Calcitonin immunostaining in monkey uterus during menstrual cycle and early pregnancy.
Calcitonin has been shown to be a progesterone-regulated potential marker of the receptive endometrium in the rat and human. The present study was undertaken to immunohistochemically investigate the changes in calcitonin in the monkey uterus during the menstrual cycle and periimplantation period. Calcitonin immunostaining was primarily localized in the glandular epithelium on d 16, 20, and 25 of the menstrual cycle. During early pregnancy, calcitonin immunostaining was strongly observed in the glandular epithelium only on d 9 of pregnancy, the day before implantation. Since the high level of calcitonin immunostaining in the glandular epithelium during the luteal phase of the menstrual cycle and periimplantation period matched the high level of maternal progesterone during this period, the expression of calcitonin in monkey endometrium may be under the regulation of maternal progesterone.
Diao
Hong-Lu
HL
College of Life Sciences, Northeast Agricultural University, Harbin, China.
Li
Shi-Jie
SJ
Wang
Hong-Bin
HB
Yang
Zeng-Ming
ZM
D000818:Animals; D002116:Calcitonin / Q000032:analysis*; D010064:Embryo Implantation; D004848:Epithelium / Q000737:chemistry; D005260:Female; D007150:Immunohistochemistry; D008253:Macaca mulatta; D008597:Menstrual Cycle; D009215:Myometrium / Q000737:chemistry; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D014599:Uterus / Q000737:chemistry*
D011374:Progesterone; D002116:Calcitonin