2014
KRAS NF-kappa B is involved in the development of zinc resistance and reduced curability in prostate cancer
HOLUBOVÁ, Monika, Martina AXMANOVÁ, Jaromír GUMULEC, Martina RAUDENSKÁ, Markéta SZTALMACHOVÁ et. al.Základní údaje
Originální název
KRAS NF-kappa B is involved in the development of zinc resistance and reduced curability in prostate cancer
Autoři
HOLUBOVÁ, Monika (203 Česká republika, domácí), Martina AXMANOVÁ (203 Česká republika, domácí), Jaromír GUMULEC (203 Česká republika, domácí), Martina RAUDENSKÁ (203 Česká republika, domácí), Markéta SZTALMACHOVÁ (203 Česká republika, domácí), Petr BABULA (203 Česká republika), Vojtěch ADAM (203 Česká republika), René KIZEK (203 Česká republika) a Michal MASAŘÍK (203 Česká republika, garant, domácí)
Vydání
Metallomics, Cambridge, Royal Society of Chemistry, 2014, 1756-5901
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.585
Kód RIV
RIV/00216224:14110/14:00076568
Organizační jednotka
Lékařská fakulta
UT WoS
000338638000009
Klíčová slova anglicky
CITRATE METABOLISM; EPITHELIAL-CELLS; CARCINOMA-CELLS; DNA-DAMAGE; T-ANTIGEN; EXPRESSION; METALLOTHIONEIN; TRANSPORTER; APOPTOSIS; GENES
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 11. 2014 14:24, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
Zinc(II) ions are important components of many proteins and are involved in numerous cellular processes such as apoptosis or drug resistance. Prostate cancer has a unique relationship with zinc(II) ions. However, the relationship was examined only in short-term zinc(II) treatments. Therefore, the aim of this study was to create zinc-resistant prostatic cell lines at various stages of the disease (22Rv1 and PC-3) and a normal prostate epithelium (PNT1A) using a long-term zinc exposure. Consequently, the expression profile of the following genes was analyzed: BAX, Bcl-2, Beclin-1, CFLAR, HIF1 alpha, KRAS, mTOR, MT1A, MT2A, NF-kappa B1, p53, survivin, ZIP1, ZnT-1. The resistance was verified using the MTT test; on average a 1.35-fold lower zinc(II) toxicity (higher IC50) was determined in zinc(II)-resistant cells. The associated resistance to cisplatin was also determined; IC50 for cisplatin was 1.52-fold higher. With regard to the gene expression profiles, our results indicate that differential mechanisms participate in the short-term zinc toxicity regulation and long-term resistance; the short-term treatment was associated with MT2A (p < 0.001), ZnT-1 (p < 0.001), and MT1A (p < 0.03) and the long-term resistance was associated particularly with NF-kappa B1 (p < 0.001), CFLAR (p < 0.001), KRAS (p < 0.001), p53 (p < 0.002), survivin (p = 0.02), ZIP1 (p = 0.002), BAX (p = 0.005), and HIF1 alpha (p = 0.05). Therefore, the KRAS-PI3K-NF-kappa B pathway is expected to play a crucial role in the regulation of zinc resistance. In summary, compared to previous studies, identical mechanisms of resistance were demonstrated on multiple cell lines, both non-tumor and tumorous, derived both from primary and advanced secondary sites.
Návaznosti
MUNI/A/1003/2013, interní kód MU |
|