[Study of the expression of proliferating cell nuclear antigen and p185 in non-small cell lung carcinoma]

We assessed immunohistochemical expression of p185 and the proliferating cell nuclear antigen (PCNA) in 68 patients undergoing surgery for non-small cell lung cancer. Adenocarcinoma of the lung was the histological type whose expression of p185 at levels exceeding 10% was greater to a statistically significant degree. Epidermoid carcinoma, on the other hand, was associated with the highest PCNA indices. Although these 2 markers had no prognostic value in the survival study, it must be pointed out that the longest survivors were patients with p185 expression less than 10% in neoplastic cells.