The penetration and phenotype modulation of smooth muscle cells on surface heparin modified poly(ɛ-caprolactone) vascular scaffold

Jie Cao, Xue Geng, Juan Wen, Qingxuan Li, Lin Ye*, Aiying Zhang, Zengguo Feng, Lianrui Guo, Yongquan Gu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The tubular porous poly(ɛ-caprolactone) (PCL) scaffold was fabricated by electrospinning. After then, the scaffold's surface was firstly eroded by hexyldiamine to endow amine group, and heparin was covalently grafted to the surface to get surface heparin modified scaffold (ShPCL scaffold). It was found that ShPCL scaffold can induce smooth muscle cells (SMCs) to penetrate the scaffold surface, while the SMCs cannot penetrate the surface of PCL scaffold. Subsequently, the rabbit SMCs were seeded on the ShPCL scaffold and cultured for 14 days. It was found the expression of α-smooth muscle actin in ShPCL scaffold maintained much higher level than that in culture plate, which implied the SMC differentiation in ShPCL scaffold. Furthermore, the immunefluorescence staining of the cross-sections of ShPCL scaffold exhibited the expression of calponin in ShPCL scaffold can be detected after 7 and 14 days, whereas the expression of smooth muscle myosin heavy chain can also be detected at 14 days. These results proved that penetrated SMCs preferably differentiated in to contractile phenotype. The successful SMC penetration and the contractile phenotype expression implied ShPCL scaffold is a suitable candidate for regenerating smooth muscle layer in vascular tissue engineering.

Original languageEnglish
Pages (from-to)2806-2815
Number of pages10
JournalJournal of Biomedical Materials Research - Part A
Volume105
Issue number10
DOIs
Publication statusPublished - Oct 2017

Keywords

  • cell penetration
  • contractile phenotype
  • heparin
  • smooth muscle cells
  • vascular tissue engineering

Fingerprint

Dive into the research topics of 'The penetration and phenotype modulation of smooth muscle cells on surface heparin modified poly(ɛ-caprolactone) vascular scaffold'. Together they form a unique fingerprint.

Cite this