherapy
topic aggregation state regulations
photon‐transition pathway switchings
single photosensitizers
spatiotemporal sequential phototherapies and photoimmunotherapies
tumor microenvironment adaptations
url https://doi.org/10.1002/sstr.202400574
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