University of South Africa, Department of Life and Consumer Sciences, Cnr Christiaan de Wet and Pioneer Ave, Private Bag X6, Florida 1710, South Africa.
Tissue Cell. 2010 Dec;42(6):348-54. doi: 10.1016/j.tice.2010.07.010. Epub 2010 Sep 9.
The ultrastructure of the Sertoli cell of the vervet monkey was studied using both scanning and transmission electron microscopic techniques. SEM micrographs revealed perforated sleeve-like processes which encased mature elongated spermatids which are ready for spermiation. TEM micrographs showed a large Sertoli cell nucleus characterized by many lobes (4-5) and consisting of a homogenous nucleoplasm and a distinctive nucleolus. The nucleus occupies a significant portion of the basal region of the cell. The distribution of chromatin clearly shows high activity of these cells. Lipid droplets and free ribosomes are also found scattered throughout the cytoplasm. Well-developed Golgi apparatus is found in the basal region of the cell. There is phagocytic activity in the Sertoli cells as revealed by the presence of numerous phagosomes. Numerous mitochondria with well-developed tubular cristae are found on the basal side of the nucleus, whereas few mitochondria are located on the apical side of the nucleus. Distinct desmosomes are located between cells. A well-developed smooth endoplasmic reticulum and granular endoplasmic reticulum are frequently found in the cytoplasm of the Sertoli cells. The results of this investigation showed that Sertoli cells of the vervet monkey are almost similar to those of humans and show many similarities with other mammalian species.
应用扫描和透射电子显微镜技术研究了长尾猴的支持细胞的超微结构。扫描电镜照片显示，套状的有孔过程将成熟的长形精子包绕，这些精子已准备好进行精子发生。透射电镜照片显示，支持细胞的细胞核具有许多叶（4-5 个），由均匀的核质和一个独特的核仁组成。细胞核占据细胞基底区的很大一部分。染色质的分布清楚地表明这些细胞具有很高的活性。脂滴和游离核糖体也散布在细胞质中。发达的高尔基器位于细胞的基底区。支持细胞具有吞噬活性，这表现为存在许多吞噬体。许多具有发达管状嵴的线粒体位于核的基底侧，而核的顶侧只有少数线粒体。细胞之间有明显的桥粒。发达的光滑内质网和颗粒内质网在支持细胞的细胞质中经常被发现。这项研究的结果表明，长尾猴的支持细胞与人类的支持细胞非常相似，与其他哺乳动物物种也有许多相似之处。
