Biomaterials, Biodegradables and Biomimetics Research Group

Papers in Scientific Journals

Interleukin-6 Neutralization by Antibodies Immobilized at the Surface of Polymeric Nanoparticles as a Therapeutic Strategy for Arthritic Diseases

Abstract

Arthritic diseases are disabling conditions affecting millions of patients worldwide. Pro-inflammatory cytokines, particularly interleukin-6 (IL-6), plays a crucial role in inflammation and cartilage destruction. Although the beneficial effects of antibody therapy, its efficacy is limited. Therefore, this work proposes the immobilization of antibodies at the surface of biodegradable polymeric nanoparticles (NPs) to capture and neutralize IL-6. Our system is intended to protect, extend and enhance the therapeutic efficacy after delivery. Chitosan−hyaluronic acid NPs are synthesized as a stable monodisperse population. After determining the maximum immobilization capacity (10 μg/mL), the capture ability was confirmed. Biological assays demonstrate the NPs cytocompatibility with human articular chondrocytes (hACs) and human macrophages. hACs stimulated with macrophage conditioned medium shows the beneficial role of IL-6 capture and neutralization. Biofunctionalized NPs exhibit a prolonged action and stronger efficacy than the free antibody. In conclusion, this system can be an effective and long lasting treatment for arthritic diseases.

Journal
Acs Applied Materials & Interfaces
Volume
10
Issue
16
Pagination
13839-13850
Publisher
ACS Publications
ISSN
1944-8252
URL
http://dx.doi.org/10.1021/acsami.8b01432
Keywords
anti-IL-6 antibody immobilization, Arthritic diseases, biodegradable polymeric nanoparticles, IL-6 capture and neutralization, pro-inflammatory cytokine interleukin-6
Rights
Restricted Access (1 Year)
Peer Reviewed
Yes
Status
published
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