Table 2

Distribution of 3-week platelet and neutrophil-producing activities between LinALDH+CD38+ and LinALDH+CD38 cells in CB

End pointCB pool no. 1
CB pool no. 2
CD38+
CD38
CD38+
CD38
Total%Total%Total%Total%
Human platelets, (×103)/mL mouse PB* 260 ± 100 41 370 ± 77 59 210 ± 100 37 360 ± 150 63 
Primitive CFU-Mks, > 50 Mks/colony 6300 55 5200 45 550 58 400 42 
Mature CFU-Mks, 3-49 Mks/colony 13 000 53 11 000 47 7300 53 6600 47 
Human neutrophils in mouse BM, %* ND — ND — 12 ± 8 85 2 ± 1 15 
Primitive CFU-GMs, > 1000 cells/colony 26 000 55 21 000 45 9200 38 15 000 62 
Mature CFU-GMs, 20-1000 cells/colony 23 000 56 18 000 44 9100 63 5400 37 
End pointCB pool no. 1
CB pool no. 2
CD38+
CD38
CD38+
CD38
Total%Total%Total%Total%
Human platelets, (×103)/mL mouse PB* 260 ± 100 41 370 ± 77 59 210 ± 100 37 360 ± 150 63 
Primitive CFU-Mks, > 50 Mks/colony 6300 55 5200 45 550 58 400 42 
Mature CFU-Mks, 3-49 Mks/colony 13 000 53 11 000 47 7300 53 6600 47 
Human neutrophils in mouse BM, %* ND — ND — 12 ± 8 85 2 ± 1 15 
Primitive CFU-GMs, > 1000 cells/colony 26 000 55 21 000 45 9200 38 15 000 62 
Mature CFU-GMs, 20-1000 cells/colony 23 000 56 18 000 44 9100 63 5400 37 

In vivo data shown are the means ± SEM of results from 3 mice per group (LinALDH+CD38+ and LinALDH+CD38 cells) in each experiment.

ND indicates not detectable; and —, not applicable. See Table 1 for expansion of other abbreviations.

*

Per 2.5 × 104 Lin human cells.

Per 105 Lin human cells.

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