IL-4 Potentiates Activated T Cell Apoptosis Via an IL-2-Dependent Mechanism
Why this work is in the frame
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Bibliographic record
Abstract
Activation-induced cell death (AICD) of T cells is one of the major mechanisms of peripheral tolerance. The regulation of AICD by IL-4 is poorly understood. In this study, we report that AICD in IL-4-deficient T cells is significantly reduced compared with that in wild-type T cells. This impaired AICD correlates with the failure to induce degradation of cellular FLIP. IL-4-mediated enhancement of AICD and cellular FLIP degradation requires a Janus kinase/STAT-6 signaling pathway. Unexpectedly, these effects of IL-4 could be blocked by a neutralizing anti-IL-2 Ab, and addition of rIL-2 could completely restore the defective AICD in IL-4-deficient T cells. Furthermore, IL-4 regulates the T cell thresholds for IL-2 signaling during AICD. These data suggest that IL-4 promotes AICD via an IL-2-dependent mechanism.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 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 | 0.001 | 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 it