For phagocytosis inhibition experiments, cells were pre-incubated with 100 M Dynasore (Sigma) under serum-free conditions for 30 min
For phagocytosis inhibition experiments, cells were pre-incubated with 100 M Dynasore (Sigma) under serum-free conditions for 30 min. TLRs detect microbial products and initiate immune responses to contamination. The different users of the TLR family recognize and transmission to a broad range of microbial ligands, such as bacterial and fungal cell wall components, bacterial lipoproteins and bacterial and viral nucleic acids (1). The nucleic-acid sensing TLRs, TLR3, 7, 8 and 9, are localized to intracellular compartments whereas TLR1, 2, 4, 5 and 6 are expressed at the plasma membrane (2). TLR activation and transmission transduction are regulated by subcellular compartmentalization of receptors and downstream signaling components (3) and the intracellular localization of nucleic acid sensing TLRs appears to facilitate self vs. non-self discrimination (4). The subcellular localization of TLR9, which…