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  • Title: On the functions of the pore cells in the connective tissue of terrestrial pulmonate molluscs.
    Author: Skelding JM, Newell PF.
    Journal: Cell Tissue Res; 1975; 156(3):381-90. PubMed ID: 1122526.
    Abstract:
    The fine structure of the pore cells in connective tissue in the kidney of Achatina achatina and the skin of the slug Arion hortensis is described and evidence is presented which shows that these cells, in the latter species, are involved in the synthesis of the respiratory blood pigment, haemocyanin. The involvement of these cells in phagocytosis of colloidal particles, was demonstrated following introduction of ferritin and colloidal gold into the blood. The extracellular coat which surrounds the cells is permeable to ferritin, but is impermeable to colloidal gold. Following penetration of the extracellular coat the ferritin enters the sub-surface cisternae and is taken into the cells where it crystallises within membrane-bound vesicles.
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