PMID- 35624360 OWN - NLM STAT- MEDLINE DCOM- 20220922 LR - 20221013 IS - 1432-2307 (Electronic) IS - 0945-6317 (Linking) VI - 481 IP - 3 DP - 2022 Sep TI - Detecting anaplastic lymphoma kinase (ALK) gene rearrangements with next-generation sequencing remains a reliable approach in patients with non-small-cell lung cancer. PG - 405-419 LID - 10.1007/s00428-022-03339-y [doi] AB - Next-generation sequencing (NGS) is rapidly becoming routine in clinical oncology practice to identify therapeutic biomarkers, including gene rearrangements in anaplastic lymphoma kinase (ALK). Our study investigated the concordance of ALK positivity evaluated by DNA-based NGS with orthogonal ALK testing methods such as fluorescence in situ hybridization (FISH), immunohistochemistry (IHC), and RNA-based NGS (RNA-NGS). Thirty-eight patients with lung adenocarcinoma who were detected with ALK rearrangements using DNA-NGS and also had adequate tissue samples submitted for FISH, IHC, and RNA-NGS, were included in this study. Of the 38 patients, RNA samples from 3 patients failed quality control for RNA-NGS. The concordance of ALK positivity was calculated relative to DNA-NGS results. The concordance rates were 97.1% (34/35) for RNA-NGS, 94.7% (36/38) for IHC, and 97.4% (37/38) for FISH. DNA-NGS detected single ALK rearrangements in 14 (35.0%) patients and complex ALK rearrangements in 26 (65.0%). RNA-NGS detected only single transcripts of the primary ALK fusions. A novel LANCL1-ALK (L7:A20) detected using DNA-NGS was detected as EML4-ALK (E13:A20) transcripts using RNA-NGS. Interestingly, patients with single ALK rearrangements were more likely to be detected with atypical isolated red signals (p < 0.001), while patients with complex ALK rearrangements were more likely to be detected with atypical split red and green signals less than 2 signal diameters apart (p < 0.001). Our study highlights the reliability of NGS in the accurate detection of specific ALK fusion variants and concomitant mutations that are crucial for individualized treatment decisions in patients with lung cancer. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Ding, Ying AU - Ding Y AD - Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. FAU - Sun, Chang AU - Sun C AD - The First School of Clinical Medicine, Nanjing Medical University, Nanjing, 210029, China. FAU - Su, Wei AU - Su W AD - The First School of Clinical Medicine, Nanjing Medical University, Nanjing, 210029, China. FAU - Miao, Chen AU - Miao C AD - Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. FAU - He, Xiao AU - He X AD - Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. FAU - Wang, Jin-Song AU - Wang JS AD - Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210000, China. FAU - Zhang, Zhi-Hong AU - Zhang ZH AUID- ORCID: 0000-0002-5779-9365 AD - Department of Pathology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. zhangzh@njmu.edu.cn. LA - eng GR - 82172991/National Natural Science Foundation of China/ GR - 81502089/National Natural Science Foundation of China/ GR - 81773109/National Natural Science Foundation of China/ GR - BK20151024/Natural Science Foundation of Jiangsu Province/ GR - BK20151582/Natural Science Foundation of Jiangsu Province/ GR - 21KJB320015/Natural Science Research Program for Higher Education in Jiangsu Province/ PT - Journal Article DEP - 20220528 PL - Germany TA - Virchows Arch JT - Virchows Archiv : an international journal of pathology JID - 9423843 RN - 0 (Oncogene Proteins, Fusion) RN - 63231-63-0 (RNA) RN - EC 2.7.10.1 (Anaplastic Lymphoma Kinase) SB - IM MH - *Anaplastic Lymphoma Kinase/genetics MH - *Carcinoma, Non-Small-Cell Lung/pathology MH - Gene Rearrangement MH - High-Throughput Nucleotide Sequencing/methods MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - *Lung Neoplasms/pathology MH - Oncogene Proteins, Fusion/genetics MH - RNA/therapeutic use MH - Reproducibility of Results OTO - NOTNLM OT - ALK rearrangement OT - FISH OT - NGS OT - NSCLC EDAT- 2022/05/28 06:00 MHDA- 2022/09/23 06:00 CRDT- 2022/05/27 23:27 PHST- 2022/01/05 00:00 [received] PHST- 2022/05/12 00:00 [accepted] PHST- 2022/04/12 00:00 [revised] PHST- 2022/05/28 06:00 [pubmed] PHST- 2022/09/23 06:00 [medline] PHST- 2022/05/27 23:27 [entrez] AID - 10.1007/s00428-022-03339-y [pii] AID - 10.1007/s00428-022-03339-y [doi] PST - ppublish SO - Virchows Arch. 2022 Sep;481(3):405-419. doi: 10.1007/s00428-022-03339-y. Epub 2022 May 28.