文献类型：期刊文献

英文题名：Phytic Acid-Gallium Network on a Polyimide Fiber Woven Fabric as an Artificial Ligament for Boosting Ligament-Bone Healing and Infection Treatment

作者：Xie, En[1];Mei, Jun[2];Xie, Shangyu[1];Hu, Zhitao[1];Xi, Xiaowen[1];Song, Anqi[1];Yao, Bin[3];Wang, Deqiang[1];Wei, Jie[1];Niu, Yunfei[3,4]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]Tongji Univ, Shanghai East Hosp, Sch Med, Dept Paediat, Shanghai 200120, Peoples R China;[3]Univ Shanghai Sci & Technol, Shidong Hosp, Dept Orthopaed, Shanghai 200438, Peoples R China;[4]Naval Med Univ, Affiliated Hosp 1, Dept Trauma Orthopaed, Shanghai 200433, Peoples R China

年份：2024

卷号：16

期号：31

起止页码：40726

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20243116781171);WOS:【SCI-EXPANDED(收录号:WOS:001275509700001)】；

基金：This work received grants from the National Natural Science Foundation of China (32171340, 81772343, and 81771990).

语种：英文

外文关键词：polyimide fiber; artificial ligament; osteogenesis; osteoclastogenesis; antibacteria

摘要：The development of an artificial ligament with a multifunction of promoting bone formation, inhibiting bone resorption, and preventing infection to obtain ligament-bone healing for anterior cruciate ligament (ACL) reconstruction still faces enormous challenges. Herein, a novel artificial ligament based on a PI fiber woven fabric (PIF) was fabricated, which was coated with a phytic acid-gallium (PA-Ga) network via a layer-by-layer assembly method (PFPG). Compared with PIF, PFPG with PA-Ga coating significantly suppressed osteoclastic differentiation, while it boosted osteoblastic differentiation in vitro. Moreover, PFPG obviously inhibited fibrous encapsulation and bone absorption while accelerating new bone regeneration for ligament-bone healing in vivo. PFPG remarkably killed bacteria and destroyed biofilm, exhibiting excellent antibacterial properties in vitro as well as anti-infection ability in vivo, which were ascribed to the release of Ga ions from the PA-Ga coating. The cooperative effect of the surface characteristics (e.g., hydrophilicity/surface energy and protein absorption) and sustained release of Ga ions for PFPG significantly enhanced osteogenesis while inhibiting osteoclastogenesis, thereby achieving ligament-bone integration as well as resistance to infection. In summary, PFPG remarkably facilitated osteoblastic differentiation, while it suppressed osteoclastic differentiation, thereby inhibiting osteoclastogenesis for bone absorption while accelerating osteogenesis for ligament-bone healing. As a novel artificial ligament, PFPG represented an appealing option for graft selection in ACL reconstruction and displayed considerable promise for application in clinics.