Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy

Tumor oxygenation level has been regarded as an attractive target to elevate the efficiency of photodynamic therapy (PDT). Cyanobacterial photosynthesis-mediated reversal of tumor hypoxia could enable an oxygen-boosted PDT, but is limited by scant penetration depth and efficiency of external light....

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Autores principales: Meiqi Chang, Wei Feng, Li Ding, Hongguang Zhang, Caihong Dong, Yu Chen, Jianlin Shi
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Lenguaje:EN
Publicado: KeAi Communications Co., Ltd. 2022
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Acceso en línea:https://doaj.org/article/e2681b8f0b054f58bb5e5de0105f3225
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spelling oai:doaj.org-article:e2681b8f0b054f58bb5e5de0105f32252021-11-26T04:36:59ZPersistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy2452-199X10.1016/j.bioactmat.2021.08.030https://doaj.org/article/e2681b8f0b054f58bb5e5de0105f32252022-04-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2452199X21004060https://doaj.org/toc/2452-199XTumor oxygenation level has been regarded as an attractive target to elevate the efficiency of photodynamic therapy (PDT). Cyanobacterial photosynthesis-mediated reversal of tumor hypoxia could enable an oxygen-boosted PDT, but is limited by scant penetration depth and efficiency of external light. Herein, aiming at the dual purposes of reducing biological toxicity induced by long-term light irradiation and alleviating hypoxia, we here introduce a novel-designed CaAl2O4:Eu,Nd blue persistent luminescence material (PLM) as the in vivo light source after pre-excited in vitro. The ingenious construction of blue-emitting PLM with “optical battery” characteristics activates cyanobacterial cells and verteporfin simultaneously, which performs the successive oxygen supply and singlet oxygen generation without the long-term external excitation, resulting in the modulated tumor hypoxic microenvironment and enhanced photodynamic tumor proliferation inhibition efficiency. Both in vitro cellular assessment and in vivo tumor evaluation results affirm the advantages of self-produced oxygen PDT system and evidence the notable antineoplastic outcome. This work develops an irradiation-free photosynthetic bacteria-based PDT platform for the optimization of both oxygen production capacity and light utilization efficiency in cancer treatment, which is expected to promote the clinical progress of microbial-based photonic therapy.Meiqi ChangWei FengLi DingHongguang ZhangCaihong DongYu ChenJianlin ShiKeAi Communications Co., Ltd.articlePhotodynamic therapyCyanobacteriaPersistent luminescenceOxygenationIrradiation-freeMaterials of engineering and construction. Mechanics of materialsTA401-492Biology (General)QH301-705.5ENBioactive Materials, Vol 10, Iss , Pp 131-144 (2022)
institution DOAJ
collection DOAJ
language EN
topic Photodynamic therapy
Cyanobacteria
Persistent luminescence
Oxygenation
Irradiation-free
Materials of engineering and construction. Mechanics of materials
TA401-492
Biology (General)
QH301-705.5
spellingShingle Photodynamic therapy
Cyanobacteria
Persistent luminescence
Oxygenation
Irradiation-free
Materials of engineering and construction. Mechanics of materials
TA401-492
Biology (General)
QH301-705.5
Meiqi Chang
Wei Feng
Li Ding
Hongguang Zhang
Caihong Dong
Yu Chen
Jianlin Shi
Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
description Tumor oxygenation level has been regarded as an attractive target to elevate the efficiency of photodynamic therapy (PDT). Cyanobacterial photosynthesis-mediated reversal of tumor hypoxia could enable an oxygen-boosted PDT, but is limited by scant penetration depth and efficiency of external light. Herein, aiming at the dual purposes of reducing biological toxicity induced by long-term light irradiation and alleviating hypoxia, we here introduce a novel-designed CaAl2O4:Eu,Nd blue persistent luminescence material (PLM) as the in vivo light source after pre-excited in vitro. The ingenious construction of blue-emitting PLM with “optical battery” characteristics activates cyanobacterial cells and verteporfin simultaneously, which performs the successive oxygen supply and singlet oxygen generation without the long-term external excitation, resulting in the modulated tumor hypoxic microenvironment and enhanced photodynamic tumor proliferation inhibition efficiency. Both in vitro cellular assessment and in vivo tumor evaluation results affirm the advantages of self-produced oxygen PDT system and evidence the notable antineoplastic outcome. This work develops an irradiation-free photosynthetic bacteria-based PDT platform for the optimization of both oxygen production capacity and light utilization efficiency in cancer treatment, which is expected to promote the clinical progress of microbial-based photonic therapy.
format article
author Meiqi Chang
Wei Feng
Li Ding
Hongguang Zhang
Caihong Dong
Yu Chen
Jianlin Shi
author_facet Meiqi Chang
Wei Feng
Li Ding
Hongguang Zhang
Caihong Dong
Yu Chen
Jianlin Shi
author_sort Meiqi Chang
title Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
title_short Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
title_full Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
title_fullStr Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
title_full_unstemmed Persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
title_sort persistent luminescence phosphor as in-vivo light source for tumoral cyanobacterial photosynthetic oxygenation and photodynamic therapy
publisher KeAi Communications Co., Ltd.
publishDate 2022
url https://doaj.org/article/e2681b8f0b054f58bb5e5de0105f3225
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