Effect of Different Concentrations of PRP on the Expression of Factors Involved in the Endometrial Receptivity in the Human Endometrial Cells from RIF Patients Compared to the Controls.

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Platelet-rich plasma (PRP) has been suggested for the improvement of endometrial growth and receptivity in the patients with recurrent implantation failure (RIF). The aim of present study was to investigate the impact of different concentration of PRP on the expression of genes involved in the endometrial receptivity in the human endometrial cells from RIF and controls with thin and normal endometrium in vitro. In this cross-sectional study, endometrial biopsies were obtained from 14 healthy fertile women and 14 women with RIF. Endometrial cells from 4 different group (RIF and control with endometrial thickness < 7mm and > 7mm) were cultured with three different concentration of PRP 3%, 5% and 10%. Expression of leukemia inhibitory factor (LIF), COX2 and P53, estrogen receptors (ERs) and progesterone receptors (PRs) genes were measured using quantitative real-time polymerase chain reaction (PCR). Protein expression levels of LIF, COX2 and p53 were evaluated using Western Blot method (WB). There was a significant decrease in the expression of PROA/b, ER2/b, LIF/b, COX2/b and P53/b genes in the RIF groups compared to the controls. Treatment with 5% and 10% PRP caused a significant increase in the gene expression of PRs, ERs, LIF/b, COX2/b and p53 in the RIF groups. Moreover, protein expression of COX2/b, LIF/b and p53/b increased following treatment with PRP in the RIF group with the endometrium thickness < 7mm. PRP enhances expression of LIF, COX2, p53, ERs and PRs in the RIF patients with thin endometrium which may improve endometrium receptivity.