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Direct Delivery of Recombinant Pin1 Protein Rescued Osteoblast Differentiation of Pin1-Deficient Cells

Cited 9 time in Web of Science Cited 11 time in Scopus
Authors

Kim, Woo-Jin; Islam, Rabia; Kim, Bong-Soo; Cho, Young-Dan; Yoon, Won-Joon; Baek, Jeong-Hwa; Woo, Kyung-Mi; Ryoo, Hyun-Mo

Issue Date
2017-10
Publisher
John Wiley & Sons Inc.
Citation
Journal of Cellular Physiology, Vol.232 No.10, pp.2798-2805
Abstract
Pin1 is a peptidyl prolyl cis-trans isomerase that specifically binds to the phosphoserine-proline or phosphothreonine-proline motifs of several proteins. We reported that Pin1 plays a critical role in the fate determination of Smad1/5, Runx2, and beta-catenin that are indispensable nuclear proteins for osteoblast differentiation. Though several chemical inhibitors has been discovered for Pin1, no activator has been reported as of yet. In this study, we directly introduced recombinant Pin1 protein successfully into the cytoplasm via fibroin nanoparticle encapsulated in cationic lipid. This nanoparticle-lipid complex delivered its cargo with a high efficiency and a low cytotoxicity. Direct delivery of Pin1 leads to increased Runx2 and Smad signaling and resulted in recovery of the osteogenic marker genes expression and the deposition of mineral in Pin1-deficient cells. These result indicated that a direct Pin1 protein delivery method could be a potential therapeutics for the osteopenic diseases.
ISSN
0021-9541
URI
https://hdl.handle.net/10371/200603
DOI
https://doi.org/10.1002/jcp.25673
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Cho, Young-Dan조영단
(기금)조교수
  • School of Dentistry
  • Department of Dentistry
Research Area Alveolar bone regeneration, Dental implant surface modification, Periomics

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