Immune-Mediated Hypersensitivities TypeI TypeI Type Type I immune reactant gE antbody,T2 clls lgG antibody lgG antbody Toells Antigen Soluble antigen Cel or mattx- assodated antigen Souble antigen Soluble antigen Cell-assocated antoen Effector Mast-oel 08o Macrophage mechanism actvation actvation 6 Example of Allergic hnits. 阳8o Senm sickness. n ncon Contad demattis hypersensitivity asthma,systemic Arthus reaction reacton anaphyaxis 1997 Current Biology Ltd./Garland Publishing.In Immune-Mediated Hypersensitivities