Ectopic Over-expression of Oncogene Pim-2 Induce Malignant Transformation of Nontumorous Human Liver Cell Line L02.
10.3346/jkms.2010.25.7.1017
- Author:
Ke REN
1
;
Wentao DUAN
;
Yujun SHI
;
Bo LI
;
Zuojin LIU
;
Jiangping GONG
Author Information
1. Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China. gongjianping11@126.com
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Pim-2;
Malignant Transformation;
Liver Cell;
L02
- MeSH:
Animals;
Apoptosis;
Cell Line;
Cell Movement;
Cell Proliferation;
*Cell Transformation, Neoplastic;
Humans;
Liver/pathology/physiology;
*Liver Neoplasms/genetics/pathology;
Mice;
Mice, Nude;
Neoplasm Transplantation;
*Oncogenes;
Protein-Serine-Threonine Kinases/genetics/*metabolism;
Proto-Oncogene Proteins/genetics/*metabolism
- From:Journal of Korean Medical Science
2010;25(7):1017-1023
- CountryRepublic of Korea
- Language:English
-
Abstract:
In order to prove that ectopic over-expression of Pim-2 could induce malignant transformation of human liver cell line L02, three groups of cells were set up including human liver cell line L02 (L02), L02 cells transfected with Pim-2 gene (L02/Pim-2) and L02 cells transfected with empty-vector (L02/Vector). Pim-2 expression levels were detected. The morphology, proliferation level, apoptosis rate and migration ability of the cells were detected respectively. Then the cells were subcutaneously inoculated into athymic mice and the microstructures of the neoplasm were observed. Compared with the controls, Pim-2 expression levels were significantly higher in L02/Pim-2 cells (P<0.05), and their morphology had obvious malignant changes. They also showed a significantly increased proliferation rate (P<0.05) and migration capacity (P<0.05), as well as a significantly decreased apoptosis rate (P<0.05). Only the athymic mice inoculated with L02/Pim-2 cells could generate neoplasm, and the morphology of the neoplasm coincided with that of the hepatoma. The results manifest that ectopic Pim-2 gene could be stably expressed in L02/Pim-2 cells. Both the morphological and biological changes of L02/Pim-2 cells demonstrate the trend of malignant transformation. L02/Pim-2 cells could generate hepatoma in athymic mice. In conclusion, Pim-2 could induce malignant transformation of human liver cell line L02.
