Implantable and Biodegradable Macroporous Iron Oxide Frameworks for Efficient Regeneration and Repair of Infracted Heart
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Date
2017
Author(s)
Wang, Wenshuo
Tao, Hongyue
Zhao, Yun
Sun, Xiaotian
Tang, Jing
Selomulya, Cordelia
Tang, Jia
Chen, Tianchan
Wang, Yang
Shu, Minglei
Wei, Lei
Yi, Guanyu
Zhou, Jixue
Wei, Lai
Wang, Chunsheng
Kong, Biao
Publisher
Ivyspring International Publisher
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Citation
Wang, W., H. Tao, Y. Zhao, X. Sun, J. Tang, C. Selomulya, J. Tang, et al. 2017. “Implantable and Biodegradable Macroporous Iron Oxide Frameworks for Efficient Regeneration and Repair of Infracted Heart.” Theranostics 7 (7): 1966-1975. doi:10.7150/thno.16866. http://dx.doi.org/10.7150/thno.16866.
Abstract
The construction, characterization and surgical application of a multilayered iron oxide-based macroporous composite framework were reported in this study. The framework consisted of a highly porous iron oxide core, a gelatin-based hydrogel intermediary layer and a matrigel outer cover, which conferred a multitude of desirable properties including excellent biocompatibility, improved mechanical strength and controlled biodegradability. The large pore sizes and high extent of pore interconnectivity of the framework stimulated robust neovascularization and resulted in substantially better cell viability and proliferation as a result of improved transport efficiency for oxygen and nutrients. In addition, rat models with myocardial infraction showed sustained heart tissue regeneration over the infract region and significant improvement of cardiac functions following the surgical implantation of the framework. These results demonstrated that the current framework might hold great potential for cardiac repair in patients with myocardial infraction.
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