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Immunomodulatory nanodiamond aggregate-based platform for the treatment of rheumatoid arthritis
Journal article   Open access   Peer reviewed

Immunomodulatory nanodiamond aggregate-based platform for the treatment of rheumatoid arthritis

Amanda Pentecost, Min Ju Kim, Sangmin Jeon, Young Ji Ko, Ick Chan Kwon, Yury Gogotsi, Kwangmeyung Kim and Kara L Spiller
Regenerative biomaterials, v 6(3), pp 163-174
Jun 2019
PMID: 31198584
url
https://doi.org/10.1093/rb/rbz012View
Published, Version of Record (VoR) Open

Abstract

nanobiomaterials biomaterial–cell interaction drug delivery
We previously demonstrated that octadecylamine-functionalized nanodiamond (ND-ODA) and dexamethasone (Dex)-adsorbed ND-ODA (ND-ODA–Dex) promoted anti-inflammatory and pro-regenerative behavior in human macrophages in vitro . In this study, we performed a pilot study to investigate if these immunomodulatory effects translate when used as a treatment for rheumatoid arthritis in mice. Following local injection in limbs of mice with collagen type II-induced arthritis, microcomputed tomography showed that mice treated with a low dose of ND-ODA and ND-ODA–Dex did not experience bone loss to the levels observed in non-treated arthritic controls. A low dose of ND-ODA and ND-ODA–Dex also reduced macrophage infiltration and expression of pro-inflammatory mediators iNOS and tumor necrosis factor-α compared to the arthritic control, while a high dose of ND-ODA increased expression of these markers. Overall, these results suggest that ND-ODA may be useful as an inherently immunomodulatory platform, and support the need for an in-depth study, especially with respect to the effects of dose.

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27 citations in Scopus

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Collaboration types
Industry collaboration
Domestic collaboration
International collaboration
Web of Science research areas
Materials Science, Biomaterials
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