Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-11-14
pubmed:abstractText
Using monoclonal antibodies against progestin receptors (PR) and estrogen receptors (ER), and polyclonal antibodies to thymulin (FTS) and keratin, localization of the sex steroid receptors was studied immunohistochemically in ovariectomized estrogen-treated rat thymus, with special reference to FTS-producing cells. Both ER- and PR-immunostained cells were mainly localized in the medullary region, especially at its periphery (i.e., the corticomedullary junction). A few cells were also situated in the subcapsular area. They were medium- to large-sized and had a dendritic cell process, some of which were immunohistochemically keratin- and FTS-positive, indicative of reticuloepithelial (RE) cells. Hassall's corpuscles were also receptor-positive and FTS-positive. T-cells were not immunostained with anti-ER, anti-PR or anti-FTS. Light microscopically, both ER and PR immunostainings were localized in the cytoplasm and/or nucleus of keratin-stained RE cells. Electron microscopically, both steroid receptors were shown more precisely to distribute as aggregates of osmiophilic black dots on polysomes and perinuclear space in the cytoplasm and on the euchromatin area in the nucleus. These results suggest that the sex steroids E and P exert their effects through receptors within RE cells which produce FTS to regulate T-cell differentiation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0165-6090
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-93
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Localization of sex steroid receptor cells, with special reference to thymulin (FTS)-producing cells in female rat thymus.
pubmed:affiliation
Department of Anatomy, Tokai University School of Medicine, Isehara City, Japan.
pubmed:publicationType
Journal Article, Comparative Study