PMID- 29899552 OWN - NLM STAT- MEDLINE DCOM- 20191021 LR - 20191022 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 8 IP - 1 DP - 2018 Jun 13 TI - The Radiated Deep-frozen Xenogenic Meniscal Tissue Regenerated the Total Meniscus with Chondroprotection. PG - 9041 LID - 10.1038/s41598-018-27016-w [doi] LID - 9041 AB - Meniscal allograft transplantation yields good and excellent results but is limited by donor availability. The purpose of the study was to evaluate the effectiveness of radiated deep-frozen xenogenic meniscal tissue (RDF-X) as an alternative graft choice in meniscal transplantation. The xenogenic meniscal tissues were harvested from the inner 1/3 part of the porcine meniscus and then irradiated and deeply frozen. The medial menisci of rabbits were replaced by the RDF-X. Meniscal allograft transplantation, meniscectomy and sham operation served as controls. Only a particular kind of rabbit-anti-pig antibody (molecular ranging 60-80 kD) was detected in the blood serum at week 2. The menisci of the group RDF-X grossly resembled the native tissue and the allograft meniscus with fibrocartilage regeneration at postoperative 1 year. Cell incorporation and the extracellular matrix were mostly observed at the surface and the inner 1/3 part of the newly regenerated RDF-X, which was different from the allograft. The biomechanical properties of the group RDF-X were also approximate to those of the native meniscus except for the compressive creep. In addition, chondroprotection was achieved after the RDF-X transplantation although the joint degeneration was not completely prevented. To conclude, the RDF-X could be a promising alternative for meniscal transplantation with similar tissue regeneration capacity to allograft transplantation and superior chondroprotection. The potential minor immunological rejection should be further studied before its clinical application. FAU - Jiang, Dong AU - Jiang D AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. FAU - Zhang, Zheng-Zheng AU - Zhang ZZ AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. AD - Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China. FAU - Zhao, Feng AU - Zhao F AD - Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, P. R. China. FAU - Wang, Shao-Jie AU - Wang SJ AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. AD - Department of Joint Surgery, Zhongshan Hospital of Xiamen University, Xiamen University, Xiamen, 361004, P. R. China. FAU - Qi, Yan-Song AU - Qi YS AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. FAU - Zhao, Li-Heng AU - Zhao LH AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. FAU - Zhang, Ji-Ying AU - Zhang JY AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. FAU - Yu, Jia-Kuo AU - Yu JK AD - Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, 100191, P. R. China. yujiakuo@126.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180613 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Animals MH - Cartilage, Articular/physiopathology/surgery MH - Cryopreservation/methods MH - Humans MH - Menisci, Tibial/physiopathology/*surgery MH - Meniscus/*transplantation/ultrastructure MH - Microscopy, Electron, Scanning MH - Rabbits MH - *Regeneration MH - Swine MH - Synovial Membrane/*physiopathology MH - Transplantation, Heterologous PMC - PMC5998046 COIS- The authors declare no competing interests. EDAT- 2018/06/15 06:00 MHDA- 2019/10/23 06:00 PMCR- 2018/06/13 CRDT- 2018/06/15 06:00 PHST- 2017/06/14 00:00 [received] PHST- 2018/05/14 00:00 [accepted] PHST- 2018/06/15 06:00 [entrez] PHST- 2018/06/15 06:00 [pubmed] PHST- 2019/10/23 06:00 [medline] PHST- 2018/06/13 00:00 [pmc-release] AID - 10.1038/s41598-018-27016-w [pii] AID - 27016 [pii] AID - 10.1038/s41598-018-27016-w [doi] PST - epublish SO - Sci Rep. 2018 Jun 13;8(1):9041. doi: 10.1038/s41598-018-27016-w.