Vol 47, No 1 (2009)
Original paper
Submitted: 2011-12-19
Published online: 2009-05-08
The influence of unfractionated and low-molecular weight heparins on the properties of human umbilical vein endothelial cells (HUVEC).
Katarzyna Gasowska, Beata Naumnik, Katarzyna Klejna, Michał Myśliwiec
DOI: 10.2478/v10042-009-0008-0
·
Folia Histochem Cytobiol 2009;47(1):17-23.
Vol 47, No 1 (2009)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2009-05-08
Abstract
Heparins, as anticoagulants widely used in the prophylaxis and treatment of many conditions connected with hypercoagulability, have a potent effect on the vascular endothelium. Unfractionated Heparin (UFH) is characterized by relatively low biological accessibility, short activity time, binding of numerous proteins, as well as unfavorable influence on endothelium and blood platelets. Low-Molecular Weight Heparins (LMWHs), formed by chemical and enzymatic UFH depolymerizations, show a significantly more favorable impact on endothelium, which was confirmed on the HUVEC cultures study models. The studies on the heparins' modulation of angiogenesis process proved the superiority of LMWHs over UFH. It was connected with a better deactivation of growth factors' receptors (e.g. for VEGF165, FGF-2). Comparing the effects of LMWHs and UFH on haemostatic and antiangiogenic properties of HUVEC, significant differences were found as well. A new effect, engaging these compounds in the pathomechanism of an excessive osteoclastogenesis via osteoprotegerin /RANKL/RANK pathway has been discovered recently.
Abstract
Heparins, as anticoagulants widely used in the prophylaxis and treatment of many conditions connected with hypercoagulability, have a potent effect on the vascular endothelium. Unfractionated Heparin (UFH) is characterized by relatively low biological accessibility, short activity time, binding of numerous proteins, as well as unfavorable influence on endothelium and blood platelets. Low-Molecular Weight Heparins (LMWHs), formed by chemical and enzymatic UFH depolymerizations, show a significantly more favorable impact on endothelium, which was confirmed on the HUVEC cultures study models. The studies on the heparins' modulation of angiogenesis process proved the superiority of LMWHs over UFH. It was connected with a better deactivation of growth factors' receptors (e.g. for VEGF165, FGF-2). Comparing the effects of LMWHs and UFH on haemostatic and antiangiogenic properties of HUVEC, significant differences were found as well. A new effect, engaging these compounds in the pathomechanism of an excessive osteoclastogenesis via osteoprotegerin /RANKL/RANK pathway has been discovered recently.
Title
The influence of unfractionated and low-molecular weight heparins on the properties of human umbilical vein endothelial cells (HUVEC).
Journal
Folia Histochemica et Cytobiologica
Issue
Vol 47, No 1 (2009)
Article type
Original paper
Pages
17-23
Published online
2009-05-08
Page views
2992
Article views/downloads
2025
DOI
10.2478/v10042-009-0008-0
Bibliographic record
Folia Histochem Cytobiol 2009;47(1):17-23.
Authors
Katarzyna Gasowska
Beata Naumnik
Katarzyna Klejna
Michał Myśliwiec
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