A biomimetic approach to hormone resistant prostate cancer cell isolation using inactivated Sendai virus (HVJ-E)

Biomater Sci. 2016 Jan;4(1):96-103. doi: 10.1039/c5bm00375j.

Abstract

Our study reports a versatile immobilization method of Hemagglutinating Virus of Japan Envelope (HVJ-E) for the generation of viral-mimetic surfaces for hormone resistant prostate cancer cell isolation. HVJ-E has recently attracted much attention as a new type of therapeutic material because hormone resistant prostate cancer cells such as PC-3 cells possess the HVJ-E receptors, GD1a. The HVJ-E was successfully immobilized on precursor films composed of poly-l-lysine and alginic acid via layer-by-layer assembly without changing the biological activity. The monolayer adsorption of HVJ-E particles was confirmed by quartz crystal microbalance, fluorescent and atomic force microscopy analyses. By developing the HVJ-E coating with an affinity based cell trap within a glass capillary tube, we are able to gently isolate PC-3 from LN-Cap cells that represent adenocarcinoma without compromising cell viability. We achieved approximately 100% cell separation efficiency only by 60 seconds of flowing. We believe that the proposed technique offers significant promise for the creation of a hormone resistant cancer cell trap on a broad range of materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomimetics / methods*
  • Cell Line, Tumor
  • Cell Separation
  • Cell Survival
  • Humans
  • Lysine / chemistry*
  • Lysine / metabolism
  • Male
  • Oncolytic Virotherapy / methods*
  • Prostatic Neoplasms / chemistry*
  • Prostatic Neoplasms / pathology
  • Sendai virus / chemistry*
  • Sendai virus / metabolism

Substances

  • Lysine