[Epidemiology and diagnosis of mutations in the ALK gene in patients with non-small cell lung cancer in the Moscow region].

AIM OF STUDY: To determine a diagnostic algorithm for detecting translocation of the ALK gene and its frequency in the Moscow region.

MATERIALS AND

METHODS

During the priod between 2014 and 2018 (inclusive), 488 patients without activating mutations in the EGFR gene in the Moscow region were tested. To detect translocation of the ALK gene, fluorescence in situ hybridization (FISH) methods, an immunohistochemical method, and, in some cases, a polymerase chain reaction were used.

RESULTS

Revealed ALK gene rearrangement in a population of patients with lung adenocarcinoma amounted to an average of 7.6% of cases. With this, the main method that we used was immunohistochemical method, applicable in more than 80% of cases. The use of other methods for verification of abnormalities in the ALK gene was found necessary in rare cases (3.3%).

CONCLUSIONS

Using the algorithm presented in the article, it was possible to detect ALK gene rearrangement in a population of patients with lung adenocarcinoma in the Moscow region in an average of 7.6% of cases.