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230619|2022 ii s a eng d |
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|a 10.4103/jcrt.JCRT_1331_20
|2 doi
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|a Stem gene expression in breast tumors during chemotherapy: Connection with the main clinical and morphological factors and the disease outcome
|c M. K. Ibragimova, M. M. Tsyganov, I. V. Deryusheva [et al.]
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|a Текст
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|a электронный
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|a Библиогр.: 27 назв.
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|a Introduction: In this research, we studied how the expression of 14 stem genes (TERT; OCT3; SMO; MYC; SNAI2; MOB3B; KLF4; BMI1; VIM; FLT3; LAT; SMAD2; LMNB2; KLF1), as well as the TGF-beta 1 cytokine gene and its TGFBR1 receptor in breast tumors before and after NAC is associated with clinical and morphological parameters and the disease outcome.& nbsp;Materials and Methods: The study included 82 patients with the morphologically verified diagnosis of T1-4N0-3M0 breast cancer (stages IIA - IIIB). The material was paired biopsy samples of tumor and surgical material for each patient. The stem genes expression was analyzed via qPCR.& nbsp;Results: As a result, we found that increased level of stem genes expression in breast tumors is associated with lymphogenic metastasis, young age, small tumor size, expression of estrogen and progesterone receptors, and the luminal B molecular subtype. NAC stimulates the expression of 7 out of 16 stem genes. Patients who further developed hematogenic metastases have twice as many hyperexpressed stem genes in their tumors before the treatment and after NAC than patients with no hematogenic metastases. The expression level of three genes - OCT3, LAT, and LMNB2 - in a residual tumor allows us to predict metastasis-free survival of patients with breast cancer of various molecular subtypes with a 79% accuracy.& nbsp;Conclusion: Thus, stem genes hyperexpression is associated with tumor progression.
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|a рак молочной железы
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|a экспрессия генов
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|a рибонуклеиновая кислота
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|a статьи в журналах
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|a Ibragimova, Marina K.
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|a Tsyganov, Matvey M.
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|a Deryusheva, Irina V.
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|a Slonimskaya, Elena M.
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|a Litvyakov, Nicolay V.
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|t Journal of cancer research and therapeutics
|d 2022
|g Vol. 18, № 1. P. 89-95
|x 0973-1482
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|u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001003649
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