Rearranged During Transfection Rearrangement Detection by Fluorescence In Situ Hybridization Compared With Other Techniques in NSCLC

Bibliographic Details
Title: Rearranged During Transfection Rearrangement Detection by Fluorescence In Situ Hybridization Compared With Other Techniques in NSCLC
Authors: Anne Mc Leer, PhD, Julie Mondet, PharmD, PhD, Nelly Magnat, MSc, Mailys Mersch, MSc, Diane Giovannini, MD, Camille Emprou, MD, Anne-Claire Toffart, MD, PhD, Nathalie Sturm, MD, PhD, Sylvie Lantuéjoul, MD, PhD, David Benito, PhD
Source: JTO Clinical and Research Reports, Vol 5, Iss 12, Pp 100714- (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Subject Terms: RET, Fusion gene, Lung cancer, FISH, RNA-sequencing, Targeted therapy, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
More Details: Introduction: RET rearrangements occur in 1% to 2% NSCLCs. Since no clinically validated RET antibody is currently available, fluorescence in situ hybridization (FISH) is often used as a screening tool to identify patients likely to benefit from RET-targeted therapy. In this study, we performed a comprehensive review of publications in which RET-rearrangement testing was performed by FISH and compared the methods and results with our data. Methods: The findings of an electronic search for publications using RET-FISH in lung cancer were compared with the results obtained at the Grenoble University Hospital where 784 EGFR-, KRAS-, ALK-, and ROS1-negative NSCLCs were tested by RET break-apart FISH and confirmed by RNA-sequencing (RNA-seq). Results: Out of the 85 publications using RET-FISH analysis, 52 pertained to patients with lung cancer. The most often used positivity threshold was 15%. Six publications compared RET-FISH with at least one other molecular technique on at least eight samples, and the concordance was variable, from 5.9% to 66.7% for FISH-positive cases. Regarding our data, out of the 784 analyzed samples, 32 (4%) were positive by RET-FISH. The concordance between RET-FISH and RNA-seq in RET-FISH positive samples was 69%. Conclusions: Overall, both existing literature and our data suggest that RET-FISH testing can be used for rapid screening of RET rearrangements in NSCLC. Nevertheless, using an orthogonal technique such as RNA-seq to confirm RET-FISH-positive cases is essential for ensuring that only patients likely to benefit from RET-target therapy receive the treatment.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2666-3643
Relation: http://www.sciencedirect.com/science/article/pii/S2666364324000845; https://doaj.org/toc/2666-3643
DOI: 10.1016/j.jtocrr.2024.100714
Access URL: https://doaj.org/article/4980913fe42d45de90e92091df11b88f
Accession Number: edsdoj.4980913fe42d45de90e92091df11b88f
Database: Directory of Open Access Journals
More Details
ISSN:26663643
DOI:10.1016/j.jtocrr.2024.100714
Published in:JTO Clinical and Research Reports
Language:English