Thromb Haemost 1991; 65(01): 059-063
DOI: 10.1055/s-0038-1647454
Original Article
Schattauer GmbH Stuttgart

Tissue Factor Released from Leukemic Cells

Tatsumi Kubota
The Third Department of lnternal Medicine, Gunma University School of Medicine, Maebashi, Japan
,
Kiyoshi Andoh
The Third Department of lnternal Medicine, Gunma University School of Medicine, Maebashi, Japan
,
Hiroto Sadakata
The Third Department of lnternal Medicine, Gunma University School of Medicine, Maebashi, Japan
,
Hiroshi Tanaka
The Third Department of lnternal Medicine, Gunma University School of Medicine, Maebashi, Japan
,
N Kobayashi
The Third Department of lnternal Medicine, Gunma University School of Medicine, Maebashi, Japan
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Publikationsverlauf

Received 22. Mai 1990

Accepted after revision 28. August 1990

Publikationsdatum:
02. Juli 2018 (online)

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Summary

Using clotting assay and radioimmunoassay (RIA), tissue factor activity (TFA) and TF related antigen (TFR:AG) were determined in an extracellular culture medium of HL-60 cells. After 12 h incubation, TFA and TFR:AG in the medium with endotoxin (EDX: 1 μg/ml) reached maximums which were 1.8 and 2.1 times greater than those in the medium without EDX, respectively. In the leukemic cells of 10 patients with acute nonlymphoid leukemia (ANLL), TFR:AG showed a significant correlation with TFA (p <0.01). On day 1 of the induction chemotherapy, TFR:AG in the 7 patients with DIC significantly increased to 288.9 ± 153.1 ng/ml (p <0.01), whereas no increase in TFR: AG was recognized in the 3 patients without DIC. These results suggest that TF may be released from leukemic cells into the culture medium or blood stream, and that this may correlate with the development of DIC.