Evidence of the Occurrence of Calcitonin Cells in the Ultimobranchial Follicle of the Rat Postnatal Thyroid
作者:
I. Martin-Lacave,
E. Conde,
A. Moreno,
J.C. Utrilla,
H. Galera-Davidsona,
期刊:
Cells Tissues Organs
(Karger Available online 1992)
卷期:
Volume 144,
issue 2
页码: 93-96
ISSN:1422-6405
年代: 1992
DOI:10.1159/000147290
出版商: S. Karger AG
关键词: Ultimobranchial follicle;Calcitonin;C cells;Follicular cells;Thyroid rat
数据来源: Karger
摘要:
A study on thyroid glands of Wistar rats of ages ranging from 1 to 120 days was carried out. The glands were serially sectioned and stained for calcitonin using the peroxidase antiperoxidase method. All the thyroids contained ultimobranchial follicles (UBF) located partially embedded among the usual follicles but in a 5-day-old rat this structure showed an unusual position in the interstitium of connective tissue between the cartilage of the trachea and the thyroid gland. We have observed in the wall of that UBF the presence not only of resting C cells but also mitotic figures of C cells. Furthermore, on the opposite side of the same UBF an active area of formation of thyroid follicles was found. These observations provided the first evidence of the contribution of the UBF in the formation of C cells during the postnatal life of the rat. Furthermore, it is suggested that some C cells may share a common origin with ultimobranchially derived follicular cells.
点击下载:
PDF
(952KB)
返 回