ALB and central nervous system cancer: For instance, drug‐loaded albumin nanoparticles (nanoparticles made from denatured bovine serum albumin) have been shown to be specifically internalized by neutrophils activated in situ, which in turn, migrate across blood vessels into inflammatory tissues.[274] Encapsulation of core‐shell structured magnetic mesoporous silica nanoparticles into neutrophils has recently been used as tracking probes or drug delivery nanocarriers for inflamed glioma‐targeting theranostics.[275]