Abstract | BACKGROUND:
Cancer-induced bone pain (CIBP) is one of the most challenging clinical problems due to a lack of understanding the mechanisms. Recent evidence has demonstrated that activation of microglial G-protein-coupled P2Y12 receptor (P2Y12R) and proinflammatory cytokine production play an important role in neuropathic pain generation and maintenance. However, whether P2Y12R is involved in CIBP remains unknown. METHODS: The purpose of this study was to investigate the role of P2Y12R in CIBP and its molecular mechanisms. Using the bone cancer model inoculated with Walker 256 tumor cells into the left tibia of Sprague Dawley rat, we blocked spinal P2Y12R through intrathecal administration of its selective antagonist MRS2395 (400 pmol/µL, 15 µL). RESULTS: CONCLUSION: Taken together, our present results suggest that microglial P2Y12R in the spinal cord may contribute to CIBP by the activation of spinal microglia and p38MAPK pathway, thus identifying a potential therapeutic target for the treatment of CIBP.
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Authors | Mingjuan Liu, Ming Yao, Hanqi Wang, Longsheng Xu, Ying Zheng, Bing Huang, Huadong Ni, Shijie Xu, Xuyan Zhou, Qingquan Lian |
Journal | Journal of pain research
(J Pain Res)
Vol. 10
Pg. 417-426
( 2017)
ISSN: 1178-7090 [Print] New Zealand |
PMID | 28243146
(Publication Type: Journal Article)
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