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

N Kiguchi, H Sakaguchi, Y Kadowaki, F Saika… - Journal of …, 2017 - Elsevier
N Kiguchi, H Sakaguchi, Y Kadowaki, F Saika, Y Fukazawa, S Matsuzaki, S Kishioka
Journal of Pharmacological Sciences, 2017Elsevier
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 …
Abstract
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.
Elsevier