Journal
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
Volume 11, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fcimb.2021.680732
Keywords
biofilm; Candida albicans; Caenorhabditis elegans; Pseudomonas aeruginosa; SET3
Categories
Funding
- National Research foundation of South Africa [118543, 115566, 121998]
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The interaction between Candida albicans and Pseudomonas aeruginosa affects early biofilm formation and virulence of C. albicans in an infection model. Deletion of SET3 does not affect C. albicans morphology in the presence of P. aeruginosa, but it reduces virulence in a Caenorhabditis elegans infection model.
The yeast Candida albicans exhibits multiple morphologies dependent on environmental cues. Candida albicans biofilms are frequently polymicrobial, enabling interspecies interaction through proximity and contact. The interaction between C. albicans and the bacterium, Pseudomonas aeruginosa, is antagonistic in vitro, with P. aeruginosa repressing the yeast-to-hyphal switch in C. albicans. Previous transcriptional analysis of C. albicans in polymicrobial biofilms with P. aeruginosa revealed upregulation of genes involved in regulation of morphology and biofilm formation, including SET3, a component of the Set3/Hos2 histone deacetylase complex (Set3C). This prompted the question regarding the involvement of SET3 in the interaction between C. albicans and P. aeruginosa, both in vitro and in vivo. We found that SET3 may influence early biofilm formation by C. albicans and the interaction between C. albicans and P. aeruginosa. In addition, although deletion of SET3 did not alter the morphology of C. albicans in the presence of P. aeruginosa, it did cause a reduction in virulence in a Caenorhabditis elegans infection model, even in the presence of P. aeruginosa.
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