Layered patterning of hepatocytes in co-culture systems using microfabricated stencils

Cheul H. Cho, Jaesung Park, Arno W. Tilles, François Berthiaume, Mehmet Toner, Martin L. Yarmush

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

Microfabrication and micropatterning techniques in tissue engineering offer great potential for creating and controlling microenvironments in which cell behavior can be observed. Here we present a novel approach to generate layered patterning of hepatocytes on micropatterned fibroblast feeder layers using microfabricated polydimethylsiloxane (PDMS) stencils. We fabricated PDMS stencils to pattern circular holes with diameters of 500 μm. Hepatocytes were co-cultured with 3T3-J2 fibroblasts in two types of patterns to evaluate and characterize the cellular interactions in the co-culture systems. Results of this study demonstrated uniform intracellular albumin staining and E-cadherin expression, increased liver-specific functions, and active glycogen synthesis in the hepatocytes when the heterotypic interface between hepatocytes and fibroblasts was increased by the layered patterning technique. This patterning technique can be a useful experimental tool for applications in basic science, drug screening, and tissue engineering, as well as in the design of bioartificial liver devices.

Original languageEnglish (US)
Pages (from-to)47-52
Number of pages6
JournalBioTechniques
Volume48
Issue number1
DOIs
StatePublished - Jan 2010

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biochemistry, Genetics and Molecular Biology(all)

Keywords

  • Cellular interactions
  • Co-culture
  • Fibroblasts
  • Hepatocytes
  • Layered cell patterning

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