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Reactive Oxygen Species-Responsive Gel-Based Microneedle Patches for Prolonged and Intelligent Psoriasis Management
ACS Nano ( IF 15.8 ) Pub Date : 2023-02-27 , DOI: 10.1021/acsnano.2c08979
Duohang Bi 1 , Fei Qu 1 , Wanyue Xiao 1 , Jiaxin Wu 1 , Pei Liu 1 , Hongyao Du 2 , Youwei Xie 1 , Hongmei Liu 1 , Lianbin Zhang 1 , Juan Tao 2 , Yijing Liu 1 , Jintao Zhu 1
Affiliation  

Psoriasis is an inflammatory skin disease. Microneedle (MN) patches can improve psoriasis treatment outcomes by increasing local drug content in the skin. As psoriasis frequently relapses, developing intelligent MN-based drug delivery systems with prolonged therapeutic drug levels and improved treatment efficiency is of great significance. Here, we designed detachable H2O2-responsive gel-based MN patches containing methotrexate (MTX) and epigallocatechin gallate (EGCG) by using EGCG as both cross-linkers for needle-composited materials and anti-inflammatory drugs. The gel-based MNs had dual-mode drug release kinetics, which quickly released MTX diffusively and sustainably released EGCG in an H2O2-responsive way. Compared with dissolving MNs, the gel-based MNs extended skin retention of EGCG, leading to prolonged reactive oxygen species (ROS) scavenging effects. The ROS-responsive MN patches that transdermally delivered antiproliferative and anti-inflammatory drugs improved treatment outcomes in both psoriasis-like and prophylactic psoriasis-like animal models.

中文翻译:

用于长期智能银屑病管理的活性氧反应性凝胶微针贴片

牛皮癣是一种炎症性皮肤病。微针 (MN) 贴片可以通过增加皮肤中的局部药物含量来改善银屑病治疗效果。随着银屑病的频繁复发,开发具有延长治疗药物水平和提高治疗效率的基于MN的智能药物递送系统具有重要意义。在这里,我们通过使用 EGCG 作为针头复合材料和抗炎药物的交联剂,设计了包含甲氨蝶呤 (MTX) 和表没食子儿茶素没食子酸酯 (EGCG) 的可分离 H 2 O 2 响应性凝胶基MN贴剂基于凝胶的 MNs 具有双模式药物释放动力学,可在 H 2 O 2中快速扩散释放 MTX 并持续释放 EGCG-响应方式。与溶解性 MNs 相比,基于凝胶的 MNs 延长了 EGCG 的皮肤滞留时间,导致活性氧 (ROS) 清除效果延长。透皮递送抗增殖和抗炎药物的 ROS 反应性 MN 贴片改善了牛皮癣样和预防性牛皮癣样动物模型的治疗结果。
更新日期:2023-02-27
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