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Du A, Chen J, Xie Z, Yang Y, Chen CB, Lu CW, Liu CC, Chen M, Chung WH, Lin C, Ke R, Chang CJ. Multi-omics analysis of outer membrane vesicles from P. goldsteinii in a psoriasis mouse model. Life Sci 2025; 377:123776. [PMID: 40449877 DOI: 10.1016/j.lfs.2025.123776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2025] [Revised: 05/20/2025] [Accepted: 05/27/2025] [Indexed: 06/03/2025]
Abstract
AIMS Psoriasis is a chronic skin inflammation with no complete cure. Parabacteroides goldsteinii (P. goldsteinii), a probiotic, alleviates inflammation by modulating gut microbiota. Its outer membrane vesicles (PG-OMVs) deliver microbial molecules to influence host-microbiota interactions. However, their role in psoriasis remains unclear. This study explores the effects and mechanisms of PG-OMVs in psoriasis. MATERIALS AND METHODS PG-OMVs were isolated from P. goldsteinii using high-pressure tangential flow ultrafiltration combined with size exclusion chromatography, and characterized by transmission electron microscopy and nano-flow cytometry. Subsequently, Lipidomic and proteomic analysis was performed to investigate the composition of PG-OMVs. A psoriasis-like mouse model was established using imiquimod to evaluate their therapeutic effects. Furthermore, transcriptomic analysis, in situ sequencing, and 16S rRNA sequencing were applied to skin and fecal samples to explore underlying mechanisms. An in vitro model using LPS-stimulated HaCaT keratinocytes was also employed to assess the cytotoxicity and anti-inflammatory activity of PG-OMVs. KEY FINDINGS PG-OMVs have an average diameter of approximately 84.9 nm and a uniformly disc-like morphology. Lipidomic and proteomic revealed diverse lipid species and proteins potentially involved in regulating metabolic dysfunction. In the imiquimod-induced mouse model, PG-OMVs alleviated skin lesions and histopathological changes. Mechanistic studies showed that PG-OMVs modulate mTOR, TNF, and IL-17 pathways, regulate inflammatory and proliferative genes (e.g., AKT1, mTOR, FOS, FOSB), and restore gut microbial balance. In vitro, PG-OMVs significantly suppressed pro-inflammatory cytokines. SIGNIFICANCE This study demonstrates that PG-OMVs ameliorate psoriasis by regulating inflammatory pathways and the gut microbiota, offering a promising therapeutic strategy.
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Affiliation(s)
- Anqi Du
- School of Medicine, Huaqiao University, Xiamen, Fujian, China
| | - Jiayu Chen
- School of Medicine, Huaqiao University, Xiamen, Fujian, China
| | - Zhaoxiang Xie
- School of Medicine, Huaqiao University, Xiamen, Fujian, China
| | - Yu Yang
- School of Medicine, Huaqiao University, Xiamen, Fujian, China
| | - Chun-Bing Chen
- Department of Dermatology and Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taipei, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan; Department of Dermatology, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, Fujian, China
| | - Chun-Wei Lu
- Department of Dermatology and Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taipei, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chien-Chun Liu
- Engineering Research Center of Natural Cosmeceuticals College of Fujian Province, Xiamen Medical College, Fujian, China; The School of Public Health and Medical Technology, Xiamen Medical College, Xiamen, Fujian, China
| | - Maoli Chen
- Department of Basic Medicine, Xiamen medical college, Xiamen, Fujian, China
| | - Wen-Hung Chung
- Department of Dermatology and Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taipei, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan; Department of Dermatology, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, Fujian, China
| | - Chen Lin
- School of Medicine, Huaqiao University, Xiamen, Fujian, China
| | - Rongqin Ke
- School of Medicine, Huaqiao University, Xiamen, Fujian, China.
| | - Chih-Jung Chang
- School of Medicine, Huaqiao University, Xiamen, Fujian, China; Medical Research Center, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, Fujian, China..
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