immune system
• bone marrow-derived dentritic cells exhibit impaired translocation of internalized antigens into the cytosol compared with wild-type cells
• however, phagocytosis is normal
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• cross-presentation and, to a less extent, direct presentation are down-regulated when bone marrow-derived dendritic cells after a pulse with ovalbumin or transfection with an ovalbumin expressing plasmid compared with similarly treated wild-type cells
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• from bone marrow-derived dendritic cells pulsed with cell-associated ovalbumin (UV irradiated Tap1tm1Arp cells osmotically loaded with ovalbumin) subsequently incubated with Tg(TcraTcrb)1100Mjb CD8+ T cells
• from splenic CD8+ T cells of mice immunized with Tap1tm1Arp splenic cells osmotically loaded with ovalbumin after stimulation with ovalbumin 257-264 epitope pulsed DC2.4 cells
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