GSK3 inhibitor-loaded osteotropic Pluronic hydrogel effectively mitigates periodontal tissue damage associated with experimental periodontitis

被引：76

作者：

Almoshari, Yosif ^{[1
,2
]}

Ren, Rongguo ^{[1
]}

Zhang, Haipeng ^{[3
]}

Jia, Zhenshan ^{[1
]}

Wei, Xin ^{[1
]}

Chen, Ningrong ^{[1
]}

Li, Guojuan ^{[1
]}

Ryu, Sangjin ^{[3
,4
]}

Lele, Subodh M. ^{[5
]}

Reinhardt, Richard A. ^{[6
]}

Wang, Dong ^{[1
]}

机构：

[1] Univ Nebraska Med Ctr, Coll Pharm, Dept Pharmaceut Sci, Omaha, NE 68198 USA

[2] Jazan Univ, Coll Pharm, Dept Pharmaceut, Jazan 45142, Saudi Arabia

[3] Univ Nebraska, Coll Engn, Dept Mech & Mat Engn, Lincoln, NE 68588 USA

[4] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

[5] Univ Nebraska Med Ctr, Coll Med, Dept Pathol & Microbiol, Omaha, NE 68198 USA

[6] Univ Nebraska Med Ctr, Coll Dent, Dept Surg Specialties, Lincoln, NE 68583 USA

来源：

BIOMATERIALS | 2020年 / 261卷

基金：

美国国家卫生研究院;

关键词：

Periodontitis; GSK3; inhibitor; Pluronic F127; Pyrophosphate; Thermoresponsive hydrogel; Osteotropic; GLYCOGEN-SYNTHASE KINASE-3; DRUG-DELIVERY; CROSS-LINKING; BONE LOSS; CELLS; BISPHOSPHONATES; ARTHRITIS; MICELLES; PRODRUG; CANCER;

D O I：

10.1016/j.biomaterials.2020.120293

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Periodontitis is a chronic inflammatory disease caused by complex interactions between the host immune system and pathogens that affect the integrity of periodontium. To prevent disease progression and thus preserve alveolar bone structure, simultaneous anti-inflammatory and osteogenic intervention are essential. Hence, a glycogen synthase kinase 3 beta inhibitor (BIO) was selected as a potent inflammation modulator and osteogenic agent to achieve this treatment objective. BIO's lack of osteotropicity, poor water solubility, and potential long-term systemic side effects, however, have hampered its clinical applications. To address these limitations, pyrophosphorylated Pluronic F127 (F127-PPi) was synthesized and mixed with regular F127 to prepare an injectable and thermoresponsive hydrogel formulation (PF127) of BIO, which could adhere to hard tissue and gradually release BIO to exert its therapeutic effects locally. Comparing to F127 hydrogel, PF127 hydrogels exhibited stronger binding to hydroxyapatite (HA). Additionally, BIO's solubility in PF127 solution was dramatically improved over F127 solution and the improvement was proportional to the polymer concentration. When evaluated on a rat model of periodontitis, PF127-BIO hydrogel treatment was found to be very effective in preserving alveolar bone and ligament, and preventing periodontal inflammation, as shown by the micro-CT and histological data, respectively. Altogether, these findings suggested that the thermoresponsive PF127 hydrogel is an effective local drug delivery system for better clinical management of periodontitis and associated pathologies.

引用

页数：13

共 64 条

[1] Inhibition of GSK3 Abolishes Bacterial-Induced Periodontal Bone Loss in Mice [J].