Methods to Improve Efficacy in Suicide Gene Therapy Approaches: Targeting Prodrug-Activating Enzymes Carboxypeptidase G2 and Nitroreductase to Different Subcellular Compartments
Bibliographic record
Abstract
Current cancer chemotherapy strategies are often hampered by the lack of tumor selectivity, resulting in unwanted damage to healthy tissue. Gene-directed enzyme-prodrug therapy (GDEPT) (1) and virus-directed enzyme-prodrug therapy (VDEPT) (2) are suicide gene therapy approaches that aim to deliver cytotoxic agents to tumor cells in a specific manner, thus improving the selectivity of chemotherapy and protecting normal cells from adverse side effects. In the first step, a gene encoding a foreign enzyme is delivered to tumor cells (see Fig. 1). The aim is to express the enzyme only in the tumor cells and then administer a prodrug. Prodrugs are small molecules that are nontoxic to normal cells, but are converted to potent cytotoxic agents in tumors. In GDEPT, the foreign enzyme performs this conversion, so if the enzyme is successfully targeted, the toxin will only be produced in the tumor, sparing normal tissues from excessive damage.
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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 | 0.001 | 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".