Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia

Hao Cheng, Yong Zhang, Weiping Lu, Xianzhong Gao, Chenjie Xu, Hongguang Bao Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China Background: Management of neuropathic pain is still a clinical challenge. Evidence has accumulated indicating that propo...

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Main Authors: Cheng H, Zhang Y, Lu W, Gao X, Xu C, Bao H
Format: Article
Language:English
Published: Dove Medical Press 2018-11-01
Series:Journal of Pain Research
Subjects:
Online Access:https://www.dovepress.com/caffeic-acid-phenethyl-ester-attenuates-neuropathic-pain-by-suppressin-peer-reviewed-article-JPR
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author Cheng H
Zhang Y
Lu W
Gao X
Xu C
Bao H
author_facet Cheng H
Zhang Y
Lu W
Gao X
Xu C
Bao H
author_sort Cheng H
collection DOAJ
description Hao Cheng, Yong Zhang, Weiping Lu, Xianzhong Gao, Chenjie Xu, Hongguang Bao Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China Background: Management of neuropathic pain is still a clinical challenge. Evidence has accumulated indicating that propolis is effective in attenuating neuropathic pain; however, the mechanism is not fully understood. Our present study investigated the effects and the possible mechanism of caffeic acid phenethyl ester (CAPE), the main ingredient of propolis, in improving neuropathic pain via its inhibition on p38/NF-κB signal pathway in microglia. Materials and methods: Chronic constriction injury (CCI) mice model and the microglial cell line BV-2 were used to investigate the effects and the mechanism of CAPE. Cell signaling was measured by real-time PCR, Western blotting and immunofluorescence assay. Results: CAPE relieved neuropathic pain behaviors induced by CCI in mice. CAPE also inhibited CCI-induced activation of microglia. Furthermore, CAPE suppressed the phosphorylation of p38 mitogen-activated protein kinase, inhibited the translocation of NF-κB and decreased the expression of proinflammatory cytokines tumor necrosis factor-α, IL-1β and IL-6. Conclusion: CAPE was found to be an effective and safe drug candidate for alleviating neuropathic pain by its powerful inhibition on the P38/NF-κB signal pathway. Keywords: caffeic acid phenethyl ester, NF-κB, neuropathic pain, microglia
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spelling doaj.art-d8132afed9b64d15a532c7627e1b02632022-12-21T23:53:14ZengDove Medical PressJournal of Pain Research1178-70902018-11-01Volume 112709271941968Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microgliaCheng HZhang YLu WGao XXu CBao HHao Cheng, Yong Zhang, Weiping Lu, Xianzhong Gao, Chenjie Xu, Hongguang Bao Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China Background: Management of neuropathic pain is still a clinical challenge. Evidence has accumulated indicating that propolis is effective in attenuating neuropathic pain; however, the mechanism is not fully understood. Our present study investigated the effects and the possible mechanism of caffeic acid phenethyl ester (CAPE), the main ingredient of propolis, in improving neuropathic pain via its inhibition on p38/NF-κB signal pathway in microglia. Materials and methods: Chronic constriction injury (CCI) mice model and the microglial cell line BV-2 were used to investigate the effects and the mechanism of CAPE. Cell signaling was measured by real-time PCR, Western blotting and immunofluorescence assay. Results: CAPE relieved neuropathic pain behaviors induced by CCI in mice. CAPE also inhibited CCI-induced activation of microglia. Furthermore, CAPE suppressed the phosphorylation of p38 mitogen-activated protein kinase, inhibited the translocation of NF-κB and decreased the expression of proinflammatory cytokines tumor necrosis factor-α, IL-1β and IL-6. Conclusion: CAPE was found to be an effective and safe drug candidate for alleviating neuropathic pain by its powerful inhibition on the P38/NF-κB signal pathway. Keywords: caffeic acid phenethyl ester, NF-κB, neuropathic pain, microgliahttps://www.dovepress.com/caffeic-acid-phenethyl-ester-attenuates-neuropathic-pain-by-suppressin-peer-reviewed-article-JPRCaffeic acid phenethyl esterNF-κBneuropathic painmicroglia
spellingShingle Cheng H
Zhang Y
Lu W
Gao X
Xu C
Bao H
Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
Journal of Pain Research
Caffeic acid phenethyl ester
NF-κB
neuropathic pain
microglia
title Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
title_full Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
title_fullStr Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
title_full_unstemmed Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
title_short Caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38/NF-κB signal pathway in microglia
title_sort caffeic acid phenethyl ester attenuates neuropathic pain by suppressing the p38 nf kappa b signal pathway in microglia
topic Caffeic acid phenethyl ester
NF-κB
neuropathic pain
microglia
url https://www.dovepress.com/caffeic-acid-phenethyl-ester-attenuates-neuropathic-pain-by-suppressin-peer-reviewed-article-JPR
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