PMID- 29773098 OWN - NLM STAT- MEDLINE DCOM- 20181127 LR - 20181127 IS - 1007-8738 (Print) IS - 1007-8738 (Linking) VI - 34 IP - 3 DP - 2018 Mar TI - [Polydatin inhibits cell proliferation and expressions of inflammatory cytokines in THP-1 cells induced by ox-LDL via up-regulating SIRT1]. PG - 193-198 AB - Objective To investigate the effects of polydatin on cell proliferation and cytokine expression in THP-1 monocyte-derived macrophages (MDMs) induced by oxidized low-density lipoprotein (ox-LDL), and the possible mechanisms. Methods MDMs were divided into the control group (only treated with ordinary culture medium), ox-LDL group (treated wtih 80 mumol/L ox-LDL for 24 hours), polydatin treatment group (treated with 100 mumol/L polydatin for 2 hours prior to the treatment with 80 mumol/L ox-LDL for 24 hours) and EX-527 treatment group (treated with 10 mumol/L SIRT1 inhibitor EX-527 for 2 hours prior to the treatment with ox-LDL and polydatin). The effects of polydatin on ox-LDL-induced oxidative proliferation and cytokine expression in MDMs were evaluated by CCK-8 assay. Spectrofluorometry was used to determine the intracellular level of superoxide dismutase (SOD) and malondialdehyde (MDA). DCFH-DA loading was used to detect the content of reactive oxidative species (ROS). The levels of silent mating type information regulator 1 (SIRT1), monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) were examined by real-time quantitative PCR and Western blotting. Results Polydatin (100 mumol/L) inhibited the proliferation of MDMs induced by ox-LDL, decreased the levels of MDA and ROS, whereas the level of SOD increased. The mRNA and protein levels of SIRT1 in MDMs were inhibited by ox-LDL, whereas the expressions of MCP-1, TNF-alpha and IL-6 were promoted. Pre-treatment with EX-527 attenuated the inhibitory effects of polydatin on the proliferation of MDMs, inhibited the expressions of SIRT1, promoted the expressions of MCP-1, TNF-alpha and IL-6. Conclusion Polydatin up-regulates the expression of SIRT1 to increase the ability of anti-macrophage proliferation, reduce the level of the intracellular ROS induced by ox-LDL, and inhibit the expression of inflammatory cytokines. FAU - Ma, Yi AU - Ma Y AD - Department of Cardiology, Affiliated Hospital, Zunyi Medical University, Zunyi 563000, China. *Corresponding author, E-mail: mayimayizmc@126.com. FAU - Ruan, Yunjun AU - Ruan Y AD - Department of Cardiology, Guangzhou Military General Hospital, Guangzhou 510010, China. FAU - Wang, Yuyan AU - Wang Y AD - Deartment of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. FAU - Wu, Saizhu AU - Wu S AD - Deartment of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. LA - chi PT - Journal Article PL - China TA - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi JT - Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology JID - 101139110 RN - 0 (Chemokine CCL2) RN - 0 (Cytokines) RN - 0 (Glucosides) RN - 0 (Interleukin-6) RN - 0 (Lipoproteins, LDL) RN - 0 (Reactive Oxygen Species) RN - 0 (Stilbenes) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (oxidized low density lipoprotein) RN - 4Y8F71G49Q (Malondialdehyde) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 3.5.1.- (SIRT1 protein, human) RN - EC 3.5.1.- (Sirtuin 1) RN - XM261C37CQ (polydatin) SB - IM MH - Cell Proliferation/*drug effects MH - Chemokine CCL2/genetics/metabolism MH - Cytokines/genetics/*metabolism MH - Glucosides/*pharmacology MH - Humans MH - Interleukin-6/genetics/metabolism MH - Lipoproteins, LDL/*pharmacology MH - Macrophages/cytology/*drug effects/metabolism MH - Malondialdehyde/metabolism MH - Oxidative Stress/drug effects MH - Reactive Oxygen Species/metabolism MH - Sirtuin 1/genetics/*metabolism MH - Stilbenes/*pharmacology MH - Superoxide Dismutase/metabolism MH - THP-1 Cells MH - Tumor Necrosis Factor-alpha/genetics/metabolism MH - Up-Regulation EDAT- 2018/05/19 06:00 MHDA- 2018/11/28 06:00 CRDT- 2018/05/19 06:00 PHST- 2018/05/19 06:00 [entrez] PHST- 2018/05/19 06:00 [pubmed] PHST- 2018/11/28 06:00 [medline] PST - ppublish SO - Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2018 Mar;34(3):193-198.