大鼠切牙分泌期成釉细胞中微管的三维网络结构。

Three-dimensional network of microtubules in secretory ameloblasts of rat incisors.

作者信息

Nishikawa S, Kitamura H

出版信息

Arch Oral Biol. 1985;30(1):1-11. doi: 10.1016/0003-9969(85)90018-4.

Abstract

Secretory ameloblasts appear to contain isolated microtubules and microtubules arranged in bundles associated with filaments or sheets of filaments. The relation between isolated and bundled microtubules in secretory ameloblasts was investigated by serial sections. Some isolated microtubules entered microtubule bundles in adjacent sections. Microtubules which diverged from a bundle sometimes converged into another bundle in other sections. Microtubules were associated with filaments or sheets of filaments for varying distances. It is concluded that isolated microtubules frequently form bundles by joining with other microtubules, and thus, microtubules make a three-dimensional network throughout the whole cytoplasm which is probably concerned with the transport of secretion granules.

摘要

分泌性成釉细胞似乎含有孤立的微管以及与丝状结构或丝状薄片相关联成束排列的微管。通过连续切片研究了分泌性成釉细胞中孤立微管和成束微管之间的关系。一些孤立的微管在相邻切片中进入微管束。从一个微管束发散出来的微管有时在其他切片中会汇聚到另一个微管束中。微管与丝状结构或丝状薄片在不同距离上相关联。得出的结论是，孤立的微管经常通过与其他微管结合形成微管束，因此，微管在整个细胞质中形成一个三维网络，这可能与分泌颗粒的运输有关。