Hormone receptor expression variations in normal breast tissue: Preliminary results of a prospective observational study

Gianluca Franceschini, Riccardo Masetti, Giacomo Santandrea, Chiara Bellarosa, Dino Gibertoni, Maria C. Cucchi, Maria P. Foschini

Risultato della ricerca: Contributo in rivistaArticolo in rivista

Abstract

Normal breast tissue undergoes great variations during a woman’s life as a consequence of the different hormonal stimulation. The purpose of the present study was to examine the hormonal receptor expression variations according to age, menstrual cycle, menopausal state and body mass index. To this purpose, 49 tissue samples of normal breast tissue, obtained during surgery performed for benign and malignant conditions, were immunostained with Estrogen (ER), Progesterone (PR) and Androgen receptors (AR). In addition, Ki67 and Gross Cystic Disease Fluid Protein were studied. The data obtained revealed a great variability of hormone receptor expression. ER and AR generally increased in older and post-menopausal women, while young women presented a higher proliferative rate, evaluated with Ki67. PR increase was observed in women with BMI higher than 25. The different hormonal receptor expression could favor the development of breast cancer.
Lingua originaleEnglish
pagine (da-a)1-8
Numero di pagine8
RivistaJournal of Personalized Medicine
Volume11
DOI
Stato di pubblicazionePubblicato - 2021

Keywords

  • Breast cancer
  • Breast pathology
  • Normal breast
  • Hormone receptor
  • Hormone expression

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