G C A T T A C G G C A T genes Article BRCA1/2 Mutation Detection in the Tumor Tissue from Selected Polish Patients with Breast Cancer Using Next Generation Sequencing Ewelina Szczerba 1,2, Katarzyna Kami ´nska 1, Tomasz Mierzwa 3, Marcin Misiek 4, Janusz Kowalewski 2 and Marzena Anna Lewandowska 1,2,* 1 The F. Lukaszczyk Oncology Center, Molecular Oncology and Genetics Department, Innovative Medical Forum, 85-796 Bydgoszcz, Poland;
[email protected] (E.S.);
[email protected] (K.K.) 2 Department of Thoracic Surgery and Tumors, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 85-067 Torun, Poland;
[email protected] 3 The F. Lukaszczyk Oncology Center, Department of Prevention and Health Promotion, 85-796 Bydgoszcz, Poland;
[email protected] 4 Swi˛etokrzyskieCancer´ Center, Clinical Department of Gynaecological Oncology, 25-734 Kielce, Poland;
[email protected] * Correspondence:
[email protected] Abstract: (1) Background: Although, in the mutated BRCA detected in the Polish population of patients with breast cancer, there is a large percentage of recurrent pathogenic variants, an increasing need for the assessment of rare BRCA1/2 variants using NGS can be observed. (2) Methods: We studied 75 selected patients with breast cancer (negative for the presence of 5 mutations tested in the Polish population in the prophylactic National Cancer Control Program). DNA extracted from Citation: Szczerba, E.; Kami´nska,K.; the cancer tissue of these patients was used to prepare a library and to sequence all coding regions Mierzwa, T.; Misiek, M.; Kowalewski, of the BRCA1/2 genes.