Protocatechuic acid as an inhibitor of the JNK/CXCL1/CXCR2 pathway relieves neuropathic pain in CCI rats
| Autor: | Yue-Feng Zhao, Hong-Xia Chang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Medicine (General)
Chemokine MAP Kinase Signaling System Chemokine CXCL1 Protocatechuic acid Pharmacology medicine.disease_cause Receptors Interleukin-8B R5-920 Hydroxybenzoates medicine Animals CXC chemokine receptors biology business.industry JNK Mitogen-Activated Protein Kinases General Medicine medicine.disease JNK/CXCL1/CXCR2 signaling pathway Rats nervous system diseases CXCL1 Hyperalgesia TNF-α Neuropathic pain Neuralgia biology.protein Tumor necrosis factor alpha chronic neuropathic pain Sciatic nerve business Oxidative stress |
| Zdroj: | Bosnian Journal of Basic Medical Sciences (2021) |
| ISSN: | 1840-4812 1512-8601 |
| DOI: | 10.17305/bjbms.2021.5928 |
| Popis: | Emerging evidence has shown that protocatechuic acid (PCA) has antioxidant and anti-inflammatory effects. Evidence suggests that PCA can alleviate the injury of sciatic nerve, while the mechanism of its therapeutic effect on neuralgia remains unknown. Chromium bowel ligation was used in vivo to establish a chronic constriction injury (CCI) rat model to induce sciatic nerve pain. Subsequently, two doses of PCA were used to treat CCI rats. In vitro, 10 ng/mL TNF-α was used to stimulate glial satellite cells derived from the dorsal root ganglia (DRG) L4-L6 of the sciatic nerve to simulate sciatic nerve pain. PCA relieved mechanical allodynia and thermal hyperalgesia in CCI rats. CCK-8 assay revealed that PCA inhibited the proliferation of glial satellite cells induced by TNF-α. Moreover, ELISA demonstrated that PCA could improve the inflammatory response of rats caused by CCI and cells induced by TNF-α. Next, RT-qPCR and Western blot assays showed that PCA blocked the c-Jun N-terminal kinase/the chemokine ligand 1/CXC chemokine receptor 2 (JNK/CXCL1/CXCR2) pathway by inhibiting CXCL1 levels in cells induced by TNF-α and DRG in CCI rats. In conclusion, PCA can alleviate neuropathic pain in CCI rats and improve oxidative stress by inhibiting the JNK/CXCL1/CXCR2 signaling pathway. Thus, these findings provide a new perspective for the treatment of neuropathic pain caused by CCI. |
| Databáze: | OpenAIRE |
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