Table 2.
Analysis of thymocytes from TCR transgenic fetal liver chimeras
Donor | Recipient | Cells/thymus, ×10−6 | Clonotype-TCR+CD8+CD4− cells
|
HSA− 2C-TCR+CD8+CD4− cells
|
||
---|---|---|---|---|---|---|
% of thymus | Per thymus × 10−6 | % of 2C-TCR+CD8+ cells | Per thymus × 10−3 | |||
2C, I+ | β2m+ | 14.9 | 18.9 (5.5) | 2.91 (2.3) | 19.7 (6.7) | 337.9 (465.0) |
2C, β2m−/− | β2m−/− | 31.9 | 1.3 (0.3) | 0.36 (0.1) | 0.3 (0.3) | 1.4 (2.1) |
2C, I+ | β2m−/− | 31.0 | 3.6 (1.1)¶ | 1.10 (0.4)§ | 10.8 (4.1)§ | 83.1 (55.5)‡ |
HSA− CD8+CD4− cells* | ||||||
% of CD8+ cells | Per thymus × 10−3 | |||||
2C, I+ | KbDb+ | 19.3 | 19.8 (5.7) | 3.94 (1.8) | 21.1 (7.5) | 881.8 (561) |
2C, β2m−/− | KbDb−/− | 35.9 | 1.2 (0.9) | 0.38 (0.3) | 5.9 (1.3) | 23.4 (18) |
2C, I+ | KbDb−/− | 37.6 | 3.8 (1.6)§ | 1.33 (0.59)§ | 12.9 (6.5)‡ | 118.5 (55)§ |
HY, I+ | β2m+ | 36.5 | 13.8 (4.6) | 5.3 (3.6) | ND | ND |
HY, β2m−/− | β2m−/− | 13.3 | 0.1 (0.1) | 0.015 (0.01) | ND | ND |
HY, I+ | β2m−/− | 10.9 | 0.3 (0.2)† | 0.03 (0.02)† | ND | ND |
Numbers represent the mean values (SD) of four to nine determinations.
Significance vs. corresponding class I− into class I− control group.
P > 0.05 (not significant);
P < 0.05;
P < 0.01;
P < 0.002.
Determined from three-color staining. A few of the 2C, class I+ into KbDb−/− chimeras were analyzed by four-color staining; most of the HSA−CD8+CD4− cells in these animals were 2C-TCR+. ND, not determined.