PMID: 1203954Nov 12, 1975Paper

Exocytosis couples to endocytosis of ferritin in parotid acinar cells from isoprenalin stimulated rats

Cell and Tissue Research
M Kalina, R Robinovitch

Abstract

Distribution of acid phosphatase as a marker enzyme for lysosomes was investigated in the isoprenalin stimulated rat parotid gland. The enzyme was localized in lipofuscin-like bodies as well as in non-discharged granules. The appearance of these bodies was correlated in time to the appearance of smooth vesicles and reduction of the acinar lumen. Ferritin, used as a tracer and introduced into the stimulated gland via cannulated parotid ducts, was found in smooth vesicles, vacuoles and lipofuscin-like bodies throughout the cytoplasm of the acinar cells. Very often ferritin-containing vesicles were found in the vicinity of the Golgi complex. In most cases the vesicles containing ferritin also showed acid phosphatase reaction product. A possible correlation between the lysosomal system and the process of recycling and degradation of membranes in the stimulated gland is discussed.

Citations

Jan 1, 1984·Archives of Oral Biology·S W Whitson, A R Hand
Jan 1, 1990·Biology of the Cell·L R Mata, J F David-Ferreira
Jan 1, 1977·Neuroscience·H Winkler
Nov 1, 1977·Proceedings of the National Academy of Sciences of the United States of America·V Herzog, M G Farquhar
Sep 1, 1977·Survey of Ophthalmology·G O WaringC Berris
Jan 1, 1991·Journal of Electron Microscopy Technique·A R Beaudoin, G Grondin
Mar 1, 1986·The Journal of Experimental Zoology·M J Donovan, N H Hart
Aug 1, 1983·Journal of Microscopy·G H Cope
Jun 1, 1989·Experimental Cell Research·A Hunter, J H Phillips

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