논문검색
Author Sung-Bae Kim, M.D.1, Myung-Hwan Kim, M.D.1, Sung-Koo Lee, M.D.1, Tae-Won Kim, M.D.1, Cheolwon Suh, M.D.1, Jeong-Sik Shin, M.Sc.2, Jung-Sun Park, M.Sc.2, Eun-Soon Kim, M.Sc.2, Gyungyub Gong, M.D.3, Jung-Shin Lee, M.D.1, Woo-Kun Kim, M.D.1 and Sang-Hee Kim, M.D.2
Place of duty Departments of 1Medicine and 3Pathology, Asan Medical Center, University of Ulsan College of Medicine; 2Asan Institute of Life Sciences and Technology, Seoul, Korea
Title Growth Suppression and Induction of Chemosensitivity in Human Gallbladder Epithelial Carcinoma Cells (GBCE) by Adenovirus-Mediated Transfer of the Wild-type p53 Gene
Publicationinfo Cancer Research and Treatment 2003 Dec; 035(06): 521-527.
Key_word p53, Adenoviral vector, Chemosensitivity, Gallbladder cancer
Full-Text
Abstract Purpose: Mutations in the p53 gene are reported in 50∼90% of gallbladder and bile duct cancer, and have been implicated in chemoresistance. We undertook this study to determine whether the introduction of the wild type p53 gene into GBCE (human gallbladder cancer cell line with a heterozygous p53 mutation) by an adenoviral vector could increase the sensitivity of the cell to 5-FU, a commonly used drug in the treatment of gallbladder cancer.

Materials and Methods: GBCE cells were transfected with either Ad/p53 or Ad/ΔE1 in the presence of 5-FU. Gene expression was confirmed by western blotting. Nude mice were injected subcutaneously with GBCE cells. When tumors formed, intratumoral injection of Ad/p53 was performed. Reduction of tumor size was compared in two weeks of Ad/p53 gene transfection.

Results: Ad/53 transfection induced a dose-dependent inhibition of tumor growth. Tumor colony formation was more inhibited with p53 gene transfection than with mock transfection in the presence of 5-FU. The reduction in tumor size was more pronounced with p53 transfection than with mock infection.

Conclusion: These treatment modalities could be utilized in the treatment of p53 mutant human gallbladder cancers. (Cancer Research and Treatment 2003;35:521⁣527)