Table 1.
Cellular Composition of Blood and Spleen of Wild-Type and Homozygous meB2 Littermates Assessed by Flow Cytometry
| Cell type† | Peripheral blood |
Spleen |
||||||
|---|---|---|---|---|---|---|---|---|
| Healthy |
Ptpn6meB2/meB2 |
Healthy |
Ptpn6meB2/meB2 |
|||||
| % total | % sub | % total | % sub | % total | % sub | % total | % sub | |
| T cell (CD3) | 51.2 ± 3.2 | 22.2 ± 1.4⁎ | 47.8 ± 3.6 | 22.1 ± 0.3⁎ | ||||
| CD8+ T cell | 17.2 ± 4.1 | 15.6 ± 3.4 | 6.8 ± 0.5 | 4.4 ± 0.1 | ||||
| CD4+ T cell† | 30.0 ± 0.8 | 11.0 ± 2.5⁎ | 26.7 ± 0.6 | 17.1 ± 0.1⁎ | ||||
| Subpopulation | ||||||||
| CD4+CD69+ | 0.3 ± 0.1 | 1.0 | 1.2 ± 0.1⁎ | 10.9⁎⁎ | 6.2 ± 1.0 | 23.2 | 9.1 ± 2.3⁎ | 53.2⁎⁎ |
| CD4+CD44high | 15.9 ± 1.5 | 53.0 | 9.5 ± 2.2⁎ | 86.4⁎⁎ | 12.4 ± 1.0 | 46.4 | 5.8 ± 0.3⁎⁎ | 33.9 |
| B cell (B220+) | 27.3 ± 0.8 | 16.3 ± 1.0⁎ | 26.3 ± 4.7 | 14.2 ± 0.9⁎⁎ | ||||
| B cell (B220+) | 27.3 ± 0.8 | 16.3 ± 1.0⁎ | 26.3 ± 4.7 | 14.2 ± 0.9⁎⁎ | ||||
| Subpopulation | ||||||||
| B1a/b | 6.9 ± 1.1 | 25.3 | 7.2 ± 3.9 | 44.3⁎⁎ | 6.1 ± 1.6 | 23.2 | 8.5 ± 2.4 | 60.5⁎⁎ |
| B2 (conventional) | 17.3 ± 1.6 | 63.4 | 15.7 ± 5.4 | 52.3⁎ | 16.1 ± 2.5 | 61.3 | 4.1 ± 2.1 | 28.8⁎⁎ |
| CD69+B220+ | 0.3 ± 0.2 | 1.1 | 0.2 ± 0.1 | 1.5 | 0.8 ± 1.2 | 2.2 | 1.1 ± 0.2 | 7.8⁎ |
| Gr-1+ neutrophils | 36.2 ± 2.3 | 78.8 ± 2.3⁎⁎ | 27.0 ± 4.0 | 79.6 ± 2.8⁎⁎ | ||||
| Subpopulation‡ | ||||||||
| Live | 17.7 ± 4.3 | 66.5 | 63.4 ± 4.4 | 80.5⁎ | 8.8 ± 1.3 | 51.8 | 48.2 ± 4.3 | 60.6 |
| Pre-apoptotic | 7.4 ± 0.3 | 27.8 | 12.4 ± 2.4 | 15.7⁎⁎ | 2.9 ± 0.3 | 17.1 | 27.3 ± 5.6 | 34.9⁎⁎ |
| Late apoptotic | 2.5 ± 0.3 | 9.4 | 4.1 ± 0.9 | 5.2⁎⁎ | 5.3 ± 0.4 | 31.2 | 4.6 ± 1.2 | 5.8⁎⁎ |
Cells were analyzed (in all cases, n = 8 sick and n = 7 healthy littermates) at 2 days after disease onset together with their wild-type littermates.
Data are reported as percentage of the mean ± SEM.
AnxV, annexin V; PI, propidium iodide; sub, subpopulation.
P < 0.05;
P < 0.01 compared with healthy mice.
Because of the relative lymphopenia, T-cell and B-cell numbers may be similar in healthy and sick (Ptpn6meB2/meB2) mice, but the ratio (activated cell types, or B1a/b cells) is significantly higher in the sick mice.
Live cells: AnxV−PI−. Pre-apoptotic cells: AnxV+PI−. Late apoptotic: AnxV+PI+.