Figure 10. Prediction of miRNAs that could regulate HIF1A, CDKN1A, MXD1 and SOD2. (A) Venn diagram of miRNAs predicted to target CDKN1A, HIF1A, MXD1 and SOD2. (B) The predicted interactions of hsa-miR-519d-3p with CDKN1A, HIF1A, MXD1 and SOD2. (C) qRT-PCR expression analysis of hsa-miR-519d-3p in PBMCs from COPD and healthy volunteers; data are presented as 2(-ΔCт) relative to U6. (D) Expression analysis of hsa-miR-519d-3p in Beas-2B cell following transfection with hsa-miR-519d-3p mimic. (E) Expression of CDKN1A, HIF1A, MXD1 and SOD2 in Beas-2B cell following transfecting with hsa-miR-519d-3p mimic; data are presented as 2(-ΔΔCт) relative to GAPDH. *P <0.05; **P <0.01.