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Michael K. Connolly, Andrea S. Bedrosian, Jon Mallen-St. Clair, Aaron P. Mitchell, Junaid Ibrahim, Andrea Stroud, H. Leon Pachter, Dafna Bar-Sagi, Alan B. Frey, George Miller
Published in Volume 119, Issue 11
J Clin Invest. 2009; 119(11):3213–3225 doi:10.1172/JCI37581
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Figure 5
FLDCs have enhanced capacity to induce antigen-specific CTL lysis.

Mice were immunized twice at weekly intervals with Ova257–264 peptide-pulsed (A) liver or (B) spleen DCs from normal or fibrotic mice. At 1 week after the second immunization, splenocytes from immunized mice were harvested and restimulated for 5 days with Ova257-264 peptide before assay of their lytic function using 51Cr-labeled EG7 targets. (A) Immunization with FLDC.Ova257–264, but not NLDC.Ova257–264, produced marked CTL lysis (P < 0.05). (B) Immunization using antigen-loaded splenic DCs from fibrotic mice produced a modest benefit in CTL lysis compared with normal splenic DCs (P < 0.05). (CE) Analysis of day-4 CTL cultures revealed that (C) IFN-γ, (D) IL-10, and (E) IL-5 were markedly elevated in CTL supernatant after immunization with FLDC.Ova257-264 compared with controls (all P < 0.05). CTL experiments were repeated 3 times with similar results.