Lysosomal basification and decreased autophagic flux in oxidatively stressed trabecular meshwork cells
Why this work is in the frame
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Bibliographic record
Abstract
Increasing evidence suggests oxidative damage as a key factor contributing to the failure of the conventional outflow pathway tissue to maintain appropriate levels of intraocular pressure, and thus increase the risk for developing glaucoma, a late-onset disease which is the second leading cause of permanent blindness worldwide. Autophagy is emerging as an essential cellular survival mechanism against a variety of stressors, including oxidative stress. Here, we have monitored, by using different methodologies (LC3-I to LC3-II turnover, tfLC3, and Cyto ID), the induction of autophagy and autophagy flux in TM cells subjected to a normobaric hyperoxic model of mild chronic oxidative stress. Our data indicate the MTOR-mediated activation of autophagy and nuclear translocation of TFEB in oxidatively stressed TM cells, as well as the role of autophagy in the occurrence of SA-GLB1/SA-β-gal. Concomitant with the activation of the autophagic pathway, TM cells grown under oxidative stress conditions displayed, however, reduced cathepsin (CTS) activities, reduced lysosomal acidification and impaired CTSB proteolytic maturation, resulting in decreased autophagic flux. We propose that diminished autophagic flux induced by oxidative stress might represent one of the factors leading to progressive failure of cellular TM function with age and contribute to the pathogenesis of primary open angle glaucoma.
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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) | 0.000 | 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) | 0.002 | 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