Katsuki Miyazaki1, Yuji Morine1, Satoru Imura1, Tetsuya Ikemoto1, Yu Saito1, Shinichiro Yamada1, Kazunori Tokuda1, Shohei Okikawa1, Shoko Yamashita1,2, Takeshi Oya3, Koichi Tsuneyama2, Mitsuo Shimada4. 1. Department of Surgery, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan. 2. Department of Pathology and Laboratory Medicine, Tokushima Univercity, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan. 3. Department of Molecular Pathology, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan. 4. Department of Surgery, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan. mitsuo.shimada@tokushima-u.ac.jp.
Abstract
PURPOSE: To clarify whether the preoperative lymphocyte/C-reactive protein (CRP) ratio (LCR) is a prognostic factor for patients with intrahepatic cholangiocarcinoma (IHCC), and investigate its mechanism via tumor-infiltrating lymphocytes. METHODS: The subjects of this retrospective study were 42 patients who had undergone hepatectomy for IHCC. We divided the patients into low LCR and high LCR groups (cutoff value: 8780) and analyzed their overall survival (OS) and disease-free survival (DFS) with respect to LCR and other clinicopathological factors. We also investigated the levels of stromal tumor-infiltrating lymphocytes (TILs) and CD8+ TILs in surgical specimens, and the relationship between LCR and TILs. RESULTS: A low LCR was identified in 21 patients and was significantly correlated with older age, a high CRP-albumin ratio, and advanced disease stage, and was a prognostic factor for OS and DFS. Multivariate analysis revealed that a low LCR was an independent prognostic factor for worse OS (HR 10.40, P = 0.0077). Although the LCR and levels of stromal TILs were not significantly related, LCR and levels of CD8+ TILs were significantly related (P = 0.0297). CONCLUSION: The preoperative LCR may predict the postsurgical prognosis of patients with IHCC and reflect the CD8+ TILs.
PURPOSE: To clarify whether the preoperative lymphocyte/C-reactive protein (CRP) ratio (LCR) is a prognostic factor for patients with intrahepatic cholangiocarcinoma (IHCC), and investigate its mechanism via tumor-infiltrating lymphocytes. METHODS: The subjects of this retrospective study were 42 patients who had undergone hepatectomy for IHCC. We divided the patients into low LCR and high LCR groups (cutoff value: 8780) and analyzed their overall survival (OS) and disease-free survival (DFS) with respect to LCR and other clinicopathological factors. We also investigated the levels of stromal tumor-infiltrating lymphocytes (TILs) and CD8+ TILs in surgical specimens, and the relationship between LCR and TILs. RESULTS: A low LCR was identified in 21 patients and was significantly correlated with older age, a high CRP-albumin ratio, and advanced disease stage, and was a prognostic factor for OS and DFS. Multivariate analysis revealed that a low LCR was an independent prognostic factor for worse OS (HR 10.40, P = 0.0077). Although the LCR and levels of stromal TILs were not significantly related, LCR and levels of CD8+ TILs were significantly related (P = 0.0297). CONCLUSION: The preoperative LCR may predict the postsurgical prognosis of patients with IHCC and reflect the CD8+ TILs.
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