Keyword search (4,163 papers available)

"Microscopy" Keyword-tagged Publications:

Title Authors PubMed ID
1 Deformable detection transformers for domain adaptable ultrasound localization microscopy with robustness to point spread function variations Gharamaleki SK; Helfield B; Rivaz H; 40640235
PHYSICS
2 Measuring prion propagation in single bacteria elucidates a mechanism of loss Jager K; Orozco-Hidalgo MT; Springstein BL; Joly-Smith E; Papazotos F; McDonough E; Fleming E; McCallum G; Yuan AH; Hilfinger A; Hochschild A; Potvin-Trottier L; 37738299
PHYSICS
3 Impact of Pollutant Ozone on the Biophysical Properties of Tear Film Lipid Layer Model Membranes Keramatnejad M; DeWolf C; 36837668
CHEMBIOCHEM
4 A biophysical study of tear film lipid layer model membranes Keramatnejad M; DeWolf C; 36535341
CNSR
5 Cytokinetic diversity in mammalian cells is revealed by the characterization of endogenous anillin, Ect2 and RhoA Husser MC; Ozugergin I; Resta T; Martin VJJ; Piekny AJ; 36416720
BIOLOGY
6 Microfluidics for long-term single-cell time-lapse microscopy: Advances and applications Allard P; Papazotos F; Potvin-Trottier L; 36312536
BIOLOGY
7 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
8 Gold Nano-Bio-Interaction to Modulate Mechanobiological Responses for Cancer Therapy Applications Sohrabi Kashani A; Larocque K; Piekny A; Packirisamy M; 35839330
BIOLOGY
9 The MyLo CRISPR-Cas9 Toolkit: A Markerless Yeast Localization and Overexpression CRISPR-Cas9 Toolkit Bean BDM; Whiteway M; Martin VJJ; 35708612
BIOLOGY
10 Estrogen receptors observed at extranuclear neuronal sites and in glia in the nucleus accumbens core and shell of the female rat: Evidence for localization to catecholaminergic and GABAergic neurons Almey A; Milner TA; Brake WG; 35397175
CSBN
11 Comparing microscopy and DNA metabarcoding techniques for identifying cyanobacteria assemblages across hundreds of lakes MacKeigan PW; Garner RE; Monchamp MÈ; Walsh DA; Onana VE; Kraemer SA; Pick FR; Beisner BE; Agbeti MD; da Costa NB; Shapiro BJ; Gregory-Eaves I; 35287928
BIOLOGY
12 A comparative analysis of deep learning architectures on high variation malaria parasite classification dataset. Rahman A, Zunair H, Reme TR, Rahman MS, Mahdy MRC 33465520
ENCS
13 Estrogen receptor α and G-protein coupled estrogen receptor 1 are localized to GABAergic neurons in the dorsal striatum. Almey A, Milner TA, Brake WG 27080432
PSYCHOLOGY
14 Visualization of SNARE-Mediated Organelle Membrane Hemifusion by Electron Microscopy. Mattie S, Kazmirchuk T, Mui J, Vali H, Brett CL 30317518
BIOLOGY
15 Comparative morphology and phagocytic capacity of primary human adult microglia with time-lapse imaging. Levtova N, Healy LM, Gonczi CMC, Stopnicki B, Blain M, Kennedy TE, Moore CS, Antel JP, Darlington PJ 28606377
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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