A Self-Degradable Conjugated Polymer for Photodynamic Therapy with Reliable Postoperative Safety.

A Self-Degradable Conjugated Polymer for Photodynamic Therapy with Reliable Postoperative Safety.
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用于光动力治疗的自降解共轭聚合物具有可靠的术后安全性

DOI:
10.1002/advs.202104101
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发表时间:
2022-03
期刊:
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子:
--
通讯作者:
Wei Y
Wei Y
中科院分区:
其他
文献类型:
--
作者:
Huang H;Xie W;Wan Q;Mao L;Hu D;Sun H;Zhang X;Wei Y

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光动力学疗法(PDT)作为一种非侵入性的治疗技术,在肿瘤治疗中引起了广泛的研究兴趣。然而,光动力治疗后残留的光敏剂(PS)在阳光下仍会产生活性氧(ROS),损伤正常细胞,限制了其在临床上的实际应用。在此,作者提出了一种基于共轭聚合物的自降解I型PS,其由聚集诱导发射(AIE)和咪唑单元组成。由于有效的共轭骨架和独特的AIE性质,因此获得的聚合物可以在光照射下通过I型过程有效地产生超氧自由基(O2 −·),这是缺氧肿瘤治疗的理想选择。有趣的是,在光照射下,共轭聚合物产生的O2 −·可以进一步导致聚合物的自降解,形成无毒的小分子。它不仅有助于解决残留PS的潜在光毒性问题,而且可以加速共轭聚合物的代谢,以避免药物蓄积的潜在生物毒性。这项工作开发了一种可自降解的I型PS,它可以在PDT后及时关闭ROS的产生,为平衡PDT效果和术后安全性提供了一种新的策略。基于共轭聚合物开发了一种自降解I型光敏剂。共轭聚合物在光照射下可以有效地产生O2 −·,这是缺氧肿瘤治疗的理想选择。同时,产生的O2 −·可以反过来降解聚合物,形成生物相容的微分子。值得注意的是,这种可自降解的共轭聚合物提供了一种平衡PDT效果和术后安全性的新策略。
As a noninvasive therapeutic technique, photodynamic therapy (PDT) has attracted numerous research interests for cancer therapy. Nevertheless, the residual photosensitizers (PSs) still produce reactive oxygen species (ROS) and damage normal cells under sunlight after PDT, which limits their practical application in clinic. Herein, the authors propose a self‐degradable type‐I PS based on conjugated polymer, which is composed of aggregation‐induced emission (AIE) and imidazole units. Due to the effective conjugated skeleton and unique AIE properties, thus‐obtained polymers can effectively generate superoxide radical (O2 −•) through the type‐I process under light irradiation, which is ideal for hypoxic tumors treatment. Intriguingly, under light irradiation, O2 −• produced by the conjugated polymers can further lead to the self‐degradation of the polymer to form nontoxic micro‐molecules. It not only helps to resolve the potential phototoxicity problems of residual PSs, but also can accelerate the metabolism of the conjugated polymers to avoid the potential biotoxicity of drug accumulation. This work develops a self‐degradable type‐I PS, which can turn off the generation of ROS in time after PDT, providing a novel strategy to balance the PDT effect and postoperative safety. A self‐degradable type‐I photosensitizer is developed based on conjugated polymer. Conjugated polymers can effectively produce O2 −• under light irradiation, which is ideal for hypoxic tumors treatment. Meanwhile, the generated O2 −• can in return degrade the polymer to form biocompatible micro‐molecules. Significantly, this self‐degradable conjugated polymer provides a novel strategy to balance the PDT effect and postoperative safety.
具有 AIEgen 触发增强光致发光和光降解作用的半导体纳米复合材料,用于双模态肿瘤成像和治疗
DOI: 10.1002/adfm.201903733
发表时间: 2019-07-19
影响因子: 19
作者:
Li, Yawen;Liu, Zitong;Wang, Zhuo
通讯作者: Wang, Zhuo
刀片用好钢:精心定制的具有聚集诱导发射特性的 I 型光敏剂,用于精确核靶向光动力治疗
DOI: 10.1002/advs.202100524
发表时间: 2021-07
期刊: Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子: --
作者:
Kang M;Zhang Z;Xu W;Wen H;Zhu W;Wu Q;Wu H;Gong J;Wang Z;Wang D;Tang BZ
通讯作者: Tang BZ
DOI: 10.1016/j.tiv.2013.01.016
发表时间: 2013-03-01
影响因子: 3.2
作者:
Aranda, A.;Sequedo, L.;Gombau, L.
通讯作者: Gombau, L.
DOI: 10.1002/adma.201802105
发表时间: 2018-09-26
期刊: ADVANCED MATERIALS
影响因子: 29.4
作者:
Wang, Dong;Lee, Michelle M. S.;Tang, Ben Zhong
通讯作者: Tang, Ben Zhong
增强用于光声成像和光热治疗的半导体聚合物纳米粒子的生物降解性和功效
DOI: 10.1021/acsnano.7b08616
发表时间: 2018-02-01
期刊: ACS NANO
影响因子: 17.1
作者:
Lyu, Yan;Zeng, Jianfeng;Pu, Kanyi
通讯作者: Pu, Kanyi