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  • Title: Hepatoma-derived growth factor is a novel prognostic factor for patients with pancreatic cancer.
    Author: Uyama H, Tomita Y, Nakamura H, Nakamori S, Zhang B, Hoshida Y, Enomoto H, Okuda Y, Sakon M, Aozasa K, Kawase I, Hayashi N, Monden M.
    Journal: Clin Cancer Res; 2006 Oct 15; 12(20 Pt 1):6043-8. PubMed ID: 17062679.
    Abstract:
    PURPOSE: Hepatoma-derived growth factor (HDGF) is a nucleus-targeted growth factor playing an important role in the development and progression of cancers. This study investigated the correlation of HDGF expression and prognosis in patients with pancreatic ductal carcinoma. PATIENTS AND METHODS: HDGF expression in pancreatic cancer cell lines was analyzed by Western blotting. HDGF expression was analyzed by immunohistochemistry for 50 patients with primary ductal carcinoma of the pancreas (33 male and 17 female) ranging in age from 48 to 80 years (median, 65 years) receiving surgical treatment. Cancer cells showing stronger staining than the noncancerous ducts were regarded as positive. Cases showing positive staining in < 90% and > 90% of tumor cells were regarded as HDGF labeling index (LI) levels 1 and 2, respectively. HDGF LI was determined separately for the nucleus and the cytoplasm. RESULTS: Western blotting showed HDGF expression in pancreatic cancer cells similar to that of hepatic cell lines. Twenty-three (46%) and 27 (54%) cases and 22 (44%) and 28 (56%) cases showed HDGF LI levels 1 and 2 for the nucleus and the cytoplasm, respectively. Patients with nuclear HDGF LI level 1 showed a significantly better 5-year survival rate (37.0%) than those with level 2 (6.8%; P = 0.023). No significant difference was observed in the cytoplasmic HDGF LI classification. Multivariate analysis revealed nuclear HDGF LI to be an independent prognosticator. CONCLUSIONS: These findings suggest that HDGF could be a novel prognostic factor for pancreatic ductal carcinoma.
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