Cell Reports (Nov 2023)

Blockade of CCR5 suppresses paclitaxel-induced peripheral neuropathic pain caused by increased deoxycholic acid

  • Shanshan Zhong,
  • Fangxi Liu,
  • Rashid Giniatullin,
  • Jukka Jolkkonen,
  • Yong Li,
  • Zhike Zhou,
  • Xinyu Lin,
  • Chang Liu,
  • Xiuchun Zhang,
  • Zhouyang Liu,
  • Cheng Lv,
  • Qianqian Guo,
  • Chuansheng Zhao

Journal volume & issue
Vol. 42, no. 11
p. 113386

Abstract

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Summary: Paclitaxel leads to peripheral neuropathy (paclitaxel-induced peripheral neuropathy [PIPN]) in approximately 50% of cancer patients. At present, there are no effective treatment strategies for PIPN, the mechanisms of which also remain unclear. In this study, we performed microbiome and metabolome analysis of feces and serum from breast cancer patients with different PIPN grades due to paclitaxel treatment. Our analysis reveals that levels of deoxycholic acid (DCA) are highly increased because of ingrowth of Clostridium species, which is associated with severe neuropathy. DCA, in turn, elevates serum level of C-C motif ligand 5 (CCL5) and induces CCL5 receptor 5 (CCR5) overexpression in dorsal root ganglion (DRG) through the bile acid receptor Takeda G-protein-coupled receptor 5 (TGR5), contributing to neuronal hyperexcitability. Consistent with this, administration of CCR5 antagonist maraviroc suppresses the development of neuropathic nociception. These results implicate gut microbiota/bile acids/CCR5 signaling in the induction of PIPN, thus suggesting a target for PIPN treatment.

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