Review Article

Stem Cell Hierarchy and Clonal Evolution in Acute Lymphoblastic Leukemia

Table 1

LIC activity in prospectively isolated subpopulations in ALL.

LIC markerALL entityTransplanted cells EngraftmentAdministration route
and
mouse strain
Reference

CD34+ CD38−Adult Ph+ ALL2 × 104YesIV 
NOD/SCID
[60]

CD34+ CD10+ 
CD34+ CD10− 
CD34− CD10+ 
CD34− CD10− 
CD34+ CD19+ 
CD34+ CD19− 
CD34− CD19+ 
CD34− CD19−
Adult and infant Ph− Pre-B and cALL1 × 105–1 × 107
7 × 104–3 × 106
1 × 105–1 × 106
1 × 105–1 × 107
1 × 105–1 × 107
5 × 104–2 × 105
1 × 105–1 × 106
1 × 105–1 × 106
No 
Yes 
No 
No 
No 
Yes 
No 
No
IV 
NOD/SCID
[61]

CD34+ CD38− CD19+Infant Ph+ and ETV6/Runx1+ ALL5.5 × 105YesIV 
NOD/SCID/B2m−/−
[59]

CD34+ CD38low CD19+ 
CD34+ CD38+ CD19+
Infant ETV6/Runx1+ ALL5 × 104–3.5 × 105
1 × 106–2.2 × 106
Yes 
No
IV/IF 
NOD/SCID
[63]

CD34+ CD19− 
CD34+ CD19+ 
CD34− CD19+ 
CD19+ CD20−low
CD19+ CD20+high
Infant B-ALL2 × 103
2 × 103
2 × 103
2 × 103
2 × 103
Yes 
Yes 
Yes 
Yes 
Yes
IF 
NOD/SCID and NSG
[65]

CD34+ CD38+ CD19+ 
CD34+ CD38− CD19+ 
CD34+ CD38− CD10− CD19−
Infant B-ALL5 × 103–5 × 105
5 × 105–1 × 105
2 × 103
Yes 
Yes 
Hematopoietic engraftment
IV 
NSG
[64]

CD133+ CD19+ 
CD133+ CD19− 
CD133− CD19+ 
CD133− CD19− 
CD34+ CD19− 
CD133+ CD38+ 
CD133+ CD38−
Infant B-ALL1 × 104–1 × 106
1 × 10³ 
1 × 105–1 × 107
1 × 105–1 × 106
1 × 105
1 × 103–1 × 105
1 × 102
No 
Yes 
No 
No 
Yes 
No 
Yes
IV 
NOD/SCID
[132]

CD9+ 
CD9−
Pre-B-ALL cell lines2 × 104–1 × 106
1 × 106
Yes 
No
IV 
NOG
[133]

CD34+ CD38− CD19+ 
CD34+ CD38+ CD19+ 
CD34− CD38+ CD19+
Adult Ph+ ALL and CML BP5 × 103–1 × 104
5 × 103–1 × 104
5 × 103–1 × 104
Yes 
Yes 
No
IV 
NOD/SCID and NOG
[134]

CD10 low/high 
CD20 low/high 
CD34 low/high
Ph+/− B-ALL1 × 102–1 × 103
1 × 102–1 × 103
1 × 102–1 × 103
Yes 
Yes 
Yes
IF 
NSG
[135]

CD34+ CD38+ CD19+ CD33+ 
CD34− CD38+ CD19+ CD33+ 
CD34− CD38+ CD19+ CD33− 
CD34+ CD38+ CD19+ 
CD34− CD19+ 
CD34+ CD38− CD19− CD33− 
CD34+ CD38− CD19− CD33+
Infant MLL+ ALL1 × 103
1 × 103
1 × 103
1 × 103
1 × 103
1 × 103
1 × 103
Yes 
Yes 
Yes 
Yes 
Yes 
Hematopoietic engraftment 
Yes
IV 
NSG
[67]

CD34+ CD19+ NG2− 
CD34+ CD19+ NG2+ 
CD34− CD19+ NG2− 
CD34− CD19+ NG2+ 
CD34− CD19− 
CD34+ CD19−
Infant MLL+ ALL2 × 103–1 × 106
1 × 104–1 × 106
1 × 103–1 × 105
1 × 104–1.5 × 105
1 × 103–1 × 105
5 × 103–5 × 104
Yes 
Yes 
Yes 
Yes 
No 
Yes
IV 
NOD/SCID and NSG
[105]

CD34+ CD38− CD58− 
CD34+ CD38− CD58+ 
CD34+ CD38+ CD58− 
CD34+ CD38+ CD58+
Ph+ ALL1 × 103–1 × 105
1 × 103–1 × 107
1 × 103–1 × 107
1 × 103–1 × 107
Yes 
No 
No 
No
IF 
NOD/SCID 
(anti CD122 conditioned)
[68]

CD34+ CD38+ CD19+ 
CD34+ CD38−/low CD19+
Pro-B-ALL2 × 103–2 × 106YesIF
NSG
[104]

Ph: Philadelphia chromosome; NG2: neural/glial antigen 2; IV: intravenous; IF: intrafemoral; NSG: NOD/SCID gamma.