申論題

2. Pattern recognition receptors (PRRs) are the first line of the defense system in innate immune . Please describe two PRRs and the pathogen-associated molecular patterns(P recognize in pathogens and their brief signaling pathways (5 分). After the ligation of PRRs with their PAMPs, the signaling events usually lead to the production of cytokines in innate cells. escribe the functions of two cytokines produced following PRR signal