ArticleJournal of tissue engineering
Mesenchymal stem cells delivered via a bioactive disordered peptide-hydrogel platform modulate early inflammation and enhance skeletal repair in a polytrauma model.
Article in Journal of tissue engineering. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07581613 (A Novel Proline-rich Peptide Hydrogel for Periodontal Regeneration), which is not on this map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Novel Proline-rich Peptide Hydrogel for Periodontal Regeneration: a Multicenter Parallel-arm Randomized Clinical Trial
Who cites it
1 citing paper in PubMed.
- Bone Grafts: Everything You Need to Know.Journal of periodontal research · 2026Review
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
Over 30% of polytrauma patients with bone fractures suffer from impaired healing and nonunion due to persistent systemic inflammation. Existing biologic strategies for bone repair primarily focus on osteogenesis but are not designed to modulate systemic immune dysregulation, limiting their utility in the polytrauma setting. To overcome this, we developed a hyaluronic acid-based hydrogel (HA) incorporating osteogenic intrinsically disordered peptides (P2) and mesenchymal stem cells (MSCs) to promote bone regeneration and modulate inflammation simultaneously. MSCs entrapped in hydrogels containing P2 (HA + P2) exhibited increased cell viability, alkaline phosphatase activity, and calcium deposition under in vitro polytrauma conditions compared to MSCs in hydrogels alone (HA). We utilized a murine polytrauma model (4 mm femoral osteotomy + blunt chest trauma) in mice. We studied the inflammatory response and bone formation over 21 days in mice treated with (1) HA, (2) HA + P2, or (3) HA + P2 + MSCs. We observed that adding P2 enhanced bone mineralization at the fracture site, yet transplantation of MSCs with P2 further increased mineralization. Both HA + P2 and HA + P2 + MSCs groups attenuated the systemic inflammatory response to near healthy baseline values. The HA + P2 group significantly accelerated the first stages of fracture healing by upregulating genes encoding for collagen biosynthesis, modifying enzymes, and extracellular matrix (ECM)-receptor interaction. Mice treated with HA + P2 + MSCs exhibited transcriptional regulation resulting in the upregulation of key repair genes related to cell cycle control, E2F transcriptional regulation, and TP53-mediated DNA repair, alongside downregulation of inflammatory pathways (IL-2, IL-3, and IL-5 signaling) and improved fracture healing. This study demonstrated that the combination of intrinsically disordered peptides and mesenchymal stem cells in HA-based hydrogels enhances bone formation, modulates both local and systemic inflammation, and improves structural organization at the fracture site in polytrauma conditions.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.