PMID- 11550279 OWN - NLM STAT- MEDLINE DCOM- 20011204 LR - 20191025 IS - 1045-2257 (Print) IS - 1045-2257 (Linking) VI - 32 IP - 2 DP - 2001 Oct TI - Loss of chromosome arms 3p and 9p and inactivation of P16 (INK4a) in normal epithelium of patients with primary lung cancer. PG - 119-25 AB - The accumulation of genetic alterations in the respiratory epithelium may give rise to cancer and often is accompanied by a series of histologic alterations over a period of several years. Recent studies have identified some molecular alterations in histologically normal-appearing epithelium among patients with lung cancer. To extend these observations, we investigated clonal genetic alterations by using fluorescence in situ hybridization (FISH) analysis and immunohistochemistry in 69 biopsy samples of histologically normal-appearing bronchial epithelium from 22 patients with or without lung cancer. Thirty-seven biopsy specimens from 13 patients were examined for loss of 3p14, and 48 biopsy specimens from 18 patients were examined for loss at 9p21 by FISH. P16(INK4a) expression was analyzed in 54 biopsy samples from 19 patients. In at least one biopsy specimen from five of the 13 patients with primary lung cancer, FISH or immunohistochemistry detected loss of the 3p14 or 9p21 region. In contrast, no alterations were detected for the same regions in the nine patients without primary lung cancer. Our results support the concept that the normal epithelial surface of large bronchi of patients with lung cancer has molecular changes suggestive of the outgrowth of numerous clonal foci. CI - Copyright 2001 Wiley-Liss, Inc. FAU - Caballero, O L AU - Caballero OL AD - Department of Otolaryngology-Head and Neck Surgery, Division of Head and Neck Cancer Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA. FAU - Cohen, D AU - Cohen D FAU - Liu, Q AU - Liu Q FAU - Esteller, M AU - Esteller M FAU - Bonacum, J AU - Bonacum J FAU - White, P AU - White P FAU - Engles, J AU - Engles J FAU - Yochem, R AU - Yochem R FAU - Herman, J G AU - Herman JG FAU - Westra, W H AU - Westra WH FAU - Lengauer, C AU - Lengauer C FAU - Sidransky, D AU - Sidransky D FAU - Jen, J AU - Jen J LA - eng GR - CA 58184/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 RN - 0 (Cyclin-Dependent Kinase Inhibitor p16) SB - IM MH - Bronchi/cytology/metabolism MH - *Chromosome Deletion MH - Chromosomes, Human, Pair 3/*genetics MH - Chromosomes, Human, Pair 9/*genetics MH - Cyclin-Dependent Kinase Inhibitor p16/*genetics/metabolism MH - Female MH - *Gene Silencing MH - *Genes, p16 MH - Humans MH - Lung Neoplasms/*genetics MH - Male MH - Respiratory Mucosa/cytology/*metabolism EDAT- 2001/09/11 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/09/11 10:00 PHST- 2001/09/11 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/09/11 10:00 [entrez] AID - 10.1002/gcc.1173 [pii] AID - 10.1002/gcc.1173 [doi] PST - ppublish SO - Genes Chromosomes Cancer. 2001 Oct;32(2):119-25. doi: 10.1002/gcc.1173.