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Shikonin Inhibits Candida albicans Biofilms via the Ras1-cAMP-Efg1 Signalling Pathway.
- Source :
- International Journal of General Medicine; Jun2023, Vol. 16, p2653-2662, 10p
- Publication Year :
- 2023
-
Abstract
- Objective: To investigate the influence of shikonin (SK) on the formation of Candida albicans biofilms and discuss the possible mechanism. Methods: The inhibition of the formation of C. albicans biofilms by SK was observed by scanning electron microscopy. A silicone film method and a water–hydrocarbon two-phase assay were performed to investigate the effects of SK on cell adhesion. Real-time reverse-transcription polymerase chain reaction was used to analyse the expression of genes related to cell adhesion and Ras1–cyclic adenosine monophosphate (cAMP) – enhanced filamentous growth protein 1 (Efg1) signalling pathway. Finally, the level of cAMP in C. albicans was detected and exogenous cAMP rescue experiment was conducted. Results: The results showed that SK could destroy the typical three-dimensional structure of the biofilms, inhibit cell surface hydrophobicity and cell adhesion, downregulate the expression of Ras1-cAMP-Efg1 signalling pathway-related genes (ECE1, HWP1, ALS3, RAS1, CYR1, EFG1 and TEC1) and effectively reduce the production of key messenger cAMP in the Ras1-cAMP-Efg1 pathway. Meanwhile, exogenous cAMP reversed the inhibitory effect of SK on biofilms formation. Conclusion: Our results suggest that SK exhibits potential anti-C. albicans biofilms effects related to the inhibition of Ras1-cAMP-Efg1 pathway. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11787074
- Volume :
- 16
- Database :
- Complementary Index
- Journal :
- International Journal of General Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 164726546
- Full Text :
- https://doi.org/10.2147/IJGM.S417327