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Related Experiment Videos

ADP activation induces bFGF binding to platelets in vitro.

B Akerblom1, T L Lindahl, A Larsson

  • 1Department of Medical Sciences, University Hospital, Uppsala, Sweden.

Upsala Journal of Medical Sciences
|April 17, 2003
PubMed
Summary

Basic fibroblast growth factor (bFGF) binds to activated platelets, potentially increasing its local concentration during myocardial infarction and tumor growth. This interaction may inhibit platelet aggregation, suggesting a novel therapeutic role for bFGF.

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Area of Science:

  • Biochemistry
  • Hematology
  • Cardiovascular Research

Background:

  • Basic fibroblast growth factor (bFGF) exhibits angiogenic properties and is implicated in tumor growth and myocardial infarction.
  • Platelets play a significant role in both tumor progression and myocardial infarction pathogenesis.

Purpose of the Study:

  • To investigate the binding of bFGF to human platelets.
  • To determine the effect of bFGF on platelet activation and aggregation.

Main Methods:

  • Flow cytometry was employed to quantify bFGF binding to platelets.
  • Platelet-rich plasma was utilized to assess the impact of recombinant bFGF on fibrinogen binding and platelet aggregation.

Main Results:

  • Platelet activation by adenosine diphosphate (ADP) significantly increased bFGF binding to platelets.

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  • The presence of bFGF bound to activated platelets could lead to elevated local concentrations in pathological conditions.
  • Recombinant bFGF addition to platelet-rich plasma reduced the percentage of fibrinogen-positive platelets, indicating an inhibitory effect on aggregation.

    • Conclusions:

    • bFGF binds to activated platelets, potentially concentrating the factor at sites of myocardial infarction and tumors.
    • bFGF demonstrates an inhibitory effect on platelet aggregation, suggesting a potential therapeutic application in cardiovascular and oncological conditions.