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Peripheral blood monocytes (PBMCs) display innate antiviral response to rhinovirus (RV) infected bronchial epithelial cells (133.44)

2009· article· en· W2304237677 on OpenAlexaff
Peter Wark, Hayley V. See, Jodie L. Simpson, Rebecca L. Forbes, Philip M. Hansbro

Bibliographic record

VenueThe Journal of Immunology · 2009
Typearticle
Languageen
FieldMedicine
TopicRespiratory viral infections research
Canadian institutionsInstitute of Infection and Immunity
Fundersnot available
KeywordsPeripheral blood mononuclear cellTLR3CD8RhinovirusImmunologyBiologyImmune systemInnate immune systemFlow cytometryPerforinToll-like receptorVirusIn vitro

Abstract

fetched live from OpenAlex

Abstract Rhinovirus (RV) infection is an important trigger of acute asthma and COPD. Study objectives; were to characterise the response of PBMCs and CD8 lymphocytes when exposed to RV infected bronchial epithelial cells. Methods; Human Calu3 cells were used as a model for bronchial epithelial cells and infected with RV-43 and RV-1B. PBMCs were obtained from healthy individuals and separated by Ficoll-Paque centrifugation. CD8 lymphocytes were identified as CD3+, CD8+ by flow cytometry. PBMCs were exposed to infected Calu3 cells, cells exposed to UV inactive RV, PHA and TLR3 agonist PolyI:C. Response was measured by ELISA for release of interferon(IFN)-γ and TNF-α. CD8 activation with expression of perforin or proliferation measured by carboxyfluorescein succinimidyl ester assay. Results: Exposure of PBMCs to Calu3 cells infected with both RV led to significant release of IFN-γ and TNF-α, smaller release was seen in response to UV inactive RV. Exposure to PolyI:C also led to a similar release. CD8+ cells were found to be the primary source of IFN-γ release. CD8+ cells did not show an increase in perforin expression or evidence of proliferation. Conclusions; exposure of PBMCs and CD8+ cells to an RV infected bronchial epithelium alone results in an innate immune response mediated by TLR3 without evidence of a CD8 adaptive immune response.

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)0.000
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 score0.004
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.001

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 head0.019
GPT teacher head0.318
Teacher spread0.299 · 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
Published2009
Admission routes1
Has abstractyes

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