ArticleContemporary oncology (Poznan, Poland)2013
The analysis of ALK gene rearrangement by fluorescence in situ hybridization in non-small cell lung cancer patients.
Article in Contemporary oncology (Poznan, Poland), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 5 citations in OpenAlex.
- Crizotinib efficacy in advanced non-squamous NSCLC patients with ALK or ROS1 rearrangement.Scientific reports · 2021Article
- Prognostic role of ALK-1 and h-TERT expression in glioblastoma multiforme: correlation with ALK gene alterations.Journal of pathology and translational medicine · 2021Article
- Use of Fluorescence In Situ Hybridization (FISH) in Diagnosis and Tailored Therapies in Solid Tumors.Molecules (Basel, Switzerland) · 2020Review
- Increased Copy Number of Anaplastic Lymphoma Kinase Gene Signal in Lung Carcinomas: Is it Significant?Journal of microscopy and ultrastructureArticle
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12 authors at 3 institutions in 1 country.
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Abstract
introductionALK gene rearrangement is observed in a small subset (3-7%) of non-small cell lung cancer (NSCLC) patients. The efficacy of crizotinib was shown in lung cancer patients harbouring ALK rearrangement. Nowadays, the analysis of ALK gene rearrangement is added to molecular examination of predictive factors. AIM OF THE STUDY: The frequency of ALK gene rearrangement as well as the type of its irregularity was analysed by fluorescence in situ hybridisation (FISH) in tissue samples from NSCLC patients. MATERIAL AND
methodsThe ALK gene rearrangement was analysed in 71 samples including 53 histological and 18 cytological samples. The analysis could be performed in 56 cases (78.87%), significantly more frequently in histological than in cytological materials. The encountered problem with ALK rearrangement diagnosis resulted from the scarcity of tumour cells in cytological samples, high background fluorescence noises and fragmentation of cell nuclei.
resultsThe normal ALK copy number without gene rearrangement was observed in 26 (36.62%) patients ALK gene polysomy without gene rearrangement was observed in 25 (35.21%) samples while in 3 (4.23%) samples ALK gene amplification was found. ALK gene rearrangement was observed in 2 (2.82%) samples from males, while in the first case the rearrangement coexisted with ALK amplification. In the second case, signet-ring tumour cells were found during histopathological examination and this patient was successfully treated with crizotinib with partial remission lasting 16 months.
conclusionsFISH is a useful technique for ALK gene rearrangement analysis which allows us to specify the type of gene irregularities. ALK gene examination could be performed in histological as well as cytological (cellblocks) samples, but obtaining a reliable result in cytological samples depends on the cellularity of examined materials.
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