Multifunctional photodynamic/photothermal nano-agents for the treatment of oral leukoplakia.

Multifunctional photodynamic/photothermal nano-agents for the treatment of oral leukoplakia.
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DOI:
10.1186/s12951-022-01310-2
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发表时间:
2022-03-04
影响因子:
10.2
通讯作者:
Han W
Han W
中科院分区:
工程技术1区
文献类型:
--
作者:
Lin L;Song C;Wei Z;Zou H;Han S;Cao Z;Zhang X;Zhang G;Ran J;Cai Y;Han W

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口腔白斑(OLK)由于潜在的恶变风险而受到广泛关注。光敏剂(PSs)在OLK的光动力治疗(PDT)中发挥着不可或缺的作用,但光敏感性差极大地限制了其临床应用。在此,开发了一种用于 OLK 光动力/光热疗法(PTT)的新型有机光敏 ITIC-Th 纳米颗粒(ITIC-Th NP)。 ITIC-Th NPs在660 nm激光照射下表现出高光热转换效率(~ 38%)和合适的活性氧(ROS)生成能力,使其具有优异的PDT和PTT能力。在 4-硝基喹啉 1-氧化物 (4NQO) 诱导的口腔癌前动物模型中,ITIC-Th NPs 有效抑制 OLK 的癌化,且体内没有明显的局部或全身毒性。这项研究为 OLK 治疗中的 PDT 和 PTT 提供了一种有前景的治疗策略,也是 OLK 多模式治疗领域的第一个跨学科研究。在线版本包含可在 10.1186/s12951-022-01310-2 获取的补充材料。
Oral leukoplakia (OLK) has gained extensive attention because of the potential risk for malignant transformation. Photosensitizers (PSs) played an indispensable role in the photodynamic therapy (PDT) of OLK, but the poor light sensitivity greatly hampered its clinical application. Herein, a novel organic photosensitive ITIC-Th nanoparticles (ITIC-Th NPs) were developed for OLK photodynamic/photothermal therapy (PTT). ITIC-Th NPs present both high photothermal conversion efficiency (~ 38%) and suitable reactive oxygen species (ROS) generation ability under 660 nm laser irradiation, making them possess excellent PDT and PTT capability. In 4-nitroquinoline 1-oxide (4NQO)-induced oral precancerous animal models, ITIC-Th NPs effectively suppress the OLK's cancerization without apparent topical or systemic toxicity in vivo. This study offers a promising therapeutic strategy for PDT and PTT in OLK treatment, and this study is the first interdisciplinary research in the field of multimodal therapy for OLK. The online version contains supplementary material available at 10.1186/s12951-022-01310-2.
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