Possible biogenesis of the membrane-bound bodies of the thick basal laminae of the proximal convoluted tubule cells of the gerbil Meriones crassus. |
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Authors: | A M Safer |
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Affiliation: | Department of Zoology, Faculty of Science, University of Kuwait, Safat. |
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Abstract: | The ultrastructural findings on the kidney cells of the gerbil Meriones crassus have shown the presence of finger-like projections emerging from the basal part of the epithelial cells of the proximal convoluted tubules into the matrix of the thick basal laminae and that structure like membrane-bound bodies are commonly seen in continuity with these processes. Such findings would give clues for the possible biogenesis of the membrane-bound bodies from the epithelial cells. Such an origin is consistent with the idea that either all or part of the population of membrane-bound bodies is produced by a process of budding off from the basal cell membrane rather than by extension of an intracytoplasmic precursor through the plasma membrane. |
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