Prion protein in exosomes: partnering Aβ peptides and driving fibrilization
Bibliographic record
Abstract
image This Editorial highlights a study by Falker and coworkers in which the authors expanded the notion of how prion protein (PrPC) can be involved with the neurotoxicity promoted by Aβ oligomers, the most toxic component in Alzheimer's Disease. While confirming that PrPC is secreted from cells in exosomes, they showed that at the surface of these vesicles PrPC is capable of binding to dimeric up to pentameric, oligomeric Aβ42, and Aβ42 fibrils. In addition, by binding to diverse oligomeric Aβ42 components, exosomal PrPC accelerated Aβ42 fibrilization leading to decrease in the neurotoxicity mediated by Aβ42 as well as Aβ42 internalization. These data suggest an opportunity to design new therapeutic compounds for Alzheimer's disease. Read the highlighted article ‘Exosomal cellular prion protein drives fibrillization of amyloid beta and counteracts amyloid beta‐mediated neurotoxicity’ on page 88 .
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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 | 0.001 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.018 | 0.013 |
| Insufficient payload (model declined to judge) | 0.003 | 0.004 |
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".