ArticleStem cell research & therapy2024
The application of a 4D-printed chitosan-based stem cell carrier for the repair of corneal alkali burns.
Article in Stem cell research & therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- Pooled it
- A bioactivity-enhanced thermosensitive amnion-derived hydrogel with sustained IGF-1 release: A multitargeted and efficient strategy for corneal injury repair.Bioactive materials · 2027Article
- Adipose-derived extracellular vesicles miR-423-5p targets SMAD3 to reverse endometrial fibrosis in a porcine model of intrauterine adhesion: insights from single-cell sequencing.Materials today. Bio · 2026Article
- Revolutionizing vision using corneal 3D printing.Trends in biotechnology · 2026Review
- Application and Single-Cell Regulation Mechanism of Engineered EVs Combined With 4D-Printed Hydrogel for Infected Burn Repair.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- From Smart Hydrogel Design to 4D-Printed Scaffolds: Emerging Paradigms in Precision Drug Delivery and Regenerative Wound Therapy.Gels (Basel, Switzerland) · 2026Review
- 4D-printed hydrogel with precise regulation of viability and environment of stem cells for diabetic skin wound healing.Materials today. Bio · 2025Article
- Corneal Epithelial Tissue Engineering Strategy Based on Cell Viability Optimization: A Review and Prospects.Bioengineering (Basel, Switzerland) · 2025Review
- Transforming corneal alkali burn treatment: unveiling mechanisms and pioneering therapies from bench to bedside.Journal of translational medicine · 2025Review
- 4D Printing in Veterinarian Science: The Coming Technology.Veterinary medicine and science · 2025Review
- Microenvironment-sensitive hydrogels as promising drug delivery systems for co-encapsulating microbial homeostasis probiotics and anti-inflammatory drugs to treat periodontitis.Materials today. Bio · 2025Review
- Progress in Nanotechnology for Treating Ocular Surface Chemical Injuries: Reflecting on Advances in Ophthalmology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Review
- Repairing Effect and Mechanism of the 4-Dimensionally Printed Limbal Stem Cell Strategy on Corneal Alkali Burns in Large Animals.Biomaterials research · 2025Article
- Advancements in Polymer Biomaterials as Scaffolds for Corneal Endothelium Tissue Engineering.Polymers · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundCorneal alkali burns can lead to ulceration, perforation, and even corneal blindness due to epithelial defects and extensive cell necrosis, resulting in poor healing outcomes. Previous studies have found that chitosan-based in situ hydrogel loaded with limbal epithelium stem cells (LESCs) has a certain reparative effect on corneal alkali burns. However, the inconsistent pore sizes of the carriers and low cell loading rates have resulted in suboptimal repair outcomes. In this study, 4D bioprinting technology was used to prepare a chitosan-based thermosensitive gel carrier (4D-CTH) with uniform pore size and adjustable shape to improve the transfer capacity of LESCs.
methodsPrepare solutions of chitosan acetate, carboxymethyl chitosan, and β-glycerophosphate sodium at specific concentrations, and mix them in certain proportions to create a pore-size uniform scaffold using 4D bioprinting technology. Extract and culture rat LESCs (rLESCs) in vitro, perform immunofluorescence experiments to observe the positivity rate of deltaNp63 cells for cell identification. Conduct a series of experiments to validate the cell compatibility of 4D-CTH, including CCK-8 assay to assess cell toxicity, scratch assay to evaluate the effect of 4D-CTH on rLESCs migration, and Calcein-AM/PI cell staining experiment to examine the impact of 4D-CTH on rLESCs proliferation and morphology. Establish a severe alkali burn model in rat corneas, transplant rLESCs onto the injured cornea using 4D-CTH, periodically observe corneal opacity and neovascularization using a slit lamp, and evaluate epithelial healing by fluorescein sodium staining. Assess the therapeutic effect 4D-CTH-loaded rLESCs on corneal alkali burn through histological evaluation of corneal tissue paraffin sections stained with hematoxylin and eosin, as well as immunofluorescence staining of frozen sections.
resultsUsing the 4D-CTH, rLESCs were transferred to the alkali burn wounds of rats. Compared with the traditional treatment group (chitosan in situ hydrogel encapsulating rLESCs), the 4D-CTH-rLESC group had significantly higher repair efficiency of corneal injury, such as lower corneal opacity score (1.2 ± 0.4472 vs 0.4 ± 0.5477, p < 0.05) and neovascularization score (5.5 ± 1.118 vs 2.6 ± 0.9618, p < 0.01), and significantly higher corneal epithelial wound healing rate (72.09 ± 3.568% vs 86.60 ± 5.004%, p < 0.01).
conclusionIn summary, the corneas of the 4D-CTH-rLESC treatment group were similar to the normal corneas and had a complete corneal structure. These findings suggested that LESCs encapsulated by 4D-CTH significantly accelerated corneal wound healing after alkali burn and can be considered as a rapid and effective method for treating epithelial defects.
Indexed as
Identifiers
What OpenQuestion holds
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.