SwePub - sökning: WFRF:(Samson Chillon Thilo)

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1.	Demircan, Kamil, et al. (författare) Matched analysis of circulating selenium with the breast cancer selenotranscriptome: a multicentre prospective study 2023 Ingår i: Journal of Translational Medicine. - 1479-5876. Tidskriftsartikel (refereegranskat)abstract IntroductionLow serum selenium and altered tumour RNA expression of certain selenoproteins are associated with a poor breast cancer prognosis. Selenoprotein expression stringently depends on selenium availability, hence circulating selenium may interact with tumour selenoprotein expression. However, there is no matched analysis to date.MethodsThis study included 1453 patients with newly diagnosed breast cancer from the multicentric prospective Sweden Cancerome Analysis Network – Breast study. Total serum selenium, selenoprotein P and glutathione peroxidase 3 were analysed at time of diagnosis. Bulk RNA-sequencing was conducted in matched tumour tissues. Fully adjusted Cox regression models with an interaction term were employed to detect dose-dependent interactions of circulating selenium with the associations of tumour selenoprotein mRNA expression and mortality.Results237 deaths were recorded within ~ 9 years follow-up. All three serum selenium biomarkers correlated positively (p ConclusionsThis first unbiased analysis of serum selenium with the breast cancer selenotranscriptome identified an effect-modification of selenium on the associations of DIO1, SELENOM, and DIO3 with prognosis. Selenium substitution in patients with DIO1-expressing tumours merits consideration to improve survival.

Demircan, Kamil, et al. (författare)
Matched analysis of circulating selenium with the breast cancer selenotranscriptome: a multicentre prospective study
2023
Ingår i: Journal of Translational Medicine. - 1479-5876.
Tidskriftsartikel (refereegranskat)abstract
- IntroductionLow serum selenium and altered tumour RNA expression of certain selenoproteins are associated with a poor breast cancer prognosis. Selenoprotein expression stringently depends on selenium availability, hence circulating selenium may interact with tumour selenoprotein expression. However, there is no matched analysis to date.MethodsThis study included 1453 patients with newly diagnosed breast cancer from the multicentric prospective Sweden Cancerome Analysis Network – Breast study. Total serum selenium, selenoprotein P and glutathione peroxidase 3 were analysed at time of diagnosis. Bulk RNA-sequencing was conducted in matched tumour tissues. Fully adjusted Cox regression models with an interaction term were employed to detect dose-dependent interactions of circulating selenium with the associations of tumour selenoprotein mRNA expression and mortality.Results237 deaths were recorded within ~ 9 years follow-up. All three serum selenium biomarkers correlated positively (p ConclusionsThis first unbiased analysis of serum selenium with the breast cancer selenotranscriptome identified an effect-modification of selenium on the associations of DIO1, SELENOM, and DIO3 with prognosis. Selenium substitution in patients with DIO1-expressing tumours merits consideration to improve survival.

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