Table 2

Adoptive transfer of CD4 T cells populations into B16-OVA tumor-bearing mice.

Percent Foxp3EGFP Positive Cells Received From Spleen and Tumor

T Cell Subsets Adoptively

Transferred

Spleen

day 5

Tumor

day 5

Spleen

day 10

Tumor

day 10

Spleen

day 15

Tumor

day 15


Bone marrow control

(0%)

0.0, 0.0

0.0, 0.0

0.0, 0.0

C57BL/6

CD4

(0%)

0.0, 0.0

0.3, 0.5

0.0,0.0

0.0, 0.0

C57BL/6 nTreg

CD4

(100%)

1.4, 1.9

11.7, 15.2

14.8, 20.8

C57BL/6 iTreg

CD4

(26%)

0.4, 0.3

4.5, 3.8

0.4, 2.0

OTII CD4

(0%)

0.0, 0.1

0.0, 0.0

0.0, 0.0

0.0, 0.0

OTII iTreg

CD4

(10.4%)

0.2, 0.0

0.0, 0.0

0.9, 1.4

0.1, 0.1

0.3, 0.4

SPLEEN

day 7

TUMOR

day 7

SPLEEN

day 14

TUMOR

day 14

SPLEEN

day 25

TUMOR

day 25

Pmel CD8

(<1%)

0.0, 0.0

0.1, 0.1

0.0, 0.0

0.1, 0.1

0.0, 0.0

0.0,0.0


C57BL/6 (CD45.2) mice bearing (five-day) B16-OVA tumors were irradiated with 900 cGy. The following day, all mice received bone marrow, from syngenic CD45.1 mice. Several different populations of cells were adoptively transferred into B16-OVA tumor-bearing mice. These cells were activated for 72 hours with αCD3/αCD28/IL-2, and in some cases flow-purified to yield a homogenous population of Foxp3EGFP-positive or negative cells. These cell populations included: (1) 105 C57BL/6 CD4 T cells (0% Foxp3EGFP); (2) 105 C57BL/6 CD4 nTreg (100% Foxp3EGFP); (3) 105 C57BL/6 CD4 TGFβ-induced iTreg (flow purified Foxp3EGFP-negative CD4 T cells, activated in the presence of TGFβ for 72 hours to yield ~26% Foxp3EGFP iTreg); (4) 105 OTII CD4 T cells (0% Foxp3EGFP); (5) 105 OTII CD4 iTreg (10.4% Foxp3EGFP); and 106 Pmel CD8 (<1% Foxp3EGFP). When sufficient numbers of TIL could be isolated for flow (at least 103), these were also surface phenotyped.

Quatromoni et al. Journal of Hematology & Oncology 2011 4:48   doi:10.1186/1756-8722-4-48

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