Human medullary and cortical thymocytes are distinguishable according to the presence or absence of cytochemically demonstrable acid α-naphthyl acetate esterase (ANAE) activity
Carboxylic Ester Hydrolases
Naphthol AS D Esterase
The studies presented here represent, the first demonstration that human cortical and medullary thymocytes, as defined histologically, represent distinctive populations. It also represents further evidence that human medullary thymocytes and mature peripheral blood T cells share similar characteristics, analogous to the mouse.