Nanoparticles Strengthen Intracellular Tension and Retard Cellular Migration

作者:Tay Chor Yong; Cai Pingqiang; Setyawati Magdiel I; Fang Wanru; Tan Lay Poh; Hong Catherine H L; Chen Xiaodong*; Leong David Tai
来源:Nano Letters, 2014, 14(1): 83-88.
DOI:10.1021/nl4032549

摘要

Nanoparticles can have profound effects on cell biology. Here, we show that after TiO2, SiO2, and hydroxyapatite nanoparticles treatment, TR146 epithelial cell sheet displayed slower migration. Cells after exposure to the nanoparticles showed increased cell contractility with significantly impaired wound healing capability however without any apparent cytotoxicity. We showed the mechanism is through nanoparticle-mediated massive disruption of the intracellular microtubule assembly, thereby triggering a positive feedback that promoted stronger substrate adhesions thus leading to limited cell motility.

  • 出版日期2014-1
  • 单位南阳理工学院

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