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Diming Wang,1 Wei Ye,2 Qingming Shi1 1Department of Oncology, Anhui Medical University Clinical College of Chest & Anhui Chest Hospital, Hefei, 230022, People’s Republic of China; 2Department of Pathology, Anhui Chest Hospital, Hefei, 230022, People’s Republic of ChinaCorrespondence: Qingming ShiDepartment of Oncology, Anhui Medical University Clinical College of Chest & Anhui Chest Hospital, Hefei, 230022, People’s Republic of ChinaEmail shqm0324@163.comBackground: The relationship between the Ki-67 expression level and chemotherapy response and survival prognosis in advanced lung squamous cell carcinoma (SCC) remains unclear.Methods: A total of 101 patients were included in the study. All patients received systemic first-line platinum-based chemotherapy. The Ki-67 expression level was determined by immunohistochemistry analysis.Results: The Ki-67 expression level was positively correlated with an increase in tumor T stage (P = 0.0140), N stage (P < 0.0001), and M stage (P < 0.0001) in advanced lung SCC. High Ki-67 expression could predict chemotherapy response (area under the curve = 0.7524, P < 0.0001). Patients with tumors that expressed high levels of Ki-67 had shorter overall survival (OS) (18.8 months vs 25.5 months, P = 0.0002) and progression-free survival (PFS) (4.8 months vs 6.7 months, P < 0.0001). Cox analysis found Ki-67 expression to be an independent prognostic biomarker of shortened OS (P = 0.009) and PFS (P = 0.008).Conclusion: Ki-67 expression may affect chemotherapy response and thus has prognostic value. Ki-67 expression may be a promising prognostic biomarker for advanced lung SCC.Keywords: Ki-67 expression, advanced lung squamous cell carcinoma, chemotherapy response, prognostic value |
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