Spatial regulation of specific gene expression through photoactivation of RNAi

J Control Release. 2009 Aug 4;137(3):241-5. doi: 10.1016/j.jconrel.2009.04.015. Epub 2009 Apr 17.

Abstract

In this study we describe the spatial regulation of RNA interference (RNAi) using an RNA-carrier protein labeled with a fluorescent dye and a light source to trigger the RNAi. We demonstrate photo-dependent gene silencing using several dyes with different excitation wavelengths. Additionally, we use light from a halogen lamp and a photomask to produce photopatterned RNAi, and laser light to trigger single-cell RNAi on cell culture plates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • CHO Cells
  • Cricetinae
  • Cricetulus
  • Drug Carriers / administration & dosage
  • Drug Carriers / chemistry
  • Fluorescent Dyes / administration & dosage
  • Fluorescent Dyes / chemistry*
  • Gene Products, tat / administration & dosage
  • Gene Products, tat / chemistry*
  • Lasers
  • Photochemistry*
  • RNA Interference*
  • RNA, Small Interfering / administration & dosage*
  • Recombinant Fusion Proteins / administration & dosage
  • Recombinant Fusion Proteins / chemistry
  • Ribonucleoprotein, U1 Small Nuclear / administration & dosage
  • Ribonucleoprotein, U1 Small Nuclear / chemistry*

Substances

  • Drug Carriers
  • Fluorescent Dyes
  • Gene Products, tat
  • RNA, Small Interfering
  • Recombinant Fusion Proteins
  • Ribonucleoprotein, U1 Small Nuclear
  • U1A protein