Evaluation of the Impact of Cisplatin on Variances in the Expression Pattern of Leptin-Related Genes in Endometrial Cancer Cells
2020
Dariusz Dąbruś | Robert Kiełbasiński | Beniamin Oskar Grabarek | Dariusz Boroń
This research aimed to assess the impact of cisplatin, depending on the concentration and exposure time, on the expression pattern of leptin in an endometrial cancer cell line. Ishikawa endometrial cancer cell cultures were incubated with cisplatin, at concentrations of 2.5–10 µM, or leptin in the concentration range 10–40 ng/mL, and for durations of 12, 24 and 48 h compared with the control. The microarray techniques: RTqPCR; ELISA; and RNAi assay were used. Statistical analysis was performed at p < 0.05. Already with the lowest concentration and incubation time, statistically substantial silencing of leptin expression on the mRNA level under the influence of cisplatin after its addition to the culture was observed. On the protein level, the expression for cisplatin at a concentration of 2.5 µM was only noticeable after 48 h of exposure and maintained themselves with consecutively larger concentrations. It was observed that cisplatin at a concentration of 5 µM is IC<sub>50</sub> and the drug activated apoptosis via caspases -3 and -9. Cisplatin at a concentration of 5 µM and higher has a significant effect on the concentration of leptin. The effect of cisplatin on the expression profile of genes associated with leptin-dependent signaling pathways and changes in the expression of leptin itself and its receptors was confirmed. It was also confirmed that cisplatin exerted its effect via the leptin pathway.
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