Document Detail


Decrease in fibrin content of venous thrombi in selectin-deficient mice.
MedLine Citation:
PMID:  12591228     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to quantify the fibrin content of thrombi produced in a mouse model of venous thrombosis and correlate this to thrombus mass. The role of P-selectin, E-selectin, and IL-10 on thrombus fibrin content was analyzed using knockout (KO) mice. Five groups of mice were evaluated: control (N = 10), P-selectin KO (N = 7), E-selectin KO (N = 5), combined E-/P-selectin KO (N = 12), and IL-10 KO (N = 10). Venous thrombosis was induced by ligation of the infrarenal IVC. Mice were sacrificed on postoperative days (POD) 2 and 6. Thrombus mass was calculated. Sections of IVC were stained with an antibody that cross reacts with mouse fibrin. The distribution of RGB color pixels was generated from digitized micrographs of the thrombus of each animal. The mean pixel value for each group was compiled and analyzed using 2-way ANOVA. Mean pixel value per group was correlated with the mean thrombus mass per group. Color analysis demonstrated significant decreases in the analyzed fibrin content on POD-2 between the control vs E-/P-selectin KO (P < 0.05) and control vs IL-10 KO (P < 0.05) groups. In addition, significantly less fibrin staining was noted on POD-6 between the control vs E-selectin KO (P = 0.03), control vs P-selectin KO (P = 0.01), and control vs E-/P-selectin KO (P < 0.01). There was a strong overall correlation between the mean pixel value for each group and the thrombus mass (R = 0.964; P < 0.01). This study demonstrates a difference in fibrin content of thrombi produced in animals deficient in E-selectin, P-selectin, and IL-10, supporting their importance in thrombus amplification, fibrin formation, and the mass of thrombus formed.
Authors:
V V Sullivan; A E Hawley; D M Farris; B S Knipp; A J Varga; S K Wrobleski; P Thanapron; M J Eagleton; D D Myers; J B Fowlkes; T W Wakefield
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of surgical research     Volume:  109     ISSN:  0022-4804     ISO Abbreviation:  J. Surg. Res.     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-02-19     Completed Date:  2003-03-07     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  0376340     Medline TA:  J Surg Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1-7     Citation Subset:  IM    
Affiliation:
Jobst Vascular Research Laboratories, University of Michigan, Department of Surgery, Section of Vascular Surgery, Ann Arbor, Michigan 48109, USA. vitas@umich.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
E-Selectin / genetics,  physiology*
Fibrin / analysis*
Immunohistochemistry
Interleukin-10 / deficiency,  genetics,  physiology
Leukocyte Count
Lymphocyte Count
Mice
Mice, Knockout
Microscopy
Monocytes
Neutrophils
P-Selectin / genetics,  physiology*
Time Factors
Venous Thrombosis / metabolism*,  pathology
Grant Support
ID/Acronym/Agency:
R01 63148//PHS HHS
Chemical
Reg. No./Substance:
0/E-Selectin; 0/P-Selectin; 130068-27-8/Interleukin-10; 9001-31-4/Fibrin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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