PMID- 30321547 OWN - NLM STAT- MEDLINE DCOM- 20200217 LR - 20200217 IS - 1520-6017 (Electronic) IS - 0022-3549 (Linking) VI - 108 IP - 1 DP - 2019 Jan TI - A Novel Approach via Surface Modification of Degradable Polymers With Adhesive DOPA-IGF-1 for Neural Tissue Engineering. PG - 551-562 LID - S0022-3549(18)30606-3 [pii] LID - 10.1016/j.xphs.2018.10.008 [doi] AB - The highly damaging state of spinal cord injuries has provided much inspiration for the design of surface modification of the implants that can promote nerve regeneration and functional reconstruction. DOPA-IGF-1, a new recombinant protein designed in our previous study, exhibited strong binding affinity to titanium and significantly enhanced the growth of NIH3T3 cells on the surface of titanium with the same biological activity as IGF-1. In this article, surface modification of poly(lactide-co-glycolide) (PLGA) films with recombinant DOPA-IGF-1 was performed to promote the paracrine activity of human umbilical cord mesenchymal stem cells (hUCMSCs) by secreting neurotrophic factors. DOPA-IGF-1 exhibited the strongest binding ability to PLGA films than commercial IGF-1 and nonhydroxylated YKYKY-IGF-1. In vitro cultures of hUCMSCs on the modified PLGA films showed that DOPA-IGF-1@PLGA substrates significantly improved the proliferation, adhesion, and neurotrophic factors secretion of hUCMSCs, especially for nerve growth factor, as confirmed by qRT-PCR and western blot analysis. Subsequently, the acquired neurotrophic factors secreted by the hUCMSCs cultured on the DOPA-IGF-1@PLGA films obviously enhanced neurite outgrowth of PC12 cells. Taken together, PLGA substrates with DOPA-IGF-1 immobilization is a promising platform for neural tissue engineering via neurotrophic factors secretion from MSCs and should be further tested in vivo. CI - Copyright (c) 2019. Published by Elsevier Inc. FAU - Zhang, Yi AU - Zhang Y AD - Department of Orthopaedics, The Second Hospital, Jilin University, Changchun 130041, PR China; Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China. FAU - Wang, Zongliang AU - Wang Z AD - Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China. FAU - Wang, Yu AU - Wang Y AD - Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China. FAU - Li, Linlong AU - Li L AD - Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China. FAU - Wu, Zhenxu AU - Wu Z AD - School of Pharmaceutical Sciences, Jilin University, Changchun 130021, PR China. FAU - Ito, Yoshihiro AU - Ito Y AD - Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science 2-1 Hirosawa, Wako-shi, Saitama 351-0198 Japan. FAU - Yang, Xiaoyu AU - Yang X AD - Department of Orthopaedics, The Second Hospital, Jilin University, Changchun 130041, PR China. Electronic address: yangxiaoyu88@sina.com. FAU - Zhang, Peibiao AU - Zhang P AD - Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; Institute of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China. Electronic address: zhangpb@ciac.ac.cn. LA - eng PT - Journal Article DEP - 20181012 PL - United States TA - J Pharm Sci JT - Journal of pharmaceutical sciences JID - 2985195R RN - 0 (Adhesives) RN - 0 (Polymers) RN - 63-84-3 (Dihydroxyphenylalanine) RN - 67763-96-6 (Insulin-Like Growth Factor I) SB - IM MH - Adhesives/*chemistry MH - Animals MH - Cell Line MH - Cell Line, Tumor MH - Cells, Cultured MH - Dihydroxyphenylalanine/*chemistry MH - Humans MH - Insulin-Like Growth Factor I/*chemistry/*pharmacology MH - Mice MH - NIH 3T3 Cells MH - Neurites/*drug effects MH - PC12 Cells MH - Polymers/*chemistry MH - Rats MH - Tissue Engineering/methods OTO - NOTNLM OT - DOPA-IGF-1 OT - hUCMSCs OT - neural regeneration applications OT - neurotrophic factors EDAT- 2018/10/16 06:00 MHDA- 2020/02/18 06:00 CRDT- 2018/10/16 06:00 PHST- 2018/07/18 00:00 [received] PHST- 2018/09/26 00:00 [revised] PHST- 2018/10/05 00:00 [accepted] PHST- 2018/10/16 06:00 [pubmed] PHST- 2020/02/18 06:00 [medline] PHST- 2018/10/16 06:00 [entrez] AID - S0022-3549(18)30606-3 [pii] AID - 10.1016/j.xphs.2018.10.008 [doi] PST - ppublish SO - J Pharm Sci. 2019 Jan;108(1):551-562. doi: 10.1016/j.xphs.2018.10.008. Epub 2018 Oct 12.