Abstract
STUDIES on tunicates, insects, annelids and the cœlenterate Tubularia1,2 have revealed the presence of two main types of leucocytes in them: (a) agranular, amœboid phagocytes, and (b) granular, poorly or non-amœboid and non-phagocytic elements, for which I have proposed the term ‘trephocytes'. In the organisms mentioned above, trephocytes frequently constitute 50–75 per cent of all leucocytes. Their inclusions are of a nutritive nature and are released into the blood, the tissues, or directly into other cells, a function referred to as ‘trephocytosis'. Trephocytes are highly active in growth, and the study of trephocytosis proved instrumental in elucidating some of its manifestations and correlations.
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LIEBMAN, E. Trephocytes in Arbacia punctulata and their Role in Ovular Growth and in Respiration. Nature 164, 459 (1949). https://doi.org/10.1038/164459a0
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DOI: https://doi.org/10.1038/164459a0
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