Actin cytoskeleton protection by the formin-mediated safety valve
Bibliographic record
Abstract
Mechanical forces shape cellular form and function by regulating key cellular processes; however, when dysregulated, they contribute to disease. Excessive forces can be detrimental to cells, damaging cytoskeleton, deforming nuclei, and even rupturing the cell itself. To counteract these effects, cells deploy protective mechanisms that enhance mechanical resilience. Emerging evidence highlights a novel strategy for rapid tension release via force-dependent actin polymerization mediated by formin-family proteins such as Dia1. Acting as a mechanical "safety valve", Dia1 buffers otherwise damaging stress and promotes zyxin-mediated repair, preserving cytoskeletal architecture, safeguarding the nucleus, and maintaining cellular integrity. Loss of Dia1 disrupts signaling cascades that converge on key mechanotransduction processes governing cell fate and disease progression. In this review, we explore recent advances in force-dependent actin polymerization and its role in cytoskeletal protection, nuclear homeostasis, and cellular adaptation to mechanical forces.
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How this classification was reachedexpand
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 | 0.001 |
| 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 | 0.001 | 0.001 |
| 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 teacher head, 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".