D 2008

Molecular typing of the enterotoxin H-positive Staphylococcus aureus strains isolated from patients and foods in the Czech Republic

RŮŽIČKOVÁ, Vladislava, Pavla HOLOCHOVÁ, Renata KARPÍŠKOVÁ, Roman PANTŮČEK, Markéta POSPÍŠILOVÁ et. al.

Basic information

Original name

Molecular typing of the enterotoxin H-positive Staphylococcus aureus strains isolated from patients and foods in the Czech Republic

Name in Czech

Molekulární typizace enterotoxin H-pozitivních kmenů Staphylococcus aureus izolovaných z pacientů a potravin v České republice

Authors

RŮŽIČKOVÁ, Vladislava (203 Czech Republic, guarantor), Pavla HOLOCHOVÁ (203 Czech Republic), Renata KARPÍŠKOVÁ (203 Czech Republic), Roman PANTŮČEK (203 Czech Republic), Markéta POSPÍŠILOVÁ (203 Czech Republic) and Jiří DOŠKAŘ (203 Czech Republic)

Edition

Abstract book. Würzburg, Germany, Pathophysiology of Staphylococci, p. 77-77, 2008

Publisher

Transregional Collaborative Research Center 34

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

Genetics and molecular biology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/08:00026647

Organization unit

Faculty of Science

Keywords in English

Staphylococcus aureus; enterotoxin H; staphylococcal food poisoning; molecular diagnostics

Tags

International impact
Změněno: 31/10/2008 14:52, prof. RNDr. Roman Pantůček, Ph.D.

Abstract

V originále

Staphylococcal enterotoxin H (SEH) is a member of the extracellular mature toxin family, secreted by variety of Staphylococcus aureus strains that were responsible for human disease called Staphylococcal Food Poisoning (SFP). Thirty-two SEH-positive Staphylococcus aureus strains isolated from burned patients and food samples collected in eleven districts of the Czech Republic between 2000 and 2005 were genotypically characterized by detection of the genes for the enterotoxins SEA - SEJ, spa gene polymorphism analysis, pulsed-field gel electrophoresis (PFGE) profiling and ERIC-PCR fingerprinting and prophage carriage. One strain, detected in feta cheese, was implicated in a case of enterotoxinosis. Sixteen of the twenty-eight isolates carried the seh gene alone. The remaining twelve food-derived isolates harbored the seh gene in combination with other enterotoxin genes, most often the seg and sei genes, followed by the sea, seb, sec and sed genes. Four MRSA strains carried the seh and sec and differed from food-derived strains in PFGE, ERIC2-PCR and prophage profiles. Comparison of genomic profiles resulted in the determination of twenty one genotypes designated from G-1 to G-21. Two new, to date not defined, spa types were identified in one strain isolated from raw meat and two strains obtained from prepacked pizza. Our results show that the seh-positive S. aureus isolates from patients and foodstuffs did not originate from a single source or a common ancestor.

In Czech

Staphylococcal enterotoxin H (SEH) is a member of the extracellular mature toxin family, secreted by variety of Staphylococcus aureus strains that were responsible for human disease called Staphylococcal Food Poisoning (SFP). Thirty-two SEH-positive Staphylococcus aureus strains isolated from burned patients and food samples collected in eleven districts of the Czech Republic between 2000 and 2005 were genotypically characterized by detection of the genes for the enterotoxins SEA - SEJ, spa gene polymorphism analysis, pulsed-field gel electrophoresis (PFGE) profiling and ERIC-PCR fingerprinting and prophage carriage. One strain, detected in feta cheese, was implicated in a case of enterotoxinosis. Sixteen of the twenty-eight isolates carried the seh gene alone. The remaining twelve food-derived isolates harbored the seh gene in combination with other enterotoxin genes, most often the seg and sei genes, followed by the sea, seb, sec and sed genes. Four MRSA strains carried the seh and sec and differed from food-derived strains in PFGE, ERIC2-PCR and prophage profiles. Comparison of genomic profiles resulted in the determination of twenty one genotypes designated from G-1 to G-21. Two new, to date not defined, spa types were identified in one strain isolated from raw meat and two strains obtained from prepacked pizza. Our results show that the seh-positive S. aureus isolates from patients and foodstuffs did not originate from a single source or a common ancestor.

Links

MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations