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자료유형
학술저널
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저널정보
대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제39권 제3호
발행연도
2005.1
수록면
151 - 157 (7page)

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Background : Survivin, a novel member of inhibitor-of-apoptosis, is undetectable in most terminally differentiated nonproliferative adult tissue, but is overexpressed in some human malignancies. The survivin gene expression is repressed by binding of wild-type p53 with the survivin promotor. In this study, we investigated the prevalence of survivin expression, its association with p53 overexpression and proliferative index, and clinicopathological significance in non-small cell lung carcinomas (NSCLC). Methods : Immunohistochemical stainings were performed in 59 cases of primary NSCLC for survivin, p53 and Ki-67. Correlations between the survivin expression, p53 overexpression and Ki-67 labeling index were analyzed. Results : Survivin expression was detected in 47 carcinomas (80%) with nuclear immunoreactivity (56%). Survivin nuclear immunoreactivity revealed significantly worse prognosis in NSCLC patients (p=0.003), and correlated with lymph node metastasis (p=0.014), lymphovascular invasion (p=0.032), p53 overexpression, and Ki-67 labeling index (KI 24.2±6.9, p=0.045). Survivin expression was not correlated with histological type and pT status. Conclusions : High incidence of survivin overexpression in NSCLC suggests that survivin is involved in lung carcinogenesis, and nuclear expression of survivin can be used as a poor prognostic predictor in NSCLC patients. Expression of mutant p53 seems to be a possible mechanism of survivin up-regulation in NSCLC.

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