Microneedle-facilitated Portulaca oleracea L.-derived nanovesicles ameliorate atopic dermatitis by modulating macrophage M1/M2 polarization and inhibiting NF-κB and STING signaling pathways.
10.1016/j.apsb.2025.08.021
- Author:
Meng LONG
1
;
Jiaqi LI
1
;
Yuecheng ZHU
2
;
Hang RUAN
3
;
Jing LI
3
;
Fanjun XU
3
;
Ruipeng LIU
3
;
Tao YANG
1
;
Yanqin SHI
2
;
Nianping FENG
1
;
Yongtai ZHANG
1
Author Information
1. Center for Laboratory Animal Service & Experiments, the Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China.
2. The Oriental Beauty Valley Group Metron (Shanghai) Technology Co., Ltd., the Oriental Beauty Valley Research Center for Active Plant Materials, Shanghai 201403, China.
3. School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- Publication Type:Journal Article
- Keywords:
Atopic dermatitis;
Exosomes;
Inflammation;
Macrophage polarization;
Microneedles;
Plant-derived nanovesicles;
Portulaca oleracea L.;
Transdermal delivery
- From:
Acta Pharmaceutica Sinica B
2025;15(11):5966-5987
- CountryChina
- Language:English
-
Abstract:
Clinical management of atopic dermatitis (AD) is challenged by its susceptibility to recurrence, side effects, and high costs. We found that Portulaca oleracea L.-derived nanovesicles (PDNV) exert anti-inflammatory effects by modulating macrophage M1/M2 polarization. These effects were achieved through pathways including inhibition of nuclear factor-κB (NF-κB) and stimulator of interferon genes (STING) protein expression in diseased tissues, demonstrating their potential to ameliorate AD symptoms. To increase the transdermal permeation of PDNV, dissolvable microneedles composed primarily of hyaluronic acid (HA) were developed as an adjunctive means of delivery. Meanwhile, polysaccharides of Portulaca oleracea L., which were synergistic with PDNV, were used as microneedle constituent materials to enhance the mechanical properties and physical stability of HA. This new means of delivery significantly improves the treatment of AD and also provides new options for the efficient utilization of plant extracellular vesicles and the treatment of AD. In addition, transcriptomic analysis of PDNV showed that the mRNAs of Portulaca oleracea L. are closest to those of ferns, which may shed light on related evolutionary and plant species identification studies.
