Cytoplasm contained abundant mitochondria and pinocytotic
31,32) Hofbauer cells have many histologic features of macrophages in other organs--they are large (10-30-[micro]m diameter) cells with cytoplasmic processes, and contain large vacuoles, pinocytotic
vesicles, and intracytoplasmic granules.
FSBM induces significantly lower morphological changes such as disintegration of microvilli, absence of granulated pinocytotic
vacuoles, etc in fingerling rainbow trouts (Yamamoto et al.
Hence, most promising drug delivery through brain capillaries is possible by augmentation of pinocytotic
The apical cytoplasmic membrane forms pinocytotic
pits, and the subapical cytoplasm contains numerous pinocytotic
Examination of tumor cells on electron microscopy will reveal (1) desmosomes, (2) arrays of cytoplasmic, uniformly dispersed microfilaments in the presence or absence of dense bodies, and (3) pinocytotic
vesicles with basal lamina separating the tumor cells from the stroma.
The small pits observed scattered over the cell surface probably represent pinocytotic
vesicles, previously documented (SVEDBERGH & BILL, 1972).
The presence of many apical pinocytotic
vesicles and of a large central vacuole indicates that B-cells of M.
Cells with absorptive function that is rarely observed in the epithelial layer have microvilli on the free surface; and several pinocytotic
vesicles, multivesicular bodies, and mitochondria were found in the upper portion of cytoplasm (Fig.