MF, Centralna medicinska knjižnica, Ljubljana (CMK)
Urnik v septembru: ponedeljek, torek in četrtek: 8.00 do 19.00, sreda in petek: 8.00 do 16.00. Izjemoma bo 5. 9. in 16. 9., knjižnica odprta med 8.00 in 16.00.
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Pre-receptor regulation of 11-oxyandrogens differs between normal and cancerous endometrium and across endometrial cancer grades and molecular subtypes [Elektronski vir]Gjorgoska, Marija ; Šturm, Lea ; Lanišnik-Rižner, TeaBackground: Endometrial cancer (EC) is a prevalent gynecological malignancy globally, with a rising incidence trend. While classic androgens have been implicated with EC risk, the role of their ... 11-oxygenated metabolites is poorly understood. Here, we studied 11-oxyandrogen formation from steroid precursors in EC for the first time.We performed in vitro studies on a panel of four EC cell lines of varying differentiation degree and molecular subtype and a control cell line of normal endometrium to assess 11-oxyandrogen formation from steroid precursors. We also characterized the transcriptomic effects of dihydrotestosterone (DHT) and 11-keto-DHT on Ishikawa and RL95-2. Key molecular players in 11-oxyandrogen metabolism and action were explored in endometrial tumors using public transcriptomic datasets.We discovered that within endometrial tumors, the formation of 11-oxyandrogens does not occur from classic androgen precursors. However, we observed distinct regulatory mechanisms at a pre-receptor level in normal endometrium compared to cancerous tissue, and between low-and high-grade tumors. Specifically, in vitro models of low-grade EC formed higher levels of bioactive 11-keto-testosterone from 11-oxyandrogen precursors compared to models of noncancerous endometrium and high-grade, TP53-mutated EC. Moreover, the potent androgen, DHT and its 11-keto homologue induced mild transcriptomic effects on androgen receptor (AR)-expressing EC model, Ishikawa. Finally, using public transcriptomic datasets, we found HSD11B2 and SRD5A2, coding for key enzymes in steroid metabolism, to be associated with better disease-specific survival, whereas higher intra-tumoral AR expression to correlate with lower recurrence in TP53-wt tumors.The intra-tumoral metabolism of 11-oxyandrogen precursors is characteristic for low-grade EC of non-TP53-alt molecular subtypes. Our findings support further exploration of circulating 11-oxyandrogens as prognostic biomarkers in EC.Vir: Frontiers in endocrinology [Elektronski vir]. - ISSN 1664-2392 (Vol. 15, iss. [article no.] 1404804, Avg. 2024, str. 1-12)Vrsta gradiva - e-članekLeto - 2024Jezik - angleškiCOBISS.SI-ID - 203016707
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Gjorgoska, Marija | 55074 |
Šturm, Lea | ![]() |
Lanišnik-Rižner, Tea | 11699 |
Vir: Osebne bibliografije
in: SICRIS
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