2015
Study of Linkage between Glutathione Pathway and the Antibiotic Resistance of Escherichia coli from Patients' Swabs
KOMINKOVA, Marketa; Petr MICHALEK; Kristyna CIHALOVA; Roman GURAN; Natalia Vladimirovna CERNEI et al.Základní údaje
Originální název
Study of Linkage between Glutathione Pathway and the Antibiotic Resistance of Escherichia coli from Patients' Swabs
Autoři
KOMINKOVA, Marketa; Petr MICHALEK; Kristyna CIHALOVA; Roman GURAN; Natalia Vladimirovna CERNEI; Lukáš NEJDL; Kristyna SMERKOVA; Simona DOSTALOVA; Dagmar CHUDOBOVA; Zbynek HEGER; Radek VESELÝ; Jaromír GUMULEC; Jindrich KYNICKY; Kledi XHAXHIU; Ondrej ZITKA; Vojtěch ADAM a Rene KIZEK
Vydání
International Journal of Molecular Sciences, Basel, MDPI AG, 2015, 1422-0067
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Španělsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/15:00082633
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
buthionine sulfoximine; Escherichia coli; glutathione; infections; swabs
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 3. 8. 2015 09:43, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
In this work, we focused on the differences between bacterial cultures of E. coli obtained from swabs of infectious wounds of patients compared to laboratory E. coli. In addition, blocking of the protein responsible for the synthesis of glutathione (gamma-glutamylcysteine synthase—GCL) using 10 mM buthionine sulfoximine was investigated. Each E. coli showed significant differences in resistance to antibiotics. According to the determined resistance, E. coli were divided into experimental groups based on a statistical evaluation of their properties as more resistant and more sensitive. These groups were also used for finding the differences in a dependence of the glutathione pathway on resistance to antibiotics. More sensitive E. coli showed the same kinetics of glutathione synthesis while blocking GCL (Km 0.1 µM), as compared to non-blocking. In addition, the most frequent mutations in genes of glutathione synthetase, glutathione peroxidase and glutathione reductase were observed in this group compared to laboratory E.coli. The group of “more resistant” E. coli exhibited differences in Km between 0.3 and 0.8 µM. The number of mutations compared to the laboratory E. coli was substantially lower compared to the other group.