• The Seventh Department of Genaral Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin 150086, China;
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Objective  To explore the effects of intraperitoneal chemotherapy with fluorouracil (FU) on the growth and metastasis of tumor cells in carbon dioxide (CO2) pneumoperitoneum.
Methods  Fifty male H-22 mice of clean grade were selected and randomly assigned into 5 groups in each group with 10: simple implantation group, pneumoperitoneum group, pneumoperitoneum and NS group, pneumoperitoneum and low concentration (5.0 g/L) of FU group and pneumoperitoneum and high concentration (10.0 g/L) of FU group. All mice were executed after 11 days to observe the weight and the implantation of tumor in abdominal wall. Then the expressions of proliferating cell nuclear antigen (PCNA) and vascular endothelial growth factor (VEGF) were detected by immunohistochemistry.
Results  The tumor weight was significantly higher in pneumoperitoneum and high concentration of FU group compared with other groups except pneumoperitoneum and low concentration of FU group (P<0.05, P<0.01 ). The inhibition rate of tumor was 64.5% in pneumoperitoneum and high concentration of FU group. The diameter of portsite implantation nodus was significantly bigger in pneumoperitoneum and NS group compared with pneumoperitoneum and low concentration of FU group and pneumoperitoneum and high concentration of FU group (P<0.01). The expressions of PCNA and VEGF of ascites and portsite implantation nodus were significantly different in every group, respectively (P<0.05, P<0.01).
Conclusion  There is inhibitive effect of intraperitoneal chemotherapy with high concentration of FU on the growth and metastasis of S-180 tumor cells in CO2 pneumoperitoneum, which may be associated with downregulation of PCNA and VEGF expressions.

Citation: SUN Tiewei,LI Qiang,WANG Feng. Effects of Fluorouracil Against The Growth and Metastasis of Tumor Cells in Carbon Dioxide Pneumoperitoneum. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2009, 16(7): 545-549. doi: Copy