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Optimizing Attachment of Human Mesenchymal Stem Cells on Poly(ε-caprolactone) Electrospun Yarns
Published on: April 10, 2015
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A nanofibrous electrospun patch to maintain human mesenchymal cell stemness.
L Pandolfi1,2, N Toledano Furman1, Xin Wang1
1Department of Regenerative Medicine, Houston Methodist Research Institute, 6670 Bertner Ave., Houston, TX, 77030, USA.
Journal of Materials Science. Materials in Medicine
|February 4, 2017
Summary
A novel nanostructured gelatin patch effectively supports human mesenchymal stem cells (hMSCs), maintaining their stemness and differentiation potential for regenerative medicine applications. This biocompatible scaffold shows promise for 3D cell delivery with minimal inflammatory response.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Stem Cell Biology
Background:
- Mesenchymal stem cells (MSCs) are vital for tissue healing and widely studied in regenerative medicine.
- Current delivery methods using scaffolds can negatively impact MSC functionality and induce premature differentiation.
- An ideal scaffold should preserve MSC stemness until host-mediated signals trigger differentiation.
Purpose of the Study:
- To develop and evaluate a nanostructured electrospun gelatin patch for culturing human MSCs (hMSCs).
- To assess the patch's ability to maintain hMSC stemness, proliferation, and differentiation capacity.
- To investigate the in vivo biocompatibility and inflammatory response of the gelatin patch.
Main Methods:
- Fabrication of a nanostructured electrospun gelatin patch.
- Culture and expansion of hMSCs on the gelatin patch and in 2D culture.
- Assessment of hMSC proliferation, stemness, and differentiation potential (osteogenic, chondrogenic).
- In vivo evaluation of the patch's biocompatibility and inflammatory response using immunohistochemistry and non-invasive imaging.
Main Results:
- The gelatin patch demonstrated non-linear elastic properties and stability for up to 4 weeks.
- hMSCs cultured on the patch exhibited similar proliferation to 2D cultures but better maintained progenitor properties.
- The patch supported superior osteogenic and chondrogenic differentiation of hMSCs compared to 2D culture.
- No foreign body reaction was observed for up to 3 weeks post-implantation, indicating good biocompatibility.
Conclusions:
- The nanostructured gelatin patch is a suitable 3D environment for maintaining undifferentiated hMSCs in vitro for up to 21 days.
- The patch supports stemness and allows for subsequent differentiation into mesenchymal lineages upon induction.
- The biocompatible gelatin patch with low inflammatory response is a promising platform for in vivo applications in regenerative medicine.
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