Abstract
Tumor necrosis factor (TNF)-related cytokines regulate cell death and survival and provide strong selective pressures for viruses, such as cytomegalovirus (CMV), to evolve counterstrategies in order to persist in immune-competent hosts. Signaling by the lymphotoxin (LT)-beta receptor or TNF receptor-1, but not Fas or TRAIL receptors, inhibits the cytopathicity and replication of human CMV by a nonapoptotic, reversible process that requires nuclear factor kappa B (NF-kappa B)-dependent induction of interferon-beta (IFN-beta). Efficient induction of IFN-beta requires virus infection and LT signaling, demonstrating the need for both host and viral factors in the curtailment of viral replication without cellular elimination. LT alpha-deficient mice and LT beta R-Fc transgenic mice were profoundly susceptible to murine CMV infection. Together, these results reveal an essential and conserved role for LTs in establishing host defense to CMV.
Original language | English |
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Pages (from-to) | 617-26 |
Number of pages | 10 |
Journal | Infection and Immunity |
Volume | 15 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2001 |
Keywords
- Adaptor Proteins, Signal Transducing
- Animals
- Carrier Proteins
- Cells, Cultured
- Cytomegalovirus
- Fas-Associated Death Domain Protein
- Herpesviridae Infections
- Host-Parasite Interactions
- Humans
- Interferon-beta
- Lymphotoxin beta Receptor
- Lymphotoxin-alpha
- Membrane Proteins
- Mice
- Mice, Transgenic
- Muromegalovirus
- NF-kappa B
- Proteins
- RNA, Messenger
- Receptors, Tumor Necrosis Factor
- Survival Rate
- TNF Receptor-Associated Factor 3
- Transcriptional Activation
- Tumor Necrosis Factor Ligand Superfamily Member 14
- Tumor Necrosis Factor-alpha
- Virus Replication