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Journal of Korean Neurosurgical Society 2008;43(4): 190-193.
doi: https://doi.org/10.3340/jkns.2008.43.4.190
Expression of Cancer-Testis Genes in Brain Tumors.
Myoung Hee Lee, Eun Ik Son, Ealmaan Kim, In Soo Kim, Man Bin Yim, Sang Pyo Kim
1Department of Neurosurgery, Keimyung University School of Medicine, Daegu, Korea. drson@dsmc.or.kr
2Department of Pathology, Keimyung University School of Medicine, Daegu, Korea.
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.
Key Words: Cancer-testis gene; Brain tumor; MAGE-E1; SOX-6; SCP-1; SSX-2
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