White J G
Am J Pathol. 1972 Feb;66(2):295-312.
The existence of two separate groups of membrane-enclosed channels in platelets, the open canalicular system (OCS) and the dense tubular system (DTS), has been recognized for several years. The present study has employed ultrastructural observations on normal platelets, cells from a child with the gray platelet syndrome and cytochemical localization of peroxidase in platelets to define the origin of the DTS and point out a specialized membrane complex in platelets formed by interaction of channels from the OCS and DTS. The similarities of membrane complexes in platelets to the organization of membrane systems in muscle is pointed out, and their potential function as the sarcoplasmic reticulum of platelets is discussed.
血小板中存在两组独立的膜封闭通道，即开放管道系统（OCS）和致密管道系统（DTS），这一现象已被认识多年。本研究通过对正常血小板、一名患有灰色血小板综合征儿童的细胞进行超微结构观察，以及对血小板中过氧化物酶进行细胞化学定位，来确定DTS的起源，并指出血小板中由OCS和DTS通道相互作用形成的一种特殊膜复合体。文中指出了血小板中膜复合体与肌肉膜系统组织的相似性，并讨论了它们作为血小板肌浆网的潜在功能。
