A novel role of CD30/CD30 ligand signaling in the generation of long-lived memory CD8+ T cells |
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Authors: | Nishimura Hitoshi Yajima Toshiki Muta Hiromi Podack Eckhard R Tani Kenzaburo Yoshikai Yasunobu |
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Institution: | Division of Host Defense, Center for Prevention of Infectious Disease, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan. |
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Abstract: | Memory CD8+ T cells can be divided into two subsets, central memory (T(CM)) and effector memory (T(EM)) CD8+ T cells. We found that CD30, a member of the TNFR-associated factor (TRAF)-linked TNFR superfamily, signaling is involved in differentiation of long-lived CD8+ T(CM) cells following Listeria monocytogenes infection. Although CD8+ T(EM) cells transiently accumulated in the nonlymphoid tissues of CD30 ligand (CD153-/-) mice after infection, long-lived memory CD8+ T(CM) cells were poorly generated in these mice. CCR7 mRNA expression was down-regulated in CD8+ T cells of the spleen of CD153-/- mice in vivo and the expression was up-regulated in CD8+ T(EM) cells by anti-CD30 mAb cross-linking in vitro. These results suggest that CD30/CD30 ligand signaling plays an important role in the generation of long-lived memory CD8+ T cells at least partly by triggering homing receptors for T(CM) cells. |
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