A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration
Reconstructed ACL cannot completely restore its functions due to absence of physiologically viable environment for optimal biomaterial-cell interaction. Currently available procedures only mechanically attach grafts to bone without any biological integration. How the ACL cells perform this biologica...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-10-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2022.969282/full |
| _version_ | 1797991797773828096 |
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| author | Abass Ojo Adeoye Fariza Mukasheva Smail Smatov Bakhytbol Khumyrzakh Sanazar Kadyr Zarina Shulgau Cevat Erisken |
| author_facet | Abass Ojo Adeoye Fariza Mukasheva Smail Smatov Bakhytbol Khumyrzakh Sanazar Kadyr Zarina Shulgau Cevat Erisken |
| author_sort | Abass Ojo Adeoye |
| collection | DOAJ |
| description | Reconstructed ACL cannot completely restore its functions due to absence of physiologically viable environment for optimal biomaterial-cell interaction. Currently available procedures only mechanically attach grafts to bone without any biological integration. How the ACL cells perform this biological attachment is not fully understood partly due to the absence of appropriate environment to test cell behavior both in vitro and in vivo. Availability of biomimetic models would enable the scientists to better explore the behavior of cells at health and during tissue healing. In this study, it is hypothesized that the collagen fibril diameter distribution in rat ACL changes from a bimodal distribution in the healthy ACL to a unimodal distribution after injury, and that this change can be mimicked in synthetic nanofiber-based constructs. This hypothesis was tested by first creating an injured rat ACL model by applying a mechanical tensile force to the healthy ACL tissue until rupture. Secondly, the collagen fibril diameter distributions of healthy and injured ACL tissue were determined, and polycaprolactone (PCL) constructs were created to mimic the distributions of collagen fibrils in healthy and injured tissues. Findings reveal that the fiber diameter distribution of aligned bimodal PCL constructs were similar to that of the collagen fibrils in native ACL tissue. This study is significant because suggested bimodal and unimodal fibrous model constructs, respectively, represent a healthy and injured tissue environment and the behavior of ACL cells cultured on these constructs may provide significant input on ACL regeneration mechanism. |
| first_indexed | 2024-04-11T08:57:57Z |
| format | Article |
| id | doaj.art-07a7b48d4c0b413bba26eb9414be639e |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-04-11T08:57:57Z |
| publishDate | 2022-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-07a7b48d4c0b413bba26eb9414be639e2022-12-22T04:33:03ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852022-10-011010.3389/fbioe.2022.969282969282A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regenerationAbass Ojo Adeoye0Fariza Mukasheva1Smail Smatov2Bakhytbol Khumyrzakh3Sanazar Kadyr4Zarina Shulgau5Cevat Erisken6Department of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanDepartment of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanDepartment of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanDepartment of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanDepartment of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanNational Center for Biotechnology, Laboratory of Toxicology and Pharmacology, Astana, KazakhstanDepartment of Chemical and Materials Engineering, Nazarbayev University, Astana, KazakhstanReconstructed ACL cannot completely restore its functions due to absence of physiologically viable environment for optimal biomaterial-cell interaction. Currently available procedures only mechanically attach grafts to bone without any biological integration. How the ACL cells perform this biological attachment is not fully understood partly due to the absence of appropriate environment to test cell behavior both in vitro and in vivo. Availability of biomimetic models would enable the scientists to better explore the behavior of cells at health and during tissue healing. In this study, it is hypothesized that the collagen fibril diameter distribution in rat ACL changes from a bimodal distribution in the healthy ACL to a unimodal distribution after injury, and that this change can be mimicked in synthetic nanofiber-based constructs. This hypothesis was tested by first creating an injured rat ACL model by applying a mechanical tensile force to the healthy ACL tissue until rupture. Secondly, the collagen fibril diameter distributions of healthy and injured ACL tissue were determined, and polycaprolactone (PCL) constructs were created to mimic the distributions of collagen fibrils in healthy and injured tissues. Findings reveal that the fiber diameter distribution of aligned bimodal PCL constructs were similar to that of the collagen fibrils in native ACL tissue. This study is significant because suggested bimodal and unimodal fibrous model constructs, respectively, represent a healthy and injured tissue environment and the behavior of ACL cells cultured on these constructs may provide significant input on ACL regeneration mechanism.https://www.frontiersin.org/articles/10.3389/fbioe.2022.969282/fullanterior cruciate ligamentcollagen fibrilsratelectrospinningPCLnanofiber |
| spellingShingle | Abass Ojo Adeoye Fariza Mukasheva Smail Smatov Bakhytbol Khumyrzakh Sanazar Kadyr Zarina Shulgau Cevat Erisken A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration Frontiers in Bioengineering and Biotechnology anterior cruciate ligament collagen fibrils rat electrospinning PCL nanofiber |
| title | A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration |
| title_full | A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration |
| title_fullStr | A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration |
| title_full_unstemmed | A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration |
| title_short | A biomimetic synthetic nanofiber-based model for anterior cruciate ligament regeneration |
| title_sort | biomimetic synthetic nanofiber based model for anterior cruciate ligament regeneration |
| topic | anterior cruciate ligament collagen fibrils rat electrospinning PCL nanofiber |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2022.969282/full |
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