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Updated: Jul 21, 2025

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix
Published on: June 14, 2016
DNA damage and nuclear morphological changes in cardiac hypertrophy are mediated by SNRK through actin
Paulina Stanczyk1,2,3, Yuki Tatekoshi1,3, Jason S Shapiro1,3
1Division of Cardiology, Department of Medicine, and Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of Medicine, Chicago, IL, USA.
SNF1-related kinase (SNRK) regulates cardiomyocyte nuclear structure and DNA damage response (DDR). Loss of SNRK worsens cardiac hypertrophy by disrupting actin polymerization and nuclear morphology, suggesting SNRK/DSTN interaction as a therapeutic target.
Area of Science:
- Cardiovascular Biology
- Molecular Cardiology
- Cellular and Nuclear Dynamics
Background:
- Proper nuclear organization is crucial for cardiomyocyte function and cardiovascular health.
- Aberrant nuclear morphology and chromatin structure are linked to cardiovascular disease progression.
- The role of DNA damage response (DDR) in cardiac hypertrophy is not fully understood.
Conclusions:
- SNRK plays a critical role in mitigating cardiac hypertrophy and DNA damage.
- SNRK interacts with DSTN to regulate actin dynamics, thereby maintaining cardiomyocyte nuclear integrity.
- Targeting the SNRK/DSTN pathway offers potential therapeutic strategies for pressure overload-induced cardiac hypertrophy.
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