Aligned Chitosan-Polycaprolactone Polyblend Nanofibers Promote the Migration of Glioblastoma Cells

Forrest M. Kievit, Ashleigh Cooper, Soumen Jana, Matthew C. Leung, Kui Wang, Dennis Edmondson, David Wood, Jerry S.H. Lee, Richard G. Ellenbogen, Miqin Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


In vitro models that accurately mimic the microenvironment of invading glioblastoma multiform (GBM) cells will provide a high-throughput system for testing potential anti-invasion therapies. Here, the ability of chitosan-polycaprolactone polyblend nanofibers to promote a migratory phenotype in human GBM cells by altering the nanotopography of the nanofiber membranes is investigated. Fibers are prepared with diameters of 200 nm, 400 nm, and 1.1 μm, and are either randomly oriented or aligned to produce six distinct nanotopographies. Human U-87 MG GBM cells, a model cell line commonly used for invasion assays, are cultured on the various nanofibrous substrates. Cells show elongation and alignment along the orientation of aligned fibers as early as 24 h and up to 120 h of culture. After 24 h of culture, human GBM cells cultured on aligned 200 nm and 400 nm fibers show marked upregulation of invasion-related genes including β-catenin, Snail, STAT3, TGF-β, and Twist, suggesting a mesenchymal change in these migrating cells. Additionally, cells cultured on 400 nm aligned fibers show similar migration profiles as those reported in vivo, and thus these nanofibers should provide a unique high-throughput in vitro culture substrate for developing anti-migration therapies for the treatment of GBM.

Original languageEnglish
Pages (from-to)1651-1659
Number of pages9
JournalAdvanced Healthcare Materials
Issue number12
StatePublished - Dec 2013
Externally publishedYes


  • Cancer
  • EMT
  • In vitro model
  • Microenvironment
  • Migration
  • Nanofiber


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