Oliferenko Snezhana, Chew Ting Gang, Balasubramanian Mohan K
Temasek Life Sciences Laboratory and the Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
Genes Dev. 2009 Mar 15;23(6):660-74. doi: 10.1101/gad.1772009.
Cytokinesis is the terminal step of the cell cycle during which a mother cell divides into daughter cells. Often, the machinery of cytokinesis is positioned in such a way that daughter cells are born roughly equal in size. However, in many specialized cell types or under certain environmental conditions, the cell division machinery is placed at nonmedial positions to produce daughter cells of different sizes and in many cases of different fates. Here we review the different mechanisms that position the division machinery in prokaryotic and eukaryotic cell types. We also describe cytokinesis-positioning mechanisms that are not adequately explained by studies in model organisms and model cell types.
胞质分裂是细胞周期的最后一步,在此过程中母细胞分裂为子细胞。通常,胞质分裂机制的定位方式使得产生的子细胞大小大致相等。然而,在许多特殊细胞类型中或在某些环境条件下,细胞分裂机制位于非中间位置,以产生大小不同且在许多情况下命运不同的子细胞。在这里,我们综述了在原核和真核细胞类型中定位分裂机制的不同机制。我们还描述了模型生物和模型细胞类型的研究未能充分解释的胞质分裂定位机制。