期刊
PAIN
卷 110, 期 1-2, 页码 299-309出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1016/j.pain.2004.04.008
关键词
allodynia; interleukin-1; tumor necrosis factor; interleukin-6; complement; reactive oxygen species; sciatic nerve
资金
- NIDA NIH HHS [DA015642] Funding Source: Medline
- NINDS NIH HHS [NS30696] Funding Source: Medline
In inflammatory neuropathy, immune activation near intact peripheral nerves induces mechanical allodynia. The identity of the peripheral immune product(s) that lead to these changes in pain behavior is unknown. The present series of studies utilized the sciatic inflammatory neuropathy (SIN) model to examine this question. Here, inflammatory neuropathy is created by injecting an immune activator (zymosan) around one sciatic nerve via an indwelling catheter. Our prior studies demonstrated that peri-sciatic zymosan activated macrophages and neutrophils to release proinflammatory cytokines and reactive oxygen species (ROS). In addition, zymosan is a classical activator of the complement cascade. Thus the present series of experiments examined whether any of these inflammatory mediators are involved in the initial induction of SENT-induced ipsilateral or bilateral allodynias. Peri-sciatic injection of selective inhibitors/antagonists revealed that a number of immune products are early mediators of the resultant allodynias, including proinflammatory cytokines (tumor necrosis factor, interleukin-1. and interleukin-6), ROS, and complement. Thus these immune-derived substances can markedly alter sensory nerve function at mid-axon. (C) 2004 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.
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