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Gene targeting in hemostasis. tissue factor.

N Mackman1

  • 1The Scripps Research Institute, Depts. of Immunology & Vascular Biology, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA. nmackman@scripps.edu

Frontiers in Bioscience : a Journal and Virtual Library
|February 15, 2001
PubMed
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Tissue factor (TF) initiates blood clotting and can cause dangerous thrombosis in diseases like sepsis. Gene targeting of TF caused embryonic lethality, suggesting a critical role in vascular development.

Area of Science:

  • Biochemistry
  • Vascular Biology
  • Hematology

Background:

  • Tissue factor (TF) is the main trigger for blood coagulation.
  • TF:FVIIa complex formation at vascular injury sites promotes fibrin deposition for hemostasis.
  • Dysregulated TF activity contributes to thrombosis in sepsis, atherosclerosis, and cancer.

Purpose of the Study:

  • To investigate the essential roles of Tissue Factor in physiological and pathological processes.
  • To explore the function of TF beyond hemostasis, including its involvement in tumor biology and inflammation.
  • To understand the consequences of TF deficiency during embryonic development.

Main Methods:

  • Review of existing literature on Tissue Factor function.
  • Analysis of studies involving TF gene targeting and its phenotypic outcomes.

Related Experiment Videos

  • Examination of TF's role in various disease models and biological processes.

    • Main Results:

    • TF is crucial for initiating blood coagulation and limiting hemorrhage.
    • TF also drives pathological thrombosis in conditions such as sepsis and cancer.
    • TF gene targeting led to embryonic lethality, indicating an essential role in yolk sac vasculature development.

    Conclusions:

    • Tissue Factor plays a dual role in hemostasis and pathological thrombosis.
    • TF is indispensable for embryonic vascular development, as evidenced by gene-targeting studies.
    • Further research into TF's multifaceted functions is warranted for therapeutic applications.