期刊
TISSUE & CELL
卷 82, 期 -, 页码 -出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.tice.2023.102041
关键词
Epithelial-Mesenchymal Transition; Beta-catenin; c-myc; Renyi entropy; DAPI; Rt-PCR
This study investigates the induction of EMT by HPV16 in the C33A cell line. Immunofluorescence and RT-PCR were used to examine the expression of 8-catenin, EMT-TFs, and c-myc in HPV16 E6/E7 oncogene transfected and nontransfected C33A cells. ImageJ and Python programming were utilized for image analysis. The results show that HPV16 E6/E7 oncogene can induce EMT based on the increased expression of 8-catenin, c-myc, and EMT-TFs.
This study focuses on the induction of EMT by HPV16 in the C33A cell line. Expression of 8-catenin, EMTtranscription factors (EMT-TFs), and c-myc in the nuclei of HPV16 E6/E7 oncogene transfected and nontransfected C33A cells were investigated through immunofluorescence and RT-PCR. Microphotographs of 8-catenin, c-myc, and DAPI-stained nuclei were processed and analyzed by Python and ImageJ respectively. Microphotographs of immunocytochemically stained transfected and control cells were then processed and analyzed with the help of ImageJ and Python programming. The intensity and the integrated density of 8-catenin were computed at the cell membrane area as well as the cytoplasmic area along with the integrated density of cmyc and Renyi entropy of DAPI-stained nuclei was quantified by ImageJ software. Python programming was implemented to determine the total percentage of white pixels depicting the presence of 8-catenin in the cytoplasmic area of cells. The signal of 8-catenin at the cytoplasmic area was found significantly higher in transfected samples which implies the nuclear accumulation of 8-catenin. The expression of the c-myc protein was found significantly higher in transfected cells along with significantly higher nuclear entropy. RT-PCR result shows two folds of up-regulation of EMT-TFs Snail1, Twist1, and Zeb2 and down-regulation of Snail2 and Twist2. The study concludes that HPV16 E6/E7 oncogene can induce EMT.
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