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September 10, 2025Nature Cardiovascular ResearchOpen Access

p22phox prevents the oxidation of SERCA2a and stabilizes it in the heart

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Authors

YNYasuki NakadaATAllen Sam TitusWMWataru Mizushima

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Overview

This study demonstrates p22phox's role in stabilizing SERCA2a and reducing cardiac dysfunction, indicating significant therapeutic potential.

Key Points

  • p22phox prevents the oxidation of SERCA2a, which is crucial for calcium management in the heart.
  • Cardiac-specific knockout of p22phox significantly worsens heart failure and oxidative stress in cardiomyocytes.
  • Mutating the cysteine residue Cys498 on SERCA2a alleviates symptoms of heart failure in a mouse model.
  • Understanding p22phox's protective role may lead to new therapies for heart failure.

Cite This Study

Nakada et al. (2025) studied this question.

synapsesocial.com/papers/68c183fe9b7b07f3a060ff69https://doi.org/10.1038/s44161-025-00699-x
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