DNA-binding protein-A promotes kidney ischemia/reperfusion injury and participates in mitochondrial function
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View abstract on PubMed
Summary
This summary is machine-generated.DNA-binding protein-A (DbpA) is dispensable in healthy kidneys but detrimental during injury. Deleting the Ybx3 gene, which encodes DbpA, protects kidneys from ischemia/reperfusion injury by improving mitochondrial function and reducing cell damage.
Area Of Science
- Cell Biology
- Mitochondrial Biology
- Renal Physiology
Background
- DNA-binding protein-A (DbpA), a cold shock protein, is implicated in cell processes and upregulated in chronic nephritis.
- Its role in acute kidney injury, specifically ischemia/reperfusion injury (IRI), remains largely unknown.
Purpose Of The Study
- To investigate the function of DbpA in kidney development, homeostasis, and response to IRI.
- To elucidate the mechanisms by which DbpA influences kidney cell metabolism and injury.
Main Methods
- Characterization of Ybx3 knockout (Ybx3-/-), heterozygous (Ybx3+/-), and wild-type (Ybx3+/+) mice.
- Assessment of kidney IRI using mitochondrial stress tests, electron microscopy, Western Blot, immunohistochemistry, and flow cytometry.
Main Results
- DbpA is dispensable for normal kidney development and homeostasis.
- DbpA localizes to mitochondria and its deletion enhances mitochondrial function and cellular metabolism.
- Ybx3-/- mice exhibit significant protection against kidney IRI, characterized by reduced immune cell infiltration, endoplasmic reticulum stress, and tubular damage.
- DbpA deletion upregulates antioxidant activity and reduces ferroptosis, contributing to kidney protection.
Conclusions
- DbpA is a mitochondrial protein that negatively impacts cellular metabolism and exacerbates kidney IRI.
- Genetic deletion of Ybx3 confers protection against kidney IRI, suggesting DbpA as a potential therapeutic target for preserving kidney function after injury.
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