AAT Bioquest

What are secondary lysosomes?

Posted October 15, 2022


Secondary lysosomes are vesicles created from the fusion of primary lysosomes and endosomes. This fusion causes the previously inactive enzymes to become activated and help assist in digesting macromolecules. Secondary lysosomes are larger in size and are capable of releasing their enzymes to degrade extracellular material. Additional names for secondary lysosomes are heterophagosomes or digestive vacuoles.   

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