BaEV-LVs allow high rate transduction of NSG repopulating cells
Pseudo-type . | BM (%hCD45+) . | BM (%GFP+ cells/total lin+ cells) . | Spleen (% GFP) . | Thymus (% GFP) . | ||||
---|---|---|---|---|---|---|---|---|
hCD45 . | hCD34 . | hCD19 . | hCD13 . | hCD14 . | hCD45 . | hCD45 . | ||
Cytokine-prestimulated hCD34 cells | ||||||||
VSV-G | ||||||||
1 | 22 | 32 | 13 | 34 | 20 | 25 | 24 | 20 |
2 | 57 | 6 | 18 | 13 | 22 | 19 | 7 | 2 |
3 | 33 | 13 | 9 | 7 | 11 | 15 | 13 | 10 |
4 | 43 | 2 | 2 | 0.6 | 0 | 0 | 3 | 0.6 |
5 | 74 | 36 | 43 | 30 | 39 | 48 | 26 | 14 |
RDTR | ||||||||
1 | 13 | 37 | 31 | 36 | 41 | 46 | 38 | 27 |
2 | 16 | 27 | 33 | 26 | 28 | 25 | 40 | 17 |
3 | 26 | 69 | 62 | 78 | 57 | 45 | 38 | 40 |
4 | 25 | 12 | 14 | 10 | 11 | 5 | 20 | 16 |
5 | 82 | 34 | 41 | 31 | 49 | 40 | 23 | 4 |
6 | 25 | 52 | 40 | 56 | 25 | 17 | 52 | 35 |
BaEVTR | ||||||||
1 | 66 | 16 | 19 | 16 | 20 | 16 | 22 | 28 |
2 | 53 | 29 | 35 | 24 | 44 | 41 | 38 | 35 |
3 | 27 | 92 | 90 | 92 | 82 | 73 | 82 | 83 |
4 | 32 | 69 | 57 | 62 | 56 | 71 | 65 | 66 |
5 | 46 | 75 | 81 | 72 | 82 | 69 | 69 | 63 |
6 | 8 | 88 | 82 | 88 | 80 | 67 | 83 | 66 |
7 | 67 | 70 | 73 | 69 | 86 | 80 | 87 | 96 |
BaEVRless | ||||||||
1 | 20 | 40 | 30 | 24 | 44 | 41 | 42 | 42 |
2 | 61 | 52 | 56 | 52 | 61 | 60 | 53 | 50 |
3 | 89 | 87 | 84 | 87 | 83 | 84 | 70 | 77 |
4 | 6 | 95 | 87 | 97 | 75 | 80 | 71 | 84 |
5 | 56 | 46 | 54 | 47 | 57 | 47 | 48 | 73 |
6 | 72 | 58 | 57 | 58 | 57 | 59 | 53 | 78 |
7 | 18 | 72 | 73 | 72 | 69 | 75 | 67 | 70 |
Unstimulated hCD34 cells | ||||||||
BaEVTR | ||||||||
1 | 71 | 8 | 7 | 6 | 18 | 19 | 19 | 15 |
2 | 73 | 8 | 2 | 7 | 6 | 6 | 14 | 1 |
3 | 14 | 6 | 8 | 5 | 6 | 6 | 8 | 2 |
4 | 81 | 16 | 19 | 16 | 27 | 12 | 19 | 12 |
5 | 90 | 14 | 13 | 10 | 15 | 12 | 16 | 8 |
6 | 81 | 35 | 27 | 34 | 40 | 42 | 35 | 62 |
7 | 61 | 26 | 32 | 35 | 27 | 26 | 18 | 18 |
BaEVRless | ||||||||
1 | 70 | 22 | 20 | 23 | 25 | 20 | 16 | 22 |
2 | 75 | 22 | 23 | 27 | 21 | 14 | 26 | 10 |
3 | 29 | 11 | 6 | 13 | 11 | 13 | 13 | 58 |
4 | 72 | 19 | 19 | 18 | 23 | 19 | 20 | 10 |
5 | 64 | 11 | 15 | 12 | 11 | 10 | 23 | 11 |
6 | 77 | 36 | 40 | 35 | 39 | 32 | 30 | 54 |
7 | 85 | 50 | 55 | 49 | 52 | 56 | 52 | 48 |
Pseudo-type . | BM (%hCD45+) . | BM (%GFP+ cells/total lin+ cells) . | Spleen (% GFP) . | Thymus (% GFP) . | ||||
---|---|---|---|---|---|---|---|---|
hCD45 . | hCD34 . | hCD19 . | hCD13 . | hCD14 . | hCD45 . | hCD45 . | ||
Cytokine-prestimulated hCD34 cells | ||||||||
VSV-G | ||||||||
1 | 22 | 32 | 13 | 34 | 20 | 25 | 24 | 20 |
2 | 57 | 6 | 18 | 13 | 22 | 19 | 7 | 2 |
3 | 33 | 13 | 9 | 7 | 11 | 15 | 13 | 10 |
4 | 43 | 2 | 2 | 0.6 | 0 | 0 | 3 | 0.6 |
5 | 74 | 36 | 43 | 30 | 39 | 48 | 26 | 14 |
RDTR | ||||||||
1 | 13 | 37 | 31 | 36 | 41 | 46 | 38 | 27 |
2 | 16 | 27 | 33 | 26 | 28 | 25 | 40 | 17 |
3 | 26 | 69 | 62 | 78 | 57 | 45 | 38 | 40 |
4 | 25 | 12 | 14 | 10 | 11 | 5 | 20 | 16 |
5 | 82 | 34 | 41 | 31 | 49 | 40 | 23 | 4 |
6 | 25 | 52 | 40 | 56 | 25 | 17 | 52 | 35 |
BaEVTR | ||||||||
1 | 66 | 16 | 19 | 16 | 20 | 16 | 22 | 28 |
2 | 53 | 29 | 35 | 24 | 44 | 41 | 38 | 35 |
3 | 27 | 92 | 90 | 92 | 82 | 73 | 82 | 83 |
4 | 32 | 69 | 57 | 62 | 56 | 71 | 65 | 66 |
5 | 46 | 75 | 81 | 72 | 82 | 69 | 69 | 63 |
6 | 8 | 88 | 82 | 88 | 80 | 67 | 83 | 66 |
7 | 67 | 70 | 73 | 69 | 86 | 80 | 87 | 96 |
BaEVRless | ||||||||
1 | 20 | 40 | 30 | 24 | 44 | 41 | 42 | 42 |
2 | 61 | 52 | 56 | 52 | 61 | 60 | 53 | 50 |
3 | 89 | 87 | 84 | 87 | 83 | 84 | 70 | 77 |
4 | 6 | 95 | 87 | 97 | 75 | 80 | 71 | 84 |
5 | 56 | 46 | 54 | 47 | 57 | 47 | 48 | 73 |
6 | 72 | 58 | 57 | 58 | 57 | 59 | 53 | 78 |
7 | 18 | 72 | 73 | 72 | 69 | 75 | 67 | 70 |
Unstimulated hCD34 cells | ||||||||
BaEVTR | ||||||||
1 | 71 | 8 | 7 | 6 | 18 | 19 | 19 | 15 |
2 | 73 | 8 | 2 | 7 | 6 | 6 | 14 | 1 |
3 | 14 | 6 | 8 | 5 | 6 | 6 | 8 | 2 |
4 | 81 | 16 | 19 | 16 | 27 | 12 | 19 | 12 |
5 | 90 | 14 | 13 | 10 | 15 | 12 | 16 | 8 |
6 | 81 | 35 | 27 | 34 | 40 | 42 | 35 | 62 |
7 | 61 | 26 | 32 | 35 | 27 | 26 | 18 | 18 |
BaEVRless | ||||||||
1 | 70 | 22 | 20 | 23 | 25 | 20 | 16 | 22 |
2 | 75 | 22 | 23 | 27 | 21 | 14 | 26 | 10 |
3 | 29 | 11 | 6 | 13 | 11 | 13 | 13 | 58 |
4 | 72 | 19 | 19 | 18 | 23 | 19 | 20 | 10 |
5 | 64 | 11 | 15 | 12 | 11 | 10 | 23 | 11 |
6 | 77 | 36 | 40 | 35 | 39 | 32 | 30 | 54 |
7 | 85 | 50 | 55 | 49 | 52 | 56 | 52 | 48 |
Two- to 3-day-old newborn NOD/SCID γc−/− mice were subjected to a sublethal irradiation of 1 Gy. 2 × 105 hCB-CD34+ cells, transduced at an MOI of 10 with the indicated LV pseudotypes, were injected intrahepatically into the newborns. After 12 weeks of reconstitution, the humanized mice were killed, and the BM, spleen, and thymus were harvested and assessed for levels of GFP+ human cell engraftment (hCD45+GFP+). Multilineage engraftment in the BM was demonstrated by FACS analysis of GFP+ lineage-positive cells. Independent experiments were performed with different hCD34+ cell samples and different batches of each vector.