Restoring tracheal defects in a rabbit model with tissue engineered patches based on TGF-β3-encapsulating electrospun poly( l -lactic acid-co-ε-caprolactone)/collagen scaffolds
Open accessAbstract
Long segment tracheal stenosis often has a poor prognosis due to the limited availability of materials for tracheal reconstruction. Tissue engineered tracheal patches based on electrospun scaffolds and stem cells present ideal solutions to this medical challenge. However, the established engineering process is inefficient and time-consuming. In our research, to optimize the engineering process, core-shell nanofilms encapsulating TGF-β3 were fabricated as scaffolds for tracheal patches. The morphological and mechanical characteristics, degradation and biocompatibility of poly(l-lactic acid-co-ε-caprolactone)/collagen (PLCL/collagen) scaffolds with different compositions (PLCL:collagen 75:25, 50:50 and 25:75, respectively) were comparatively evaluated to determine the preferable compositional ratio. Then the chondrogenesis-inducing potential is investigated, and tracheal patches based on electrospun scaffolds and bone marrow mesenchymal stem cells (BMSCs) were constructed to restore tracheal defects in rabbit models. The results indicated that core-shell scaffolds with a PLCL/collagen proportion of 75:25 were eligible for tracheal patches. The stable and sustained release of TGF-β3 from scaffolds could efficiently promote the chondrogenic differentiation of BMSCs and shorten the incubation time. Tracheal integrity was well maintained for 2 months after restoration; meanwhile, re-epithelialization also achieved. In conclusion, TGF-β3-encapsulating core-shell electrospun scaffolds with a PLCL/collagen proportion of 75:25 could be used to optimize engineering process of tracheal patches.
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PLCL/collagen scaffold packaged with TGF-β releases TGF-β stably, effectively promotes chondrogenesis and differentiation of BMSCs, and promotes repair of tracheal defects in rabbit models.
“Jing et al. constructed a PLCL/collagen scaffold packaged with TGF-β to repair tracheal defects in rabbit animal models, and the results showed that TGF-β could be released stably from the scaffold, effectively promote chondrogenesis and differentiation of BMSCs, and promote the repair of tracheal defects [215].”
From Application of PLCL as a biodegradable polymer in biomedical engineering (2026) · cites this paper as [215]
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Self-citation
- Authors
- Jing, H., Gao, B., Gao, M., Yin, H., Mo, X., Zhang, X., Luo, K., Feng, B., Fu, W., Wang, J., Zhang, W., Yin, M., Zhu, Z., He, X., & Zheng, J.
- Affiliations
- Shanghai Jiao Tong University (CN)
- Donghua University (CN)
- Corresponding author
- He, Xiaomin
- Zheng, Jinghao
- ORCID
- Venue
- Artificial Cells, Nanomedicine, and Biotechnology
- Publisher
- Informa UK Limited
- Published
- 2018-02-15
- Volume
- 46
- Issue
- sup1
- Pages
- 985-995
- ISSN
- 2169-1401 (ISSN-L)
- 2169-141X
- OpenAlex
- W2790277573
- Cited by
- 17
- References
- 22
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 3 · 2023: 1 · 2021: 2 · 2020: 1 · 2019: 3
- FWCI
- 0.49
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Artificial Cells Nanomedicine and Biotechnology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China
- Shanghai Jiao Tong University
- Topics
- Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
- Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Tracheal and airway disorders
- Keywords
- tracheal stenosis, tracheal reconstruction, electrospun scaffolds, bone marrow mesenchymal stem cells, chondrogenic differentiation, sustained growth factor release, scaffold degradation, biocompatibility, re-epithelialization, rabbit model
- MeSH terms
- Animals, Biocompatible Materials, Capsules, Cell Differentiation, Collagen, Electricity, Polyesters, Rabbits, Trachea, Chondrogenesis, Tissue Engineering, Mice, Transforming Growth Factor beta3, Tissue Scaffolds, Mechanical Phenomena, Mesenchymal Stem Cells, Drug Liberation
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