Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium
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| Main Author: | |
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| Publication Date: | 2014 |
| Other Authors: | , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Download full: | http://hdl.handle.net/1822/31633 |
Summary: | The principal aim of this study was to investigate the in vitro co-infection of a reconstituted human vaginal epithelium (RHVE) by Candida albicans and Candida glabrata. Methods The ability of both species to invade and colonise the RHVE was examined using species-specific peptide nucleic acid (PNA) probe hybridisation, confocal laser scanning microscopy (CLSM) and a novel qRT-PCR protocol for Candida quantification in the tissues. RHVE damage was evaluated by measuring lactate dehydrogenase (LDH) activity. Candida virulence gene expression (HWP1, ALS, EPA, PLB, PLD and SAP) was evaluated by quantitative RT-PCR. Results The results showed that whilst both species induced damage to the RHVE, this was notably less with C. glabrata. Interestingly, there was a significant increase in C. glabrata RHVE colonisation and invasiveness when it was added to the tissue with C. albicans. The extent of RHVE damage caused by the two species appeared to be primarily dependent on the process of invasion. Of the virulence genes assayed, HWP1, PLD1 and ALS3 were deemed to be most associated with pathogenicity in the model. Conclusions For the first time, we have demonstrated that the RHVE model coupled with specific tools of analysis, allows assessment of Candida colonisation and invasion in single and co-infection. Using this model we have demonstrated that C. albicans enhanced C. glabrata colonisation, invasion and tissue damage, which was also evidenced by the expression of virulence genes. |
| _version_ | 1833595598371028992 |
|---|---|
| author | Alves, Carlos |
| author2 | Wei, Xiao-Qing Silva, Sónia Carina Azeredo, Joana Henriques, Mariana Williams, David |
| author2_role | author author author author author |
| author_facet | Alves, Carlos Wei, Xiao-Qing Silva, Sónia Carina Azeredo, Joana Henriques, Mariana Williams, David |
| author_role | author |
| collection | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| dc.contributor.author.fl_str_mv | Alves, Carlos Wei, Xiao-Qing Silva, Sónia Carina Azeredo, Joana Henriques, Mariana Williams, David |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.date.none.fl_str_mv | 2014 2014-01-01T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.uri.fl_str_mv | http://hdl.handle.net/1822/31633 |
| dc.language.iso.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | W. B. Saunders Co., Ltd. |
| dc.relation.none.fl_str_mv | Alves, C. T.; Wei, Xiao-Qing; Silva, Sónia Carina; Azeredo, Joana; Henriques, Mariana; Williams, David W., Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium. Journal of Infection, 69(4), 396-407, 2014 0163-4453 10.1016/j.jinf.2014.06.002 24924556 |
| dc.rights.driver.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia instacron:RCAAP |
| dc.subject.por.fl_str_mv | RHVE Candidosis Co-infection Candida albicans Candida glabrata Yeast PNA FISH Science & Technology |
| dc.title.none.fl_str_mv | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | The principal aim of this study was to investigate the in vitro co-infection of a reconstituted human vaginal epithelium (RHVE) by Candida albicans and Candida glabrata. Methods The ability of both species to invade and colonise the RHVE was examined using species-specific peptide nucleic acid (PNA) probe hybridisation, confocal laser scanning microscopy (CLSM) and a novel qRT-PCR protocol for Candida quantification in the tissues. RHVE damage was evaluated by measuring lactate dehydrogenase (LDH) activity. Candida virulence gene expression (HWP1, ALS, EPA, PLB, PLD and SAP) was evaluated by quantitative RT-PCR. Results The results showed that whilst both species induced damage to the RHVE, this was notably less with C. glabrata. Interestingly, there was a significant increase in C. glabrata RHVE colonisation and invasiveness when it was added to the tissue with C. albicans. The extent of RHVE damage caused by the two species appeared to be primarily dependent on the process of invasion. Of the virulence genes assayed, HWP1, PLD1 and ALS3 were deemed to be most associated with pathogenicity in the model. Conclusions For the first time, we have demonstrated that the RHVE model coupled with specific tools of analysis, allows assessment of Candida colonisation and invasion in single and co-infection. Using this model we have demonstrated that C. albicans enhanced C. glabrata colonisation, invasion and tissue damage, which was also evidenced by the expression of virulence genes. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | RCAP_200b6db978a5fbefdfebcd14e39d2352 |
| instacron_str | RCAAP |
| institution | RCAAP |
| instname_str | FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
| language | eng |
| network_acronym_str | RCAP |
| network_name_str | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| oai_identifier_str | oai:repositorium.sdum.uminho.pt:1822/31633 |
| publishDate | 2014 |
| publisher.none.fl_str_mv | W. B. Saunders Co., Ltd. |
| reponame_str | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| repository.mail.fl_str_mv | info@rcaap.pt |
| repository.name.fl_str_mv | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
| repository_id_str | https://opendoar.ac.uk/repository/7160 |
| spelling | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epitheliumRHVECandidosisCo-infectionCandida albicansCandida glabrataYeast PNA FISHScience & TechnologyThe principal aim of this study was to investigate the in vitro co-infection of a reconstituted human vaginal epithelium (RHVE) by Candida albicans and Candida glabrata. Methods The ability of both species to invade and colonise the RHVE was examined using species-specific peptide nucleic acid (PNA) probe hybridisation, confocal laser scanning microscopy (CLSM) and a novel qRT-PCR protocol for Candida quantification in the tissues. RHVE damage was evaluated by measuring lactate dehydrogenase (LDH) activity. Candida virulence gene expression (HWP1, ALS, EPA, PLB, PLD and SAP) was evaluated by quantitative RT-PCR. Results The results showed that whilst both species induced damage to the RHVE, this was notably less with C. glabrata. Interestingly, there was a significant increase in C. glabrata RHVE colonisation and invasiveness when it was added to the tissue with C. albicans. The extent of RHVE damage caused by the two species appeared to be primarily dependent on the process of invasion. Of the virulence genes assayed, HWP1, PLD1 and ALS3 were deemed to be most associated with pathogenicity in the model. Conclusions For the first time, we have demonstrated that the RHVE model coupled with specific tools of analysis, allows assessment of Candida colonisation and invasion in single and co-infection. Using this model we have demonstrated that C. albicans enhanced C. glabrata colonisation, invasion and tissue damage, which was also evidenced by the expression of virulence genes.We would like to thank Mrs Kath Allsopp for processing and sectioning tissue samples. This work was supported by the research grant SFRH/BD/72742/2010 from "Fundacao para a Ciencia e Tecnologia (FCT)", Portugal. This work was supported by the Programa Operacional, Fatores de competitividade - COMPETE and by national funds through FCT - Fundacao para a Ciencia e a Tecnologia on the scope of the projects FCT PTDC/EBB-EBI/120495/2010, PTDC/SAU-MIC/119069/2010, RECI/EBB-EBI/0179/2012 and PEst-OE/EQB/LA0023/2013. The authors thank the Project "Bio-Health - Biotechnology and Bioengineering approaches to improve health quality", Ref. NORTE-07-0124-FEDER-000027, co-funded by the Programa Operacional Regional do Norte (ON.2 - O Novo Norte), QREN, FEDER.W. B. Saunders Co., Ltd.Universidade do MinhoAlves, CarlosWei, Xiao-QingSilva, Sónia CarinaAzeredo, JoanaHenriques, MarianaWilliams, David20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/31633engAlves, C. T.; Wei, Xiao-Qing; Silva, Sónia Carina; Azeredo, Joana; Henriques, Mariana; Williams, David W., Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium. Journal of Infection, 69(4), 396-407, 20140163-445310.1016/j.jinf.2014.06.00224924556info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T06:25:18Zoai:repositorium.sdum.uminho.pt:1822/31633Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:52:47.380684Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| spellingShingle | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium Alves, Carlos RHVE Candidosis Co-infection Candida albicans Candida glabrata Yeast PNA FISH Science & Technology |
| status_str | publishedVersion |
| title | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| title_full | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| title_fullStr | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| title_full_unstemmed | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| title_short | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| title_sort | Candida albicans promotes invasion and colonisation of Candida glabrata in a reconstituted human vaginal epithelium |
| topic | RHVE Candidosis Co-infection Candida albicans Candida glabrata Yeast PNA FISH Science & Technology |
| url | http://hdl.handle.net/1822/31633 |