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      The role of microvascularization and growth/adhesion-regulatory lectins in the prognosis of non-small cell lung cancer in stage II.

      European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery

      Carcinoma, Non-Small-Cell Lung, blood supply, chemistry, mortality, Female, Galectin 1, analysis, Galectin 3, Galectins, Humans, Immunohistochemistry, methods, Lung Neoplasms, Male, Microcirculation, Middle Aged, Neoplasm Proteins, Neoplasm Staging, Neovascularization, Pathologic, Prognosis, Treatment Outcome

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          Abstract

          To investigate the role of growth/adhesion-regulatory lectins in the prognosis of the stage II non-small cell lung carcinomas (NSCLCs) via quantitative lectinhistochemical examinations and measurement of microvascularization of the tumour. In 94 radically operated lung cancer patients, stage II NSCLC was confirmed histologically (T1N1: 6, T2N1: 66, T3N0: 22). Immunohistochemical methods were applied to investigate the galectin-1, galectin-3, CL-16 and hyaluronic-acid-binding capacities of the tumours, and also the expression of galectin-1, -3 and heparin binding lectin. Sections were examined with the aid of qualitative (stained/not-stained) and syntactic structure analysis. The microvessels were detected by staining with anti-factor VIII antibodies. The findings were compared with the survival data. In the univariate survival examinations, the prognosis was poorer for the galectin-1 and -3-expressing tumours (p=0.014 and p=0.003) and in multivariate analysis for the galectin-3-expressing tumours (p=0.046, RR: 2.026). Correlations could be demonstrated between the survival and the distance between the tumour cell for the tumours binding galectin-3 (p=0.039, RR: 5.944) and expressing galectin-3 (p=0.041, RR: 3.335). An elevation of the volume fraction of microvessels was a sign of a poor prognosis (p=0.017, RR: 2.334), however the increase of surface fraction improves the survival (p=0.01, RR: 0.956). In stage II NSCLC, galectin-3 expression is indicative of a poor prognosis. In tumour expressing and binding galectin-3, the distance between the tumour cells is of prognostic significance. An increase in the microvessel volume fraction points to a poorer survival rate.

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          Journal
          17369045
          10.1016/j.ejcts.2007.01.072

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