核内体 Endosome
（重定向自Multivesicular body）
核内体（英语：Endosome，又称内体）在细胞生物学中指的是一种真核细胞中的膜结合细胞器，属于一种囊泡结构。作为细胞内吞作用中运载途径的一个区室，核内体从细胞质膜被传递到溶酶体被其降解，或者再循环回到细胞质膜。一个成熟的内体直径大约500纳米。
Multivesicular body
中文百科
英语百科
Endosome 核内体
（重定向自Multivesicular body）
In cell biology, an endosome is a membrane-bound compartment inside eukaryotic cells. It is a compartment of the endocytic membrane transport pathway originating from the trans Golgi membrane. Molecules or ligands internalized from the plasma membrane can follow this pathway all the way to lysosomes for degradation, or they can be recycled back to the plasma membrane. Molecules are also transported to endosomes from the trans-Golgi network and either continue to lysosomes or recycle back to the Golgi. Endosomes can be classified as early, sorting, or late depending on their stage post internalization. Endosomes represent a major sorting compartment of the endomembrane system in cells. In HeLa cells, endosomes are approximately 500 nm in diameter when fully mature.
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