Immunocytochemical localization of S-100 protein in the hypophysis and saccus vasculosus of the elasmobranchs Mustelus manazo and Scyliorhinus torazame |
| |
Authors: | Dr Akira Chiba Shin Ohnishi Yoshiharu Honma |
| |
Institution: | (1) Department of Biology, School of Dentistry at Niigata, Nippon Dental University, Niigata, Japan;(2) Sado Marine Biological Station, Faculty of Science, Niigata University, Niigata, Japan;(3) Department of Biology, School of Dentistry at Niigata, Nippon Dental University, 951 Niigata, Japan |
| |
Abstract: | Summary S-100 protein-immunoreactive cells were demonstrated by immunocytochemical procedures in the hypophysis and saccus vasculosus of two species of elasmobranchs (Mustelus manazo and Scyliorhinus torazame). In the saccus vasculosus of M. manazo, immunoreactivity was detectable exclusively in the fibrous portions interposed between the epithelial layer and the blood vessels. In the neurohypophysis, tanycytes and astrocytes of the median eminence were immunostained, but only a few labeled cells were found in the neurointermediate lobe. In S. torazame, the neurohypophysis displayed a similar distribution of immunoreactivity, but there were no labeled cells in the saccus vasculosus. In both species, none of the glandular cells of the hypophysis displayed immunoreactivity. Electron-microscopic examination showed that the immunostained cells in the saccus vasculosus correspond to astrocytes. |
| |
Keywords: | S-100 protein Immunocytochemistry Saccus vasculosus Pituitary gland pars nervosa Mustelus manazo Scyliorhinus torazame(Elasmobranchii) |
本文献已被 SpringerLink 等数据库收录! |
|