Man Xiao1, Xiaopeng Fu2, Yali Ni3, Jifeng Chen4, Shaoqing Jian5, Liankai Wang6, Li Li7, Guankui Du8. 1. Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou 571101, China. Electronic address: 547685716@qq.com. 2. Clinical College of Hainan Medical University, Haikou 571101, China; The Second People's Hospital of Ledong Li Autonomous County, Ledong 572536, China. Electronic address: 15289792720@163.com. 3. College of Pharmacy, Hainan Medical University, Haikou 571101, China. Electronic address: 513410073@qq.com. 4. Department of Pathology, Wenchang People's Hospital, Wenchang 571300, China. Electronic address: chenjifeng_wch@163.com. 5. Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou 571101, China. Electronic address: 2097803123@qq.com. 6. Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou 571101, China. Electronic address: 2646832322@qq.com. 7. Department of Tissue Engineering of Medicine, Hainan Medical University, Haikou 571101, China. Electronic address: 764825978@qq.com. 8. Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou 571101, China. Electronic address: duguankui@163.com.
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE: Paederia scandens (Lour.) Merr. (P. scandens) has been traditionally used to treat the pain of rheumatism. AIM OF THE STUDY: The purpose of this study was to investigate the possible influences of P. scandens on the progression of rheumatoid arthritis (RA), inflammatory responses and gut bacterial communities in RA mouse model. MATERIALS AND METHODS: collagen-induced arthritis (CIA) mice were orally administered with P. scandens extract (PSE) for 24 days. Then, pro-inflammatory cytokine levels in the serum were measured, and gut microbiota was examined with Illumina HiSeq. RESULTS: Compared with the vehicle group, PSE significantly inhibited paw swelling and reduced arthritis score. Histological examination of ankle soft tissue of demonstrated PSE effectively inhibited the tissue fibrosis and inflammatory cell infiltration. The increased serum levels of TNF-α, IL-1β, IL-6, IL-7, and IL-23 in RA mice were significantly suppressed by PSE. Moreover, PSE treatment help restore gut microbial ecosystem altered in RA mice including decreasing relative abundance of inflammatory related microorganisms, Desulfovibrio, Mucispirillum, Helicobacter, and Lachnospiraceae. CONCLUSION: These results suggest that PSE has therapeutic effects in RA mice with CIA, showing the potential as anti-arthritis reagent.
ETHNOPHARMACOLOGICAL RELEVANCE: Paederia scandens (Lour.) Merr. (P. scandens) has been traditionally used to treat the pain of rheumatism. AIM OF THE STUDY: The purpose of this study was to investigate the possible influences of P. scandens on the progression of rheumatoid arthritis (RA), inflammatory responses and gut bacterial communities in RA mouse model. MATERIALS AND METHODS: collagen-induced arthritis (CIA) mice were orally administered with P. scandens extract (PSE) for 24 days. Then, pro-inflammatory cytokine levels in the serum were measured, and gut microbiota was examined with Illumina HiSeq. RESULTS: Compared with the vehicle group, PSE significantly inhibited paw swelling and reduced arthritis score. Histological examination of ankle soft tissue of demonstrated PSE effectively inhibited the tissue fibrosis and inflammatory cell infiltration. The increased serum levels of TNF-α, IL-1β, IL-6, IL-7, and IL-23 in RA mice were significantly suppressed by PSE. Moreover, PSE treatment help restore gut microbial ecosystem altered in RA mice including decreasing relative abundance of inflammatory related microorganisms, Desulfovibrio, Mucispirillum, Helicobacter, and Lachnospiraceae. CONCLUSION: These results suggest that PSE has therapeutic effects in RA mice with CIA, showing the potential as anti-arthritis reagent.