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. 2024 Dec 4;15:10566. doi: 10.1038/s41467-024-54780-3

Fig. 6. IL-33 triggers IL-5 production in ILC2 to stimulate B1 cells.

Fig. 6

ad Flow cytometric plots and quantification of B1 cells in (a), the peritoneal lavage (Il33+/+ n = 7, Il33−/− n = 7), b the thoracal lavage (Il33+/+ n = 6, Il33-/- n = 4), c omentum (Il33+/+ n = 6, Il33−/− n = 3) and (d) lung (Il33+/+ n = 5, Il33-/- n = 3) of Il33-/- and control mice. e, f Flow-cytometric analysis of Ki-67 of B1 cells (Pre-gated on Live CD45+ CD19+ CD23) in Il33−/− versus control mice in the (e), peritoneal lavage (Il33+/+ n = 5, Il33-/- n = 4) and the (f) thoracal lavage (Il33+/+ n = 4, Il33−/− n = 3). gj Flow-cytometric plots and quantification of B1 cells of Nmur1iCre-eGFP Il1r1fl/fl (ST2) mice and littermate controls in (g), the peritoneal lavage (Il1rl1fl/fl n = 4, Nmur1iCre-eGFP Il1rl1fl/fl n = 5) h the thoracal lavage (Il1rl1fl/fl n = 4, Nmur1iCre-eGFP Il1rl1fl/fl n = 4), i omentum (Il1rl1fl/fl n = 4, Nmur1iCre-eGFP Il1rl1fl/fl n = 4), and (j) lung (Il1rl1fl/fl n = 4, Nmur1iCre-eGFP Il1rl1fl/fl n = 4). k Sort-purified small intestinal ILC2s gated as Live CD45+ Lin (CD3, CD5, CD19, Fcεrl, Ly6G) CD127+ KLRG1+ of Tslpr−/− (Tslpr+/+ n = 5, Tslpr−/− n = 5), Il17rb−/− (Il17rb+/+ n = 5, Il17rb−/− n = 4), Il33−/− (Il33+/+ n = 5, Il33−/− n = 5) and Nmur1iCre-eGFP Il1rl1fl/fl (Il1rl1fl/fl n = 6, Nmur1iCre-eGFP Il1rl1fl/fl n = 7) and qPCR for Il5. Each symbol represents data from one mouse, mean +/− SD, data are representative of at least two independent experiments. Statistical significance was determined by two-tailed unpaired Student’s t-test (aj) or Mann Whitney test (k), n.s. non-significant, *p < 0.05, **p < 0.01, ***p < 0.001. Source data, including exact p-values, are provided as a Source data file Fig. 6.