Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina
- Autores
- Soldavini Pelichotti, Paola Cecilia; Cejas, Daniela; Fernández Caniggia, Liliana; Trejo, Fernando Miguel; Pérez, Pablo Fernando
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Clostridioides difficile is an opportunistic spore-forming pathogen responsible for antibiotic-associated diarrhea in humans. C. difficile produces two main toxins: TcdA and TcdB as well as a third toxin named binary toxin (CDT) that is also involved in virulence. The present study aimed at characterizing the C. difficile isolate ALCD3 involved in a relapse episode of nosocomial infection. Molecular characterization showed that isolate ALCD3 belongs to toxinotype 0/v and the MLST analysis demonstrated allelic profile adk:91, atpA:1, dxr:2, glyA: 1, recA:27, sodA: 1 and tpi:1 which corresponds to ST293 (MLST clade: 1). During growth, isolate ALCD3 showed an early increase in the sporulation ratio as well as maximal values of heat resistant forms after 2 days of incubation. Both sporulation kinetics and production of heat resistant forms were faster for isolate ALCD3 than for the reference strain VPI 10463. Germination in the presence of the natural germinant taurocholate was faster for isolate ALCD3 than for strain VPI 10463, which indicates that isolate ALCD3 starts cortex hydrolysis earlier than strain VPI 10463. Furthermore, the co-germinant glycine, induces rapid release of dipicolinic acid (DPA) in isolate ALCD3. These findings indicate that isolate ALCD3 is particularly efficient in both sporulation and germination. The present work represents the first report of the circulation of C. difficile ST293 in Argentina. The ability of isolate ALCD3 to produce toxins and its high sporulation/germination capacity are key features compatible with a microorganism with high dissemination potential and the possibility of inducing recurrent infections.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos - Materia
-
Biología
Clostridioides difficile
Pathogenesis
Sporulation
Germination
Recurrence
MLST - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/159853
Ver los metadatos del registro completo
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Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in ArgentinaSoldavini Pelichotti, Paola CeciliaCejas, DanielaFernández Caniggia, LilianaTrejo, Fernando MiguelPérez, Pablo FernandoBiologíaClostridioides difficilePathogenesisSporulationGerminationRecurrenceMLSTClostridioides difficile is an opportunistic spore-forming pathogen responsible for antibiotic-associated diarrhea in humans. C. difficile produces two main toxins: TcdA and TcdB as well as a third toxin named binary toxin (CDT) that is also involved in virulence. The present study aimed at characterizing the C. difficile isolate ALCD3 involved in a relapse episode of nosocomial infection. Molecular characterization showed that isolate ALCD3 belongs to toxinotype 0/v and the MLST analysis demonstrated allelic profile adk:91, atpA:1, dxr:2, glyA: 1, recA:27, sodA: 1 and tpi:1 which corresponds to ST293 (MLST clade: 1). During growth, isolate ALCD3 showed an early increase in the sporulation ratio as well as maximal values of heat resistant forms after 2 days of incubation. Both sporulation kinetics and production of heat resistant forms were faster for isolate ALCD3 than for the reference strain VPI 10463. Germination in the presence of the natural germinant taurocholate was faster for isolate ALCD3 than for strain VPI 10463, which indicates that isolate ALCD3 starts cortex hydrolysis earlier than strain VPI 10463. Furthermore, the co-germinant glycine, induces rapid release of dipicolinic acid (DPA) in isolate ALCD3. These findings indicate that isolate ALCD3 is particularly efficient in both sporulation and germination. The present work represents the first report of the circulation of C. difficile ST293 in Argentina. The ability of isolate ALCD3 to produce toxins and its high sporulation/germination capacity are key features compatible with a microorganism with high dissemination potential and the possibility of inducing recurrent infections.Centro de Investigación y Desarrollo en Criotecnología de Alimentos2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf150-159http://sedici.unlp.edu.ar/handle/10915/159853enginfo:eu-repo/semantics/altIdentifier/issn/1851-7617info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ram.2022.09.004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:41:47Zoai:sedici.unlp.edu.ar:10915/159853Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:41:47.738SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
title |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
spellingShingle |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina Soldavini Pelichotti, Paola Cecilia Biología Clostridioides difficile Pathogenesis Sporulation Germination Recurrence MLST |
title_short |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
title_full |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
title_fullStr |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
title_full_unstemmed |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
title_sort |
Characterization of a Clostridioides difficile ST-293 isolate from a recurrent infection in Argentina |
dc.creator.none.fl_str_mv |
Soldavini Pelichotti, Paola Cecilia Cejas, Daniela Fernández Caniggia, Liliana Trejo, Fernando Miguel Pérez, Pablo Fernando |
author |
Soldavini Pelichotti, Paola Cecilia |
author_facet |
Soldavini Pelichotti, Paola Cecilia Cejas, Daniela Fernández Caniggia, Liliana Trejo, Fernando Miguel Pérez, Pablo Fernando |
author_role |
author |
author2 |
Cejas, Daniela Fernández Caniggia, Liliana Trejo, Fernando Miguel Pérez, Pablo Fernando |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Biología Clostridioides difficile Pathogenesis Sporulation Germination Recurrence MLST |
topic |
Biología Clostridioides difficile Pathogenesis Sporulation Germination Recurrence MLST |
dc.description.none.fl_txt_mv |
Clostridioides difficile is an opportunistic spore-forming pathogen responsible for antibiotic-associated diarrhea in humans. C. difficile produces two main toxins: TcdA and TcdB as well as a third toxin named binary toxin (CDT) that is also involved in virulence. The present study aimed at characterizing the C. difficile isolate ALCD3 involved in a relapse episode of nosocomial infection. Molecular characterization showed that isolate ALCD3 belongs to toxinotype 0/v and the MLST analysis demonstrated allelic profile adk:91, atpA:1, dxr:2, glyA: 1, recA:27, sodA: 1 and tpi:1 which corresponds to ST293 (MLST clade: 1). During growth, isolate ALCD3 showed an early increase in the sporulation ratio as well as maximal values of heat resistant forms after 2 days of incubation. Both sporulation kinetics and production of heat resistant forms were faster for isolate ALCD3 than for the reference strain VPI 10463. Germination in the presence of the natural germinant taurocholate was faster for isolate ALCD3 than for strain VPI 10463, which indicates that isolate ALCD3 starts cortex hydrolysis earlier than strain VPI 10463. Furthermore, the co-germinant glycine, induces rapid release of dipicolinic acid (DPA) in isolate ALCD3. These findings indicate that isolate ALCD3 is particularly efficient in both sporulation and germination. The present work represents the first report of the circulation of C. difficile ST293 in Argentina. The ability of isolate ALCD3 to produce toxins and its high sporulation/germination capacity are key features compatible with a microorganism with high dissemination potential and the possibility of inducing recurrent infections. Centro de Investigación y Desarrollo en Criotecnología de Alimentos |
description |
Clostridioides difficile is an opportunistic spore-forming pathogen responsible for antibiotic-associated diarrhea in humans. C. difficile produces two main toxins: TcdA and TcdB as well as a third toxin named binary toxin (CDT) that is also involved in virulence. The present study aimed at characterizing the C. difficile isolate ALCD3 involved in a relapse episode of nosocomial infection. Molecular characterization showed that isolate ALCD3 belongs to toxinotype 0/v and the MLST analysis demonstrated allelic profile adk:91, atpA:1, dxr:2, glyA: 1, recA:27, sodA: 1 and tpi:1 which corresponds to ST293 (MLST clade: 1). During growth, isolate ALCD3 showed an early increase in the sporulation ratio as well as maximal values of heat resistant forms after 2 days of incubation. Both sporulation kinetics and production of heat resistant forms were faster for isolate ALCD3 than for the reference strain VPI 10463. Germination in the presence of the natural germinant taurocholate was faster for isolate ALCD3 than for strain VPI 10463, which indicates that isolate ALCD3 starts cortex hydrolysis earlier than strain VPI 10463. Furthermore, the co-germinant glycine, induces rapid release of dipicolinic acid (DPA) in isolate ALCD3. These findings indicate that isolate ALCD3 is particularly efficient in both sporulation and germination. The present work represents the first report of the circulation of C. difficile ST293 in Argentina. The ability of isolate ALCD3 to produce toxins and its high sporulation/germination capacity are key features compatible with a microorganism with high dissemination potential and the possibility of inducing recurrent infections. |
publishDate |
2023 |
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2023 |
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