A mussel-inspired film for adhesion to wet buccal tissue and efficient buccal drug delivery.

A mussel-inspired film for adhesion to wet buccal tissue and efficient buccal drug delivery.
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一种受贻贝启发的薄膜,用于粘附湿润的口腔组织并有效地进行口腔药物输送

DOI:
10.1038/s41467-021-21989-5
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发表时间:
2021-03-16
影响因子:
16.6
通讯作者:
Wang J
Wang J
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Hu S;Pei X;Duan L;Zhu Z;Liu Y;Chen J;Chen T;Ji P;Wan Q;Wang J

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近年来,通过口腔给药引起了人们的广泛关注。然而,开发在潮湿条件下具有令人满意的粘附性和足够的药物生物利用度的系统仍然是一个挑战。在这里,我们提出了一种以贻贝为灵感的黏附膜。离体模型表明,该膜对湿颊组织具有较强的粘附力(高达38.72±10.94 kPa)。我们还证明了该膜的粘附机制依赖于膜与黏液之间的物理结合和共价键。此外,掺入聚多巴胺纳米颗粒的膜在粘膜屏障运输方面具有优越的优势,具有更高的药物生物利用度(比口服给药高3.5倍)和口腔黏膜炎模型的治疗效果(与未治疗相比,第5天伤口愈合提高了约6.0倍)。我们期望这个平台可以帮助组织粘接剂的发展,并激发基于纳米粒子的口腔输送系统的设计。
Administration of drugs via the buccal route has attracted much attention in recent years. However, developing systems with satisfactory adhesion under wet conditions and adequate drug bioavailability still remains a challenge. Here, we propose a mussel-inspired mucoadhesive film. Ex vivo models show that this film can achieve strong adhesion to wet buccal tissues (up to 38.72 ± 10.94 kPa). We also demonstrate that the adhesion mechanism of this film relies on both physical association and covalent bonding between the film and mucus. Additionally, the film with incorporated polydopamine nanoparticles shows superior advantages for transport across the mucosal barrier, with improved drug bioavailability (~3.5-fold greater than observed with oral delivery) and therapeutic efficacy in oral mucositis models (~6.0-fold improvement in wound closure at day 5 compared with that observed with no treatment). We anticipate that this platform might aid the development of tissue adhesives and inspire the design of nanoparticle-based buccal delivery systems.
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