Rosuvastatin-loaded injectable immunomodulatory hydrogel mitigates local immune response against transplanted stem cells and promotes heart repair in vivo
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Bibliographic record
Abstract
In clinical trials allogeneic mesenchymal stem cells (MSCs) from young and healthy donors have shown promise to repair the heart following a heart attack. However, immune rejection of transplanted MSCs has prevented the clinical translation of stem cells-based therapies for cardiac patients. Therefore, strategies to improve survival of implanted stem cells in the heart would be of immense therapeutic value. This study presents the development of a novel immunomodulatory chitosan-rosuvastatin (CR) hydrogel loaded with MSCs for cardiac repair. The hydrogel showed excellent 3 dimensional (3D) structure and porosity, and was found to support the growth of MSCs. In an in vivo rat model of myocardial infarction (MI), the immunomodulatory CR hydrogel provided physical bulk, improved the retention of MSCs and cardiac function at 4 weeks after MI. The RNA sequencing data demonstrate that rosuvastatin improved the “stemness” of MSCs and reduced the activation of T-cells, downregulated T H1 polarization in response to inflammatory stress in the infarcted heart. Therefore, the current study presents a new paradigm in improving clinical effectiveness of stem cell therapy for cardiac repair by modulating local immune response in the heart against transplanted stem cells using a novel immunomodulatory CR hydrogel.
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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) | 0.001 | 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 it