• 1.Department of Hepatobiliary Surgery Ⅱ, The Second Affiliated Hospital of Kunming Medical College, Kunming 650101, China;;
  • 2.Kunming Medical College, Kunming 650031, China;
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Objective  To investigate the effect of angiostatin gene combined with somastatin on inhibiting proliferation of human pancreatic cancer cell BXPC-3 and endothelial cell of vascular ECV-304 and on inducing their apoptosis in vitro. Methods  The pcDNA3/angio was transfected BXPC-3 by liposome-mediated gene transfer method. RT-PCR and Western blot were used to detect the expression of angiostatin gene. In vitro, MTT and flow cytometry (FCM) were used to detect whether angiostatin gene combined with somastatin could effect the growth inhibition of BXPC-3 and ECV-304 cells. Results  Angiostatin was expressed and secreted by transfected BXPC-3. The growth of BXPC-3 was inhibited by certain concentration of somatostatin (≥10 μg/ml, P<0.01), which was dependent on the dose of somatostatin in a concentration extent; Simultaneity apoptosis was induced (P<0.01). But the growth of ECV-304 was not inhibited with somatostation (P gt;0.05). Angiostatin could inhibit the growth of ECV-304 and induced apoptosis (P<0.01), but it had no effect on the growth of BXPC-3 (P gt;0.05). Angiostation gene combined with somatostation could inhibit the growth both of BXPC-3 and ECV-304 (P<0.01), and induce apoptosis of them (P<0.01); but the effect couldn’t be additived. Conclusions  ①Somatostatin directly inhibits the proliferation of human pancreatic cancer cells and induces apoptosis, but it doesn’t directly inhibit angiogenesiso of human pancreatic cancer. ②Angiostatin specially inhibits the proliferation of endothelial cell of vascular and induces apoptosis. Angiostatin could inhibit angiogenesis of human pancreatic cancer to induce necrosis of cancer cell.

Citation: ZHU Hong,GUO Yongzhang,YANG Hongwei,ZOU Hao,WANG Kun,HUANG Songquan. Angiostatin Gene Combined with Somatostatin in Growth Inhibition of Human Pancreatic Cancer in Vitro. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2009, 16(6): 460-465. doi: Copy