HIF-1α Activation Reduces Expression of the microRNA hsa-miR-603 Host Gene KIAA1217 and Increases Expression of the Target CCND1 Gene in BeWo b30 Cellsстатья
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Дата последнего поиска статьи во внешних источниках: 12 августа 2020 г.
Аннотация:The model of the placental barrier based on the human choriocarcinoma cell line BeWo b30 allows studying the effect of hypoxia on trophoblast cells. The effect of the oxyquinoline derivative inhibiting HIF-prolyl hydroxylases was studied on this model. Inhibition of these enzymes leads to an increase in the HIF-1α subunit in the cytoplasm, mimicking the cell response to hypoxia. Incubation of the cells with the drug at a concentration of 10 uM for 24 h did not affect the paracellular transport, but reduced the transport of glucose through the cell barrier. The transcriptome analysis after the exposure with oxyquinoline derivative revealed a decreased expression of the KIAA1217 gene and its intronic gene MIR603, which encodes microRNA hsa-miR-603. The expression of the target gene of this miRNA, CCND1 encoding cyclin D1, after oxyquinoline derivative exposition increased significantly, which may indicate a potential microRNA-mRNA regulatory mechanism in the response of trophoblast cells to hypoxia.