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Related Experiment Videos

Factor X-activating procoagulant in normal and malignant breast tissue.

K el-Baruni1, I Taylor, S Roath

  • 1University Department of Haematology, Southampton General Hospital, U.K.

Hematological Oncology
|November 1, 1990
PubMed
Summary
This summary is machine-generated.

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Factor X-activating activity (FXAA) was found in both normal and malignant breast tissue. This serine protease activity, similar in both tissue types, is linked to a tissue factor-factor VII complex.

Area of Science:

  • Biochemistry
  • Oncology
  • Hematology

Background:

  • Factor X-activating activity (FXAA) is crucial in coagulation.
  • Understanding FXAA in breast tissue is important for diagnostics and therapeutics.

Purpose of the Study:

  • To determine the presence and characteristics of FXAA in normal and malignant breast tissue.
  • To investigate the relationship between FXAA and tissue hemoglobin levels.

Main Methods:

  • Chromogenic assay used to measure FXAA in 38 breast tissue samples.
  • Inhibition studies conducted using various agents (e.g., DFP, PMSF, phospholipase C).

Main Results:

  • FXAA detected in all tested breast tissues, regardless of pathology.

Related Experiment Videos

  • Similar FXAA levels observed in normal and malignant tissues.
  • FXAA correlated with hemoglobin in normal breast tissue (p < 0.02), but not in tumors.

    • Conclusions:

    • FXAA in breast tissue is a serine protease, likely a tissue factor-factor VII complex.
    • FXAA is present in both normal and malignant breast tissue.
    • Observed FXAA in normal tissue may be an artifact of sample preparation.