Respective Effects of Gelatin-Coated Polydimethylsiloxane (PDMS) Substrates on Self-renewal and Cardiac Differentiation of Induced Pluripotent Stem Cells (iPSCs)

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)4321-4330
Journal / PublicationACS Biomaterials Science and Engineering
Volume4
Issue number12
Online published5 Oct 2018
Publication statusPublished - 10 Dec 2018
Externally publishedYes

Abstract

The effects of substrate stiffness on the development of cardiomyocytes have been investigated extensively. Polydimethylsiloxane (PDMS) elastomer is one of biomaterials that are commonly used to explore the effects of substrate compliance on stem cell differentiation. Although the effects of substrate stiffness on cardiac differentiation of pluripotent stem cells, such as embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), have been reported, whether the stiffness of PDMS-based substrates could enhance differentiation of iPSCs toward cardiomyocyte lineage or not remains unknown. In this study, we found that a denser gelatin distribution and a higher gelatin adsorption on the stiffer PDMS. In addition, nanotopographies on PDMS substrates with different stiffness were distinct. iPSCs on the stiffer PDMS substrates showed higher pluripotency marker but lower cardiac gene expressions. In contrast, iPSCs on the softer PDMS substrates revealed lower pluripotency marker but higher cardiac gene expressions. These results indicate that stiffer PDMS substrates with gelatin coating could be used to support iPSC self-renewal and softer PDMS substrates coated with gelatin could be used for enhanced cardiac differentiation of iPSCs.

Research Area(s)

  • cardiac differentiation, gelatin coating, iPSCs, PDMS, self-renewal, substrate stiffness

Citation Format(s)

Respective Effects of Gelatin-Coated Polydimethylsiloxane (PDMS) Substrates on Self-renewal and Cardiac Differentiation of Induced Pluripotent Stem Cells (iPSCs). / Fu, Jiayin; Chuah, Yon Jin; Liu, Jian; Tan, Si Ying; Wang, Dong-An.

In: ACS Biomaterials Science and Engineering, Vol. 4, No. 12, 10.12.2018, p. 4321-4330.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal