Prognostic value of tumor-infiltrating lymphocytes for patients with completely resected stage IIIA(N2) non-small cell lung cancer

Oncotarget
Wen FengXiao-Long Fu

Abstract

The patient prognosis after complete resection for pathologic stage IIIA(N2) non-small cell lung cancer (NSCLC) remains a significant concern. The clinical relevance of the host immune response to NSCLC has yet to be established. We aimed to investigate the prognostic value of tumor-infiltrating lymphocytes (TILs) in a uniform cohort of patients with completely resected stage IIIA(N2) NSCLC. From 2005 to 2012, consecutive patients with pathologic stage IIIA(N2) NSCLC who underwent complete resection at our institution were reviewed. For each case, full-face hematoxylin and eosin-stained sections from surgical specimens were evaluated for the TIL density. A published, recommended TIL scoring scale was followed. The patients were stratified into the TIL- or TIL+ group based on pathologic evaluation. Data from 320 patients were included in the analysis. Based on a median follow-up duration of 30.8 months, a higher density of TILs was associated with an improved postoperative survival time (P = 0.06). Subgroup analyses indicated that this positive effect was the greatest for patients with squamous cell carcinoma (SCC; P = 0.03). Among those with SCC, the TIL+ patients experienced a significantly increased 3-year distant metastasis-...Continue Reading

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Methods Mentioned

BETA
dissection
surgical resection

Related Concepts

Carcinoma, Cribriform
Non-Small Cell Lung Carcinoma
Squamous Cell Carcinoma
Malignant Neoplasm of Lung
TNM Staging System
Retrospective Studies
Tumor Markers
Survival Rate
Lymphocytes, Tumor-Infiltrating
Carcinoma, Large Cell

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