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Cytokines such as gamma interferon and tumor necrosis factor alpha (TNF-alpha) inhibit the intracellular replication of Chlamydia pneumoniae or Chlamydia trachomatis. In this study, we found that another cytokine, lymphotoxin (TNF-beta), restricts the growth of C. pneumoniae in HEp-2 cells. When lymphotoxin (10 U/ml) was added during incubation from 8 to 16(More)
Osteoclasts (OCLs) are multinucleated giant cells and are formed by the fusion of mononuclear progenitors of monocyte/macrophage lineage. It is known that macrophages derived from different genetic backgrounds exhibit quite distinct characteristics of immune responses. However, it is unknown whether OCLs from different genetic backgrounds show distinct(More)
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