2015
Molecular response of 4T1-induced mouse mammary tumours and healthy tissues to zinc treatment
SVOBODOVÁ, Markéta, Jaromír GUMULEC, Martina RAUDENSKÁ, Hana POLANSKÁ, Monika HOLUBOVÁ et. al.Základní údaje
Originální název
Molecular response of 4T1-induced mouse mammary tumours and healthy tissues to zinc treatment
Autoři
SVOBODOVÁ, Markéta (203 Česká republika, domácí), Jaromír GUMULEC (203 Česká republika, domácí), Martina RAUDENSKÁ (203 Česká republika, domácí), Hana POLANSKÁ (203 Česká republika, domácí), Monika HOLUBOVÁ (203 Česká republika, domácí), Jan BALVAN (203 Česká republika, domácí), Kristýna HUDCOVÁ (203 Česká republika, domácí), Lucia KNOPFOVÁ (203 Česká republika), René KIZEK (203 Česká republika), Vojtech ADAM (203 Česká republika), Petr BABULA (203 Česká republika, domácí) a Michal MASAŘÍK (203 Česká republika, garant, domácí)
Vydání
International Journal of Oncology, Athens, Spandidos Publications, 2015, 1019-6439
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Řecko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.018
Kód RIV
RIV/00216224:14110/15:00085106
Organizační jednotka
Lékařská fakulta
UT WoS
000350616400042
Klíčová slova anglicky
breast cancer; zinc treatment; tumour size; metallothionein; glutathione
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 12. 2015 15:52, Soňa Böhmová
Anotace
V originále
Breast cancer patients negative for the nuclear oestrogen receptor alpha have a particularly poor prognosis. Therefore, the 4T1 cell line (considered as a triple-negative model) was chosen to induce malignancy in mice. The aim of the present study was to assess if zinc ions, provided in excess, may significantly modify the process of mammary oncogenesis. Zn(II) ions were chosen because of their documented antitumour effects. Zn(II) is also known to induce the expression of metallothioneins (MT) and glutathion (GSH). A total dose of zinc sulphate per one gram of mouse weight used in the experiment was 0.15 mg. We studied the expression of MT1 MT2, TP53 and MTF-1genes and also examined the effect of the tumour on antioxidant capacity. Tumour-free mice had significantly higher expression levels of the studied genes (P<0.003). Significant differences were also revealed in the gene expression between the tissues (P<0.001). The highest expression levels were observed in the liver. As compared to brain, lung and liver, significantly lower concentrations of MT protein were found in the primary tumour; an inverse trend was observed in the concentration of Zinc(II). In non-tumour mice, the amount of hepatic hydrosulphuryl groups significantly increased by the exposure to Zn(II), but the animals with tumour induction showed no similar trend. The primary tumour size of zinc-treated animals was 20% smaller (P=0.002); however, no significant effect on metastasis progression due to the zinc treatment was discovered. In conclusion, Zn(II) itself may mute the growth of primary breast tumours especially at their early stages.
Návaznosti
MUNI/A/1003/2013, interní kód MU |
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ROZV/24/LF5/2014, interní kód MU |
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