To investigate the presence of α-defensin-1 in ischemic stroke thrombi and its role in inducing NETosis.
Key Findings:
α-Defensin-1 was detected in all analyzed thrombi, predominantly in regions enriched with neutrophils.
NETs were prominently featured in thrombi, as shown by citrullinated histone H3 staining.
Exposure to recombinant α-defensin-1 significantly increased NETosis at 10 µg/mL compared to unstimulated controls.
Interpretation:
α-Defensin-1 is a structural component of stroke thrombi and induces NETosis in vitro, indicating a link between neutrophil degranulation and thrombus composition.
Limitations:
Study involved a small sample size of 6 patients.
In vitro findings may not fully replicate in vivo conditions.
Conclusion:
α-Defensin-1 may play a significant role in the composition of stroke thrombi and the induction of NETosis.
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