PMID- 25833149 OWN - NLM STAT- MEDLINE DCOM- 20151106 LR - 20190221 IS - 1423-0232 (Electronic) IS - 0030-2414 (Linking) VI - 89 IP - 3 DP - 2015 TI - Mutational Profile and New IASLC/ATS/ERS Classification Provide Additional Prognostic Information about Lung Adenocarcinoma: A Study of 125 Patients from Brazil. PG - 175-86 LID - 10.1159/000376552 [doi] AB - AIM: To show additional prognostic information about the mutational profile and new International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society (IASLC/ATS/ERS) classification of adenocarcinoma (ADC) in patients without epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor treatments. METHODS: In human lung ADC patients (n = 125), including 24 lepidic, 67 acinar, 23 papillary, and 11 solid predominant subtypes, EGFR and KRAS were sequenced, and anaplastic lymphoma kinase (ALK) rearrangements were screened using fluorescence in situ hybridization (FISH). RESULTS: EGFR was mutated in 21.6% of patients with 19.57% showing a mean expression. The most frequent EGFR mutation was a deletion in exon 19, followed by an L858R amino acid substitution in exon 21. KRAS was mutated in 26.4% of patients with 50% displaying mean expression. ALK rearrangement was detected in 6 patients (4.8%). Predominant acinar ADC was strongly associated with EGFR and KRAS mutation. Clinical stage, lymph node metastases, and EGFR mutation in exon 18 showed a significant difference in disease-free and overall survival, but only a trend significance for EGFR and KRAS mutations. Multivariate analysis revealed that men aged >71 years, with a history of smoking (<72 packs/year), clinical stage I/II, and acinar histologic subtype presented better survival than women aged 72 packs/year), and having a predominant solid ADC and EGFR mutation in exon 18. CONCLUSIONS: These results indicate that the mutational profile and new IASLC/ATS/ERS classification provide additional prognostic information about lung ADC. CI - (c) 2015 S. Karger AG, Basel. FAU - de Melo, Andreia Cristina AU - de Melo AC AD - Department of Pathology, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil. FAU - Karen de Sa, Vanessa AU - Karen de Sa V FAU - Sternberg, Cinthya AU - Sternberg C FAU - Olivieri, Eloisa Ribeiro AU - Olivieri ER FAU - Werneck da Cunha, Isabela AU - Werneck da Cunha I FAU - Fabro, Alexandre Todorovic AU - Fabro AT FAU - Carraro, Dirce Maria AU - Carraro DM FAU - de Barros e Silva, Milton Jose AU - de Barros e Silva MJ FAU - Pimenta Inada, Haynna Kimie AU - Pimenta Inada HK FAU - de Mello, Evandro Sobrosa AU - de Mello ES FAU - Soares, Fernando Augusto AU - Soares FA FAU - Takagaki, Tereza AU - Takagaki T FAU - Ferreira, Carlos Gil AU - Ferreira CG FAU - Capelozzi, Vera Luiza AU - Capelozzi VL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150401 PL - Switzerland TA - Oncology JT - Oncology JID - 0135054 RN - 0 (KRAS protein, human) RN - 0 (Proto-Oncogene Proteins) RN - EC 2.7.10.1 (ALK protein, human) RN - EC 2.7.10.1 (Anaplastic Lymphoma Kinase) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases) RN - EC 3.6.5.2 (Proto-Oncogene Proteins p21(ras)) RN - EC 3.6.5.2 (ras Proteins) SB - IM MH - Adenocarcinoma/*classification/etiology/*genetics/mortality/pathology MH - Adenocarcinoma of Lung MH - Adenocarcinoma, Papillary/genetics MH - Aged MH - Aged, 80 and over MH - Amino Acid Substitution MH - Anaplastic Lymphoma Kinase MH - Brazil MH - Carcinoma, Acinar Cell/genetics MH - Disease-Free Survival MH - ErbB Receptors/*genetics MH - Female MH - Gene Deletion MH - Gene Expression Regulation, Neoplastic MH - *Gene Rearrangement MH - Humans MH - Lung Neoplasms/*classification/etiology/*genetics/mortality/pathology MH - Lymphatic Metastasis MH - Male MH - Middle Aged MH - *Mutation MH - Mutation Rate MH - Neoplasm Staging MH - Predictive Value of Tests MH - Prognosis MH - Proto-Oncogene Proteins/*genetics MH - Proto-Oncogene Proteins p21(ras) MH - Receptor Protein-Tyrosine Kinases/*genetics MH - Risk Factors MH - Smoking/adverse effects MH - Survival Analysis MH - *Transcriptome MH - ras Proteins/*genetics EDAT- 2015/04/03 06:00 MHDA- 2015/11/07 06:00 CRDT- 2015/04/03 06:00 PHST- 2014/12/04 00:00 [received] PHST- 2015/01/27 00:00 [accepted] PHST- 2015/04/03 06:00 [entrez] PHST- 2015/04/03 06:00 [pubmed] PHST- 2015/11/07 06:00 [medline] AID - 000376552 [pii] AID - 10.1159/000376552 [doi] PST - ppublish SO - Oncology. 2015;89(3):175-86. doi: 10.1159/000376552. Epub 2015 Apr 1.