Designer probiotic-based living drugs for uric acid homeostasis control in hyperuricemic mice and rats
Bibliographic record
Abstract
Engineered probiotics can effectively manage hyperuricemia, a condition characterized by increased serum uric acid (UA) levels, leading to several chronic diseases. In this study, we design a probiotic-based UA level sensing and adjustment (PULSE)-engineered bacterium to maintain UA homeostasis. We generate a UA sensor in the E. coli Nissle 1917 strain based on a UA-responsive transcriptional repressor HucR, integrated with a synthetic promoter. Upon oral administration of engineered probiotics, PULSE cells dynamically regulate urate oxidase expression, reducing UA in the gastrointestinal tract in response to increased serum levels. We have demonstrated the potential of PULSE-engineered bacteria in maintaining UA balance in acute and chronic hyperuricemic mouse and rat models, highlighting the potential for long-term oral administration in reducing hyperuricemia-associated renal damage. Our probiotic-based living drug supports the progress of engineered probiotics as a safe, effective, and patient-friendly alternative to typical therapeutics for chronic disease management.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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".