Dictionary #5

Caspase: A family of cysteine proteases that cleave after an aspartate residue. The term caspase incorporates these elements (cysteine, aspartate, protease), which play important roles in the chain of reactions that leads to apoptosis.

Anaphylatoxins: The complement split products C3a and C5a, which mediate degranulation of mast cells and basophils, resulting in release of mediators that induce contraction of smooth muscle and increased vascular permeability.

Iccosomes: Immune-complex-coated cell fragments often found coating the spines of follicular dendritic cells.