primary lysosome

primary lysosome

n.
A cytoplasmic body that is produced at the Golgi complex where hydrolytic enzymes are incorporated.
References in periodicals archive ?
As has been suggested regarding lysosomal inclusions in other cells, (9) the site of crystallization in this instance may be another cellular compartment, prior to its fusion with a primary lysosome.
It was hypothesized that the electron-dense (type 1) granules were phagocytosed foreign materials (microorganisms, or other granules) or internal waste materials (organelles or fragments); the low electron-dense granules (type 2) primary lysosomes, probably originating in the Golgi complex or endoplasmic reticulum; and the medium electron-dense granules, secondary lysosomes, formed by fusion of type 1 and type 2 granules or matured by type 1 granules, which absorbed some hydrolytic enzymes.
Electron microscopy revealed scattered primary lysosomes in the cytoplasm of the leukemic cells, confirming their myeloid lineage.

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