2012
Monitoring of the prostate tumour cells redox state and real-time proliferation by novel biophysical techniques and fluorescent staining
MASAŘÍK, Michal, Jaromír GUMULEC, Marián HLAVNA, Markéta SZTALMACHOVÁ, Petr BABULA et. al.Základní údaje
Originální název
Monitoring of the prostate tumour cells redox state and real-time proliferation by novel biophysical techniques and fluorescent staining
Autoři
MASAŘÍK, Michal (203 Česká republika, garant, domácí), Jaromír GUMULEC (203 Česká republika, domácí), Marián HLAVNA (703 Slovensko, domácí), Markéta SZTALMACHOVÁ (203 Česká republika, domácí), Petr BABULA (203 Česká republika), Martina RAUDENSKÁ (203 Česká republika, domácí), Monika PÁVKOVÁ GOLDBERGOVÁ (203 Česká republika, domácí), Natalia Vladimirovna CERNEI (498 Moldavsko), Jiří SOCHOR (203 Česká republika), Ondřej ZÍTKA (203 Česká republika), Branislav RUTTKAY-NEDECKÝ (203 Česká republika), Soňa KŘÍŽKOVÁ (203 Česká republika), Vojtěch ADAM (203 Česká republika) a René KIZEK (203 Česká republika)
Vydání
Integrative Biology, 2012, 1757-9694
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30000 3. Medical and Health Sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.321
Kód RIV
RIV/00216224:14110/12:00057446
Organizační jednotka
Lékařská fakulta
UT WoS
000304487300010
Klíčová slova anglicky
OXIDATIVE STRESS; CANCER CELLS; LIQUID-CHROMATOGRAPHY; CARCINOMA-CELLS; ACRIDINE-ORANGE; ZINC; METALLOTHIONEIN; DIFFERENTIATION; TRANSPORTER; GLUTATHIONE
Příznaky
Mezinárodní význam
Změněno: 25. 3. 2013 14:56, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
The present paper is focused on zinc(II) treatment effects on prostatic cell lines PC-3 (tumour) and PNT1A (non-tumour). Oxidative status of cells was monitored by evaluation of expression of metallothionein (MT) isoforms 1A and 2A at the mRNA and protein level, glutathione (oxidised and reduced), and intracellular zinc(II) after exposition to zinc(II) treatment at concentrations of 0–150 mM using electrochemical methods, western blotting and fluorescent microscopy. A novel real-time impedance-based growth monitoring system was compared with widely used end-point MTT assay. Impedance-based IC50 for zinc(II) is 55.5 and 150.8 mM for PC-3 and PNT1A, respectively. MTTdetermined IC50 are >1.3-fold higher. Impedance-based viability correlates with viable count (r > 0.92; p o 0.03), not with MTT. Two-fold lower intracellular zinc(II) in the tumour PC-3 cell line was found. After zinc(II) treatment >2.6-fold increase of intracellular zinc(II) was observed in non-tumour PNT1A and in tumour PC-3 cells. In PC-3 cells, free and bound zinc(II) levels were enhanced more markedly as compared to PNT1A. PNT1A produced 4.2-fold less MT compared to PC3. PNT1A cells showed a 4.8-fold increase trend (r = 0.94; p = 0.005); PC-3 did show a significant trend at MT1 and MT2 protein levels (r = 0.93; p = 0.02) with nearly ten-fold increase after 100 mM zinc(II) treatment. In terms of redox state, PNT1A had a predominance of reduced GSH forms (GSH : GSSG ratio > 1), when exposed to zinc(II) compared to PC3, where predominance of oxidised forms remains at all concentrations. IC50 differs significantly when determined by MTT and real-time impedance-based assays due to dependence of impedance on cell morphology and adhesion. When real-time growth monitoring, precise electrochemical methods and fluorescent microscopy are performed together, accurate information for metal fluxes, their buffering by thiol compounds and monitoring of the redox state become a powerful tool for understanding the role of oxidative stress in carcinogenesis.
Návaznosti
GP301/09/P436, projekt VaV |
| ||
MUNI/A/0839/2011, interní kód MU |
|