Abstract
RECOGNITION of foreign particles in invertebrates is shown by the sticking of these particles to the circulating free amoebocytes of the host. The marine invertebrate Sipunculus nudus, phylum Sipunculida, has among its coelomic fluid (‘blood’) cells a remarkable ‘urn cell’ which secretes mucus that is sticky for foreign cells, but not for autologous cells. We have studied the biological specificity of this phenomenon and have attempted to alter the surface of autologous erythrocytes to render them sufficiently ‘foreign’ to stick to urn mucus.
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References
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BANG, B., BANG, F. Cell recognition by mucus secreted by urn cell of Sipunculus nudus. Nature 253, 634–635 (1975). https://doi.org/10.1038/253634a0
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DOI: https://doi.org/10.1038/253634a0
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