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Combatting fungal infections through the discovery and elucidation of novel anti‐virulence strategies

2021· article· en· W3171258104 on OpenAlexafffund
Jennifer Geddes‐McAlister, Brianna Ball, Elizabeth Woroszchuk, Morgan G. I. Langille, Duncan Carruthers‐Lay

Bibliographic record

VenueThe FASEB Journal · 2021
Typearticle
Languageen
FieldMedicine
TopicFungal Infections and Studies
Canadian institutionsUniversity of Guelph
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsVirulenceBiologyCryptococcus neoformansPathogenProteomeMicrobiologyInteractomeProteomicsImmune systemFungal proteinYeastImmunologyGeneticsSaccharomyces cerevisiaeGene

Abstract

fetched live from OpenAlex

Fungal pathogens are critically important threats to global health with over 300 million people affected by serious fungal diseases worldwide. Fungal pathogens have evolved sophisticated strategies, including the secretion of virulence factors to interfere with host cell functions and to perturb immune responses. Our ‘infectome’ analysis identifies previously undescribed proteins involved in fungal virulence and host immune response, representing an opportunity to elucidate molecular mechanisms of host‐pathogen interplay during disease. Using state‐of‐the‐art mass spectrometry‐based proteomics we profile the total proteome and secretome of Cryptococcus neoformans wild‐type (H99) under in vitro growth conditions. We also define the infectome of C. neoformans and BALB/c macrophages in single runs using high resolution mass spectrometry on a Quadrupole Orbitrap instrument. The in vitro and infectome datasets were integrated using Perseus and candidate fungal proteins of interest were prioritized based on predicted secretory roles, novelty, and abundance profiles. Deletion strains were constructed by double‐joint PCR and characterized by phenotypic screening and cell death assays. Virulence‐associated candidates will be evaluated in a murine infection model and further characterized by immunofluorescence and interactome analyses. Our preliminary results identify interactions between the host and pathogen critical for disease. Comprehensive profiling of infection from both host and pathogen perspectives unveils new anti‐virulence strategies to combat fungal infection.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.037
GPT teacher head0.303
Teacher spread0.266 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2021
Admission routes2
Has abstractyes

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