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Preparation and characterization of polylactide/poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) hybrid fibers for potential application in bone tissue engineering

Authors Wang YL, Guo G, Chen HF, Gao X, Fan RR, Zhang DM, Zhou LX

Received 3 October 2013

Accepted for publication 14 November 2013

Published 17 April 2014 Volume 2014:9(1) Pages 1991—2003

DOI https://doi.org/10.2147/IJN.S55318

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

YueLong Wang,1,2,* Gang Guo,1,* HaiFeng Chen,2 Xiang Gao,1 RangRang Fan,1 DongMei Zhang,1 LiangXue Zhou2

1State Key Laboratory of Biotherapy and Cancer Center, 2Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China

*These authors contributed equally to this paper


Abstract: The aim of this study was to develop a kind of osteogenic biodegradable composite graft consisting of human placenta-derived mesenchymal stem cell (hPMSC) material for site-specific repair of bone defects and attenuation of clinical symptoms. The novel nano- to micro-structured biodegradable hybrid fibers were prepared by electrospinning. The characteristics of the hybrid membranes were investigated by a range of methods, including Fourier transform infrared spectroscopy, X-ray diffraction, and differential scanning calorimetry. Morphological study with scanning electron microscopy showed that the average fiber diameter and the number of nanoscale pores on each individual fiber surface decreased with increasing concentration of poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCEC). The prepared polylactide (PLA)/PCEC fibrous membranes favored hPMSC attachment and proliferation by providing an interconnected, porous, three-dimensional mimicked extracellular environment. What is more, hPMSCs cultured on the electrospun hybrid PLA/PCEC fibrous scaffolds could be effectively differentiated into bone-associated cells by positive alizarin red staining. Given the good cellular response and excellent osteogenic potential in vitro, the electrospun PLA/PCEC fibrous scaffolds could be one of the most promising candidates for bone tissue engineering.

Keywords: electrospinning, PLA, PCEC, hPMSCs, bone tissue engineering


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