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1996-02-27
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38 lines
Document 0667
DOCN M9630667
TI Prolactin receptor expression in lymphocytes from patients with
hyperprolactinemia or acromegaly.
DT 9603
AU Leite-de-Moraes MC; Touraine P; Kelly PA; Kuttenn F; Dardenne M;
Universite Rene Descartes, Paris V, CNRS URA 1461, Hopital; Necker,
Paris, France.
SO J Endocrinol. 1995 Nov;147(2):353-9. Unique Identifier : AIDSLINE
MED/96096308
AB Previous reports demonstrated that prolactin receptors (PRL-R) are
widely expressed on cells of the immune system. We analyzed a possible
regulation of PRL-R expression on human mononucleated blood cells by
prolactin (PRL) itself. PRL-R expression was analyzed by
immunofluorescence on T and B lymphocytes and monocytes from peripheral
blood mononucleated cells (PBMC) of patients with hyperprolactinemia or
acromegaly compared with sex- and age-matched control subjects. The
frequency of PRL-R positive cells and the intensity of PRL-R expression
was only modified among the CD8+ T cell population of hyperprolactinemic
patients with macroadenoma. No correlation was reported between PRL-R
expression and circulating PRL levels. The percentage of PRL-R+ cells on
B or T lymphocytes and monocytes as well as the capacity of PBMC to
proliferate in response to T cell mitogens were not significantly
different in bromocriptine-treated compared with untreated patients.
These findings suggest that factors other than pituitary PRL play the
major role in regulating PRL-R expression on cells of the immune system.
DE Acromegaly/DRUG THERAPY/*METABOLISM Adenoma/IMMUNOLOGY/METABOLISM
Adult Bromocriptine/THERAPEUTIC USE Cells, Cultured CD8-Positive
T-Lymphocytes/METABOLISM/PATHOLOGY Down-Regulation (Physiology) Flow
Cytometry Human Hyperprolactinemia/DRUG THERAPY/IMMUNOLOGY/*METABOLISM
Lymphocyte Count Lymphocytes/*METABOLISM Middle Age Pituitary
Neoplasms/IMMUNOLOGY/METABOLISM Receptors, Prolactin/DRUG
EFFECTS/*METABOLISM Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).