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An immunohistochemical study of steroid binding by endornetrial glandular epithelial cells throughout the menstrual cycle
Author(s) -
SIVRIDIS E.,
BUCKLEY C. H.,
FOX H.
Publication year - 1987
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1987.tb03176.x
Subject(s) - immunohistochemistry , menstrual cycle , steroid , epithelium , biology , medicine , endocrinology , pathology , hormone
Summary An immunohistochemical technique was used to demonstrate oestrogen and progesterone binding by endornetrial glandular epithelial cells at various stages of the menstrual cycle. A cross‐section of steroid binding sites, including low affinity, concentration dependent Type 11 and III binding sites, were demonstrated but only in cells which contain the classical high affinity receptor. The technique demonstrated both free binding sites and receptor‐hormone complexes within the cytoplasm but was poorly effective in demonstrating nuclear complexes. Oestrogen binding sites were shown to reach a peak during the late proliferative and early secretory phases of the cycle: oestrogen binding capacity remained high during the mid and late secretory phases. Progesterone binding capacity rose progressively throughout the proliferative and early secretory phase.