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Integrated proteomics and metabolomics network analysis across different delivery modes in human pregnancy: a pilot study
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Integrated proteomics and metabolomics network analysis across different delivery modes in human pregnancy: a pilot study
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Journal Article
Integrated proteomics and metabolomics network analysis across different delivery modes in human pregnancy: a pilot study
2024
Overview
Background
Delivery mode has been linked to child health, e.g., allergic disease. However, it remains unclear whether protein and metabolite differences across different delivery modes may underlie child development.
Methods
A cohort comprising 16 spontaneous onset vaginal delivery (VD), 16 prelabor cesarean delivery on maternal request (CS), and 8 intrapartum cesarean section (Intra_CS) women were analyzed using label-free proteomic and untargeted metabolomics assays on amniotic fluid and cord blood samples, respectively. We used weighted gene co-expression network analyses (WGCNA) to identify modules of highly correlated proteins or metabolites that associated with delivery modes and related clinical traits. KEGG enrichment analyses were performed to investigate the biological function of the identified modules. Integrative multiomics analysis was employed to examine the biological interplay between proteomic and metabolic interactions.
Results
Compared to the CS group, the proteomic and metabolomic profiles were similar between the Intra_CS and VD groups in our study. We did not identify any enriched protein or metabolite pathways related to immune development that could influence the risk of allergic diseases in offspring across different delivery modes. However, we identified seven protein modules correlated with the duration from the rupture of the membranes to full dilation of the cervix, with the actin cytoskeleton module significantly enriched. A metabolic module in cord blood that correlated with VD was enriched in subclasses including C21 steroids, steroid sulfates, and oxysterols. Integrative analysis of proteomic and metabolomic data suggested pathways related to mode of delivery and duration of labor, encompassing the actin cytoskeleton, NADP metabolic process, nicotinate, and nicotinamide metabolism in amniotic fluid, and the steroid hormone biosynthesis pathway in cord blood.
Conclusions
Differences in steroid hormones and the actin cytoskeleton pathway according to proteomics and metabolomics in amniotic fluid and cord blood were more indicative of the labor process. These findings could guide future studies on delivery-associated biochemical pathways.
