| Abstract: | Lymph node cells from guinea pigs with specific delayed hypersensitivity release macrophage agglutination (MAggF) and migration inhibition factors (MIF) upon exposure to antigen or concanavalin A in serum-free medium. MAggF in culture supernatants was absorbed neither by immunoabsorbents made with a rabbit anti-guinea pig lymphokine serum that removed MIF, nor by immunoabsorbents made with rabbit anti-guinea pig Ig. These results suggest that MAggF is antigenically distinct from MIF and Ig. |
