PMID- 10472338 OWN - NLM STAT- MEDLINE DCOM- 19990916 LR - 20051117 IS - 0250-7005 (Print) IS - 0250-7005 (Linking) VI - 19 IP - 3B DP - 1999 May-Jun TI - Biological characterization of central and peripheral primary non small cell lung cancers (NSCLC). PG - 2249-52 AB - BACKGROUND: Non Small Cell Lung Carcinomas (NSCLC) comprise 90% of all lung carcinomas. Studies have demonstrated a preferential central (bronchus-derived) localization for squamous cells, whereas adenocarcinomas are frequently peripheral (bronchiolo-alveolus derived). It has been suggested that exposure to carcinogenic insults including cigarette smoke, may induce different types of tumors in different locations. MATERIALS AND METHODS: Forty one NSCLC patients staged according to WHO and TNM were considered for localization and biological parameters (p53 expression, cell ploidy and S-phase). RESULTS: p53 overexpression was found more frequently in central than in peripheral tumors (69% vs 39%) (p = 0.074). Central tumors were more aneuploid (69%) than peripheral ones (46%) (p = 0.03) No difference in smoking habit was observed in the two groups. CONCLUSIONS: Our results suggest that there is no apparent biological difference between these two groups of NSCLCs, and that the smoking does not play a role in either histotype determination or biological behavior. FAU - Malara, N M AU - Malara NM AD - Institute of General Pathology and Cancer Research Center Giovanni XXIII, Catholic University-School of Medicine, Rome, Italy. FAU - Sgambato, A AU - Sgambato A FAU - Granone, P AU - Granone P FAU - Flamini, G AU - Flamini G FAU - Margaritora, S AU - Margaritora S FAU - Boninsegna, A AU - Boninsegna A FAU - Cesario, A AU - Cesario A FAU - Galetta, D AU - Galetta D FAU - Yang, Q AU - Yang Q FAU - Cittadini, A AU - Cittadini A LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - 0 (DNA, Neoplasm) RN - 0 (Tumor Suppressor Protein p53) SB - IM MH - Adenocarcinoma/pathology/surgery MH - Aged MH - Carcinoma, Non-Small-Cell Lung/*pathology/surgery MH - Carcinoma, Squamous Cell/genetics/pathology/surgery MH - DNA, Neoplasm/analysis MH - Diploidy MH - Female MH - Flow Cytometry MH - Genes, p53 MH - Humans MH - Immunohistochemistry MH - Lung/anatomy & histology/*pathology MH - Lung Neoplasms/genetics/*pathology/surgery MH - Male MH - Middle Aged MH - Neoplasm Staging MH - Smoking MH - Tumor Suppressor Protein p53/analysis EDAT- 1999/09/03 00:00 MHDA- 1999/09/03 00:01 CRDT- 1999/09/03 00:00 PHST- 1999/09/03 00:00 [pubmed] PHST- 1999/09/03 00:01 [medline] PHST- 1999/09/03 00:00 [entrez] PST - ppublish SO - Anticancer Res. 1999 May-Jun;19(3B):2249-52.