ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of intraperitoneal heparin on the adhesion of highly lung metastasic adenoid cystic carcinoma cell line (ACC-M) in lung.</p><p><b>METHODS</b>3HTdR labeled ACC-M cells were injected by intravenous infusion after intraperitoneal injection with 200 units heparin. 4 mice of each group were killed at 2 h, 6 h and 18 h after infusion. The relative radioactivity (CPM) in lung and liver was detected.</p><p><b>RESULTS</b>3H-activity per gram in lung of heparin group was lower than control at the same time. There was significant difference between the two groups (P < 0.001). There was no difference between the two groups in liver (P > 0.05).</p><p><b>CONCLUSION</b>The results of this study suggest that the highly lung metastasis characteristic of ACC-M may be partially inhabited by the use of intraperitoneal heparin.</p>