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  • Title: Inhibitory effects of recombinant IL-4 and recombinant IL-13 on UHMWPE-induced bone destruction in the murine air pouch model.
    Author: Wang Y, Wu NN, Mou YQ, Chen L, Deng ZL.
    Journal: J Surg Res; 2013 Apr; 180(2):e73-81. PubMed ID: 22560858.
    Abstract:
    PURPOSE: We administered recombinant interleukin (IL)-4 and recombinant IL-13 locally into the air pouch of mice to improve bone resorption induced by ultra-high-molecular-weight polyethylene (UHMWPE) particles. METHODS: Air pouches were established on the back of BALB/c mice, followed by the surgical introduction of a section of calvaria from a syngeneic mouse donor. We stimulated the bone-implanted pouches with the UHMWPE suspension. We divided UHMWPE-containing mice into four study groups to receive injections of phosphate-buffered saline (control), IL-4 alone, IL-13 alone, or IL-4 and IL-13 into the pouches. We harvested the tissues at 14 d after treatment for molecular and histological analyses. RESULTS: The inhibitory effect of IL-4 was stronger than that of IL-13 toward osteoclast differentiation and osteoblast for the induction of osteoprotegerin production and down-regulation of receptor for activation of nuclear factor-κB ligand production. Furthermore, the combined treatment with both IL-4 and 1L-13 had a more important role in inhibiting bone resorption in these pouches with UHMWPE stimulation, compared with IL-4 or IL-13 treatment alone. CONCLUSIONS: Local administration of recombinant IL-4 and IL-13 may be a feasible and effective therapeutic candidate to treat or prevent wear debris-associated osteolysis.
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