Glial Cell-derived Neurotrophic Factor Attenuates Neuropathic Pain in a Mouse Model of Chronic Constriction Injury: Possible Involvement of E-cadherin/p120ctn Signaling
Overview
Neurology
Affiliations
Treating neuropathic pain is a major clinical challenge, and several key molecules associated with nociception have been suggested as potential targets for novel analgesics. Many studies have reported the anti-nociceptive effects of glial cell-derived neurotrophic factor (GDNF), but the underlying mechanism remains largely unknown. The present study was performed to assess the effects of GDNF in a mouse model of chronic constriction injury (CCI)-induced neuropathic pain. We also determined the potential role of E-cadherin/p120 catenin (p120ctn) signaling in these effects. Mice received an intrathecal acute injection of PBS, GDNF, and DECMA-1 (an E-cadherin functional blocking antibody) or a combination of DECMA-1 with GDNF on the testing days. Our results demonstrated that CCI caused a rapid decrease in E-cadherin and membrane-associated p120ctn in the spinal dorsal horn. Together, these data demonstrated that E-cadherin-associated p120ctn was upregulated by GDNF and that this upregulation was inhibited by pre-treatment with DECMA-1. Moreover, DECMA-1 significantly inhibited the effect of GDNF on thermal hyperalgesia. These data suggest that GDNF might have a therapeutic potential for the treatment of CCI-induced neuropathic pain and that the E-cadherin/p120ctn might play a role in GDNF-induced attenuation of thermal hyperalgesia.
Yang Y, Rao C, Yin T, Wang S, Shi H, Yan X Front Cell Neurosci. 2023; 17:1253438.
PMID: 37941605 PMC: 10627933. DOI: 10.3389/fncel.2023.1253438.
Marshall A, Galea G, Copp A, Greene N Cells Dev. 2023; 174:203840.
PMID: 37068590 PMC: 10618430. DOI: 10.1016/j.cdev.2023.203840.
Song W, Yong Y, Zhou Y, Lu L, Yu G, Tang W Purinergic Signal. 2022; 19(3):481-487.
PMID: 36529845 PMC: 10539240. DOI: 10.1007/s11302-022-09911-0.
Ferrini F, Salio C, Boggio E, Merighi A Curr Neuropharmacol. 2020; 19(8):1225-1245.
PMID: 33200712 PMC: 8719296. DOI: 10.2174/1570159X18666201116143422.
Fei J, Gao L, Li H, Yuan Q, Li L Neural Regen Res. 2019; 14(4):673-682.
PMID: 30632508 PMC: 6352598. DOI: 10.4103/1673-5374.247471.