Thromb Haemost 2006; 95(02): 272-281
DOI: 10.1160/TH05-02-0099
Platelets and Blood Cells
Schattauer GmbH

Neutrophils modulate post-thrombotic vein wall remodeling but not thrombus neovascularization

Peter K. Henke
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Manu R. Varma
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
K. Barry Deatrick
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Nicholas A. Dewyer
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Erin M. Lynch
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Andrea J. Moore
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Derek A. Dubay
2   Section of General Surgery, Department of Surgery
,
Pasu Sukheepod
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Charles G. Pearce
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Gilbert R. Upchurch Jr.
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
,
Steven L. Kunkel
3   Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, USA
,
Michael G. Franz
2   Section of General Surgery, Department of Surgery
,
Thomas W. Wakefield
1   Jobst Vascular Research Laboratories, Section of Vascular Surgery
› Author Affiliations
Financial support: Supported by Lifeline Foundation, vonLeibig Foundation, and NIH K-08 HL#69780 (PKH) and HL #70766 (TWW).
Further Information

Publication History

Received 09 February 2005

Accepted after revision 16 January 2005

Publication Date:
28 November 2017 (online)

Summary

Early deep venous thrombosis (DVT) resolution is associated with neutrophil (PMN) influx. This study examined the role of PMNs in thrombus neovascularization and vein wall injury after DVT. A rat model of DVT by inferior vena cava (IVC) ligation was performed with control serum or rabbit anti-rat PMN serum administered perioperatively with sacrifice at 2 and 7 days. At 2 days, neutropenic rats had 1.6-fold larger thrombi (P = .04) and 1.4-fold higher femoral venous pressures by water manometry (P = .008) but no difference in thrombus neovascularization was observed. By7 days, DVT sizes were similar, but vein wall injury persisted in the neutropenic rats with a 2.0-fold increase in vein wall stiffness by microtensiometry (P< .05), as well asa 1.2-fold increased thickness (P = .04). Collagen and profibrotic growth factors were significantly increased in neutropenic IVC at7 days (all P< .05).Vein wall and intrathrombus uPA by Western immunoblotting, and intrathrombus MMP-9 gelatinase activity were significantly less in neutropenic rats than controls (P < .001). Conversely, MMP-2 was significantly elevated in neutropenic IVC at 2 days after DVT. However, neutropenia induced 24 hours after DVT formation resulted in no significant increase in vein wall stiffness or collagen levels at 7 days, despite 1.4-fold larger thrombi (P < .05). These data suggest a critical early role for PMN in post DVT vein wall remodeling.

* Presented in part at the 65th Annual Meeting of the Society of University Surgeons, February 13, 2004, St. Louis, MO, USA.


 
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