Keyword search (4,164 papers available)

"Candida" Keyword-tagged Publications:

Title Authors PubMed ID
1 Otilonium Bromide Exhibits Potent Antifungal Effects by Blocking Ergosterol Plasma Membrane Localization and Triggering Cytotoxic Autophagy in Candida Albicans Zhen C; Wang L; Feng Y; Whiteway M; Hang S; Yu J; Lu H; Jiang Y; 38995235
BIOLOGY
2 Pitavastatin Calcium Confers Fungicidal Properties to Fluconazole by Inhibiting Ubiquinone Biosynthesis and Generating Reactive Oxygen Species Li W; Feng Y; Feng Z; Wang L; Whiteway M; Lu H; Jiang Y; 38929106
BIOLOGY
3 Antimicrobial photodynamic therapy against a dual-species cariogenic biofilm using a ruthenium-loaded resin-based dental material Leite ML; Comeau P; Aghakeshmiri S; Lange D; Rodrigues LKA; Branda N; Manso AP; 38395246
ENCS
4 A Systematic Evaluation of Curcumin Concentrations and Blue Light Parameters towards Antimicrobial Photodynamic Therapy against Cariogenic Microorganisms Comeau P; Manso A; 38140048
ENCS
5 Understanding Fluconazole Tolerance in Candida albicans: Implications for Effective Treatment of Candidiasis and Combating Invasive Fungal Infections Feng Y; Lu H; Whiteway M; Jiang Y; 37918789
BIOLOGY
6 Candida albicans exhibits heterogeneous and adaptive cytoprotective responses to anti-fungal compounds Dumeaux V; Massahi S; Bettauer V; Mottola A; Dukovny A; Khurdia SS; Costa ACBP; Omran RP; Simpson S; Xie JL; Whiteway M; Berman J; Hallett MT; 37888959
BIOLOGY
7 The Adr1 transcription factor directs regulation of the ergosterol pathway and azole resistance in Candida albicans Shrivastava M; Kouyoumdjian GS; Kirbizakis E; Ruiz D; Henry M; Vincent AT; Sellam A; Whiteway M; 37791798
BIOLOGY
8 Genome sequencing of 15 acid-tolerant yeasts Bagley JA; Pyne ME; Exley K; Kevvai K; Wang Q; Whiteway M; Martin VJJ; 37747226
BIOLOGY
9 A Small Molecule Inhibitor of Erg251 Makes Fluconazole Fungicidal by Inhibiting the Synthesis of the 14α-Methylsterols Lu H; Li W; Whiteway M; Wang H; Zhu S; Ji Z; Feng Y; Yan L; Fang T; Li L; Ni T; Zhang X; Lv Q; Ding Z; Qiu L; Zhang D; Jiang Y; 36475771
BIOLOGY
10 A Deep Learning Approach to Capture the Essence of Candida albicans Morphologies Bettauer V; Costa ACBP; Omran RP; Massahi S; Kirbizakis E; Simpson S; Dumeaux V; Law C; Whiteway M; Hallett MT; 35972285
BIOLOGY
11 Transcriptional Profiling of the Candida albicans Response to the DNA Damage Agent Methyl Methanesulfonate Feng Y; Zhang Y; Li J; Omran RP; Whiteway M; Feng J; 35886903
BIOLOGY
12 Genetic Screening of Candida albicans Inactivation Mutants Identifies New Genes Involved in Macrophage-Fungal Cell Interactions Godoy P; Darlington PJ; Whiteway M; 35450285
PERFORM
13 SAGA Complex Subunits in Candida albicans Differentially Regulate Filamentation, Invasiveness, and Biofilm Formation Rashid S; Correia-Mesquita TO; Godoy P; Omran RP; Whiteway M; 35350439
BIOLOGY
14 The zinc cluster transcription factor Rha1 is a positive filamentation regulator in Candida albicans Omran RP; Ramírez-Zavala B; Aji Tebung W; Yao S; Feng J; Law C; Dumeaux V; Morschhäuser J; Whiteway M; 34849863
PERFORM
15 Calcium-calcineurin signaling pathway in Candida albicans: A potential drug target Li W; Shrivastava M; Lu H; Jiang Y; 33989979
BIOLOGY
16 Signal-mediated localization of Candida albicans pheromone response pathway components Costa ACBP; Omran RP; Law C; Dumeaux V; Whiteway M; 33793759
PERFORM
17 Candida albicans targets that potentially synergize with fluconazole. Lu H, Shrivastava M, Whiteway M, Jiang Y 33587857
BIOLOGY
18 Loss of Arp1, a putative actin-related protein, triggers filamentous and invasive growth and impairs pathogenicity in Candida albicans. Yao S, Feng Y, Islam A, Shrivastava M, Gu H, Lu Y, Sheng J, Whiteway M, Feng J 33363697
BIOLOGY
19 Nucleotide Excision Repair Protein Rad23 Regulates Cell Virulence Independent of Rad4 in Candida albicans. Feng J, Yao S, Dong Y, Hu J, Whiteway M, Feng J 32075883
BIOLOGY
20 RNA sequencing reveals an additional Crz1-binding motif in promoters of its target genes in the human fungal pathogen Candida albicans. Xu H, Fang T, Omran RP, Whiteway M, Jiang L 31900175
BIOLOGY
21 Start-up of oxygen-limited autotrophic partial nitrification-anammox process for treatment of nitrite-free wastewater in a single-stage hybrid bioreactor. Hosseinpour B, Saborimanesh N, Yerushalmi L, Walsh D, Mulligan CN 31378146
CSFG
22 The Genomic Landscape of the Fungus-Specific SWI/SNF Complex Subunit, Snf6, in Candida albicans. Tebbji F, Chen Y, Sellam A, Whiteway M 29152582
BIOLOGY
23 Chemogenomic Profiling of the Fungal Pathogen Candida albicans. Chen Y, Mallick J, Maqnas A, Sun Y, Choudhury BI, Côte P, Yan L, Ni TJ, Li Y, Zhang D, Rodríguez-Ortiz R, Lv QZ, Jiang YY, Whiteway M 29203491
BIOLOGY
24 MAP Kinase Regulation of the Candida albicans Pheromone Pathway. Rastghalam G, Omran RP, Alizadeh M, Fulton D, Mallick J, Whiteway M 30787119
BIOLOGY
25 The evolutionary rewiring of the ribosomal protein transcription pathway modifies the interaction of transcription factor heteromer Ifh1-Fhl1 (interacts with forkhead 1-forkhead-like 1) with the DNA-binding specificity element. Mallick J, Whiteway M 23625919
BIOLOGY
26 Mms21: A Putative SUMO E3 Ligase in Candida albicans That Negatively Regulates Invasiveness and Filamentation, and Is Required for the Genotoxic and Cellular Stress Response. Islam A, Tebbji F, Mallick J, Regan H, Dumeaux V, Omran RP, Whiteway M 30530734
PERFORM

 

Title:A Deep Learning Approach to Capture the Essence of Candida albicans Morphologies
Authors:Bettauer VCosta ACBPOmran RPMassahi SKirbizakis ESimpson SDumeaux VLaw CWhiteway MHallett MT
Link:pubmed.ncbi.nlm.nih.gov/35972285/
DOI:10.1128/spectrum.01472-22
Publication:Microbiology spectrum
Keywords:Candida albicansdeep learningfully convolutional one-stage object detectiongenerative adversarial networkmicroscopymorphology
PMID:35972285 Category: Date Added:2022-08-16
Dept Affiliation: BIOLOGY
1 Department of Computer Science and Software Engineering, Concordia Universitygrid.410319.e, Montreal, Quebec, Canada.
2 Department of Biology, Concordia Universitygrid.410319.e, Montreal, Quebec, Canada.
3 Department of Anatomy and Cell Biology, Western University, London, Ontario, Canada.
4 Centre for Microscopy and Cellular Imaging, Concordia Universitygrid.410319.e, Montreal, Quebec, Canada.
5 Department of Biochemistry, Western University, London, Ontario, Canada.

Description:

We present deep learning-based approaches for exploring the complex array of morphologies exhibited by the opportunistic human pathogen Candida albicans. Our system, entitled Candescence, automatically detects C. albicans cells from differential image contrast microscopy and labels each detected cell with one of nine morphologies. This ranges from yeast white and opaque forms to hyphal and pseudohyphal filamentous morphologies. The software is based upon a fully convolutional one-stage (FCOS) object detector, a deep learning technique that uses an extensive set of images that we manually annotated with the location and morphology of each cell. We developed a novel cumulative curriculum-based learning strategy that stratifies our images by difficulty from simple yeast forms to complex filamentous architectures. Candescence achieves very good performance (~85% recall; 81% precision) on this difficult learning set, where some images contain hundreds of cells with substantial intermixing between the predicted classes. To capture the essence of each C. albicans morphology and how they intermix, we used a second technique from deep learning entitled generative adversarial networks. The resultant models allow us to identify and explore technical variables, developmental trajectories, and morphological switches. Importantly, the model allows us to quantitatively capture morphological plasticity observed with genetically modified strains or strains grown in different media and environments. We envision Candescence as a community meeting point for quantitative explorations of C. albicans morphology. IMPORTANCE The fungus Candida albicans can "shape shift" between 12 morphologies in response to environmental variables. The cytoprotective capacity provided by this polymorphism makes C. albicans a formidable pathogen to treat clinically. Microscopy images of C. albicans colonies can contain hundreds of cells in different morphological states. Manual annotation of images can be difficult, especially as a result of densely packed and filamentous colonies and of technical artifacts from the microscopy itself. Manual annotation is inherently subjective, depending on the experience and opinion of annotators. Here, we built a deep learning approach entitled Candescence to parse images in an automated, quantitative, and objective fashion: each cell in an image is located and labeled with its morphology. Candescence effectively replaces simple rules based on visual phenotypes (size, shape, and shading) with neural circuitry capable of capturing subtle but salient features in images that may be too complex for human annotators.




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