Role of Complement Anaphylatoxin C3a in Photodynamic Therapy‐elicited Engagement of Host Neutrophils and Other Immune Cells
Why this work is in the frame
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Bibliographic record
Abstract
Tumor treatment by photodynamic therapy (PDT) provokes a host-protective inflammatory and acute-phase response and an immune reaction. Neutrophilia manifested in this context is driven by multiple mediators of neutrophil chemotaxis orchestrated by an activated complement system. Mouse FsaR fibrosarcoma was used in this study to further investigate neutrophilia induced by Photofrin-based PDT. The complement anaphylatoxin C3a was identified as a major chemoattractant in the advanced phase of PDT-induced neutrophilia, because injecting mice with antibodies blocking its receptor C3aR significantly inhibited the increase in neutrophil levels 8 h after PDT. At the same time point, an increased C3aR expression was detected in neutrophils, monocytes and B lymphocytes in the blood of host mice. Peritoneal macrophages and mast cells harvested from treatment-naive mice exhibited elevated C3aR expression after coincubation in vitro for 8 h with PDT-treated FsaR cells. Thus, C3a emerges as one of the key effector molecules engaged in PDT-induced host response.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 it