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S100A16, a promising candidate as a prognostic marker for platinum-based adjuvant chemotherapy in resected lung adenocarcinoma

Authors Katono K, Sato Y, Kobayashi M, Nagashio R, Ryuge S, Igawa S, Ichinoe M, Murakumo Y, Saegusa M, Masuda N

Received 28 June 2017

Accepted for publication 13 October 2017

Published 2 November 2017 Volume 2017:10 Pages 5273—5279


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Akshita Wason

Peer reviewer comments 3

Editor who approved publication: Dr Carlos E Vigil

Ken Katono,1 Yuichi Sato,2 Makoto Kobayashi,3 Ryo Nagashio,2 Shinichiro Ryuge,1 Satoshi Igawa,1 Masaaki Ichinoe,4 Yoshiki Murakumo,4 Makoto Saegusa,4 Noriyuki Masuda1

1Department of Respiratory Medicine, School of Medicine, 2Department of Molecular Diagnostics, School of Allied Health Sciences, 3Department of Applied Tumor Pathology, Graduate School of Medical Sciences, 4Department of Pathology, School of Medicine, Kitasato University, Minami-ku, Sagamihara, Kanagawa, Japan

Purpose: Although cisplatin-based adjuvant chemotherapy improves the survival of patients with resected non-small-cell lung cancer, not all patients show a survival benefit, and some patients experience severe toxicity. Therefore, identifying biomarkers is important for selecting subgroups of patients who may show improved survival with platinum-based adjuvant chemotherapy. S100A16 is thought to play key roles during different steps of tumor progression. The aim of this study was to evaluate the use of S100A16 expression as a prognostic marker in patients with completely resected lung adenocarcinoma receiving platinum-based adjuvant chemotherapy.
Methods: S100A16 expression was immunohistochemically studied in 65 consecutive lung adenocarcinoma patients who underwent complete resection and received platinum-based adjuvant chemotherapy. Kaplan–Meier survival analysis and Cox proportional hazards models were used to estimate the effect of S100A16 expression on disease-free survival (DFS) and overall survival (OS).
Results: S100A16 expression was detected in 26 of the 65 (40.0%) lung adenocarcinoma patients. Although S100A16 expression was not correlated with DFS (P=0.062), it was significantly correlated with OS (P=0.009). In addition, multivariable analysis revealed that S100A16 expression independently predicted a poorer survival (HR =4.79; 95% CI =1.87–12.23; P=0.001).
Conclusion: The present study revealed that S100A16 is a promising candidate as a prognostic marker for platinum-based adjuvant chemotherapy in resected lung adenocarcinoma. A further large-scale study is needed to confirm the present results.

Keywords: S100A16, lung adenocarcinoma, platinum-based adjuvant chemotherapy, immunohistochemistry, prognostic marker

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