Effect of Granulocyte Colony-Stimulating Factor Liposomal Form on the Expression of Genes Associated with Chronic Endometritis
摘要
While the classical function of granulocyte colony-stimulatingfactor (G-CSF) is the regulation of neutrophil growth and differentiation,this cytokine also plays an important role in folliculo- and embryogenesis,embryo implantation and trophoblast invasion, thus arousing significantinterest in its application in assisted reproductive technology(ART) programs. It has been established that intrauterine G-CSFadministration in ART protocols for patients with chronic endometritisand recurrent implantation failure increases pregnancy rates; however,the pathogenetic mechanisms of its action require further investigation.We have developed a liposomal form of G-CSF, characterized by ahigher bioavailability upon intrauterine administration comparedto an aqueous G-CSF solution. The study involved 22 infertile patientswith a thin endometrium and repeated ART failures, who receivedtherapy for chronic endometritis via intrauterine administrationof the liposomal G-CSF form twice a week for 6 months. Using real-timePCR, the expression of TVP23A, IL10, and TGF-β1 genesin endometrial biopsies was assessed before and after 6 months oftreatment with the liposomal G-CSF form. This therapy significantlyreduced the expression of the TVP23A gene(p < 0.001) and increasedthe expression of IL10 (p < 0.001) and TGF-β1 (p < 0.001) genes in the endometrium.A significant (p < 0.001)increase in endometrial thickness (M-echo) from 5.6 ± 0.6 to 6.8± 0.8 mm was observed. The obtained data demonstrate that therapyfor chronic endometritis via intrauterine administration of the liposomalG-CSF form for 6 months normalizes the expression of some genesassociated with chronic endometrial inflammation.