作者: Agnieszka Kolacinska , Jan Morawiec , Zofia Pawlowska , Janusz Szemraj , Bożena Szymanska
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摘要: Oncologists now favor more personalized treatment strategies in breast cancer patients. Gene expression analysis has been widely used, but less is known about epigenetic factors, for example, microRNAs (miRNAs). The aim of this study was to determine the relationship between selected miRNAs and receptor status core biopsies sampled before preoperative chemotherapy stage III locally advanced (LABC) In 37 LABC biopsies, three per sample were analyzed: hsa-miR-93-5p, hsa-miR-190a, hsa-miR-200b-3p, hsa-miR-103a-3p as an endogenous control (TaqMan® RT-PCR; Applied Biosystems). Receptor determined by a dedicated pathologist. Mann–Whitney U, Shapiro–Wilk, Levene's tests used compare related samples. Levels miRNA-93 differed significantly patients with different expressions ER (estrogen receptor) PR (progesterone receptor). Higher levels found ER-negative (p=0.0027) PR-negative p...