Membrane micropartlcles are shed from the plasma membrane of most eukaryotic cells when these cells were undergone activation or apoptosis, and released into the extracellular environment.

• 摘要膜微粒子是细胞膜脱落下来形成的微粒样物质。多种细胞受到激活或者凋亡时产生膜微粒子并且释放到细胞外环境。