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http://purl.uniprot.org/citations/26149475http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/26149475http://www.w3.org/2000/01/rdf-schema#comment"

Objectives

ROS1 rearrangement has been found in a subset of lung cancer and ROS1-rearranged tumors are sensitive to ALK kinase inhibitors. This study sought to evaluate the clinicopathological implications and histomorphological characteristics of ROS1-rearranged tumors, especially micropapillary and aerogenous spread growth and to investigate the usefulness of ROS1 immunohistochemistry as a diagnostic test for ROS1 rearrangement.

Materials and methods

ROS1 rearrangement characterizations by fluorescence in situ hybridization and ROS1 protein and E-cadherin expression by immunohistochemistry were performed using 754 non-small cell lung cancer surgical specimens.

Results

ROS1 rearrangement was identified in 10 samples. Histologically, all 10 ROS1-rearranged tumors harbored an adenocarcinoma component. Significantly, we noted a high association between ROS1 rearrangement with a micropapillary component (p<0.001), aerogenous spread (p=0.002), and E-cadherin loss (p=0.049). Survival analysis showed that ROS1 rearrangement was significantly associated with a higher risk of tumor recurrence (p=0.024). The best criterion to detect ROS1-rearrangement by immunohistochemistry was an H-score of ≥100, with a sensitivity and specificity of 90% and 93.5%, respectively.

Conclusions

ROS1-rearranged adenocarcinoma exhibited distinct morphological and clinicopathological features. Decreased membranous E-cadherin expression and aerogenous spread may be associated with worse disease-free survival. ROS1 immunohistochemistry correlated well with ROS1 gene rearrangement."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.org/dc/terms/identifier"doi:10.1016/j.lungcan.2015.06.012"xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Kim K."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Jin Y."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Kim H."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Park S.Y."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Cho S."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Park E."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Kim G."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Chung J.H."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Lee C.T."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/author"Sun P.L."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/date"2015"xsd:gYear
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/name"Lung Cancer"xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/pages"343-349"xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/title"Frequent aerogenous spread with decreased E-cadherin expression of ROS1-rearranged lung cancer predicts poor disease-free survival."xsd:string
http://purl.uniprot.org/citations/26149475http://purl.uniprot.org/core/volume"89"xsd:string
http://purl.uniprot.org/citations/26149475http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/26149475
http://purl.uniprot.org/citations/26149475http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/26149475
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http://purl.uniprot.org/uniprot/#_A0A140HMB1-mappedCitation-26149475http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/26149475
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http://purl.uniprot.org/uniprot/#_A0A6C0N5X1-mappedCitation-26149475http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/26149475