Fowl Aviadenovirus 9 dUTPase Plays a Role in Regulation of the Host Immune Response
Bibliographic record
Abstract
Fowl aviadenoviruses (FAdVs) are distributed worldwide in poultry farms. Some FAdVs are the causative agents of inclusion body hepatitis and hydropericardium syndrome that cause significant economic losses to the poultry industry. In contrast with human adenovirus, the study of the molecular biology of FAdV is still far behind. We previously showed that FAdV-9 open reading frame 1 (ORF1) is a dUTPase enzyme that contributes to the upregulation of type I interferons and is not required for virus replication in vitro. In the present study, we compared virus replication in vivo and the host immune response in chickens orally inoculated with a dUTPase knockout virus (ORF1stop), the rescued version of ORF1stop (resORF1), and wtFAdV-9. Our data showed that replication of ORF1stop was delayed on days 1 and 3 postinoculation compared with wtFAdV-9, as evidenced by significantly less virus shedding in feces and lower viral loads in tissues. Moreover, we found that there was a significant difference in the induction of cytokine gene mRNA expression in tissues and IgG antibody responses in ORF1stop versus wtFAdV-9-infected chickens, suggesting that ORF1 plays some roles in modulating the host immune response. Our study provides useful data on the mechanism of the host immune response against FAdV infection.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".