当前位置: X-MOL 学术J. Biomed. Mater. Res. Part A › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A laminin-211-derived bioactive peptide promotes the osseointegration of a sandblasted, large-grit, acid-etched titanium implant.
Journal of Biomedical Materials Research Part A ( IF 4.9 ) Pub Date : 2020-02-14 , DOI: 10.1002/jbm.a.36895
Jung-Yoo Choi 1 , Sungjin Kim 2 , Seung Bin Jo 3 , Hyun Ki Kang 3 , Sung Youn Jung 3 , Sang Wha Kim 4 , Byung-Moo Min 1, 3 , In-Sung Luke Yeo 1, 2
Affiliation  

Early implant loading is very important for reducing the duration of missing teeth in human patients. The laminin‐derived peptide, DLTIDDSYWYRI motif (Ln2‐P3), accelerates bone healing. Therefore, to investigate the hypothesis that Ln2‐P3 increases the bone response to sandblasted, large‐grit, acid‐etched (SLA) titanium implants, the effect of the Ln2‐P3 peptide on the osseointegration of SLA titanium implants was evaluated in vitro and in vivo. Human osteoblast‐like cells were cultured on untreated, scrambled peptide (SP)‐treated, and Ln2‐P3‐treated SLA titanium discs, and the cellular responses of these cells were evaluated. The Ln2‐P3 treatment augmented osteoblast attachment and spreading, alkaline phosphatase activity, and the expression of osteogenic marker genes. Furthermore, the untreated and Ln2‐P3‐treated SLA titanium implants were inserted into the tibiae of rabbits for 9 and 11 days. Compared with the untreated implants, the Ln2‐P3‐treated implants showed a significantly higher bone‐to‐implant contact ratio at Day 9 after implantation and an increased bone area. The Ln2‐P3 treatment of the SLA titanium implant surface augmented osteoblastic activity and accelerated peri‐implant bone formation at the bone–implant interface. Overall, these results indicated that compared with the SLA titanium surface alone, the Ln2‐P3 peptide‐treated SLA titanium surface enhances initial osseointegration, thereby facilitating earlier implant loading.

中文翻译:

层粘连蛋白 211 衍生的生物活性肽可促进喷砂、大砂砾、酸蚀刻钛植入物的骨整合。

早期种植体负载对于减少人类患者缺牙的持续时间非常重要。层粘连蛋白衍生肽 DLTIDDSYWYRI 基序 (Ln2-P3) 可加速骨愈合。因此,为了研究 Ln2-P3 增加对喷砂、大粒度、酸蚀 (SLA) 钛植入物的骨反应的假设,在体外评估了 Ln2-P3 肽对 SLA 钛植入物骨整合的影响体内。将人成骨细胞样细胞培养在未经处理、乱肽 (SP) 处理和 Ln2-P3 处理的 SLA 钛盘上,并评估这些细胞的细胞反应。Ln2-P3 处理增强了成骨细胞的附着和扩散、碱性磷酸酶活性以及成骨标记基因的表达。此外,将未经处理和 Ln2-P3 处理的 SLA 钛植入物植入兔胫骨 9 天和 11 天。与未处理的种植体相比,Ln2-P3 处理的种植体在种植后第 9 天显示出显着更高的骨与种植体接触比,并增加了骨面积。SLA 钛种植体表面的 Ln2-P3 处理增强了成骨细胞活性并加速了骨 - 种植体界面的种植体周围骨形成。总体而言,这些结果表明,与单独的 SLA 钛表面相比,Ln2-P3 肽处理的 SLA 钛表面增强了初始骨整合,从而促进了早期种植体负载。在植入后第 9 天,Ln2-P3 处理的种植体显示出显着更高的骨与种植体接触比,并且骨面积增加。SLA 钛种植体表面的 Ln2-P3 处理增强了成骨细胞活性并加速了骨 - 种植体界面的种植体周围骨形成。总体而言,这些结果表明,与单独的 SLA 钛表面相比,Ln2-P3 肽处理的 SLA 钛表面增强了初始骨整合,从而促进了早期种植体负载。在植入后第 9 天,Ln2-P3 处理的种植体显示出显着更高的骨与种植体接触比,并且骨面积增加。SLA 钛种植体表面的 Ln2-P3 处理增强了成骨细胞活性并加速了骨 - 种植体界面的种植体周围骨形成。总体而言,这些结果表明,与单独的 SLA 钛表面相比,Ln2-P3 肽处理的 SLA 钛表面增强了初始骨整合,从而促进了早期种植体负载。
更新日期:2020-02-14
down
wechat
bug