<i>Wls</i>Provides a New Compartmental View of the Rhombic Lip in Mouse Cerebellar Development
Bibliographic record
Abstract
Math1 is the defining molecule of the cerebellar rhombic lip and Pax6 is downstream in the Math1 pathway. In the present study, we discover that Wntless (Wls) is a novel molecular marker of the cells in the interior face of the rhombic lip throughout normal mouse cerebellar development. Wls expression is found complementary to the expression of Math1 and Pax6, which are localized to the exterior face of the rhombic lip. To determine the interaction between these molecules, we examine the loss-of-Math1 or loss-of-Pax6 in the cerebellum, i.e., the Math1-null and Pax6-null (Sey) mutant cerebella. The presence of Wls-positive cells in the Math1-null rhombic lip indicates that Wls expression is independent of Math1. In the Sey mutant cerebellum, there is an expansion of Wls-expressing cells into regions that are normally colonized by Pax6-expressing cells. The ectopic expression of Wls in the Pax6-null cerebellum suggests a negative interaction between Wls-expressing cells and Pax6-positive cells. These findings suggest that the rhombic lip is dynamically patterned by the expression of Wls, Math1, and Pax6. We also examine five rhombic lip cell markers (Wls, Math1, Pax6, Lmx1a, and Tbr2) to identify four molecularly distinct compartments in the rhombic lip during cerebellar development. The existence of spatial compartmentation in the rhombic lip and the interplay between Wls, Math1, and Pax6 in the rhombic lip provides novel views of early cerebellar development.
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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) | 0.000 | 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) | 0.000 | 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".