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Table 4 Summary of results from sorting and immunomagnetic cell selection MACS

From: Immunoprofiling of leukemic stem cells CD34+/CD38−/CD123+ delineate FLT3/ITD-positive clones

Sample no.

Age

Total unsorted cells

% CD34 unsorted cells

% CD123 unsorted cells

Total CD34+/CD38−/CD123+ cells from the sorter

Total CD34+/CD38−/CD123− cells from the sorter

WBC count ×109/L

FAB-subtype

Cytogenetics

% blast % diagnosis

Sequencing FLT3/ITD

1

46

10 × 106

96

86

150

1606

5.6

M1

Normal

80

ND

2

60

18 × 106

89

99

76,000

418

4.5

M1

Normal

62

ND

3

69

12 × 106

91

86

12,674

148,396

14.4

M2

Normal

22

78 bp

4

53

27 × 106

73a

93

1839

16

179

M5a

Normal

82

33 bp

5

62

30 × 106

10

64

559

164

145

M4

Normal

40

ND

6

65

17 × 106

15

99

300,000

69

6.11

M2

Normal

73

ND

7

72

40 × 106

79

68

640

3602

0.92

M1

Normal

26

ND

  1. Total unsorted cells represents the starting sample size, whereas total CD34+CD38−CD123+ and CD34+CD38−CD123− cells refers to the total number of CD34+/CD38−/CD123+/− cells obtained from a given sample after sorting. Genomic DNA was sequenced for FLT3/ITD for sample nos. 3 and 4. ND indicates not done
  2. aAfter CD34+ selection by MACS, the total yield of CD34+ = 2.4 × 10−5 cells