Наукові видання (НН МІ)
Permanent URI for this collectionhttps://devessuir.sumdu.edu.ua/handle/123456789/132
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Item PIK3CA-mutant circulating tumor DNA in patients with breast cancer(MD Publishing House, 2020) Винниченко, Ігор Олександрович; Винниченко, Игорь Александрович; Vynnychenko, Ihor Oleksandrovych; Привалова, Анастасія Олександрівна; Привалова, Анастасия Александровна; Pryvalova, Anastasiia Oleksandrivna; Винниченко, Олександр Ігорович; Винниченко, Александр Игорович; Vynnychenko, Oleksandr Ihorovych; Линдін, Микола Сергійович; Лындин, Николай Сергеевич; Lyndin, Mykola Serhiiovych; Сікора, Владислав Володимирович; Сикора, Владислав Владимирович; Sikora, Vladyslav Volodymyrovych; Романюк, Анатолій Миколайович; Романюк, Анатолий Николаевич; Romaniuk, Anatolii MykolaiovychDuring the research using digital PCR method, tissue and plasma samples from patients with locally advanced breast cancer were examined for the presence of somatic mutation of PIK3CA in biopsy material and circulating tumor DNA. The presence of PIK3CA gene mutation was detected in 17.24% (5/29) of patients in both biopsy material and plasma. A research of serial samples of patients' plasma revealed changes in the amount of circulating tumor DNA throughout all stages of treatment, which reflected the dynamics of the tumor process. For PIK3CA-mutant breast cancer, ER-positive and Her2/neu-negative tumor phenotypes are characteristic.