J 2022

Classification of clinical Cutibacterium acnes isolates at phylotype level by capillary electrophoretic methods in roughened fused silica capillary

HORKA, Marie, Filip RŮŽIČKA, Pavel KARASEK, Jiri SALPLACHTA, Alena SIVÁKOVÁ et. al.

Basic information

Original name

Classification of clinical Cutibacterium acnes isolates at phylotype level by capillary electrophoretic methods in roughened fused silica capillary

Authors

HORKA, Marie (203 Czech Republic), Filip RŮŽIČKA (203 Czech Republic, belonging to the institution), Pavel KARASEK (203 Czech Republic), Jiri SALPLACHTA (203 Czech Republic, guarantor), Alena SIVÁKOVÁ (203 Czech Republic, belonging to the institution) and Michal ROTH (203 Czech Republic)

Edition

Talanta, AMSTERDAM, Elsevier, 2022, 0039-9140

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10606 Microbiology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.100

RIV identification code

RIV/00216224:14110/22:00128305

Organization unit

Faculty of Medicine

UT WoS

000812141900002

Keywords in English

Capillary electrophoresis; Classification; Cutibacterium acnes; Fused silica capillary; Phylotype; Supercritical water

Tags

Tags

International impact, Reviewed
Změněno: 27/1/2023 08:44, Mgr. Tereza Miškechová

Abstract

V originále

Despite being commensal bacterium involved in the maintenance of healthy skin, Cutibacterium acnes is also associated with inflammatory diseases. Since inflammatory and immunogenic properties vary between C. acnes phylotypes, reliable classification of clinical C. acnes isolates is important for determining their pathogenicity. Combination of optimized separation methods, polymer-enhanced transient isotachophoresis and sweeping of the charged bacterial cells in micellar electrokinetic chromatography in the roughened fused silica capillary, was used for the separation of twenty clinical C. acnes isolates. Their correct classification into the individual phylotypes was achieved in 20 min at laboratory temperature. In addition, decrease in the separation temperature to 15 degrees C led to the separation of the individual isolates of some phylotypes. Relative standard deviations of migration times of both intra- and inter-day analyses did not exceed 1.7%. Linearity of the proposed method in the concentration range from 5 x 10(5) to 1 x 10(7) cells mL(-1) was characterized by the coefficient of determination R-2 = 0.9985. Limit of detection of 5 x 10(5) cells mL(-1) (50 cells in 100 nL of the injected sample) was determined for all the examined bacteria.