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Updated: May 14, 2026

Ferric Chloride-induced Murine Thrombosis Models
Published on: September 5, 2016
Molecular circuits in thrombosis and inflammation
1Coagulation Biology Laboratory, Oklahoma Medical Research Foundation, Howard Hughes Medical Institute, 825 NE 13th Street, Oklahoma City, OK 73104, USA. esmonc@omrf.org
Histones, particularly H4, drive thrombosis by activating platelets and inhibiting thrombomodulin. Blocking histone activity offers a potential therapeutic strategy for various inflammatory and injury-related conditions.
Area of Science:
- Hematology
- Immunology
- Molecular Biology
Background:
- Inflammatory cytokines activate coagulation via tissue factor, thrombomodulin, and plasminogen activator inhibitor.
- Infections and tissue injury release histone-DNA complexes (extracellular traps, nucleosomes).
Purpose of the Study:
- To investigate the prothrombotic mechanisms of histone-DNA complexes.
- To evaluate the therapeutic potential of blocking histone activity.
Main Methods:
- Infusion of histones into mice to observe thrombotic effects.
- Assessment of platelet activation and thrombomodulin inhibition by histones.
- Evaluation of DNAase and anti-histone H4 treatments on thrombotic responses.
- Analysis of toll-like receptor activation by histone-DNA complexes.
Main Results:
- Histone-DNA complexes strongly activate platelets and inhibit thrombomodulin, promoting thrombus formation.
- Histone H4 is the most potent activator.
- DNAase or blocking histone H4 significantly reduces thrombotic responses.
- Histone-DNA complexes activate toll-like receptors 2, 4, and 9, amplifying inflammation.
Conclusions:
- Histone-mediated pathways are critical drivers of thrombosis in inflammatory conditions.
- Targeting histone activity presents a promising therapeutic avenue for sepsis, trauma, and various injuries.
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