Volume 9, Issue 4 2401176
Research Article

Platinum Nanozyme-Loaded Dissolving Microneedles Scavenge ROS and Promote Lineage Progression for Androgenetic Alopecia Treatment

Weitong Hu

Weitong Hu

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Shuhan Shi

Shuhan Shi

School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399 China

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Yihua Xu

Yihua Xu

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Yunting Zhang

Yunting Zhang

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Jingyi Hu

Jingyi Hu

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Qiong Bian

Qiong Bian

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Xiaolu Ma

Xiaolu Ma

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Yuxian Ye

Yuxian Ye

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Shengfei Yang

Shengfei Yang

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Xiaoxia Sheng

Xiaoxia Sheng

Hangzhou SoliPharma Co. Ltd, Hangzhou, 311399 China

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Guang Liang

Guang Liang

School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399 China

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Tianyuan Zhang

Tianyuan Zhang

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Haibin Wu

Corresponding Author

Haibin Wu

School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399 China

E-mail: [email protected]; [email protected]

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Jianqing Gao

Corresponding Author

Jianqing Gao

State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

Department of Pharmacy, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 China

Jiangsu Engineering Research Center for New-type External and Transdermal Preparations, Changzhou, 213149 China

E-mail: [email protected]; [email protected]

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First published: 18 October 2024
Citations: 8

Abstract

Androgenetic alopecia (AGA) is a prevalent issue affecting the physical and mental health of individuals but with fewer current treatments. Platinum nanozymes (PtNZs) are known for their excellent ability to reduce and modulate the high oxidative stress environment in AGA pathology. And microneedles are used to overcome the skin barrier due to the poor permeability of PtNZs. Herein, dissolving microneedles loaded with PtNZs (Pt-MNs) are designed and successfully induced hair regeneration in the AGA model. Pt-MNs possessed adequate mechanical strength to breach the skin barrier for effective PtNZs delivery. In vivo, PtNZs first reduced reactive oxygen species (ROS) to oxygen, which recovered the AGA pathological environment. And the oxygen then increased oxidative phosphorylation, promoting the differentiation of hair follicle stem cells to achieve hair regeneration. The group treated with Pt-MNs with a dosing frequency of once every three days achieved faster hair growth than the daily application of the positive drug minoxidil. Further safety experiments showed that the application of Pt-MNs locally opened temporary and recoverable skin channels, with no retention of Pt in major organs, indicating high safety. In conclusion, this study indicated the potential of Pt-MNs as an effective method for treating AGA.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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