PUBLICATION

A fast and selective two-photon phosphorescent probe for the imaging of nitric oxide in mitochondria

Authors
Chen, X., Sun, L., Chen, Y., Cheng, X., Wu, W., Ji, L., Chao, H.
ID
ZDB-PUB-150506-3
Date
2015
Source
Biomaterials   58: 72-81 (Journal)
Registered Authors
Chen, Yu
Keywords
Iridium complex, Mitochondria, Nitric oxide, Two-photon probe, Zebrafish
MeSH Terms
  • Animals
  • Cell Adhesion
  • Diamines/chemistry
  • HeLa Cells
  • Humans
  • Iridium/chemistry
  • Luminescence
  • Mass Spectrometry
  • Microscopy, Confocal/instrumentation*
  • Mitochondria/metabolism*
  • Molecular Probes/chemistry*
  • Nitric Oxide/chemistry*
  • Phenanthrolines/chemistry
  • Photons
  • Spheroids, Cellular
  • Tumor Cells, Cultured
  • Zebrafish
PubMed
25941784 Full text @ Biomaterials
Abstract
Nitric oxide (NO) is a vitally important cellular messenger molecule related to numerous physiological events and diseases. It is more than 10 years now that mitochondria are suspected to be sources of nitric oxide. Hence, mitochondrial NO tracking probes play an indispensable role in NO behavior analysis. However, a majority of previously reported NO probes can only be employed under one-photon microscopy, often with several drawbacks during application. In the present study, an iridium(III) complex containing 1,10-phenanthroline-5,6-diamine (Ir-Mito-NO) was synthesized and determined to possess high specificity to NO in mitochondria, low cytotoxicity, and rapid and specific "off-on" two-photon phosphorescence. Thus, this complex was developed to image mitochondrial NO levels in living cells, 3D multicellular spheroids and zebrafish.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping