|
1
|
Jiang F, Yin F, Lin Y, Xia W, Zhou L, Pan C, Wang N, Shan H, Zhou Z, Yu X. The promotion of bone regeneration through CS/GP-CTH/antagomir-133a/b sustained release system. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 24:102116. [PMID: 31672602 DOI: 10.1016/j.nano.2019.102116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 10/25/2022]
Abstract
Few studies reported the application of miRNA in bone regeneration. In this study, the expression of miR133a and miR133b in murine BMSCs was inhibited via antagomiR-133a/b and the osteogenic differentiation in murine BMSCs was evaluated. The RT-PCR, flow cytometry, cell counting kit-8, and annexin V-FITC/PI double staining assays were performed. Double knockdown miR133a and miR133b can promote BMSC osteogenic differentiation. At optimum N/P ration (15:1), the loading efficiency can reach over 90%. CTH-antagomiR-133a/b showed no cytotoxicity to BMSCs and diminished miR133a and miR133b expression in BMSCs. Furthermore, chitosan-based sustained delivery system can facilitate continuous dosing of antagomiR-133a/b, which enhanced calcium deposition and osteogenic specific gene expression in vitro. The new bone formation was enhanced after the sustained delivery system containing CTH-antagomiR-133a/b nanoparticles was used in mouse calvarial bone defect model. Our results demonstrate that CTH nanoparticles could facilitate continuous dosing of antagomiR133a/b, which can promote osteogenic differentiation.
Collapse
Affiliation(s)
- Fusong Jiang
- Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Fuli Yin
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yiwei Lin
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wenyang Xia
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lihui Zhou
- Department of Orthopaedic Surgery, Xiangshan First People's Hospital, Ningbo, Zhejiang, China
| | - Chenhao Pan
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Nan Wang
- Department of Emergency, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Haojie Shan
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zubin Zhou
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Xiaowei Yu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| |
Collapse
|