PURPOSE: The role played by the innate immune system in determining survival from non-small-cell lung cancer (NSCLC) is unclear. The aim of this study was to investigate the prognostic significance of macrophage and mast-cell infiltration in NSCLC. METHODS: We used immunohistochemistry to identify tryptase+ mast cells and CD68+ macrophages in the tumor stroma and tumor islets in 175 patients with surgically resected NSCLC. RESULTS: 5-year survival was 52.9% in patients with an islet macrophage density greater than the median versus 7.7% when less than the median (P < .0001). In the same groups, respectively, median survival was 2,244 versus 334 days (P < .0001). Patients with a high islet macrophage density but incomplete resection survived markedly longer than patients with a low islet macrophage density but complete resection. CONCLUSION: The tumor islet CD68+ macrophage density is a powerful independent predictor of survival from surgically resected NSCLC. The biologic explanation for this and its implications for the use of adjunctive treatment requires further study.
PURPOSE: The role played by the innate immune system in determining survival from non-small-cell lung cancer (NSCLC) is unclear. The aim of this study was to investigate the prognostic significance of macrophage and mast-cell infiltration in NSCLC. METHODS: We used immunohistochemistry to identify tryptase+ mast cells and CD68+ macrophages in the tumor stroma and tumor islets in 175 patients with surgically resected NSCLC. RESULTS: 5-year survival was 52.9% in patients with an islet macrophage density greater than the median versus 7.7% when less than the median (P < .0001). In the same groups, respectively, median survival was 2,244 versus 334 days (P < .0001). Patients with a high islet macrophage density but incomplete resection survived markedly longer than patients with a low islet macrophage density but complete resection. CONCLUSION: The tumor islet CD68+ macrophage density is a powerful independent predictor of survival from surgically resected NSCLC. The biologic explanation for this and its implications for the use of adjunctive treatment requires further study.
Authors: Romain Remark; Christian Becker; Jorge E Gomez; Diane Damotte; Marie-Caroline Dieu-Nosjean; Catherine Sautès-Fridman; Wolf-Herman Fridman; Charles A Powell; Nasser K Altorki; Miriam Merad; Sacha Gnjatic Journal: Am J Respir Crit Care Med Date: 2015-02-15 Impact factor: 21.405
Authors: Adam J Bograd; Kei Suzuki; Eva Vertes; Christos Colovos; Eduardo A Morales; Michel Sadelain; Prasad S Adusumilli Journal: Cancer Immunol Immunother Date: 2011-09-13 Impact factor: 6.968
Authors: Mary C M Weiser-Evans; Xue-Qing Wang; Jay Amin; Vicki Van Putten; Rashmi Choudhary; Robert A Winn; Robert Scheinman; Peter Simpson; Mark W Geraci; Raphael A Nemenoff Journal: Cancer Res Date: 2009-02-10 Impact factor: 12.701