PMID- 27803402 OWN - NLM STAT- MEDLINE DCOM- 20170607 LR - 20181202 IS - 1349-7235 (Electronic) IS - 0918-2918 (Print) IS - 0918-2918 (Linking) VI - 55 IP - 21 DP - 2016 TI - Triple Gene Analysis Using Samples Obtained by Endobronchial Ultrasound-guided Transbronchial Needle Aspiration. PG - 3105-3111 AB - Objective A mutational analysis of tumor tissue samples is an important part of advanced lung cancer treatment strategies. This study evaluated the efficacy of a triple gene analysis using samples obtained via endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA). Methods Either metastatic lymph nodes or primary lung mass samples obtained by EBUS-TBNA were collected between May 2011 and May 2013. We consecutively analyzed epidermal growth factor receptor (EGFR), V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS), and anaplastic lymphoma kinase (ALK) fusion genes using remnant tissue samples. Results A total of 109 patients were diagnosed with non-small cell lung cancer (NSCLC). Of these, 70% were adenocarcinoma, 27% squamous cell carcinoma with NSCLC, and 3% were related to other types of lung cancer. EGFR mutations were detected in 23 cases (21.1%), KRAS mutations in 13 cases (11.9%), and ALK fusion genes in 5 cases (4.9%). The ALK fusion genes could not be analyzed in four cases because of insufficient tissue samples remaining after routine histochemistry and an EGFR/KRAS mutation analysis. We found that small biopsy samples from EBUS-TBNA were adequate for performing a triple gene analysis in 97 patients (96%). ALK fusion protein immunohistochemistry (IHC) was 100% consistent with fluorescence in situ hybridization (FISH). Conclusion Small samples obtained by EBUS-TBNA were found to be sufficient for performing a triple gene analysis following routine histology and IHC. ALK IHC showed a very good concordance with FISH for detecting ALK fusion genes. FAU - Lee, Kyungjong AU - Lee K AD - Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea. FAU - Um, Sang-Won AU - Um SW FAU - Jeong, Byeong-Ho AU - Jeong BH FAU - Yang, Jung Wook AU - Yang JW FAU - Choi, Yoon-La AU - Choi YL FAU - Han, Joungho AU - Han J FAU - Kim, Hojoong AU - Kim H FAU - Kwon, O Jung AU - Kwon OJ LA - eng PT - Journal Article DEP - 20161101 PL - Japan TA - Intern Med JT - Internal medicine (Tokyo, Japan) JID - 9204241 RN - 0 (KRAS protein, human) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 3.6.5.2 (Proto-Oncogene Proteins p21(ras)) SB - IM MH - Adenocarcinoma/genetics/pathology MH - Adult MH - Aged MH - *Biopsy, Fine-Needle MH - Carcinoma, Non-Small-Cell Lung/genetics/pathology MH - Carcinoma, Squamous Cell/genetics/pathology MH - *DNA Mutational Analysis MH - ErbB Receptors/metabolism MH - Female MH - *Genetic Testing MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Lung/*pathology MH - Lung Neoplasms/*genetics/*pathology MH - Lymph Nodes/*pathology MH - Lymphatic Metastasis/genetics/pathology MH - Male MH - Middle Aged MH - Mutation MH - Proto-Oncogene Proteins p21(ras)/metabolism MH - *Ultrasonography, Interventional PMC - PMC5140857 EDAT- 2016/11/03 06:00 MHDA- 2017/06/08 06:00 PMCR- 2016/11/01 CRDT- 2016/11/03 06:00 PHST- 2016/11/03 06:00 [pubmed] PHST- 2017/06/08 06:00 [medline] PHST- 2016/11/03 06:00 [entrez] PHST- 2016/11/01 00:00 [pmc-release] AID - 10.2169/internalmedicine.55.6794 [doi] PST - ppublish SO - Intern Med. 2016;55(21):3105-3111. doi: 10.2169/internalmedicine.55.6794. Epub 2016 Nov 1.