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  • Title: A cytochemical study of acid phosphatase, thiamine pyrophosphatase and horseradish peroxidase in the Golgi-GERL complex of hepatoma ascites cells.
    Author: Wang JJ, Chang JP, Hsu CY, Liang HM, Moller PC.
    Journal: Cell Tissue Res; 1983; 233(2):367-76. PubMed ID: 6137285.
    Abstract:
    Data from studies of ascitic cells of Chang hepatoma have shown that acid phosphatase (ACPase) can be localized simultaneously within the trans portion of the Golgi apparatus and in tubules of the Golgi-endoplasmic reticulum-lysosome (GERL) system. Reaction products of thiamine pyrophosphatase (TPPase) were also present consistently within trans elements of the Golgi apparatus and within GERL tubules. These new findings indicate that a close physiological association may exist between the Golgi apparatus and GERL, a concept that is consistent with previous observations of fibroblasts. When horseradish peroxidase (PO) is injected intraperitoneally into ascites-bearing rats and the ascitic cells withdrawn at different time intervals, PO could be localized within vesicles and tubules in the GERL region but could not be detected within the Golgi apparatus. Bulk-phase endocytosis requires a long time and a high concentration of PO to occur. The presence of PO within GERL indicates that this organelle may play a role in transporting or processing of certain exogenous proteins.
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