Fig. 1.
Three proposed pathways to explain IL-1β release from macrophages. (A) Lysis (as with cytolytic cell death). (B) Blebbing (as with the ATP induced extrusion of microvesicles containing IL-1β.(C) Exocytosis (as with the PLA2-mediated exocytosis of lysosomal vesicles, see ref. 6).
