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Updated: Jul 20, 2026

ROS Live Cell Imaging During Neuronal Development
09:25

ROS Live Cell Imaging During Neuronal Development

Published on: February 9, 2021

Localizing NADPH oxidase-derived ROS.

Masuko Ushio-Fukai1

  • 1Department of Pharmacology and Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA. mfukai@uic.edu

Science'S STKE : Signal Transduction Knowledge Environment
|August 24, 2006
PubMed
Summary

Localized reactive oxygen species (ROS) production by NADPH oxidase is crucial for cell signaling. Targeting NADPH oxidase to specific cellular compartments ensures localized ROS signals, driving cell migration and gene expression.

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Area of Science:

  • Cellular Biology
  • Biochemistry
  • Physiology

Background:

  • Reactive oxygen species (ROS) are vital signaling molecules regulating cell migration, growth, and gene expression.
  • ROS are short-lived and diffusible, necessitating localized production for effective redox signaling.
  • NADPH oxidase is a primary source of ROS in the vasculature, comprising several subunits and regulators.

Purpose of the Study:

  • To review the mechanisms of targeting NADPH oxidase to specific subcellular compartments.
  • To elucidate how localized ROS production activates downstream redox signaling pathways.
  • To highlight the role of targeted ROS in mediating diverse cellular functions.

Main Methods:

  • Review of existing literature on NADPH oxidase localization and function.

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ROS Live Cell Imaging During Neuronal Development
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Bioluminescence Imaging of NADPH Oxidase Activity in Different Animal Models
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  • Analysis of protein interactions, including p47phox with TRAF4 and WAVE1.
  • Examination of ROS production sites such as focal complexes, lipid rafts, caveolae, endosomes, and the nucleus.

    • Main Results:

    • NADPH oxidase targeting to focal complexes enables localized ROS production for directed cell migration.
    • ROS inactivation of protein tyrosine phosphatases creates a positive feedback loop for redox signaling.
    • NADPH oxidase localization within the nucleus suggests a role in redox-responsive gene expression.

    Conclusions:

    • Targeting of NADPH oxidase to discrete subcellular compartments is a key mechanism for localizing ROS.
    • Localized ROS signaling is essential for regulating cell migration, gene expression, and other cellular functions.
    • Understanding NADPH oxidase localization provides insights into redox signaling and cellular responses.