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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Candida tropicalis affects the virulence profile of Candida albicans: an in vitro and in vivo study

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Author(s):
de Barros, Patricia Pimentel [1] ; Rossoni, Rodnei Dennis [1] ; Freire, Fernanda [1] ; Ribeiro, Felipe de Camargo [1] ; das Chagas Lopes, Lucas Alexandre [1] ; Junqueira, Juliana Campos [1] ; Cardoso Jorge, Antonio Olavo [1]
Total Authors: 7
Affiliation:
[1] UNESP Univ Estadual Paulista, Inst Sci & Technol, Dept Biosci & Oral Diag, Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: PATHOGENS AND DISEASE; v. 76, n. 2 MAR 2018.
Web of Science Citations: 5
Abstract

Candida albicans and Candida tropicalis are commensal microorganisms occurring in the oral cavity of approximately 50%-70% of healthy individuals. However, these microbes can become pathogenic through changes in the environment or weakened host immune system. Thus, the aim of this investigation was to evaluate the interaction between species of the genus Candida in the biofilm formation, filamentation, gene expression and virulence in Galleria mellonella. Coincubation of C. albicans with C. tropicalis cells after 48 h resulted in significant reduction of biofilm formation by decreasing viable cell counts, metabolic activity and hyphal growth. The C. albicans genes (BCR1, CPH1, EFG1, UME6, HWP1, ALS3, SAP5 and PLB2) were quantified by quantitative real-time polymerase chain reaction and most of genes were downregulated. Regarding in vivo assay, the groups that the larvae received C. albicans and C. tropicalis had a significant survival increase compared to the control group of C. albicans (P = 0.0001) in agreement with the in vitro results. In conclusion, C. tropicalis colonization was associated with a decrease in the growth of C. albicans, suggesting an antagonistic relation between these two species. Therefore, C. tropicalis by reducing C. albicans virulence profile may limit the ability of this pathogenic fungus to cause infection. (AU)

FAPESP's process: 15/09770-9 - Isolation and characterization of Lactobacillus spp. from oral cavity and its probiotic action in Candida albicans and Streptococcus mutans
Grantee:Juliana Campos Junqueira
Support type: Regular Research Grants
FAPESP's process: 12/15250-0 - EVALUATION OF TEMPORAL EXPRESSION OF GENES SAP5, SAP9, PLB1, PLB2, LIP9 LIP10 IN INTERACTIONS BETWEEN SPECIES C. albicans, C. tropicalis, C. glabrata and C. krusei.
Grantee:Patricia Pimentel de Barros
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/25181-8 - Isolation and characterization of Lactobacillus spp. from oral cavity and their probiotic action in Candida albicans: biofilm formation, infection in invertebrate models and EFG1, HWP1 and ALS1 gene expression
Grantee:Rodnei Dennis Rossoni
Support type: Scholarships in Brazil - Doctorate