Figure 9

Differential alteration of MHC and co-stimulatory molecules in KO BAL cells. B7.1, B7.2 are co-stimulatory molecules expressed on alveolar macrophages and other antigen presentation cells like the dendritic cells and also B cells and monocytes. Expression of the said molecules were measured by FACS using specific fluorochrome conjugated antibodies from Pharmingen. The data presented shows percent cells positive for the given antigen, expressed as mean ± SEM. n=4/group.