Abstract | BACKGROUND & OBJECTIVE: METHODS: MGMT expression in 311 glioma specimens was examined by tissue array technology and immunohistochemistry method, all patients had been followed up for 5 years, and the materials were analyzed statistically. RESULTS: The positive expression of MGMT was 126 in 311 gliomas (40.51%), among them, 61 in 121 astrocytomas (50.41%), 18 in 70 oligodendrogliomas (25.71%), 18 in 64 oligoastrocytomas (28.13%), 29 in 56 glioblastomas (51.79%); 68 in 186 grade I-II gliomas (36.56%), and 58 in 125 grade III-IV gliomas (46.40%). The difference of MGMT expression between grade I-II and grade III-IV gliomas was significant (P< 0.001). According to Kaplan-Meier's survival curves and log-rank test, patients with MGMT expression showed a shorter survival time than those with no MGMT expression (P< 0.05). CONCLUSION: MGMT expression in glioma correlates with histopathological type and tumor grade. Patients with MGMT expression show a shorter survival time than those with no MGMT expression.
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Authors | Yan-Hui Sun, Ya-Zhuo Zhang, Zhong-Cheng Wang, Mei-Zhen Sun, Dong-Hai Zhao |
Journal | Ai zheng = Aizheng = Chinese journal of cancer
(Ai Zheng)
Vol. 23
Issue 9
Pg. 1052-5
(Sep 2004)
China |
PMID | 15363200
(Publication Type: English Abstract, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- O(6)-Methylguanine-DNA Methyltransferase
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Topics |
- Adolescent
- Adult
- Aged
- Astrocytoma
(metabolism, mortality)
- Brain Neoplasms
(metabolism, mortality)
- Child
- Child, Preschool
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Glioblastoma
(metabolism, mortality)
- Glioma
(metabolism, mortality)
- Humans
- Male
- Middle Aged
- O(6)-Methylguanine-DNA Methyltransferase
(metabolism)
- Oligodendroglioma
(metabolism, mortality)
- Survival Rate
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