Skip to main content
Article
Nanotopography Influences Adhesion, Spreading, and Self-Renewal of Human Embryonic Stem Cells
ACS Nano (2012)
  • Weiqiang Chen, University of Michigan - Ann Arbor
  • Luis G. Villa-Diaz
  • Yubing Sun
  • Shinuo Weng
  • Jin Koo Kim
  • Raymond H. W. Lam
  • Lin Han
  • Rong Fan
  • Paul H. Krebsbach
  • Jianping Fu
Abstract
Human embryonic stem cells (hESCs) have great potentials for future cell-based therapeutics. However, their mechanosensitivity to biophysical signals from the cellular microenvironment is not well characterized. Here we introduced an effective microfabrication strategy for accurate control and patterning of nanoroughness on glass surfaces. Our results demonstrated that nanotopography could provide a potent regulatory signal over different hESC behaviors, including cell morphology, adhesion, proliferation, clonal expansion, and self-renewal. Our results indicated that topological sensing of hESCs might include feedback regulation involving mechanosensory integrin-mediated cell matrix adhesion, myosin II, and E-cadherin. Our results also demonstrated that cellular responses to nanotopography were cell-type specific, and as such, we could generate a spatially segregated coculture system for hESCs and NIH/3T3 fibroblasts using patterned nanorough glass surfaces.
Keywords
  • human embryonic stem cell
Publication Date
Spring April 9, 2012
Citation Information
Weiqiang Chen, Luis G. Villa-Diaz, Yubing Sun, Shinuo Weng, et al.. "Nanotopography Influences Adhesion, Spreading, and Self-Renewal of Human Embryonic Stem Cells" ACS Nano Vol. 6 Iss. 5 (2012)
Available at: http://works.bepress.com/weiqiang_chen/8/