Targeted Molecular Imaging of Cancer Cells Using MS2-Based (129)Xe NMR

Bioconjug Chem. 2016 Aug 17;27(8):1796-801. doi: 10.1021/acs.bioconjchem.6b00275. Epub 2016 Aug 1.

Abstract

We have synthesized targeted, selective, and highly sensitive (129)Xe NMR nanoscale biosensors using a spherical MS2 viral capsid, Cryptophane A molecules, and DNA aptamers. The biosensors showed strong binding specificity toward targeted lymphoma cells (Ramos line). Hyperpolarized (129)Xe NMR signal contrast and hyper-CEST (129)Xe MRI image contrast indicated its promise as highly sensitive hyperpolarized (129)Xe NMR nanoscale biosensor for future applications in cancer detection in vivo.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, N.I.H., Extramural

MeSH terms

  • Aptamers, Nucleotide / chemistry
  • Aptamers, Nucleotide / metabolism
  • Biosensing Techniques / methods*
  • Capsid / chemistry
  • Capsid / metabolism
  • Cell Line, Tumor
  • Humans
  • Levivirus
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Imaging / methods*
  • Polycyclic Compounds / chemistry
  • Protein Conformation

Substances

  • Aptamers, Nucleotide
  • Polycyclic Compounds
  • cryptophane A