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Article

Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells

  • Authors:
    • Yang Hu
    • Bei Feng
    • Weijie Zhang
    • Chenxi Yan
    • Qinke Yao
    • Chunyi Shao
    • Fei Yu
    • Fen Li
    • Yao Fu
  • View Affiliations / Copyright

    Affiliations: Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, P.R. China, Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University, School of Medicine, Shanghai 200127, P.R. China
  • Pages: 3717-3726
    |
    Published online on: March 13, 2019
       https://doi.org/10.3892/etm.2019.7387
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Abstract

The determination of potential transplantable substrates and substitution cells for corneal endothelium transplantation may compensate for the shortage of cornea donors. Appropriate biodegradable and biocompatible tissue‑engineered substratum with seed cells for endothelial keratoplasty has been increasingly studied. In the present study, electrospun gelatin/polycaprolactone (PCL) and collagen/PCL scaffolds were successfully established. Bone marrow endothelial progenitor cells (BEPCs) were cultured on these scaffolds to determine whether the scaffolds may promote the proliferation of BEPCs as well as maintain stem cell characteristics. Two variations of hybrid scaffolds, collagen/PCL (70% collagen and 30% PCL) and gelatin/PCL (70% gelatin and 30% PCL), were established via electrospinning. Microscopic structure, hydrophilicity and wettability of the two scaffolds were subsequently investigated. BEPCs were separately cultured on the scaffolds and were also seeded on glass slides to establish the control group. Furthermore, cell morphology; adherence, as determined by investigation of F‑actin expression levels; proliferation, as determined via Cell Counting Kit‑8 assays, Ki‑67 staining and bromodeoxyuridine (BrdU) staining; and stem cell markers, as determined by cluster of differentiation (CD)‑34 and CD‑133 protein expression levels; were investigated. In addition, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to determine gene expression. The two nanofiber scaffolds were established using electrospun techniques with expected hydrophilicity, wettability and biocompatibility. BEPCs were revealed to spread well on and strongly adhere to the collagen/PCL (70:30) and gelatin/PCL (70:30) scaffolds. Furthermore, Ki‑67 and BrdU staining results revealed greater levels of positive dots on the two hybrid scaffolds compared with the control group. CD‑34 and CD‑133 protein staining demonstrated increased levels of fluorescence intensity on scaffolds compared with the control group. Furthermore, increased expression levels of differentiation markers, such as ATP binding cassette subfamily G member 2, leucine rich repeat containing G protein‑coupled receptor 5 and CD166, were detected on both scaffolds. RT‑qPCR results demonstrated that the expression of caspase‑3, which is associated with apoptosis, was decreased on the two scaffolds compared with in the control group. The expression of inflammatory factors, including interleukin (IL)‑1, exhibited a significant decrease on the gelatin/PCL scaffold compared with in the control group; whereas the difference between the expression level of IL‑1 exhibited by the collagen/PCL group and the control group were not markedly different. Electrospun collagen/PCL and gelatin/PCL scaffolds exhibited the potential to enhance the adherence and proliferation of BEPCs. BEPCs cultured on the two scaffolds demonstrated increased stem cell characteristics and differentiation potential. Electrospun gelatin/PCL and collagen/PCL scaffolds may represent a promising substratum in tissue‑engineered corneal endothelium.
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Copy and paste a formatted citation
Spandidos Publications style
Hu Y, Feng B, Zhang W, Yan C, Yao Q, Shao C, Yu F, Li F and Fu Y: Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells. Exp Ther Med 17: 3717-3726, 2019.
APA
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C. ... Fu, Y. (2019). Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells. Experimental and Therapeutic Medicine, 17, 3717-3726. https://doi.org/10.3892/etm.2019.7387
MLA
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C., Yu, F., Li, F., Fu, Y."Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells". Experimental and Therapeutic Medicine 17.5 (2019): 3717-3726.
Chicago
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C., Yu, F., Li, F., Fu, Y."Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells". Experimental and Therapeutic Medicine 17, no. 5 (2019): 3717-3726. https://doi.org/10.3892/etm.2019.7387
Copy and paste a formatted citation
x
Spandidos Publications style
Hu Y, Feng B, Zhang W, Yan C, Yao Q, Shao C, Yu F, Li F and Fu Y: Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells. Exp Ther Med 17: 3717-3726, 2019.
APA
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C. ... Fu, Y. (2019). Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells. Experimental and Therapeutic Medicine, 17, 3717-3726. https://doi.org/10.3892/etm.2019.7387
MLA
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C., Yu, F., Li, F., Fu, Y."Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells". Experimental and Therapeutic Medicine 17.5 (2019): 3717-3726.
Chicago
Hu, Y., Feng, B., Zhang, W., Yan, C., Yao, Q., Shao, C., Yu, F., Li, F., Fu, Y."Electrospun gelatin/PCL and collagen/PCL scaffolds for modulating responses of bone marrow endothelial progenitor cells". Experimental and Therapeutic Medicine 17, no. 5 (2019): 3717-3726. https://doi.org/10.3892/etm.2019.7387
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