New to MyHealth?
Manage Your Care From Anywhere.
Access your health information from any device with MyHealth. You can message your clinic, view lab results, schedule an appointment, and pay your bill.
ALREADY HAVE AN ACCESS CODE?
DON'T HAVE AN ACCESS CODE?
NEED MORE DETAILS?
MyHealth for Mobile
Get the iPhone MyHealth app »
Get the Android MyHealth app »
Abstract
Wear particles induce periprosthetic inflammation and osteolysis through activation of Nuclear Factor kappa B (NF-?B) in macrophages, which up-regulates the downstream target gene expression for pro-inflammatory cytokines. It is hypothesized that direct suppression of NF-?B activity in the early phases of this disorder is a therapeutic strategy for mitigating the inflammatory response to wear particles, potentially mitigating osteolysis. NF-?B activity can be suppressed via competitive binding with double stranded NF-?B decoy oligodeoxynucleotides (ODNs) that block this transcription factor from binding to the promoter regions of targeted genes. In this murine calvarial study, clinically relevant polyethylene particles (PEs) with/without ODN were subcutaneously injected over the calvarial bone. In the presence of PE particles, macrophages migrated to the inflammatory site and induced tumor necrosis factor alpha (TNF-a) and Receptor Activator of Nuclear Factor kappa-B Ligand (RANKL) expression, resulting in an increase in the number of osteoclasts. Local injections of ODN mitigated the expression of TNF-a, RANKL, and induced the expression of two anti-inflammatory, anti-resorptive cytokines: Interleukin-1 receptor antagonist (IL-1ra) and Osteoprotegerin (OPG). Local intervention with NF-?B decoy ODN in early cases of particle-induced inflammation in which the prosthesis is still salvageable may potentially preserve periprosthetic bone stock. This article is protected by copyright. All rights reserved.
View details for DOI 10.1002/jbm.a.35532
View details for Web of Science ID 000363879200018
View details for PubMedID 26123702