PMID- 23483217 OWN - NLM STAT- MEDLINE DCOM- 20131203 LR - 20211021 IS - 1420-908X (Electronic) IS - 1023-3830 (Linking) VI - 62 IP - 6 DP - 2013 Jun TI - Effect of chlorogenic acid on LPS-induced proinflammatory signaling in hepatic stellate cells. PG - 581-7 LID - 10.1007/s00011-013-0610-7 [doi] AB - OBJECTIVE AND DESIGN: This study was aimed at investigating the effect of chlorogenic acid (CGA) on lipopolysaccharide (LPS)-induced proinflammatory signaling in hepatic stellate cells (HSCs). METHODS: An immortalized rat HSC line was cultured in vitro and treated with LPS in the absence or presence of CGA. Reactive oxygen species (ROS) production in the HSCs was monitored by flow cytometer using DCFH-DA. The protein expression levels of toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), nuclear factor-kappaB (NF-kappaB), and p-IkappaB-alpha were determined by Western blot. The mRNA expression levels of TLR4, MyD88, monocyte chemotactic protein 1(MCP-1), and interleukin 6 (IL-6) were detected by RT-PCR. The levels of MCP-1 and IL-6 in the culture supernatant of HSCs were measured by ELISA. RESULTS: CGA had no effect on expression of TLR4 and MyD88. However, the treatment of CGA can inhibit LPS-induced production of ROS in HSCs. Meanwhile, CGA can inhibit LPS-induced nuclear translocation of NF-kappaB and IkappaB-alpha phosphorylation in HSCs, as well as NAC (a ROS scavenger). The mRNA expression and the levels of MCP-1 and IL-6 in the culture supernatant of the HSCs in this study were elevated by LPS stimulation and inhibited by CGA treatment, as well as NAC and PDTC (a NF-kappaB inhibitor). CONCLUSION: Our results indicate that CGA can efficiently inhibit LPS-induced proinflammatory responses in HSCs and the anti-inflammatory effect may be due to the inhibition of LPS/ROS/NF-kappaB signaling pathway. FAU - Shi, Haitao AU - Shi H AD - Department of Gastroenterology, Second Affiliate Hospital of Xi'an Jiao Tong University, No. 157 Xiwu Road, Xi'an 710004, Shaanxi, China. shihaitao7@163.com FAU - Dong, Lei AU - Dong L FAU - Dang, Xiaoyan AU - Dang X FAU - Liu, Yaping AU - Liu Y FAU - Jiang, Jiong AU - Jiang J FAU - Wang, Yan AU - Wang Y FAU - Lu, Xiaolan AU - Lu X FAU - Guo, Xiaoyan AU - Guo X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130313 PL - Switzerland TA - Inflamm Res JT - Inflammation research : official journal of the European Histamine Research Society ... [et al.] JID - 9508160 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Ccl2 protein, rat) RN - 0 (Chemokine CCL2) RN - 0 (I-kappa B Proteins) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharides) RN - 0 (NF-kappa B) RN - 0 (Nfkbia protein, rat) RN - 0 (Reactive Oxygen Species) RN - 0 (Tlr4 protein, rat) RN - 0 (Toll-Like Receptor 4) RN - 139874-52-5 (NF-KappaB Inhibitor alpha) RN - 318ADP12RI (Chlorogenic Acid) SB - IM MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Cell Line MH - Chemokine CCL2/genetics/immunology MH - Chlorogenic Acid/*pharmacology MH - Hepatic Stellate Cells/*drug effects/immunology MH - I-kappa B Proteins/immunology MH - Inflammation/chemically induced/metabolism MH - Interleukin-6/genetics/immunology MH - Lipopolysaccharides MH - NF-KappaB Inhibitor alpha MH - NF-kappa B/immunology MH - Rats MH - Reactive Oxygen Species/immunology MH - Toll-Like Receptor 4/genetics/immunology EDAT- 2013/03/14 06:00 MHDA- 2013/12/16 06:00 CRDT- 2013/03/14 06:00 PHST- 2012/08/09 00:00 [received] PHST- 2013/02/26 00:00 [accepted] PHST- 2013/01/30 00:00 [revised] PHST- 2013/03/14 06:00 [entrez] PHST- 2013/03/14 06:00 [pubmed] PHST- 2013/12/16 06:00 [medline] AID - 10.1007/s00011-013-0610-7 [doi] PST - ppublish SO - Inflamm Res. 2013 Jun;62(6):581-7. doi: 10.1007/s00011-013-0610-7. Epub 2013 Mar 13.