关于平滑肌细胞中黑素小体的形成与降解：大鼠瞳孔括约肌的电子显微镜研究

On the formation and degradation of melanosomes in smooth muscle cells: electron microscopic investigation on the m. sphincter pupillae of the rat.

作者信息

Stanka P, Bargsten G, Sahlmann B

机构信息

Abteilung für Mikromorphologie, Institut für Anatomie der Ruhr-Universität Bochum, Fed. Rep. Germany.

出版信息

Pigment Cell Res. 1988;1(5):358-60. doi: 10.1111/j.1600-0749.1988.tb00133.x.

DOI:10.1111/j.1600-0749.1988.tb00133.x

PMID:3237604

Abstract

The electron microscopic investigation of the m. sphincter pupillae of adult black hooded rats showed the presence of melanosomes in the smooth muscle cells. In shape and size the melanosomes were like those of the iridial epithelium. In addition, premelanosomes and tyrosinase activity were observed as well as melanosomes with disintegrated content and acid phosphatase activity. The data suggest that the smooth muscle cells of the m. sphincter pupillae are capable of the formation and degradation of melanosomes.

摘要

对成年黑帽大鼠瞳孔括约肌的电子显微镜研究显示，平滑肌细胞中存在黑素小体。黑素小体的形状和大小与虹膜上皮细胞的黑素小体相似。此外，还观察到前黑素小体和酪氨酸酶活性，以及内容物分解的黑素小体和酸性磷酸酶活性。这些数据表明，瞳孔括约肌的平滑肌细胞能够形成和降解黑素小体。