Proliferation of genetically modified human cells on electrospun nanofiber scaffolds

Mandula Borjigin, Bryan Strouse, Rohina A. Niamat, Pawel Bialk, Chris Eskridge, Jingwei Xie, Eric B. Kmiec

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Gene editing is a process by which single base mutations can be corrected, in the context of the chromosome, using single-stranded oligodeoxynucleotides (ssODNs). The survival and proliferation of the corrected cells bearing modified genes, however, are impeded by a phenomenon known as reduced proliferation phenotype (RPP); this is a barrier to practical implementation. To overcome the RPP problem, we utilized nanofiber scaffolds as templates on which modified cells were allowed to recover, grow, and expand after gene editing. Here, we present evidence that some HCT116-19, bearing an integrated, mutated enhanced green fluorescent protein (eGFP) gene and corrected by gene editing, proliferate on polylysine or fibronectin-coated polycaprolactone (PCL) nanofiber scaffolds. In contrast, no cells from the same reaction protocol plated on both regular dish surfaces and polylysine (or fibronectin)-coated dish surfaces proliferate. Therefore, growing genetically modified (edited) cells on electrospun nanofiber scaffolds promotes the reversal of the RPP and increases the potential of gene editing as an ex vivo gene therapy application.

Original languageEnglish (US)
Article numbere59
Pages (from-to)e59
JournalMolecular Therapy - Nucleic Acids
Volume1
Issue numberDEC
DOIs
StatePublished - 2012

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Keywords

  • Electrospun
  • Gene editing
  • Nanofiber
  • ssODN

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery

Cite this

Borjigin, M., Strouse, B., Niamat, R. A., Bialk, P., Eskridge, C., Xie, J., & Kmiec, E. B. (2012). Proliferation of genetically modified human cells on electrospun nanofiber scaffolds. Molecular Therapy - Nucleic Acids, 1(DEC), e59. [e59]. https://doi.org/10.1038/mtna.2012.51