• 文献标题:   Graphene-Augmented Nanofiber Scaffolds Trigger Gene Expression Switching of Four Cancer Cell Types
  • 文献类型:   Article
  • 作  者:   KAZANTSEVA J, IVANOV R, GASIK M, NEUMAN T, HUSSAINOVA I
  • 作者关键词:   scaffold, nanofiber, alumina, graphene, anisotropy, cancer, gene expression
  • 出版物名称:   ACS BIOMATERIALS SCIENCE ENGINEERING
  • ISSN:   2373-9878
  • 通讯作者地址:   Aalto Univ Fdn
  • 被引频次:   1
  • DOI:   10.1021/acsbiomaterials.8b00228
  • 出版年:   2018

▎ 摘  要

Three-dimensional (3D) customized scaffolds are anticipated to provide new frontiers in cell manipulation and advanced therapy methods. Here, we demonstrate the application of hybrid 3D porous scaffolds, representing networks of highly aligned self-assembled ceramic nanofibers, for culturing four types of cancer cells. Ultrahigh aspect ratio (similar to 10(7)) of graphene augmented fibers of tailored nanotopology is shown as an alternative tool to substantially affect cancerous gene expression, eventually due to differences in local biomechanical features of the cell-matrix interactions. Here, we report a clear selective up- and down-regulation of groups of markers for breast cancer (MDA-MB231), colorectal cancer (CaCO2), melanoma (WM239A), and neuroblastoma (Kelly) depending on only fiber orientation and morphology without application of any other stimulus. Changes in gene expression are also revealed for Mitomycin C treatment of MDA- MB231, making the scaffold a suitable platform for testing of anticancer agents. This allows an opportunity for selective "clean" guidance to a deep understanding of mechanisms of cancer cells progressive growth and tumor formation without possible side effects by manipulation with the specific markers.