Fig. 5
High expression of Eomes in infant intestinal NK cells. a viSNE plots of combined flow cytometric data visualizing Eomes expression of infant and adult NK cells from epithelium (EP) and lamina propria (LP) intestinal tissues. Cell density of clusters is shown in first row. Expression of Eomes is shown by color coding in relative intensity in second row. viSNE plots have been calculated from concatenated FCS files gated on NK cells (infant samples N = 7, adult samples N = 5, iterations = 7500 perplexity = 100, KL divergence = 2.62). b Frequencies of EP and LP-derived infant (white circles) and adult (dark circles) Eomes+ NK cells. c Representative flow cytometric plots showing co-expression of Eomes and tissue-residency markers (CD103, CD49a, CD69) in NK cells from EP and LP of infant and adult intestines. d Frequencies of Eomes+ NK cells within CD103+, CD49a+, or CD69+ NK cell populations in EP and LP of infants (white circles) and adults (dark circles) (infant samples N = 8 (EP and LP), adult samples N = 8 (EP), and N = 10 (LP)). Median frequencies indicated by red lines. Error bars define interquartile ranges between 75th and 25th percentiles. Statistical comparisons are Mann-Whitney U comparisons (b) and Wilcoxon matched-pairs signed rank tests (d). Asterisks represent the following p-values: *p < 0.05; **p < 0.01; and ***p < 0.001
