In vivo generation of cytotoxic T cells after
injection of DCs presenting HOX11-, PBX1a-, OVA-, and Meis1-derived
peptides. (a) DCs isolated from C57BL/6,
nontransgenic, and HOX11 transgenic mice were pulsed with IVT HOX11
mRNA and injected into C57BL/6 (●),
nontransgenic (■), and transgenic (▴) mice and
analyzed for the in vivo generation of
anti-HOX11-specific CTLs. Cytolytic activity was assessed with
autologous DC targets pulsed with human HOX11 mRNA. Cytolytic activity
in C57BL/6 mice (○) after the injection of DCs pulsed with
Meis1 IVT mRNA was assessed against autologous DC targets presenting
Meis1-derived peptides. (b) Generation of human
PBX1-specific CTLs in C57BL/6 (●) and HOX11
transgenic (▴) mice injected with syngeneic DCs pulsed with
IVT human PBX1 mRNA. Cytolytic activity was assessed against autologous
DC targets presenting human PBX1a-derived peptides. Nonspecific
C57BL/6 (○) and HOX11 transgenic (▵) CTL
activity was assessed against unpulsed DC targets. (c)
The generation of OVA-specific T cells after the injection of
OVA-pulsed DCs into C57BL/6 (●), nontransgenic
(■), and HOX11 transgenic (●) mice.
Cytolytic activity was assessed against autologous DC targets
presenting OVA-derived peptides. Nonspecific C57BL/6 (○),
nontransgenic (□), and HOX11 transgenic (▵) CTL
activity was assessed against EL4 target cells.