Developing a quality assurance program on the detection of anaplastic lymphoma kinase (ALK) gene rearrangement in non-small cell lung cancer (NSCLC)

Pathology ◽  
2017 ◽  
Vol 49 ◽  
pp. S104
Author(s):  
Kwang Hong Tay ◽  
Nalishia Pillay ◽  
Sze Chai ◽  
Bruce Bennetts ◽  
Martin Horan
Keyword(s):  
Lung Cancer ◽  
Quality Assurance ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Anaplastic Lymphoma Kinase ◽  
Gene Rearrangement ◽  
Small Cell ◽  
Quality Assurance Program ◽  
Small Cell Lung ◽  
Anaplastic Lymphoma

scholarly journals Detection of Anaplastic Lymphoma Kinase (ALK) gene in Non-Small Cell lung Cancer (NSCLC) By CISH Technique

2018 ◽  
Vol 7 (1) ◽  
pp. 22
Author(s):  
Mohanad Ali AlBayyaa ◽  
Ban A. Abdulmajeed
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Anaplastic Lymphoma Kinase ◽  
Gene Rearrangement ◽  
Small Cell ◽  
Small Cell Lung ◽  
Alk Rearrangement ◽  
Anaplastic Lymphoma ◽  
Signal Pattern

Background/Aim: Anaplastic Lymphoma Kinase (ALK) rearrangement has evaluated activity of NSCLC compared with other molecular subtypes (EGFR, KRAS). Many studies demonstrated that patients with ALK rearrangement positive NSCLC have improved with a good response rates and progression (free survival) when treated with either monotherapy or by a combination therapy compared with EGFR-mutated, KRAS/EGFR/ALK wild type or KRAS-mutated. The aim of this study was to detect and study the signal pattern of normal ALK and compare it to that of mutated ALK with gene rearrangement in cases of non-small cell lung cancer and Inflammatory conditions by implementing the CISH technique. In addition to correlate ALK signal pattern with the histopathological type and grade as well as the age and sex of the patients.Materials & Methods: Forty patients with NSCLC and Inflammatory diseases were enrolled in a comparative cross sectional study. The tissue blocks were sectioned on non-charged slides for the preparation of routine H&E staining. Positively charged slides were used for tissue sections prepared for chromogenic in situ hybridization procedure to detect ALK gene.Results: ALK gene signal break apart was detected in (18/20, 90%) of malignant cases; (0/20, 0%) of non-neoplastic lung lesions. There was a significant statistical difference in their distribution, p < 0.05. While There was no significant association between any disease status and sex P value = 1.000NS. The CISH test was 100% sensitive using negative score as a cutoff point and 90.9% specific. The score was divided into three levels that categorized the cases, so there were six cases in score one (1-32%), nine cases in score two (33-67%) and three cases in score three (68-100%).Conclusion: Detection of ALK rearrangement in the early diagnosis of NSCLC is highly sensitive and can save a lot of efforts in planning chemotherapy regimens. Results were very promising in identifying this mutation by a sensitive and highly specific test. The ALK gene rearrangement could be an early mutation and it is needed as an initiating step for the carcinogenesis process. The presence of a double gene mutation, however, could be the cause of a higher-grade cancer.

Anaplastic lymphoma kinase (ALK) gene rearrangement in non-small cell lung cancer (NSCLC): Results of a multi-centre ALK-testing

Lung Cancer ◽  
2013 ◽  
Vol 81 (2) ◽  
pp. 200-206 ◽  
Author(s):  
Maximilian v. Laffert ◽  
Arne Warth ◽  
Roland Penzel ◽  
Peter Schirmacher ◽  
Danny Jonigk ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Anaplastic Lymphoma Kinase ◽  
Gene Rearrangement ◽  
Small Cell ◽  
Small Cell Lung ◽  
Anaplastic Lymphoma
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