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KMID : 1001920080430040190
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Journal of Korean Neurosurgical Society
2008 Volume.43 No. 4 p.190 ~ p.193
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Expression of Cancer-Testis Genes in Brain Tumors
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Lee Myoung-Hee
Son Eun-Ik
Kim Ealmaan
Kim In-Soo
Yim Man-Bin
Kim Sang-Pyo
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Abstract
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Objectives: Cancer-testis (CT) genes are considered promising candidates for immunotherapeutic approaches. The aim of this study was to investigate which CT genes should be targeted in immunotherapy for brain tumors.
Methods: We investigated the expression of 6 CT genes (MAGE-E1, SOX-6, SCP-1, SSX-2, SSX-4, and HOMTES-85) using reverse-transcription polymerase chain reaction in 26 meningiomas and 32 other various brain tumor specimens, obtained from the patients during tumor surgery from 2000 to 2005.
Results: The most frequently expressed CT genes of meningiomas were MAGE-E1, which were found in 22/26 (85%) meningioma samples, followed by SOX-6 (9/26 or 35%). Glioblastomas were most frequently expressed SOX-6 (6/7 or 86%), MAGE-E1 (5/7 or 71%), followed by SSX-2 (2/7 or 29%) and SCP-1 (1/7 or 14%). However, 4 astrocytomas, 3 anaplastic astrocytomas, and 3 oligodendroglial tumors only expressed MAGE-E1 and SOX-6. Schwannomas also expressed SOX-6 (5/6 or 83%), MAGE-E1 (4/6 or 67%), and SCP-1 (2/6 or 33%).
Conclusion: The data presented here suggest that MAGE-E1 and SOX-6 genes are expressed in a high percentage of human central nervous system tumors, which implies the CT genes could be the potential targets of immunotherapy for human central nervous system tumors.
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KEYWORD
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Cancer-testis gene, Brain tumor, MAGE-E1, SOX-6, SCP-1, SSX-2
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