Background:Chronic pain is defined as pain that lasts for three months or even more.Over 25%of the global population suffers from chronic pain.Tong-luo Qu-tong(TLQT)Plaster is clinically used to treat arthritis.Howeve...Background:Chronic pain is defined as pain that lasts for three months or even more.Over 25%of the global population suffers from chronic pain.Tong-luo Qu-tong(TLQT)Plaster is clinically used to treat arthritis.However,its ability to treat chronic pain remains largely unknown.Methods:In this study,we explored the molecular mechanism of TLQT plaster in relieving chronic muscle pain by combining network pharmacology and RNA-seq analysis.We also applied the Elisa and the RT-qPCR.Results:We found 447 targets in TLQT and 13,599 targets related to chronic pain disease.And 419 intersecting targets were obtained,which mainly enrich the IL-17 signaling pathway,TNF signaling pathway,and Th17 cell differentiation pathway.Further,we constructed the SD rat model of chronic pain.The results of Von Frey Hair Test showed that the relief of muscle pain TLQT treated group was twice as much as that in the model group.The hot plate test results showed that the time of lifting the foot was 1.3 times as much as that of the model group.Moreover,TLQT effectively reduced the inflammation in rat muscle.With RNA-seq analysis,230 differentially expressed genes were collected.The RT-qPCR results indicated that the mRNA expression level of NCF1,CXCL10,and ICAM1 all promoted in the model group,and then decreased significantly in the TLQT treated group.The ELISA results performed that the level of IL-1βand IL-6 in TLQT group high dose group was reduced by about 1.6-fold,and for TNF-α,it was reduced by about 2.6-fold compared with the model group.Immunohistochemistry assay showed that the expression level of CXCL10 and ICAM1 was both up-regulated in the model group and down-regulated in the TLQT group.Conclusion:TLQT plaster reduces chronic muscle pain by inhibiting the expression of NCF1,CXCL10,and ICAM1 and reducing the level of muscle tissue inflammation.展开更多
文摘Background:Chronic pain is defined as pain that lasts for three months or even more.Over 25%of the global population suffers from chronic pain.Tong-luo Qu-tong(TLQT)Plaster is clinically used to treat arthritis.However,its ability to treat chronic pain remains largely unknown.Methods:In this study,we explored the molecular mechanism of TLQT plaster in relieving chronic muscle pain by combining network pharmacology and RNA-seq analysis.We also applied the Elisa and the RT-qPCR.Results:We found 447 targets in TLQT and 13,599 targets related to chronic pain disease.And 419 intersecting targets were obtained,which mainly enrich the IL-17 signaling pathway,TNF signaling pathway,and Th17 cell differentiation pathway.Further,we constructed the SD rat model of chronic pain.The results of Von Frey Hair Test showed that the relief of muscle pain TLQT treated group was twice as much as that in the model group.The hot plate test results showed that the time of lifting the foot was 1.3 times as much as that of the model group.Moreover,TLQT effectively reduced the inflammation in rat muscle.With RNA-seq analysis,230 differentially expressed genes were collected.The RT-qPCR results indicated that the mRNA expression level of NCF1,CXCL10,and ICAM1 all promoted in the model group,and then decreased significantly in the TLQT treated group.The ELISA results performed that the level of IL-1βand IL-6 in TLQT group high dose group was reduced by about 1.6-fold,and for TNF-α,it was reduced by about 2.6-fold compared with the model group.Immunohistochemistry assay showed that the expression level of CXCL10 and ICAM1 was both up-regulated in the model group and down-regulated in the TLQT group.Conclusion:TLQT plaster reduces chronic muscle pain by inhibiting the expression of NCF1,CXCL10,and ICAM1 and reducing the level of muscle tissue inflammation.
