PMID- 23815460 OWN - NLM STAT- MEDLINE DCOM- 20150918 LR - 20140211 IS - 1365-2591 (Electronic) IS - 0143-2885 (Linking) VI - 47 IP - 3 DP - 2014 Mar TI - Involvement of SDF-1 and monocyte chemoattractant protein-1 in hydrogen peroxide-induced extracellular matrix degradation in human dental pulp cells. PG - 298-308 LID - 10.1111/iej.12147 [doi] AB - AIM: To determine whether chemokines such as SDF-1 and monocyte chemoattractant protein-1 (MCP-1) are responsible for hydrogen peroxide (H2 O2 )-induced extracellular matrix (ECM) degradation and to identify the underlying mechanism in human dental pulp cells (HDPCs). METHOD: Human dental pulp cells were exposed to 0.4 mmol H2 O2 for 48 h. mRNA expression and protein expression were examined by RT-PCR and Western blot analysis, respectively. The mRNA expression of chemokine (SDF-1 and MCP-1), their receptors (CXCR4 and CXCR2) and extracellular matrix proteins was evaluated by reverse transcriptase-polymerase chain reaction. The production of SDF-1, MCP-1, CXCR4 and CCR2 in the culture medium was determined by enzyme-linked immunosorbent assay. Signal transduction pathway was examined by Western blotting. RESULTS: Hydrogen peroxide provoked the activation of MCP-1 and SDF-1 mRNA and their respective receptors, CXCR4 and CXCR2. H2 O2 treatment concomitantly downregulated the expression of ECM molecules, such as type I collagen, elastin and fibronectin, and upregulated the mRNA expression of matrix metalloproteinase-1 (MMP-1), MMP-2, MMP-8 and MMP-9. Hydrogen peroxide-induced ECM degradation and MMP upregulation were blocked by neutralizing antibodies and siRNAs directed against SDF-1 and MCP-1. Inhibition of SDF-1 and MCP-1 blocked the H2 O2 -induced activation of Akt, p38, ERK and NF-kB. CONCLUSION: Inhibition of SDF and MCP-1 is a potent component of reducing release reactive oxygen species-induced ECM degradation in HDPCs and may play an important role in pulpal and periapical inflammation. CI - (c) 2013 International Endodontic Journal. Published by John Wiley & Sons Ltd. FAU - Kim, D-S AU - Kim DS AD - Department of Conservative Dentistry, School of Dentistry and Institute of Oral Biology, Kyung Hee University, Seoul, Korea. FAU - Kang, S I AU - Kang SI FAU - Lee, S-Y AU - Lee SY FAU - Noh, K-T AU - Noh KT FAU - Kim, E-C AU - Kim EC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130701 PL - England TA - Int Endod J JT - International endodontic journal JID - 8004996 RN - 0 (CXCL12 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Chemokine CXCL12) RN - 0 (RNA, Messenger) RN - 0 (Reactive Oxygen Species) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 3.4.24.- (Matrix Metalloproteinases) MH - Blotting, Western MH - Cells, Cultured MH - Chemokine CCL2/*metabolism MH - Chemokine CXCL12/*metabolism MH - Dental Pulp/*cytology MH - Enzyme-Linked Immunosorbent Assay MH - Extracellular Matrix/*drug effects/*metabolism MH - Humans MH - Hydrogen Peroxide/*pharmacology MH - Matrix Metalloproteinases/metabolism MH - RNA, Messenger/metabolism MH - Reactive Oxygen Species/metabolism MH - Reverse Transcriptase Polymerase Chain Reaction MH - Signal Transduction OTO - NOTNLM OT - SDF-1 OT - extracellular matrix OT - human dental pulp cells OT - hydrogen peroxide OT - matrix metalloprotein OT - monocyte chemoattractant protein-1 EDAT- 2013/07/03 06:00 MHDA- 2015/09/19 06:00 CRDT- 2013/07/03 06:00 PHST- 2012/11/28 00:00 [received] PHST- 2013/06/03 00:00 [accepted] PHST- 2013/07/03 06:00 [entrez] PHST- 2013/07/03 06:00 [pubmed] PHST- 2015/09/19 06:00 [medline] AID - 10.1111/iej.12147 [doi] PST - ppublish SO - Int Endod J. 2014 Mar;47(3):298-308. doi: 10.1111/iej.12147. Epub 2013 Jul 1.