抄録
Reticuloendothelial cells (RES cells) of human bone marrow were enzymehistochemically and cytochemically studied. Acid phosphatase staining (azo-dye method) was most suitable for the demonstration of RES cells. Attempts were made to classify RES cells of smear specimens into 5 types according to the size of nucleus, volume of cytoplasm and phagocytosis with the aid of acid phosphatase staining, and ‘RES cell picture;’ was made by calculating the percentage of all types concerned. Analysis of 'RES cell picture' showed the presence of a close correlation between function and morphology of RES cells. Intracytoplasmic bodies of RES cells other than mitochondria, endoplasmic reticulum, Golgi apparatus and ribosome were electron-microscopically studied. Classification of these bodies was made into 5 types, of which relation to acid phosphatase staining was discussed and lysosomal nature of these bodies was mentioned.
