PMID- 24123855 OWN - NLM STAT- MEDLINE DCOM- 20150330 LR - 20211021 IS - 1552-4965 (Electronic) IS - 1549-3296 (Print) IS - 1549-3296 (Linking) VI - 102 IP - 9 DP - 2014 Sep TI - Mutant monocyte chemoattractant protein 1 protein attenuates migration of and inflammatory cytokine release by macrophages exposed to orthopedic implant wear particles. PG - 3291-7 LID - 10.1002/jbm.a.34981 [doi] AB - Wear particles generated from total joint replacements can stimulate macrophages to release chemokines, such as monocyte chemoattractant protein 1 (MCP-1), which is the most important chemokine regulating systemic and local cell trafficking and infiltration of monocyte/macrophages in chronic inflammation. One possible strategy to curtail the adverse events associated with wear particles is to mitigate migration and activation of monocyte/macrophages. The purpose of this study is to modulate the adverse effects of particulate biomaterials and inflammatory stimuli such as endotoxin by interfering with the biological effects of the chemokine MCP-1. In the current study, the function of MCP-1 was inhibited by the mutant MCP-1 protein called 7ND, which blocks its receptor, the C-C chemokine receptor type 2 (CCR2) on macrophages. Addition of 7ND decreased MCP-1-induced migration of THP-1 cells in cell migration experiments in a dose-dependent manner. Conditioned media from murine macrophages exposed to clinically relevant polymethylmethacrylate (PMMA) particles with/without endotoxin [lipopolysaccharide (LPS)] had a chemotactic effect on human macrophages, which was decreased dramatically by 7ND. 7ND demonstrated no adverse effects on the viability of macrophages, and the capability of mesenchymal stem cells (MSCs) to form bone at the doses tested. Finally, proinflammatory cytokine production was mitigated when macrophages were exposed to PMMA particles with/without LPS in the presence of 7ND. Our studies confirm that the MCP-1 mutant protein 7ND can decrease macrophage migration and inflammatory cytokine release without adverse effects at the doses tested. Local delivery of 7ND at the implant site may provide a therapeutic strategy to diminish particle-associated periprosthetic inflammation and osteolysis. CI - (c) 2013 Wiley Periodicals, Inc. FAU - Yao, Zhenyu AU - Yao Z AD - Department of Orthopaedic Surgery, Stanford University, Stanford, California. FAU - Keeney, Michael AU - Keeney M FAU - Lin, Tzu-Hua AU - Lin TH FAU - Pajarinen, Jukka AU - Pajarinen J FAU - Barcay, Katherine AU - Barcay K FAU - Waters, Heather AU - Waters H FAU - Egashira, Kensuke AU - Egashira K FAU - Yang, Fan AU - Yang F FAU - Goodman, Stuart AU - Goodman S LA - eng GR - R01 AR055650/AR/NIAMS NIH HHS/United States GR - R01 AR063717/AR/NIAMS NIH HHS/United States GR - 2R01AR055650-05/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20131120 PL - United States TA - J Biomed Mater Res A JT - Journal of biomedical materials research. Part A JID - 101234237 RN - 0 (Chemokine CCL2) RN - 0 (Cytokines) RN - 9011-14-7 (Polymethyl Methacrylate) SB - IM MH - Animals MH - Cell Line MH - Cell Survival MH - Chemokine CCL2/*genetics/immunology MH - Chemotaxis MH - Cytokines/*immunology MH - Humans MH - Inflammation/*etiology/genetics/immunology MH - Macrophages/cytology/*immunology/metabolism MH - Mice MH - Mutation MH - Polymethyl Methacrylate/*adverse effects MH - Prostheses and Implants/*adverse effects PMC - PMC4035458 MID - NIHMS581336 OTO - NOTNLM OT - chemotaxis OT - cytokines OT - inflammation OT - macrophages OT - particles EDAT- 2013/10/15 06:00 MHDA- 2015/03/31 06:00 PMCR- 2014/09/01 CRDT- 2013/10/15 06:00 PHST- 2013/05/03 00:00 [received] PHST- 2013/09/11 00:00 [revised] PHST- 2013/09/25 00:00 [accepted] PHST- 2013/10/15 06:00 [entrez] PHST- 2013/10/15 06:00 [pubmed] PHST- 2015/03/31 06:00 [medline] PHST- 2014/09/01 00:00 [pmc-release] AID - 10.1002/jbm.a.34981 [doi] PST - ppublish SO - J Biomed Mater Res A. 2014 Sep;102(9):3291-7. doi: 10.1002/jbm.a.34981. Epub 2013 Nov 20.