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자료유형
학술저널
저자정보
저널정보
대한암학회 Cancer Research and Treatment Cancer Research and Treatment 제38권 제3호
발행연도
2006.1
수록면
139 - 143 (5page)

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Purpose: Peritumoral brain edema (PTBE) is a serious causative factor that contributes the morbidity or mortality of brain tumors. The development of PTBE is influenced by many factors, including such tight junction proteins as occludin. We evaluated the PTBE volume and survival time with respect to the occludin expression in various pathological types of brain tumors. Materials and Methods: Fresh-frozen specimens from sixty patients who had brain tumors were obtained during surgery and the tumors were confirmed pathologically. The occludin expression was investigated by Western blot analysis. The PTBE volume was measured by using preoperative magnetic resonance (MR) imaging, and the survival time in each patient was estimated retrospectively. Results: Occludin was detected in 41 (68.3%) of the cases with brain tumors and it was not expressed in the other 19 (31.7%) cases. Although the lowest expression was revealed in high-grade gliomas, its expression was variable according to the pathology of the brain tumors (p>0.05). The difference of PTBE volume between occludin-positive and negative brain tumors was statistically significant (2072.46±328.73 mm3 vs. 7452.42±1504.19 mm3, respectively, p=0.002). The mean survival time was longer in the occludin- positive tumor group than in the occludin-negative group (38.63±1.57 months vs. 26.16±3.83 months, respectively; p=0.016). Conclusions: This study suggests that the occludin expression is highly correlated to the development of PTBE in brain tumors and it might be a prognostic indicator for patient survival. (Cancer Res Treat. 2006; 38:139-143)

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