Iba1 (Ionized calcium-binding adapter molecule1) is used as a microglial marker because it is expressed specifically in microglia in the central nervous system. In peripheral tissues, it is expressed in macrophages and is also known as AIF-1. Fujifilm Wako's "Anti Iba1, Rabbit (for immunocytochemistry)" (Product Number 019-19741) is used by researchers all over the world as a standard for microglia marker antibody. In addition, Fujifilm Wako has also developed "Anti Iba1, Rabbit Monoclonal Antibody (6A4), recombinant" (Product Number 018-28523), which has the same performance as Anti Iba1, Rabbit (for immunocytochemistry).