摘要
Construct expression vectors of pCMV-DR4-HA and pCMV-PRMT5-Flag,and transfect them into HEK293 cells to identify the interaction between TRAIL-R1 and PRMT5 and the molecular mechanism underlying DR4-mediated inhibition of chemokine CCL20 release via TRAIL receptor 1(DR4).Inflammatory cytokine was detected by RT-PCR and ELISA after TRAIL-R1 and/or PRMT5 transfection,respectively.NF-κB activity was detected by Dual Luciferase Reporter Gene Assay.ERK1/2 phosphorylation was analyzed by Western blot.PRMT5 could inhibit DR4-activated NF-κB activity and ERK1/2 phosphorylation.PRMT5 could inhibit NF-κB activition,ERK1/2 phosphorylation as well as CCL20 secretion via binding with DR4 in HEK293 cell,suggesting that PRMT5 may involve in DR4 dependent immune regulation.
Construct expression vectors of pCMV-DR4-HA and pCMV-PRMT5-Flag, and transfect them into HEK293 cells to identify the interaction between TRAIL-R1 and PRMT5 and the molecular mechanism underlying DR4-mediated inhibition of chemokine CCL20 release via TRAIL receptor 1 （DR4）. Inflammatory cytokine was detected by RT-PCR and ELISA after TRAIL-R1 and/or PRMT5 transfection, respectively. NF-κB activity was detected by Dual Luciferase Reporter Gene Assay. ERK1/2 phosphorylation was analyzed by Western blot. PRMT5 could inhibit DR4-activated NF-κB activity and ERK1/2 phosphorylation. FRMT5 could inhibit NF-κB activition, ERK1/2 phosphorylation as well as CCL20 secretion via binding with DR4 in HEK293 cell, sug- gesting that PRMT5 may involve in DR4 dependent immune regulation.
基金
supported by the National Natural Science Foundation of China (81001315 and 30972684)
the National Basic Research Program of China (2007CB507404)
