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Eur J Gynaecol Oncol. 2005;26(4):407-10.

The activity of cancer procoagulant in cases of uterine leiomyomas.

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1
Department of Gynecology, Medical University of Bialystok, Bialystok, Poland.

Abstract

PURPOSE:

It is currently believed that cancer procoagulant (CP), an enzymatic protein, is a product of malignant neoplastic cells. The present study was designed to test whether it is also synthesized by benign neoplastic cells, namely uterine leiomyomas.

MATERIALS AND METHODS:

We determined the activity of CP in the blood serum of women with uterine leiomyomas (N = 24), normal women (N = 15), and genital cancer patients (N = 6) by the coagulative method according to Gordon and Benson. Also, the CP activity in 10% tissue homogenates of uterine leiomyomas, normal uterine muscle and tissues of cervical and endometrial carcinoma was determined by the chromogenic method according to Colucci et al.

RESULTS:

The mean CP activity in the sera of women with uterine leiomyomas was 181.1 seconds (s) +/- 19.9 s, in healthy women--293.2 s +/- 33.8 s, and in genital cancer patients--78.8 +/- 18.5 s (all differences: p < 0.001). Similarly, in homogenates of uterine leiomyomas the CP activity was 19.6 +/- 3.8 nmoles pNa/ml, in normal uterine muscle it was 13.2 +/- 2.2 nmoles pNa/ml, and in cancerous tissue--28.0 +/- 6.6 nmol pNa/ml (all values being significantly different from each other). There was a strong correlation (r = -0.8122; p < 0.001) between the CP activity in uterine leiomyomas and serum activity, suggesting that the source of the serum CP activity was from the leiomyoma. The coagulation time of 120 to 240 s by the Gordon and Benson method supported the diagnosis of uterine leiomyoma, and a value below 120 s--the suspicion of genital cancer.

CONCLUSIONS:

Uterine leiomyomas, representing benign genital neoplasia, synthesize CP and are the likely origin of CP activity in blood, as has been described for malignant tumors, but to a lesser degree. There may be a role for CP as a tumor marker of genital neoplasia.

PMID:
16122189
[Indexed for MEDLINE]
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