Abstract:
:Total glucosides of paeony (TGP) is a bioactive compound extracted from paeony roots and has been widely used to ameliorate inflammation in several autoimmune and inflammatory diseases. However, the anti-inflammatory effect of TGP on oral lichen planus (OLP), a chronic inflammatory oral condition characterized by T-cell infiltration and abnormal epithelial keratinization cycle remains unclear. In this study, we found that TLR4 was highly expressed and activation of the NF-κB signaling pathway was obviously observed in the OLP tissues. Moreover, there was significant higher mRNA expression of inflammatory cytokines interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in OLP keratinocytes than normal oral epithelial keratinocytes. With the help of the cell culture model by stimulating the keratinocyte HaCaT cells with lipopolysaccharides (LPS), we mimicked the local inflammatory environment of OLP. And we further confirmed that TGP could inhibit LPS-induced production of IL-6 and TNF-α in HaCaT cells via a dose-dependent manner. TGP treatment decreased the phosphorylation of IκBα and NF-κB p65 proteins, thus leading to less nuclear translocation of NF-κB p65 in HaCaT cells. Therefore, our data suggested that TGP may be a new potential candidate for the therapy of OLP.
journal_name
Int Immunopharmacoljournal_title
International immunopharmacologyauthors
Wang Y,Zhang H,Du G,Wang Y,Cao T,Luo Q,Chen J,Chen F,Tang Gdoi
10.1016/j.intimp.2016.04.010subject
Has Abstractpub_date
2016-07-01 00:00:00pages
67-72eissn
1567-5769issn
1878-1705pii
S1567-5769(16)30144-8journal_volume
36pub_type
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