PMID- 27289314 OWN - NLM STAT- MEDLINE DCOM- 20170222 LR - 20220513 IS - 1873-4367 (Electronic) IS - 0927-7765 (Linking) VI - 145 DP - 2016 Sep 1 TI - Biofunctionalization of titanium with bacitracin immobilization shows potential for anti-bacteria, osteogenesis and reduction of macrophage inflammation. PG - 728-739 LID - S0927-7765(16)30425-8 [pii] LID - 10.1016/j.colsurfb.2016.05.089 [doi] AB - Titanium has been widely used in the orthopedic and dental fields, however, the inert nature of Ti makes it unsuitable for application in promoting bone cell growth,osteogenic differentiation and antibacterial ability. The aims of the current study were to investigate the antimicrobial activity and biofunction of the polypeptide antibiotic bacitracin, and obtain a multi-biofunctional titanium implant by covalently-immobilizing titanium with the bacitracin. The results showed that the bacitracin possessed low minimum inhibitory concentration (MIC) to both Staphylococcus aureus and Methicillin-resistant Staphylococcus aureus (MRSA), with the non-cytotoxicity concentration up to 500mug/mL to human bone marrow mesenchymal stem cells (hBMSCs), furthermore, the bacitracin could improve the osteogenic differentiation of hBMSCs. The results of Scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) indicated that bacitracin had been covalently immobilized on the surface of titanium. Immobilized bacitracin could improve the hydrophilic of immobilized titanium. The results of antimicrobial assay demonstrated that the covalently-immobilized bacitracin also had excellent antimicrobial property, and the bacitracin immobilized titanium could inhibit bacterial adhesion and colonization. The results of cell biology experiments proved that the bacitracin immobilized titanium could improve hBMSCs' adhesion, proliferation and osteogenic differentiation. We also found that the macrophages were difficult to spread or activate on the surface of bacitracin immobilized titanium, and the secretion of inflammatory factors had been inhibited. In conclusion, the novel bacitracin immobilized titanium has multi-biofunctions including outstanding antibacterial properties, excellent cell biology performance, and restraining inflammation, which has exciting application prospect. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Nie, Bin'en AU - Nie B AD - Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, PR China. FAU - Ao, Haiyong AU - Ao H AD - Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, PR China. FAU - Zhou, Jianliang AU - Zhou J AD - Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, PR China. FAU - Tang, Tingting AU - Tang T AD - Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, PR China. FAU - Yue, Bing AU - Yue B AD - Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, PR China. Electronic address: advbmp2@163.com. LA - eng PT - Journal Article DEP - 20160531 PL - Netherlands TA - Colloids Surf B Biointerfaces JT - Colloids and surfaces. B, Biointerfaces JID - 9315133 RN - 1405-87-4 (Bacitracin) RN - D1JT611TNE (Titanium) SB - IM EIN - Colloids Surf B Biointerfaces. 2022 Aug;216:112550. PMID: 35561633 MH - Bacitracin/adverse effects/*chemistry/*pharmacology MH - Bone Marrow Cells/drug effects MH - Cell Differentiation/drug effects MH - Cells, Cultured MH - Humans MH - Inflammation/*metabolism MH - Macrophages/drug effects/*metabolism MH - Mesenchymal Stem Cells/cytology/drug effects MH - Methicillin-Resistant Staphylococcus aureus/drug effects MH - Microscopy, Electrochemical, Scanning MH - Osteogenesis/drug effects MH - Photoelectron Spectroscopy MH - Staphylococcus aureus/drug effects MH - Titanium/*chemistry OTO - NOTNLM OT - Anti-bacteria OT - Bacitracin OT - Biofunctionalization OT - Macrophage inflammation OT - Osteogenesis OT - Titanium EDAT- 2016/06/13 06:00 MHDA- 2017/02/23 06:00 CRDT- 2016/06/13 06:00 PHST- 2016/01/14 00:00 [received] PHST- 2016/05/10 00:00 [revised] PHST- 2016/05/28 00:00 [accepted] PHST- 2016/06/13 06:00 [entrez] PHST- 2016/06/13 06:00 [pubmed] PHST- 2017/02/23 06:00 [medline] AID - S0927-7765(16)30425-8 [pii] AID - 10.1016/j.colsurfb.2016.05.089 [doi] PST - ppublish SO - Colloids Surf B Biointerfaces. 2016 Sep 1;145:728-739. doi: 10.1016/j.colsurfb.2016.05.089. Epub 2016 May 31.