Stromal fibronectin expression in patients with resected pancreatic ductal adenocarcinoma

World Journal of Surgical Oncology - Tập 17 - Trang 1-8 - 2019
Dingyuan Hu1,2, Daniel Ansari2, Qimin Zhou2, Agata Sasor3, Katarzyna Said Hilmersson2, Roland Andersson2
1Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
2Department of Surgery, Clinical Sciences Lund, Lund University and Skåne University Hospital, Lund, Sweden
3Department of Pathology, Skåne University Hospital, Lund, Sweden

Tóm tắt

Pancreatic ductal adenocarcinoma (PDAC) is characterized by an extremely dense stroma, which has a fundamental role in tumor progression. Fibronectin (FN1) is the main constituent of the tumor stroma in pancreatic cancer. This study aimed to explore the association between FN1 and clinicopathological characteristics and disease survival. Formalin-fixed paraffin-embedded tissue samples from 138 patients with PDAC were constructed into a tissue microarray, followed by immunohistochemical analysis with a recombinant monoclonal FN1 antibody. Chi-square test or Fisher’s exact test were used for comparison of FN1 expression and relevant clinicopathological parameters. Kaplan-Meier survival curves and Cox regression analyses were used to assess the association between FN1 and survival. FN1 was detected in the stromal compartment in most cases (117/138, 84.8%). Compared to the low FN1 expression group, the high FN1 expression group had significantly larger tumor size (P = 0.002), more advanced T stage (P = 0.039) and N stage (P = 0.009), and also worse AJCC stage (P = 0.003). However, stromal FN1 expression was not associated with disease-free survival or overall survival. This study suggests that high stromal FN1 expression is associated with aggressive tumor characteristics in patients with resected PDAC. However, no association between FN1 expression and survival was found.

Tài liệu tham khảo

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