J 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

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.