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  • Title: Expression of survivin mRNA associates with apoptosis, proliferation and histologically aggressive features in hepatocellular carcinoma.
    Author: Morinaga S, Nakamura Y, Ishiwa N, Yoshikawa T, Noguchi Y, Yamamoto Y, Rino Y, Imada T, Takanashi Y, Akaike M, Sugimasa Y, Takemiya S.
    Journal: Oncol Rep; 2004 Dec; 12(6):1189-94. PubMed ID: 15547736.
    Abstract:
    The clinical impact of survivin on human cancer pathogenesis and prognosis has been investigated. To clarify the clinical effect of survivin on tumor behavior and prognosis of patients with hepatocellular carcinoma (HCC), the expression of survivin mRNA in 40 samples of HCC tissue and matched-adjacent liver tissue, as well as 7 healthy hepatic tissue samples were measured by a real-time reverse transcription polymerase chain reaction. The expressed level of survivin mRNA (log copies/microg total RNA) in healthy liver tissue was 1.95+/-0.44, in morbid liver tissue adjacent to the tumors was 4.79+/-0.96, and in HCC tissue was 5.87+/-0.73 (values are mean +/- SD and P<0.001). The amount of survivin mRNA in HCC tissues correlated negatively with the apoptotic indices (r=-0.573 and P<0.001) and correlated positively with the proliferation indices (r=0.433 and P=0.005). Expression of survivin was significantly related with histologic grade (P=0.011) and pathological tumor stage (P=0.017). Patients with HCC tumors that had a large amount of survivin mRNA (> or = mean) had lower survival rate (P=0.030), but multivariate analysis showed only Ki-67 labeling index, histologic grade, and pathologic T stage to be the independent prognosticators. These findings indicate that survivin is associated with reduced tumor cell apoptosis, increased tumor cell proliferation, and histologically aggressive tumor features, and may play an important role in tumor progression of HCC. However, further examination is needed to clarify its predictive significance for HCC patients.
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