PMID- 21626008 OWN - NLM STAT- MEDLINE DCOM- 20110905 LR - 20211020 IS - 1432-1335 (Electronic) IS - 0171-5216 (Print) IS - 0171-5216 (Linking) VI - 137 IP - 8 DP - 2011 Aug TI - Molecular profiles of EGFR, K-ras, c-met, and FGFR in pulmonary pleomorphic carcinoma, a rare lung malignancy. PG - 1203-11 LID - 10.1007/s00432-011-0986-0 [doi] AB - BACKGROUND: Pulmonary pleomorphic carcinoma (PPC) is a rare type of lung cancer characterized by the poor response to conventional chemotherapy and subsequent disappointing outcomes. Therefore, it is paramount to delineate the molecular characteristics of this disease entity. METHODS: In this study, we retrospectively examined the surgical specimens of 61 patients who underwent lung surgery. Mutational or gene amplification statuses of epidermal growth factor receptor (EGFR), k-ras, c-kit, c-met, and fibroblast growth factor receptor (FGFR) were examined using genomic DNA sequencing, real-time PCR and/or fluorescence in situ hybridization (FISH). RESULTS: The median age was 61 years, and 50 patients were men and 11 were women. In the histologic review of epithelial component, adenocarcinoma were in 44 cases (72%), squamous cell carcinoma in 15 (25%) and large cell carcinoma in 2 patients (3%). Overall, 30 cases (49%) had any molecular alterations. Nine patients (15%) possessed EGFR deletion in exon 19 (n = 8) or L858R mutations in exon 21 (n = 1), while 3 other cases having atypical EGFR mutations. Six patients (9.8%) had k-ras mutations in exon 12, and 3 had c-kit mutations. High gene copy number of c-met was found in 11 patients (18.0%) and that of FGFR was in 6 patients (9.8%). No significant relationships were identified among the occurrence and type of mutations and patient survival or any other clinicopathological variables. CONCLUSIONS: Given the diverse repertoire of mutational profiles observed in PPC samples, clinical trials based on accurate cancer-genotyping should be considered as a legitimate treatment scheme for this rare disease entity in the future. FAU - Lee, Soohyeon AU - Lee S AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-dong Gangnam-gu, Seoul 135-710, Korea. FAU - Kim, Youngwook AU - Kim Y FAU - Sun, Jong-Mu AU - Sun JM FAU - Choi, Yoon La AU - Choi YL FAU - Kim, Jhin Gook AU - Kim JG FAU - Shim, Young-Mog AU - Shim YM FAU - Park, Yeon Hee AU - Park YH FAU - Ahn, Jin Seok AU - Ahn JS FAU - Park, Keunchil AU - Park K FAU - Han, Jung Ho AU - Han JH FAU - Ahn, Myung-Ju AU - Ahn MJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110528 PL - Germany TA - J Cancer Res Clin Oncol JT - Journal of cancer research and clinical oncology JID - 7902060 RN - 0 (Biomarkers, Tumor) RN - 0 (KRAS protein, human) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Receptors, Fibroblast Growth Factor) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) RN - EC 3.6.5.2 (Proto-Oncogene Proteins p21(ras)) RN - EC 3.6.5.2 (ras Proteins) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Analysis of Variance MH - Biomarkers, Tumor/*genetics MH - Carcinoma/*genetics/pathology/surgery MH - Carcinoma, Non-Small-Cell Lung/genetics/pathology MH - ErbB Receptors/*genetics MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Lung Neoplasms/*genetics/pathology/surgery MH - Male MH - Middle Aged MH - *Mutation MH - Polymerase Chain Reaction MH - Proto-Oncogene Proteins/*genetics MH - Proto-Oncogene Proteins c-met/*genetics MH - Proto-Oncogene Proteins p21(ras) MH - Rare Diseases/genetics MH - Receptors, Fibroblast Growth Factor/*genetics MH - Retrospective Studies MH - Sequence Analysis, DNA MH - ras Proteins/*genetics PMC - PMC3133705 EDAT- 2011/06/01 06:00 MHDA- 2011/09/06 06:00 PMCR- 2011/05/28 CRDT- 2011/06/01 06:00 PHST- 2011/03/23 00:00 [received] PHST- 2011/05/12 00:00 [accepted] PHST- 2011/06/01 06:00 [entrez] PHST- 2011/06/01 06:00 [pubmed] PHST- 2011/09/06 06:00 [medline] PHST- 2011/05/28 00:00 [pmc-release] AID - 986 [pii] AID - 10.1007/s00432-011-0986-0 [doi] PST - ppublish SO - J Cancer Res Clin Oncol. 2011 Aug;137(8):1203-11. doi: 10.1007/s00432-011-0986-0. Epub 2011 May 28.