Exosomal RNA expression profiles and their prediction performance in gestational diabetes mellitus patients with macrosomia

Exosomal RNAs in cord blood may allow intercellular communication between maternal and fetus. We aimed to establish exosomal RNA expression profiles in cord blood exosomes from gestational diabetes mellitus (GDM) patients with macrosomia.We used microarray technology to establish the differential mRNA, lncRNA and circRNA expression profiles in cord blood exosomes from GDM patients with macrosomia compared with normal controls. A total of 98 mRNAs, 372 lncRNAs and 452 circRNAs were differentially expressed in cord blood exosomes from GDM patients with macrosomia. Pathway analysis showed the differential genes were associated with PI3K-Akt signaling pathway, JAK-STAT signaling pathway, TGF-beta signaling pathway, insulin resistance, glycerolipid metabolism, fatty acid degradation and mTOR signaling pathway. These results showed that exosomal RNAs are aberrantly expressed in the cord blood of GDM patients with macrosomia. 6 human cord blood samples were collected for microarray profiling, including 3 GDM-macrosomia samples and 3 control samples