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Related Experiment Video

Updated: Jan 23, 2026

Enrichment of Mammalian Tissues and Xenopus Oocytes with Cholesterol
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Mammalian NADPH Oxidases.

Hélène Buvelot1, Vincent Jaquet2, Karl-Heinz Krause2

  • 1Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland. helene.buvelot@unige.ch.

Methods in Molecular Biology (Clifton, N.J.)
|June 8, 2019
PubMed
Summary
This summary is machine-generated.

Reactive oxygen species (ROS) are vital cellular components, not just by-products. The NOX NADPH oxidase enzyme family plays crucial roles in cell function and human health, with mutations causing disease.

Keywords:
Genetic deficiencyMouse modelsNADPH oxidaseReactive oxygen speciesRedox signaling

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Background:

  • Reactive oxygen species (ROS) were initially viewed as harmful metabolic by-products linked to aging and disease.
  • Recent discoveries highlight the essential roles of NOX NADPH oxidases, enzymes producing ROS in eukaryotic cells.
  • The NOX family comprises seven mammalian isoforms (NOX1-5, DUOX1-2) with distinct activation mechanisms and functions.

Purpose of the Study:

  • To provide a comprehensive overview of mammalian NOX/DUOX enzymes.
  • To summarize current knowledge on NOX biochemistry and physiology.
  • To highlight the significance of NOX enzymes in cellular function and disease.

Main Methods:

  • Review of existing literature on NOX/DUOX enzymes.
  • Analysis of genetic data and knockout mouse models.
  • Discussion of biochemical properties and cellular roles.

Main Results:

  • NOX enzymes are critical for various cellular processes.
  • Loss-of-function mutations in NOX genes cause significant human diseases, including immune deficiency and hypothyroidism.
  • Nox-deficient mice are valuable models for studying NADPH oxidase functions, though some genetic absences do not yield obvious phenotypes.

Conclusions:

  • Mammalian NOX/DUOX enzymes are essential for health and disease.
  • Despite significant progress, many aspects of NOX function and regulation require further investigation.
  • Understanding NOX enzymes is crucial for developing therapeutic strategies for related diseases.