secondary lysosome


secondary lysosome
Term used to describe intracellular vacuoles formed by the fusion of lysosomes with organelles (autosomes) or with primary phagosomes. Residual bodies are the remnants of secondary lysosomes containing indigestible material.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • secondary lysosome — a primary (or another secondary) lysosome that has fused with a phagosome or pinosome, bringing hydrolases in contact with the ingested material and resulting in digestion of the material. See also autophagy (def. 2) and heterophagy …   Medical dictionary

  • Lysosome — An organelle (a little organ) within a cell containing enzymes that degrade macromolecules (large molecules) and other materials (such as bacteria) taken up by a cell during the process of endocytosis. In endocytosis, macromolecules and particles …   Medical dictionary

  • lysosome — Membrane bounded cytoplasmic organelle containing a variety of hydrolytic enzymes that can be released into a phagosome or to the exterior. Release of lysosomal enzymes in a dead cell leads to autolysis (and is the reason for hanging game, to… …   Dictionary of molecular biology

  • digestive vacuole — secondary lysosome …   Medical dictionary

  • heterolysosome — Secondary lysosome formed by fusion of a lysosome with another intracellular vesicle …   Dictionary of molecular biology

  • multivesicular body — Secondary lysosome containing many vesicles of around 50nm diameter …   Dictionary of molecular biology

  • residual body — n 1) a cytoplasmic vacuole containing the leftover products of digestion after fusion with the contents of a lysosome 2) any of the small cytoplasmic masses that are shed from the developing sperms in spermiogenesis and that lack a nucleus but… …   Medical dictionary

  • aurosome — Gold containing secondary lysosome found in patients treated with gold complexes …   Dictionary of molecular biology

  • digestive vacuole — Intracellular vacuole into which lysosomal enzymes are discharged and digestion of the contents occurs. More commonly referred to as a secondary lysosome …   Dictionary of molecular biology

  • cytolysosome — A variety of secondary lysosome that contains the remnants of mitochondria, ribosomes, or other organelles. SYN: autophagic vacuole. * * * cy·to·ly·so·some (si″to liґso sōm) autophagosome …   Medical dictionary


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