1981
DOI: 10.1007/bf01806266
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Tumour steroid hormone synthesis and estrogen receptor status in breast cancer patients

Abstract: SummaryThe capacity of breast cancer to synthesise active androgens and estrogens has been related to estrogen receptor (ER) status in 79 postmenopausal patients with breast can;er. Although there was no quantitative relationship between levels of ER and steroid metabolism in ER positive tumours, there was (a) a positive correlation between estrogen synthesis and ER positivity and (b) increased androgen synthesis and ER negativity. This may imply an inherent difference in the handling of hormones in ER positiv… Show more

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Cited by 4 publications
(2 citation statements)
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“…However, it seems likely that it is the level of oestrogen in the tissue, rather than that in the plasma which ultimately influences ER levels. In tumour tissue, the endogenous oestrogens derive not only from the plasma, but also from biosynthesis within the tumour (Miller & Forrest, 1974;Miller et al, 1981;Mason et al, 1981) and hydrolysis of oestrone sulphate (Santner et al, 1984); oestradiol rather than oestrone appears to be the major free oestrogen (Poortman et al, 1983). In general, in tumour tissue, oestrogen concentrations are likely to be higher when ER are present than when they are absent (Fishman et al, 1977;Edery et al, 1981;Thorson et al, 1982;Drafta et al, 1983), and in one study (Edery et al, 1981), tumour oestradiol content rose with increasing ER level.…”
mentioning
confidence: 96%
“…However, it seems likely that it is the level of oestrogen in the tissue, rather than that in the plasma which ultimately influences ER levels. In tumour tissue, the endogenous oestrogens derive not only from the plasma, but also from biosynthesis within the tumour (Miller & Forrest, 1974;Miller et al, 1981;Mason et al, 1981) and hydrolysis of oestrone sulphate (Santner et al, 1984); oestradiol rather than oestrone appears to be the major free oestrogen (Poortman et al, 1983). In general, in tumour tissue, oestrogen concentrations are likely to be higher when ER are present than when they are absent (Fishman et al, 1977;Edery et al, 1981;Thorson et al, 1982;Drafta et al, 1983), and in one study (Edery et al, 1981), tumour oestradiol content rose with increasing ER level.…”
mentioning
confidence: 96%
“…Σε 79 μετεμμηνοπαυσιακές ασθενείς με καρκίνο του μαστού, το περιεχό μενο των υποδοχέων οιστρογόνων συσχετίσθηκε με την ικανότητα των νεοπλασματικών κυτάρων να, συνθέτουν δραστικά ανδρογόνα και οιστρογόνα. Αν και στους θετικούς για οιστρογονικούς υποδοχείς όγκους δεν βρέθηκε ποσοτική συσχέτιση μεταξύ των επιπέδων των υποδοχέων και του μεταβολισμού^ των στεροειδών, εν τούτοις παρατηρήθηκαν α) θετική συσχέτιση μεταξύ της θετι : κότητας για υποδοχείς και της σύνθεσης οιστρογόνων και β) αυξημένη σύνθε ση ανδρογόνων στους αρνητικούς για υποδοχείς όγκους (Mason, et al, 1981).…”
Section: υποδοχείς οιστρογόνων και; σύνθεση στεροειδών ορμονών από τον όγκοunclassified