PMID- 28791341 OWN - NLM STAT- MEDLINE DCOM- 20180515 LR - 20180515 IS - 1791-244X (Electronic) IS - 1107-3756 (Linking) VI - 40 IP - 4 DP - 2017 Oct TI - Apocynin protects mesangial cells from lipopolysaccharide-induced inflammation by exerting heme oxygenase 1-mediated monocyte chemoattractant protein-1 suppression. PG - 1294-1301 LID - 10.3892/ijmm.2017.3090 [doi] AB - Renal failure is observed in the pathological progression of sepsis and septic shock. Renal mesangial cells (RMCs) have been implicated in renal failure as a result of producing mediators, such as monocyte chemoattractant protein-1 (MCP-1) in response to lipopolysaccharide (LPS). Mitogen-activated protein kinases (MAPKs) have been demonstrated to mediate the LPS-induced inflammatory response in RMCs. Although previous studies indicated a promising effect of apocynin in various inflammatory conditions, its antiseptic efficacy in mesangial cells remains to be clearly determined. In the present study, the anti-inflammatory effects of apocynin and its underlying mechanism were examined in LPS-challenged RMCs. Apocynin significantly inhibited nitric oxide (NO) production in LPS-challenged RMCs and the expression levels of inducible NO synthase and cyclooxygenase-2. In addition, the level of LPS-induced MCP-1 expression was significantly attenuated with apocynin. Furthermore, apocynin significantly suppressed the activation of MAPKs, such as extracellular signal-regulated kinases 1/2 and p38, but not c-Jun N-terminal kinases. Apocynin exhibited significantly increased expression of heme oxygenase-1 (HO-1) induction via nuclear factor (erythroid-derived 2)-like-2 (Nrf-2) phosphorylation. Inhibition of HO-1 with zinc protoporphyrin significantly abolished apocynin-induced suppression of MCP-1, indicating that HO-1 is significant in the suppression of MCP-1. Thus, apocynin exerts antiseptic activity via the suppression of pro-inflammatory signaling pathways and the activation of cytoprotective signaling pathways, such as HO-1/Nrf-2 in RMCs, indicating that apocynin may present as a promising candidate for in vivo evaluation of a therapeutic agent for inflammation-associated renal disorders. FAU - Bhatt, Nirmal Prasad AU - Bhatt NP AD - Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. FAU - Park, Jin-Young AU - Park JY AD - Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. FAU - Lee, Hee Jae AU - Lee HJ AD - Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. FAU - Kim, Sung-Soo AU - Kim SS AD - Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. FAU - Kwon, Yong-Soo AU - Kwon YS AD - College of Pharmacy, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. FAU - Chun, Wanjoo AU - Chun W AD - Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea. LA - eng PT - Journal Article DEP - 20170804 PL - Greece TA - Int J Mol Med JT - International journal of molecular medicine JID - 9810955 RN - 0 (Acetophenones) RN - 0 (Anti-Inflammatory Agents) RN - 0 (Ccl2 protein, rat) RN - 0 (Chemokine CCL2) RN - 0 (Lipopolysaccharides) RN - 0 (NF-E2-Related Factor 2) RN - 0 (Nfe2l2 protein, rat) RN - 0 (Protoporphyrins) RN - 15442-64-5 (zinc protoporphyrin) RN - B6J7B9UDTR (acetovanillone) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.13.39 (Nos2 protein, rat) RN - EC 1.14.14.18 (Heme Oxygenase-1) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 1) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM MH - Acetophenones/antagonists & inhibitors/*pharmacology MH - Animals MH - Anti-Inflammatory Agents/*pharmacology MH - Cell Line MH - Chemokine CCL2/antagonists & inhibitors/*genetics/metabolism MH - Cyclooxygenase 2/genetics/metabolism MH - Gene Expression Regulation MH - Heme Oxygenase-1/antagonists & inhibitors/*genetics/metabolism MH - Inflammation/prevention & control MH - Lipopolysaccharides/*antagonists & inhibitors/pharmacology MH - Mesangial Cells/cytology/*drug effects/metabolism MH - Mitogen-Activated Protein Kinase 1/genetics/metabolism MH - Mitogen-Activated Protein Kinase 3/genetics/metabolism MH - NF-E2-Related Factor 2/genetics/metabolism MH - Nitric Oxide Synthase Type II/genetics/metabolism MH - Phosphorylation/drug effects MH - Protoporphyrins/pharmacology MH - Rats MH - Signal Transduction MH - p38 Mitogen-Activated Protein Kinases/genetics/metabolism EDAT- 2017/08/10 06:00 MHDA- 2018/05/16 06:00 CRDT- 2017/08/10 06:00 PHST- 2017/03/21 00:00 [received] PHST- 2017/08/01 00:00 [accepted] PHST- 2017/08/10 06:00 [pubmed] PHST- 2018/05/16 06:00 [medline] PHST- 2017/08/10 06:00 [entrez] AID - 10.3892/ijmm.2017.3090 [doi] PST - ppublish SO - Int J Mol Med. 2017 Oct;40(4):1294-1301. doi: 10.3892/ijmm.2017.3090. Epub 2017 Aug 4.