PMID- 15642199 OWN - NLM STAT- MEDLINE DCOM- 20060331 LR - 20150313 VI - 24 IP - 1 DP - 2005 Jan TI - [Chromosomal imbalance in primary lung squamous cell carcinoma and their relationship with smoking]. PG - 47-52 AB - BACKGROUND & OBJECTIVE: Chromosomal imbalance plays an important role in tumorigenesis of lung cancer, and may be influenced by different carcinogens. This study was to examine chromosomal imbalance in primary lung squamous cell carcinoma (LSCC), and their association with smoking. METHODS: Chromosomal gains and losses in 39 specimens of LSCC were identified by comparative genomic hybridization (CGH), the association between chromosomal imbalances in LSCC and smoking was analyzed. RESULTS: The most frequent chromosomal gains of LSCC were detected on chromosomal arms 3q (74.4%, 29/39), 5p (66.7%, 26/39), 1q (43.6%, 17/39), 8q (41.0%, 16/39), 12p (42.6%, 18/39), 2p (38.5%, 15/39), and 18p (33.3%, 13/39), with minimal amplified regions (MAR) at 3q26.2-29 (74.4%, 29/39), 5p14.3-15.3 (66.7%, 26/39), 1q41-44(41.0%, 16/39), 8q23 (41.0%, 16/39), 12p13 (41.0%, 16/39), and 18p11.2 (33.3%, 13/39)u high-copy-number amplification at chromosomal arms 3q, and 5p were found in 15 (38.5%), and 6 (15.4%) patients. Chromosomal losses mainly involved chromosomal arms 3p (56.4%, 22/39), 5q (53.8%, 21/39), 13q (51.3%, 20/39), 8p (46.1%, 18/39), 4p (43.6%, 17/39), 4q (43.6%, 17/39), 1p (41.0%, 16/39), 2q (38.5%, 15/39), 9q (35.9%, 14/39), 13p (35.9%, 14/39), 16p (35.9%, 14/39) ,6p (33.3%, 13/39), and 6q (30.7%, 12/39), with minimal deleted regions (MDR) at 3p14.2-21.2 (51.3%, 20/39), 5q15-22 (51.3%, 20/39), 13q14.2-21.2 (48.7%, 19/39), 8p21.1-22 (43.6%, 17/39), 2q32 (35.9%, 14/39), and 16p12-13.1 (33.3%, 13/39). Amplification rates of chromosomal arms 3q, and 8q in smoking LSCC patients were significantly higher than those in non-smoking LSCC patients (P=0.002,P=0.031). While high incidences of gains at chromosomal arms 5p and 12p, and of losses at chromosomal arms 3p, 4q, and 5q were the common feature of chromosomal changes of smoking and non-smoking LSCC patients. CONCLUSION: 3q, 5p, 1q, 8q, 12p, 2p, 18p gains and 3p, 5q, 13q, 8p, 4p, 4q, 1p, 2q, 9q, 13p,16p, 6p, 6q loses might be involved in tumorigenesis and/or progression of LSCC, smoking-induced lung cancer may be associated with 3q, 8q gains. FAU - Yan, Wen-Sheng AU - Yan WS AD - Research Department, Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong 510-060, P.R. China. FAU - Song, Lan-Ying AU - Song LY FAU - Wei, Wei-Dong AU - Wei WD FAU - Li, Ang AU - Li A FAU - Liang, Qi-Wan AU - Liang QW FAU - Liu, Ji-Hong AU - Liu JH FAU - Fang, Yan AU - Fang Y LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Ai Zheng JT - Ai zheng = Aizheng = Chinese journal of cancer JID - 9424852 SB - IM MH - Adult MH - Aged MH - Carcinoma, Squamous Cell/etiology/*genetics MH - *Chromosome Aberrations MH - Chromosome Deletion MH - *Chromosomes, Human, Pair 3 MH - Chromosomes, Human, Pair 8 MH - Female MH - Humans MH - Lung Neoplasms/etiology/*genetics MH - Male MH - Middle Aged MH - Nucleic Acid Hybridization MH - Smoking/*adverse effects EDAT- 2005/01/12 09:00 MHDA- 2006/04/01 09:00 CRDT- 2005/01/12 09:00 PHST- 2005/01/12 09:00 [pubmed] PHST- 2006/04/01 09:00 [medline] PHST- 2005/01/12 09:00 [entrez] AID - 1000467X20050047 [pii] PST - ppublish SO - Ai Zheng. 2005 Jan;24(1):47-52.