title: Prognostic value of S-100 immunostaining in tumour cells of non-small cell lung cancer.
abstract: S-100 protein expression is present in various malignant tissues, yet its prognostic relevance is debatable. The aim was to assess in non-small cell lung cancer (NSCLC) patients' prognostic value of S-100 protein considered alone or in relation with other variables. Tumour samples taken from 86 NSCLC patients during resection were assayed for S-100 protein expression with the use of polyclonal DAKO ZO311 antibody. S-100 expression was found in 32 cases (37%). Positive staining was not correlated with clinical characteristics including age, sex, pathology type of tumour, stage and cigarette smoking. There was a tendency for simultaneous expression of S-100 and P53 protein (p=0.06). A median survival rate for the entire group was 2.3 years (95% CI, 0.9-3.6 years). The median and 5-year survival of patients with positive staining for S-100 protein was 1.5 years and 25%, respectively, compared with 3.0 years and 35%, respectively, in the S-100 negative group (p=0.17). In the final model of a multivariate analysis, S-100 protein expression in tumour cells was associated with significantly decreased survival (p=0.005). S-100 protein expression in tumour cells seems to be an independent predictor of poor prognosis in NSCLC patients.
authors.affiliation: Department of Allergology, Medical Univerity of Gdańsk, Gdańsk, Poland.
authors.forename: E
authors.initials: E
authors.lastname: Jassem
authors.forename: K
authors.initials: K
authors.lastname: Serkies
authors.forename: R
authors.initials: R
authors.lastname: Dziadziuszko
authors.forename: A
authors.initials: A
authors.lastname: Drozdowska
authors.forename: G
authors.initials: G
authors.lastname: Kobierska-Gulida
authors.forename: J
authors.initials: J
authors.lastname: Skokowski
authors.forename: S
authors.initials: S
authors.lastname: Góźdź
authors.forename: A
authors.initials: A
authors.lastname: Urbaniak
authors.forename: J
authors.initials: J
authors.lastname: Sygut
authors.forename: J
authors.initials: J
authors.lastname: Jassem
mesh_terms: D000328:Adult; D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000401:mortality* / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D009418:S100 Proteins / Q000032:analysis*; D015996:Survival Rate; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D009418:S100 Proteins; D016159:Tumor Suppressor Protein p53