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Review
. 1985;29(10):939-50.
doi: 10.1111/j.1348-0421.1985.tb02958.x.

The role of NK cell activity in age-dependent resistance of mice to murine cytomegalovirus infection

K Hayashi, Y Eizuru, S Sato, Y Minamishima
Free article
Review

The role of NK cell activity in age-dependent resistance of mice to murine cytomegalovirus infection

K Hayashi et al. Microbiol Immunol. 1985.
Free article

Abstract

The resistance of mice to cell culture passaged murine cytomegalovirus (CC-MCMV) infection developed with age. In parallel with this finding, augmentation of the splenic NK cell activity in older mice was always higher than that of younger mice. The splenic NK cell activity reached the maximum level at 6 day post infection (PI) in 2-4-week-old mice while in 6-8-week-old mice it peaked at 4 days PI. When the dose of CC-MCMV was increased, the NK cell activity was potentiated accordingly. However, it was decreased on the infection with increased doses of the salivary gland passaged MCMV (SG-MCMV). NK cells augmented by MCMV infection actually inhibited in vitro replication of MCMV when they were added to mouse embryonic fibroblast (MEF) monolayers infected with CC-MCMV. Splenic and peritoneal macrophages inhibited in vitro replication of MCMV, but their activities were less potent than those of NK cells.

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