Yield of CD34+CD38+ and CD34+CD38− cells by FACS and detection of clonotypic T-cell receptor Vδ2-Dδ3 rearrangements in remission marrow
Patient . | Remission marrow* . | Detection limit of leukemic cell DNA diluted into normal DNA . | Immunophenotype of diagnostic bone marrow . | Presence of clonotypic TCR Vδ2-Dδ3 rearrangement in CD34+CD38− cells . | ||
---|---|---|---|---|---|---|
No. CD34+CD38+ cells . | No. CD34+ CD38−cells . | % CD34+ . | % CD38+ . | |||
1 | 20 160 | 6245 | 1:105 | 87 | 90 | + |
2 | 96 736 | 1970 | 1:104 | 27 | 58 | − |
3 | 271 889 | 1022 | 1:104 | 83 | 90 | − |
4 | 261 749 | 3330 | 1:106 | 80 | 76 | + |
5 | 216 307 | 732 | 1:104 | 81 | 30 | − |
6 | 207 308 | 480 | 1:103 | 48 | 99 | − |
7 | 249 144 | 583 | 1:103 | 80 | 97 | − |
8 | 472 271 | 401 | 1:104 | 35 | 97 | + |
9 | 271 344 | 5070 | 1:104 | 97 | 62 | + |
10 | 20 006 | 485 | 1:103 | 3 | 99 | − |
Patient . | Remission marrow* . | Detection limit of leukemic cell DNA diluted into normal DNA . | Immunophenotype of diagnostic bone marrow . | Presence of clonotypic TCR Vδ2-Dδ3 rearrangement in CD34+CD38− cells . | ||
---|---|---|---|---|---|---|
No. CD34+CD38+ cells . | No. CD34+ CD38−cells . | % CD34+ . | % CD38+ . | |||
1 | 20 160 | 6245 | 1:105 | 87 | 90 | + |
2 | 96 736 | 1970 | 1:104 | 27 | 58 | − |
3 | 271 889 | 1022 | 1:104 | 83 | 90 | − |
4 | 261 749 | 3330 | 1:106 | 80 | 76 | + |
5 | 216 307 | 732 | 1:104 | 81 | 30 | − |
6 | 207 308 | 480 | 1:103 | 48 | 99 | − |
7 | 249 144 | 583 | 1:103 | 80 | 97 | − |
8 | 472 271 | 401 | 1:104 | 35 | 97 | + |
9 | 271 344 | 5070 | 1:104 | 97 | 62 | + |
10 | 20 006 | 485 | 1:103 | 3 | 99 | − |
Shown are numbers of FACS isolated cells from which DNA was extracted. PCR analysis was performed on 100% of cells isolated.