Palisano J R
Department of Biology, Emory & Henry College, Virginia 24327-0947.
Cell Biol Int Rep. 1990 Nov;14(11):1025-32. doi: 10.1016/0309-1651(90)90114-e.
Confronting cisternae (CC) are described for the first time in normal fetal rat and mouse liver and intestinal epithelial cells. In these cells, CC characteristically consist of 2 parallel cisternae which are devoid of ribosomes on their juxtaposed surfaces. The intracisternal spacing is consistently 20 nm. While CC occur in rapidly proliferating tissues such as fetal liver and intestinal epithelium, they do not occur in hepatocytes following partial hepatectomy. Although it has been postulated that the intact CC profiles represent a mechanism of assuring the presence of pre-formed nuclear envelope (NE) or rough endoplasmic reticulum (RER) in cells, it is more likely that the subunits which result from CC degradation serve as a pool of membrane precursors for new NE or RER.
首次在正常胎鼠和小鼠肝脏及肠上皮细胞中描述了对置池（CC）。在这些细胞中，CC的特征是由2个平行的池组成，其并列表面没有核糖体。池内间距始终为20纳米。虽然CC出现在快速增殖的组织如胎肝和肠上皮中，但在部分肝切除后的肝细胞中却不存在。尽管有人推测完整的CC形态代表了一种确保细胞中预先形成的核膜（NE）或粗面内质网（RER）存在的机制，但更有可能的是，CC降解产生的亚基作为新的NE或RER的膜前体库。
