γδ T Cell Profiling in a Cohort of Preterm Infants Reveals Elevated Frequencies of CD83⁺ γδ T Cells in Sepsis

γδ T cells were investigated in a longitudinal cohort of preterm neonates using next-generation sequencing, flow cytometry, and functional assays. During the first year of life, the Vγ9Vδ2 T cell subset showed dynamic phenotypic changes and elevated levels of fetal-derived Vγ9Vδ2 T cells were evident in infants with sepsis.