Nanofibers support oligodendrocyte precursor cell growth and function as a neuron-free model for myelination study

Yongchao Li, Muhammet Ceylan, Bikesh Shrestha, Haibo Wang, Q. Richard Lu, Ramazan Asmatulu, Li Yao

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Nanofiber-based scaffolds may simultaneously provide immediate contact guidance for neural regeneration and act as a vehicle for therapeutic cell delivery to enhance axonal myelination. Additionally, nanofibers can serve as a neuron-free model to study myelination of oligodendrocytes. In this study, we fabricated nanofibers using a polycaprolactone and gelatin copolymer. The ratio of the gelatin component in the fibers was confirmed by energy dispersive X-ray spectroscopy. The addition of gelatin to the polycaprolactone (PCL) for nanofiber fabrication decreased the contact angle of the electrospun fibers. We showed that both polycaprolactone nanofibers as well as polycaprolactone and gelatin copolymer nanofibers can support oligodendrocyte precursor cell (OPC) growth and differentiation. OPCs maintained their phenotype and viability on nanofibers and were induced to differentiate into oligodendrocytes. The differentiated oligodendrocytes extend their processes along the nanofibers and ensheathed the nanofibers. Oligodendrocytes formed significantly more myelinated segments on the PCL and gelatin copolymer nanofibers than those on PCL nanofibers alone.

Original languageEnglish (US)
Pages (from-to)319-326
Number of pages8
JournalBiomacromolecules
Volume15
Issue number1
DOIs
StatePublished - Jan 13 2014

ASJC Scopus subject areas

  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

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