| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4304818 | Journal of Surgical Research | 2007 | 8 Pages |
BackgroundRecent experimental studies have shown that intraperitoneal administration of taurolidine/heparin causes a reduction of local tumor growth after laparoscopy in rat models. It might be that the anti-adherent activities of these agents are responsible for this effect. In this study we investigated the adhesion molecules E-cadherin, β1-integrin, and CD44.Materials and methodsFollowing a 10,000 colon adenocarcinoma cells’ (DHD/K12/TRb) intraperitoneal application a cecum resection and a partial parietal peritoneum resection (1 × 1 cm) were performed using a three trocar technique in 30 BD IX rats. After randomization in two groups, the cecum suture line and the parietal peritoneal defect were either lavaged with 1 mL of 0.5% taurolidine/10 IU heparin or with equal amounts of 0.9% normal saline solution. Rats were sacrificed four weeks after operation and total tumor growth was determined. E-cadherin, β1-integrin, and CD44 were assessed immunohistochemically on the tumor tissue.ResultsThe expression of E-cadherin was significantly reduced to 46.7% (complete loss of staining) in the taurolidine/heparin group. Although no significant difference was detected concerning the β1-integrin and CD44 expression, a slightly reduced expression level with 26.7% of negative staining in metastases of the taurolidine/heparin group was observed. The total tumor weight (171.1 ± 181.2 mg) as well as the total number of tumor lesions was also reduced by the substances compared to the control group (283.2 ± 91.4 mg).ConclusionsTaurolidine/heparin led to a significant reduction of local tumor growth. Additionally a reduction of the expression of E-cadherin was observed. However, the biological behavior of this molecule is multivariant, controversial and still unclear. Further studies should elucidate its role in the epithelial tumor genesis.
