Effect of NF- κ B inhibitor PDTC on VEGF and endostatin expression of mice with Lewis lung cancer
10.1016/S1995-7645(14)60319-9
- Author:
Ping GAO
1
;
Ya-Jie GAO
1
;
Hong-Lu LIANG
1
Author Information
1. Oncology Department, First Affiliated Hospital of Dalian Medical University
- Publication Type:Journal Article
- Keywords:
Endostatin;
Mice with Lewis lung cancer;
PDTC;
Pyrrolidine dithiocarbamate hydrochloride;
Vascular density;
Vascular endothelial growth factor
- From:
Asian Pacific Journal of Tropical Medicine
2015;8(3):220-224
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the effects of NF- κ B inhibitor pyrrolidine dithiocarbamate hydrochloride (PDTC) on vascular endothelial growth factor (VEGF) and endostatin expression in mice with Lewis lung cance; and its mechanism. Methods: Mice survival rate and anti-tumor effects were observed in different concentrations of NF- κ B inhibitor PDTC after the Lewis lung cancer mice model was established. VEGF and endostatin expressions were detected by immunohistochemical assay. Results: Lewis lung cancer was be inhibited by 0.5 mg/kg, 1.5 mg/kg and 3.0 mg/kg of NF- κ B inhibitor PDTC (. P<0.05). Microvessel density (MVD) in 0.5 mg/kg, 1.5 mg/kg and 3.0 mg/kg NF- κ B inhibitor PDTC groups were significantly lower than the control group (. P<0.05). Immunohistochemical assay results showed that VEGF and endostatin expressions in the 0.5 mg/kg, 1.5 mg/kg and 3.0 mg/kg NF-. κ B inhibitor PDTC groups were significantly lower than the control group (. P<0.05). Western blot results also showed that NF- κ B inhibitor PDTC could inhibit VEGF and endostatin expressions in tumor tissues. Conclusions: NF- κ B inhibitor PDTC can inhibit tumor formation and reduce tumor angiogenesis in mice with Lewis lung cancer; and its mechanism maybe associated to VEGF and endostatin down-regulation.
