Summary Data-based Mendelian Randomization and Single-cell RNA Sequencing Analyses Identify Immune Associations with Low-level LGALS9 in Sepsis
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Sepsis is one of the major challenges in intensive care units, characterized by the complexity of the host immune status. To gain a deeper understanding of the pathogenesis of sepsis, it is crucial to study the phenotypic changes in immune cells and their underlying molecular mechanisms. We conducted Summary data-based Mendelian randomization analysis by integrating genome-wide association studies data for sepsis with expression quantitative trait locus data, revealing a significant decrease in the expression levels of 17 biomarkers in sepsis patients. Furthermore, based on single-cell RNA sequencing data, we elucidated potential molecular mechanisms at single-cell resolution and identified that LGALS9 inhibition in sepsis patients leads to the activation and differentiation of monocyte and T-cell subtypes. These findings are expected to assist researchers in gaining a more in-depth understanding of the immune dysregulation in sepsis.
Yang Y, Dong L, Li Y, Huang Y, Zeng X J Cell Mol Med. 2024; 28(14):e18559.
PMID: 39044269 PMC: 11265992. DOI: 10.1111/jcmm.18559.