Abstract
Objective
Nanoparticles (NPs) hold a great promise in combating rheumatoid arthritis, but are often compromised by their toxicities because the currently used NPs are usually synthesized by chemical methods. Our group has previously fabricated Ångstrom-scale silver particles (AgÅPs) and demonstrated the anti-tumor and anti-sepsis efficacy of fructose-coated AgÅPs (F-AgÅPs). This study aimed to uncover the efficacy and mechanisms of F-AgÅPs for arthritis therapy.
Methods
We evaluated the efficacy of F-AgÅPs in collagen-induced arthritis (CIA) mice. We also compared the capacities of F-AgÅPs, the commercial AgNPs, and the clinical drug methotrexate (MTX) in protecting against K/BxN serum-transfer arthritis (STA) mice. Moreover, we evaluated the effects of F-AgÅPs and AgNPs on inflammation, osteoclast formation, synoviocytes migration, and matrix metalloproteinases (MMPs) production in vitro and in vivo. Meanwhile, the toxicities of F-AgÅPs and AgNPs in vitro and in vivo were also tested.
Results
F-AgÅPs significantly prevented bone erosion, synovitis, and cartilage damage, attenuated rheumatic pain, and improved the impaired motor function in mouse models of CIA or STA, the anti-rheumatic effects of which were comparable or stronger than AgNPs and MTX. Further studies revealed that F-AgÅPs exhibited similar or greater inhibitory abilities than AgNPs to suppress inflammation, osteoclast formation, synoviocytes migration, and MMPs production. No obvious toxicities were observed in vitro and in vivo after F-AgÅPs treatment.
Conclusions
F-AgÅPs can effectively alleviate arthritis without notable toxicities and their anti-arthritic effects are associated with the inhibition of inflammation, osteoclastogenesis, synoviocytes migration, and MMPs production. Our study suggests the prospect of F-AgÅPs as an efficient and low-toxicity agent for arthritis therapy.
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Data availability
All data generated or analyzed during this study are included in this published article.
Abbreviations
- RA:
-
Rheumatoid arthritis
- AgÅPs:
-
Ångstrom-scale silver particles
- F-AgÅPs:
-
Fructose-coated AgÅPs
- NSAIDs:
-
Non-steroidal anti-inflammatory drugs
- SAARDs:
-
Slow-acting anti-rheumatic drugs
- NPs:
-
Nanoparticles
- AgNPs:
-
Nanometer-scale silver particles
- CIA:
-
Collagen-induced arthritis
- MTX:
-
Methotrexate
- STA:
-
K/BxN serum-transfer arthritis
- MMP:
-
Matrix metalloproteinase
- DAB:
-
Diaminobenzidine tetrahydrochloride
- BMMs:
-
Primary murine bone marrow macrophages
- FBS:
-
Fetal bovine serum
- M‐CSF:
-
Recombinant murine macrophage colony‐stimulating factor
- PS:
-
Penicillin–streptomycin
- SD:
-
Standard deviation
- ANOVA:
-
Analysis of variance
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Acknowledgements
This work was supported by the Special Funding for the Construction of Innovative Provinces in Hunan (Grant Nos. 2019SK2301), the Science and Technology Innovation Program of Hunan Province (Grant Nos. 2022RC1211), the China National Postdoctoral Program for Innovative Talents (Grant Nos. BX2021383), the Central South University Innovation-Driven Research Programme (Grant Nos. 2023CXQD001), the Hunan Province Natural Science Foundation of China (Grant No. 2023JJ10094), and the Hunan Provincial Innovation Foundation for Postgraduate (Grant Nos. 2021zzts0342, 2022ZZTS0239). We especially thank Professor Fu-Bin Li (Shanghai Jiao Tong University) for providing T cell receptor (TCR)-transgenic KRN mice.
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HX, C-YC, and Z-HH designed this study. Z-HH and C-YC wrote the manuscript. Z-HH, J-TZ, XC, J-SG, YC, LJ, Y-WL, WD, H-ML, Y-XQ, Y-YW, T-FW, HZ, and YL, did the experiments or/and analyzed the data. Z-HH and C-YC prepared the figures. S-SR, YH, Y-JT, Z-XW, and ZW provided technical support. All authors read and approved the manuscript.
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All animal experiments in this study were approved by the Ethical Review Board at Xiangya Hospital of Central South University (no. 202009015). Animal care and all experimental procedures were conducted in accordance with the Department of Laboratory Animals of Central South University.
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He, ZH., Zou, JT., Chen, X. et al. Ångstrom-scale silver particles ameliorate collagen-induced and K/BxN-transfer arthritis in mice via the suppression of inflammation and osteoclastogenesis. Inflamm. Res. 72, 2053–2072 (2023). https://doi.org/10.1007/s00011-023-01778-0
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DOI: https://doi.org/10.1007/s00011-023-01778-0