Abstract | OBJECTIVE: APPROACH AND RESULTS: Groups were as follows: treatment arm: animals received P-selectin or vWF aptamer inhibitors or enoxaparin (n=3 per group). Controls received no treatment (n=3). Prophylactic arm: animals received P-selectin inhibitor (n=4) or vWF inhibitor (n=3). Treatment arm: P-selectin-inhibitor demonstrated a significant improvement in vein recanalization by magnetic resonance venography (73% at day 21), and significantly decreased vein wall collagen, compared with all groups. Anti- P-selectin equaled enoxaparin in maintaining valve competency by ultrasound. All control animals had compromised valve competency post thrombosis. Prophylactic arm: animals receiving P-selectin and vWF inhibitors demonstrated improved vein recanalization by magnetic resonance venography versus controls (80% and 85%, respectively, at day 21). Anti- P-selectin protected iliac valve function better than anti-vWF, and both improved valve function versus controls. No adverse bleeding events were observed. CONCLUSIONS: The P-selectin inhibitor aptamer promoted iliac vein recanalization, preserved valve competency, and decreased vein wall fibrosis. The results of this work suggest that P-selectin inhibition maybe an ideal target in the treatment and prophylaxis of deep VT, warranting clinical trials.
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Authors | Jose A Diaz, Shirley K Wrobleski, Christine M Alvarado, Angela E Hawley, Nichole K Doornbos, Patrick A Lester, Suzan E Lowe, Joy E Gabriel, Karen J Roelofs, Peter K Henke, Robert G Schaub, Thomas W Wakefield, Daniel D Myers Jr |
Journal | Arteriosclerosis, thrombosis, and vascular biology
(Arterioscler Thromb Vasc Biol)
Vol. 35
Issue 4
Pg. 829-37
(Apr 2015)
ISSN: 1524-4636 [Electronic] United States |
PMID | 25657307
(Publication Type: Comparative Study, Journal Article, Research Support, N.I.H., Extramural)
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Copyright | © 2015 American Heart Association, Inc. |
Chemical References |
- ARC15105
- ARC5692
- Aptamers, Nucleotide
- Enoxaparin
- Fibrinolytic Agents
- P-Selectin
- von Willebrand Factor
- Fibrin
- Collagen
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Topics |
- Animals
- Aptamers, Nucleotide
(pharmacology)
- Blood Coagulation
(drug effects)
- Collagen
(metabolism)
- Disease Models, Animal
- Enoxaparin
(pharmacology)
- Fibrin
(metabolism)
- Fibrinolytic Agents
(pharmacology)
- Fibrosis
- Iliac Vein
(diagnostic imaging, drug effects, metabolism, pathology)
- Leukocytes
(drug effects, metabolism)
- Magnetic Resonance Angiography
- P-Selectin
(antagonists & inhibitors, metabolism)
- Papio
- Phlebography
(methods)
- Platelet Aggregation
(drug effects)
- Time Factors
- Ultrasonography
- Venous Thrombosis
(diagnostic imaging, metabolism, pathology, prevention & control)
- Venous Valves
(drug effects, metabolism, pathology)
- von Willebrand Factor
(antagonists & inhibitors, metabolism)
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