Multispectral optoacoustic imaging of dynamic redox correlation and pathophysiological progression utilizing upconversion nanoprobes

Nat Commun. 2019 Mar 6;10(1):1087. doi: 10.1038/s41467-019-09001-7.

Abstract

Precise and differential profiling of the dynamic correlations and pathophysiological implications of multiplex biological mediators with deep penetration and highly programmed precision remain critical challenges in clinics. Here we present an innovative strategy by tailoring a powerful multispectral optoacoustic tomography (MSOT) technique with a photon-upconverting nanoprobe (UCN) for simultaneous visualization of diversely endogenous redox biomarkers with excellent spatiotemporal resolution in living conditions. Upon incorporating two specific radicals-sensitive NIR cyanine fluorophores onto UCNs surface, such nanoprobes can orthogonally respond to disparate oxidative and nitrosative stimulation, and generate spectrally opposite optoacoustic signal variations, which thus achieves compelling superiorities for reversed ratiometric tracking of multiple radicals under dual independent wavelength channels, and significantly, for precise validating of their complex dynamics and correlations with redox-mediated pathophysiological procession in vivo.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biomarkers / analysis
  • Disease Models, Animal
  • Female
  • Fluorescent Dyes / administration & dosage
  • Fluorescent Dyes / chemistry
  • Heart / diagnostic imaging
  • Humans
  • Inflammation / diagnostic imaging*
  • Inflammation / immunology
  • Inflammation / pathology
  • Kidney / diagnostic imaging
  • Kidney / pathology
  • Liver / diagnostic imaging
  • Liver / pathology
  • Lung / diagnostic imaging
  • Lung / pathology
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • Molecular Probes / administration & dosage
  • Molecular Probes / chemistry*
  • Nanoparticles / administration & dosage
  • Nanoparticles / chemistry*
  • Oxidation-Reduction
  • Photoacoustic Techniques / methods*
  • Photons*
  • RAW 264.7 Cells
  • Spectroscopy, Near-Infrared / methods
  • Spleen / diagnostic imaging
  • Spleen / pathology
  • Theranostic Nanomedicine / methods
  • Tomography, X-Ray Computed / methods

Substances

  • Biomarkers
  • Fluorescent Dyes
  • Molecular Probes