Peripheral administration of interleukin-13 reverses inflammatory macrophage and tactile allodynia in mice with partial sciatic nerve ligation.

Norikazu Kiguchi, Haruka Sakaguchi, Yui Kadowaki, Fumihiro Saika, Yohji Fukazawa, Shinsuke Matsuzaki, Shiroh Kishioka

Journal of pharmacological sciences 2017 Jan

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Inflammatory macrophages play a fundamental role in neuropathic pain. In this study, we demonstrate the effects of peripheral interleukin-13 (IL-13) on neuropathic pain after partial sciatic nerve (SCN) ligation (PSL) in mice. IL-13 receptor α1 was upregulated in accumulating macrophages in the injured SCN after PSL. Treatment with IL-13 reduced inflammatory macrophage-dominant molecules and increased suppressive macrophage-dominant molecules in cultured lipopolysaccharide-stimulated peritoneal macrophages and ex vivo SCN subjected to PSL. Moreover, the perineural administration of IL-13 relieved tactile allodynia after PSL. These results suggest that IL-13 reverses inflammatory macrophage-dependent neuropathic pain via a phenotype shift toward suppressive macrophages. Copyright © 2016 The Authors. Production and hosting by Elsevier B.V. All rights reserved.

Citation

Norikazu Kiguchi, Haruka Sakaguchi, Yui Kadowaki, Fumihiro Saika, Yohji Fukazawa, Shinsuke Matsuzaki, Shiroh Kishioka. Peripheral administration of interleukin-13 reverses inflammatory macrophage and tactile allodynia in mice with partial sciatic nerve ligation. Journal of pharmacological sciences. 2017 Jan;133(1):53-56