Abstract
The development of three-dimensional matrices capable of recapitulating the main features of native extracellular matrix and contribute for the establishment of a favorable microenvironment for cell behavior and fate is expected to circumvent some of the main limitations of cell-based therapies. In this context, self-assembly has emerged as a promising strategy to engineer cell-compatible hydrogels. A wide number of synthetically-derived biopolymers, such as proteins, peptides and DNA/RNA, with intrinsic ability to self-assemble into well-defined nanofibrous structures, are being explored. The resulting hydrogels, in addition to closely resembling the architecture of native cellular microenvironments, present a versatile and dynamic behavior that allows them to be designed to undergo sol-to-gel transition in response to exogenous stimulus. This review presents an overview on the state-of-the-art of the different strategies being explored for the development of injectable synthetic self-assembled hydrogels for cell transplantation and/or recruitment of endogenous cells, with an emphasis on their biological performance, both in vitro and in vivo. Systems based on peptides are the most widely explored and have already generated promising results in pre-clinical in vivo studies involving different repair/regenerative scenarios, including cartilage, bone, nerve and heart. On the other hand, systems based on DNA and hybrid hydrogels are now emerging for application in the biomedical field with high potential. Finally, the main challenges hampering the translation of these systems to the clinic and the issues that need to be addressed for these to progress from bench-to-bedside are discussed.
Keywords: Biodegradation, Cell transplantation, Hydrogels, Regenerative Medicine, Self-assembly, Synthetically-derived biopolymers.
Current Topics in Medicinal Chemistry
Title:Biomimetic Synthetic Self-Assembled Hydrogels for Cell Transplantation
Volume: 15 Issue: 13
Author(s): Daniela Barros, Isabel Freitas Amaral and Ana Paula Pego
Affiliation:
Keywords: Biodegradation, Cell transplantation, Hydrogels, Regenerative Medicine, Self-assembly, Synthetically-derived biopolymers.
Abstract: The development of three-dimensional matrices capable of recapitulating the main features of native extracellular matrix and contribute for the establishment of a favorable microenvironment for cell behavior and fate is expected to circumvent some of the main limitations of cell-based therapies. In this context, self-assembly has emerged as a promising strategy to engineer cell-compatible hydrogels. A wide number of synthetically-derived biopolymers, such as proteins, peptides and DNA/RNA, with intrinsic ability to self-assemble into well-defined nanofibrous structures, are being explored. The resulting hydrogels, in addition to closely resembling the architecture of native cellular microenvironments, present a versatile and dynamic behavior that allows them to be designed to undergo sol-to-gel transition in response to exogenous stimulus. This review presents an overview on the state-of-the-art of the different strategies being explored for the development of injectable synthetic self-assembled hydrogels for cell transplantation and/or recruitment of endogenous cells, with an emphasis on their biological performance, both in vitro and in vivo. Systems based on peptides are the most widely explored and have already generated promising results in pre-clinical in vivo studies involving different repair/regenerative scenarios, including cartilage, bone, nerve and heart. On the other hand, systems based on DNA and hybrid hydrogels are now emerging for application in the biomedical field with high potential. Finally, the main challenges hampering the translation of these systems to the clinic and the issues that need to be addressed for these to progress from bench-to-bedside are discussed.
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Cite this article as:
Barros Daniela, Amaral Freitas Isabel and Pego Paula Ana, Biomimetic Synthetic Self-Assembled Hydrogels for Cell Transplantation, Current Topics in Medicinal Chemistry 2015; 15 (13) . https://dx.doi.org/10.2174/1568026615666150330111057
DOI https://dx.doi.org/10.2174/1568026615666150330111057 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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