Induction of p53-mediated apoptosis and recovery of chemosensitivity through p53 transduction in human glioblastoma cells by cisplatin

  • Authors:
    • Chang-Min Park
    • Myung-Jin Park
    • Hee-Jin Kwak
    • Sang-Ik Moon
    • Doo-Hyun Yoo
    • Hyung-Chahn Lee
    • In-Chul Park
    • Chang Hun Rhee
    • Seok-Il Hong
  • View Affiliations

  • Published online on: January 1, 2006     https://doi.org/10.3892/ijo.28.1.119
  • Pages: 119-125
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Cisplatin is a DNA-damaging chemotherapeutic drug that may have a role in the adjuvant chemotherapy of several solid tumors, such as malignant glioblastoma, and the status of p53 tumor suppressor protein is a critical determinant of cisplatin chemosensitivity. In the present study, we showed the relationship of p53 status and chemosensitivity of cisplatin between two human malignant glioblastoma cell lines, A172 and T98G, harboring wild-type and mutant-type p53, respectively. Cisplatin was found to be more cytotoxic to A172 than T98G cells in a time- and concentration-dependent manner. Cisplatin-induced cytotoxicity manifested as apoptosis, characterized by genomic DNA fragmentation, nuclear condensation and an increase in sub-G1 population. Cisplatin induced the accumulation of p53 and p21 proteins in A172 cells, but not in T98G cells. The introduction of the adenovirus-mediated wild-type p53 gene into T98G cells resulted in the decrease of viability as well as the increase in sub-G1 population with p53 accumulation, activation of caspase-3 protease and release of cytochrome c from the mitochondria. These data strongly suggest that the expression of p53 is essential for the cytotoxic effect of cisplatin in human malignant glioblastoma cells, A172 and T98G, and the introduction of apoptotic signal molecules, such as p53, will be beneficial to achieve chemosensitivity in malignant glioma.

Related Articles

Journal Cover

January 2006
Volume 28 Issue 1

Print ISSN: 1019-6439
Online ISSN:1791-2423

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Park C, Park M, Kwak H, Moon S, Yoo D, Lee H, Park I, Rhee C and Hong S: Induction of p53-mediated apoptosis and recovery of chemosensitivity through p53 transduction in human glioblastoma cells by cisplatin. Int J Oncol 28: 119-125, 2006
APA
Park, C., Park, M., Kwak, H., Moon, S., Yoo, D., Lee, H. ... Hong, S. (2006). Induction of p53-mediated apoptosis and recovery of chemosensitivity through p53 transduction in human glioblastoma cells by cisplatin. International Journal of Oncology, 28, 119-125. https://doi.org/10.3892/ijo.28.1.119
MLA
Park, C., Park, M., Kwak, H., Moon, S., Yoo, D., Lee, H., Park, I., Rhee, C., Hong, S."Induction of p53-mediated apoptosis and recovery of chemosensitivity through p53 transduction in human glioblastoma cells by cisplatin". International Journal of Oncology 28.1 (2006): 119-125.
Chicago
Park, C., Park, M., Kwak, H., Moon, S., Yoo, D., Lee, H., Park, I., Rhee, C., Hong, S."Induction of p53-mediated apoptosis and recovery of chemosensitivity through p53 transduction in human glioblastoma cells by cisplatin". International Journal of Oncology 28, no. 1 (2006): 119-125. https://doi.org/10.3892/ijo.28.1.119