Authors: Masami Kaji Junji Tanaka Junichi Sugita Naoko Kato Makoto Ibata Yusuke Shono Shuichi Ohta Takeshi Kondo Masahiro Asaka Masahiro Imamura
Publish Date: 2007/08/28
Volume: 87, Issue: 3, Pages: 229-231
Abstract
Lipopolysaccharide LPS interacts with immune cells by binding to CD14 molecules and then interacts with tolllike receptor TLR4 on monocytes and dendritic cells 1 2 3 On the other hand TLR8 recognizes viral singlestranded RNA ssRNA 4 Therefore TLR4 is involved in immunological events during bacterial infection and TLR8 is involved in immunological events during viral infection Ciprofloxacin CIP a fluorinated 4quinolone is one of the quinolone antibiotics CIP reduces the population of intestinal bacteria and influences the development of acute graftvshost disease GVHD after allogeneic bone marrow transplantation for hematological malignancies 5 In addition CIP has modulatory actions on immune and inflammatory responses such as inhibition of the production of tumor necrosis factor TNFα in LPSstimulated peripheral blood mononuclear cells PBMC 6 The mechanisms underlying the effects of quinolones on immune modulation might depend on
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