Cancer has become the first among the 10 major death causing factors in Taiwan. Glioblastoma multiforme (GBM) is the most common malignant tumor in adult human brain tumors. Previously, heat shock or all trans retinoic acid (ATRA) treatment has been shown to be effective in inducing cell apoptosis and cell cycle arrest in several cancer cell lines. In this study, human brain tumor cell line GBM8401 was exposed to 43¢J for 30 min followed by incubation with ATRA. The treatment resulted in up to 50% inhibition of cell growth rate and 50% reduction of cell survival rate . Analysis of cell apoptosis related gene expression and protein expression with RT-PCR and Western blot has showen that p21, p27, pro-caspase 3, phospho-JNK and phospho-p38 were overexpressed after treatment of tumor cells with 43¢J for 30 min followed by addition of ATRA for 15 min to 8 hr. The immunocytochemistry assay revealed that overexpression of phospho-p53 in the nuclei after tumor cells were treated with 43¢J for 30 min followed by addition of ATRA for 8 hr. Results from this study show that treating tumor cells with heat shock before incubation with ATRA will enhance cell apoptosis and inhibit cell growth.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-1101105-172551 |
| Date | 01 November 2005 |
| Creators | WANG, Shin-yuan |
| Contributors | Chung-lung Cho, Jiin-tsuey Cheng, none, none |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-1101105-172551 |
| Rights | campus_withheld, Copyright information available at source archive |
Page generated in 0.0025 seconds