Destruction of Choroid Plexus Cells in Vitro: A New Concept for the Treatment of Hydrocephalus?
Bibliographic record
Abstract
OBJECTIVE: The current treatment of hydrocephalus using ventriculoperitoneal shunts and third ventriculostomies remains problematic. We revisited the concept of destruction of the choroid plexus for the treatment of hydrocephalus by using an immunotoxin-based technique to specifically destroy this tissue. This approach was based on the observation that, as an epithelial tissue, choroid plexus expresses a number of specific cell-surface proteins that represent excellent potential targets for the creation of a choroid plexus-specific immunotoxin. METHODS: In this study, we characterized sheep and human choroid plexus cells (including atypical and carcinoma cell lines) using fluorescence microscopy in combination with histochemical staining of rat brain and confirmed the presence of a number of epithelium-specific proteins in choroid plexus cells. Immunotoxins were then manufactured by linking these antibodies to ricin A chain and ricin A-B chain. These immunotoxins were delivered to choroid plexus-derived cells in culture, and the results were compared with results of exposure to a nonspecific immunotoxin. RESULTS: Complete cell death of choroid plexus cells was seen after only a 1-hour exposure to the specific immunotoxin, as opposed to the minimal cell death seen with a nonspecific immunotoxin after several hours of exposure. CONCLUSION: These results suggest that immunotoxin-mediated ablation of choroid plexus may be a viable method of treating hydrocephalus and choroid plexus-derived tumors.
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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".