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. 2020 Mar 13;10(3):38. doi: 10.1038/s41408-020-0305-6

Fig. 4. Aged Nfkbie/− mice develop a MBL-like phenotype.

Fig. 4

a Peripheral blood was monitored for the presence of CD19+B220low B cells starting at 4 months. Each symbol represents one mouse (n = 10). b Right panel: percentage of CD5+ cells among CD19+B220low population in the peripheral blood of 16-month-old mice. Each symbol represents one mouse. Left panel: representative plots of FACS analysis of the CD19+B220low B cells and of the expression of CD5 on the CD19+B220low population in the peripheral blood of Nfkbie+/+ (n = 10), Nfkbie−/− without MBL(−/−) (n = 6), and Nfkbie−/− with MBL (−/−MBL) (n = 4). c Analyses of BCR rearrangement clonality in sorted Nfkbie+/+ CD19+B220+ B cells, and Nfkbie−/− CD19+B220+ and CD19+B220low B cells of two different 14-month-old mice (#1 and #2). V–J junctions were PCR amplified from cDNA of sorted B cells using VH family primers (VH1 and multiplexed PCR of VH2, VH3, VH5, VH6, and VH7) and FAM-conjugated consensus JH primer to assess the IgH CDR3 diversity. d Spleen weight of old (>12 months) Nfkbie+/+ (n = 13) and Nfkbie−/− mice (n = 14). Each symbol represents one mouse. e Representative image from littermate Nfkbie+/+ and Nfkbie−/− old mice showing enlarged inguinal lymph nodes of Nfkbie−/− mice. f Representative flow cytometry profiles of CD19+B220low infiltration in bone marrow, spleen, lymph nodes, thymus, and peritoneal cavity of 18-month-old Nfkbie−/− mice with MBL (n = 5) and age-matched Nfkbie+/+ mice. g Absolute cell numbers of CD19+B220low B cells in the spleen and peritoneal cavity of old Nfkbie+/+ and Nfkbie−/− mice (n = 11). Each symbol represents one mouse. Data are mean ± SEM. *p < 0.05, **p < 0.01.