Epiregulin and EGFR interactions are involved in pain processing.

Published

Journal Article

The EGFR belongs to the well-studied ErbB family of receptor tyrosine kinases. EGFR is activated by numerous endogenous ligands that promote cellular growth, proliferation, and tissue regeneration. In the present study, we have demonstrated a role for EGFR and its natural ligand, epiregulin (EREG), in pain processing. We show that inhibition of EGFR with clinically available compounds strongly reduced nocifensive behavior in mouse models of inflammatory and chronic pain. EREG-mediated activation of EGFR enhanced nociception through a mechanism involving the PI3K/AKT/mTOR pathway and matrix metalloproteinase-9. Moreover, EREG application potentiated capsaicin-induced calcium influx in a subset of sensory neurons. Both the EGFR and EREG genes displayed a genetic association with the development of chronic pain in several clinical cohorts of temporomandibular disorder. Thus, EGFR and EREG may be suitable therapeutic targets for persistent pain conditions.

Full Text

Duke Authors

Cited Authors

  • Martin, LJ; Smith, SB; Khoutorsky, A; Magnussen, CA; Samoshkin, A; Sorge, RE; Cho, C; Yosefpour, N; Sivaselvachandran, S; Tohyama, S; Cole, T; Khuong, TM; Mir, E; Gibson, DG; Wieskopf, JS; Sotocinal, SG; Austin, JS; Meloto, CB; Gitt, JH; Gkogkas, C; Sonenberg, N; Greenspan, JD; Fillingim, RB; Ohrbach, R; Slade, GD; Knott, C; Dubner, R; Nackley, AG; Ribeiro-da-Silva, A; Neely, GG; Maixner, W; Zaykin, DV; Mogil, JS; Diatchenko, L

Published Date

  • September 1, 2017

Published In

Volume / Issue

  • 127 / 9

Start / End Page

  • 3353 - 3366

PubMed ID

  • 28783046

Pubmed Central ID

  • 28783046

Electronic International Standard Serial Number (EISSN)

  • 1558-8238

Digital Object Identifier (DOI)

  • 10.1172/JCI87406

Language

  • eng

Conference Location

  • United States