PMID- 32253395 OWN - NLM STAT- MEDLINE DCOM- 20210430 LR - 20210430 IS - 2050-7518 (Electronic) IS - 2050-750X (Linking) VI - 8 IP - 18 DP - 2020 May 14 TI - A novel elastic and controlled-release poly(ether-ester-urethane)urea scaffold for cartilage regeneration. PG - 4106-4121 LID - 10.1039/c9tb02754h [doi] AB - In the tissue engineering of cartilage, scaffolds with appropriate elasticity and controlled-release properties are essential. Herein, we synthesized a poly(ether-ester-urethane)urea scaffold with a pendant amino group (PEEUUN) through a de-protection process from PEEUU-Boc polymers and grafted kartogenin (KGN) onto the PEEUUN scaffolds (PEEUUN-KGN). Characterization, performance tests, scaffold biocompatibility analysis, and chondrogenesis evaluation both in vitro and in vivo were conducted. The results revealed that the PEEUUN-KGN scaffolds were degradable and three-dimensional (3D) with interconnected pores, and possessed good elasticity, as well as excellent cytocompatibility. Meanwhile, KGN on the PEEUUN-KGN scaffolds underwent stable sustained release for a long time and promoted human umbilical cord mesenchymal stem cells (HUCMSCs) to differentiate into chondrocytes in vitro, thus enhancing cartilage regeneration in vivo. In conclusion, the present PEEUUN-KGN scaffolds would have application potential for cartilage tissue engineering. FAU - Chen, Chang'an AU - Chen C AD - Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China. jzzhao@sjtu.edu.cn xyyan@sjtu.edu.cn zhutonghe@sjtu.edu.cn. FAU - Huang, Kai AU - Huang K FAU - Zhu, Jingjing AU - Zhu J FAU - Bi, Yikang AU - Bi Y FAU - Wang, Liren AU - Wang L FAU - Jiang, Jia AU - Jiang J FAU - Zhu, Tonghe AU - Zhu T FAU - Yan, Xiaoyu AU - Yan X FAU - Zhao, Jinzhong AU - Zhao J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200407 PL - England TA - J Mater Chem B JT - Journal of materials chemistry. B JID - 101598493 RN - 0 (Biocompatible Materials) RN - 0 (Delayed-Action Preparations) RN - 0 (Esters) RN - 0 (Ethers) RN - 0 (Polymers) RN - 3IN71E75Z5 (Urethane) RN - 8W8T17847W (Urea) SB - IM MH - Animals MH - Biocompatible Materials/chemical synthesis/*chemistry MH - Cells, Cultured MH - Delayed-Action Preparations MH - Elastic Cartilage/*chemistry MH - Esters/chemical synthesis/chemistry MH - Ethers/chemical synthesis/chemistry MH - Humans MH - Molecular Structure MH - Particle Size MH - Polymers/chemical synthesis/*chemistry MH - Porosity MH - Rabbits MH - Surface Properties MH - *Tissue Engineering MH - Tissue Scaffolds/*chemistry MH - Urea/analogs & derivatives/*chemistry MH - Urethane/chemical synthesis/chemistry EDAT- 2020/04/08 06:00 MHDA- 2021/05/01 06:00 CRDT- 2020/04/08 06:00 PHST- 2020/04/08 06:00 [pubmed] PHST- 2021/05/01 06:00 [medline] PHST- 2020/04/08 06:00 [entrez] AID - 10.1039/c9tb02754h [doi] PST - ppublish SO - J Mater Chem B. 2020 May 14;8(18):4106-4121. doi: 10.1039/c9tb02754h. Epub 2020 Apr 7.