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Kyriakou S, Lubig A, Sandhoff CA, Kuhn Y, Jockenhoevel S. Influence of Diameter and Cyclic Mechanical Stimulation on the Beating Frequency of Myocardial Cell-Laden Fibers. Gels 2023; 9:677. [PMID: 37754359 PMCID: PMC10528042 DOI: 10.3390/gels9090677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/12/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023] Open
Abstract
Atrioventricular block (AVB) is a severe disease for pediatric patients. The repetitive operations needed in the case of the pacemaker implantation to maintain the electrical signal at the atrioventricular node (AVN) affect the patient's life quality. In this study, we present a method of biofabrication of multi-cell-laden cylindrical fibrin-based fibers that can restore the electrical signal at the AVN. We used human umbilical vein smooth muscle cells (HUVSMCs), human umbilical vein endothelial cells (HUVECs) and induced pluripotent stem cell cardiomyocytes (iPSC-CMs) cultivated either statically or dynamically to mimic the native AVN. We investigated the influence of cell composition, construct diameter and cyclic stretch on the function of the fibrin hydrogels in vitro. Immunohistochemistry analyses showed the maturity of the iPSC-CMs in the constructs through the expression of sarcomeric alpha actinin (SAA) and electrical coupling through Connexin 43 (Cx43) signal. Simultaneously, the beating frequency of the fibrin hydrogels was higher and easy to maintain whereas the concentration of iPSC-CMs was higher compared with the other types of cylindrical constructs. In total, our study highlights that the combination of fibrin with the cell mixture and geometry is offering a feasible biofabrication method for tissue engineering approaches for the treatment of AVB.
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Affiliation(s)
- Stavroula Kyriakou
- Department of Biohybrid & Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany; (S.K.); (C.A.S.); (Y.K.)
| | - Andreas Lubig
- Department of Biohybrid & Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany; (S.K.); (C.A.S.); (Y.K.)
| | - Cilia A. Sandhoff
- Department of Biohybrid & Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany; (S.K.); (C.A.S.); (Y.K.)
| | - Yasmin Kuhn
- Department of Biohybrid & Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany; (S.K.); (C.A.S.); (Y.K.)
| | - Stefan Jockenhoevel
- Department of Biohybrid & Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany; (S.K.); (C.A.S.); (Y.K.)
- AMIBM-Aachen-Maastricht-Institute for Biobased Materials, Maastricht University, 186260 Geleen, The Netherlands
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Advanced Graft Development Approaches for ACL Reconstruction or Regeneration. Biomedicines 2023; 11:biomedicines11020507. [PMID: 36831043 PMCID: PMC9953332 DOI: 10.3390/biomedicines11020507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/12/2023] Open
Abstract
The Anterior Cruciate Ligament (ACL) is one of the major knee ligaments, one which is greatly exposed to injuries. According to the British National Health Society, ACL tears represent around 40% of all knee injuries. The number of ACL injuries has increased rapidly over the past ten years, especially in people from 26-30 years of age. We present a brief background in currently used ACL treatment strategies with a description of surgical reconstruction techniques. According to the well-established method, the PubMed database was then analyzed to scaffold preparation methods and materials. The number of publications and clinical trials over the last almost 30 years were analyzed to determine trends in ACL graft development. Finally, we described selected ACL scaffold development publications of engineering, medical, and business interest. The systematic PubMed database analysis indicated a high interest in collagen for the purpose of ACL graft development, an increased interest in hybrid grafts, a numerical balance in the development of biodegradable and nonbiodegradable grafts, and a low number of clinical trials. The investigation of selected publications indicated that only a few suggest a real possibility of creating healthy tissue. At the same time, many of them focus on specific details and fundamental science. Grafts exhibit a wide range of mechanical properties, mostly because of polymer types and graft morphology. Moreover, most of the research ends at the in vitro stage, using non-certificated polymers, thus requiring a long time before the medical device can be placed on the market. In addition to scientific concerns, official regulations limit the immediate introduction of artificial grafts onto the market.
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Luo W, Wang Y, Han Q, Wang Z, Jiao J, Gong X, Liu Y, Zhang A, Zhang H, Chen H, Wang J, Wu M. Advanced strategies for constructing interfacial tissues of bone and tendon/ligament. J Tissue Eng 2022; 13:20417314221144714. [PMID: 36582940 PMCID: PMC9793068 DOI: 10.1177/20417314221144714] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/26/2022] [Indexed: 12/25/2022] Open
Abstract
Enthesis, the interfacial tissue between a tendon/ligament and bone, exhibits a complex histological transition from soft to hard tissue, which significantly complicates its repair and regeneration after injury. Because traditional surgical treatments for enthesis injury are not satisfactory, tissue engineering has emerged as a strategy for improving treatment success. Rapid advances in enthesis tissue engineering have led to the development of several strategies for promoting enthesis tissue regeneration, including biological scaffolds, cells, growth factors, and biophysical modulation. In this review, we discuss recent advances in enthesis tissue engineering, particularly the use of biological scaffolds, as well as perspectives on the future directions in enthesis tissue engineering.
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Affiliation(s)
- Wangwang Luo
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Yang Wang
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Qing Han
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Zhonghan Wang
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China,Orthopaedic Research Institute of Jilin
Province, Changchun, China
| | - Jianhang Jiao
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Xuqiang Gong
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Yang Liu
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Aobo Zhang
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Han Zhang
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Hao Chen
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Jincheng Wang
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China
| | - Minfei Wu
- Department of Orthopedics, The Second
Hospital of Jilin University, Changchun, China,Minfei Wu, Department of Orthopedics, The
Second Hospital of Jilin University, 218 Ziqiang Sreet, Changchun 130041, China.
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Podder AK, Mohamed MA, Tseropoulos G, Nasiri B, Andreadis ST. Engineering Nanofiber Scaffolds with Biomimetic Cues for Differentiation of Skin-Derived Neural Crest-like Stem Cells to Schwann Cells. Int J Mol Sci 2022; 23:10834. [PMID: 36142746 PMCID: PMC9504850 DOI: 10.3390/ijms231810834] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/31/2022] [Accepted: 09/13/2022] [Indexed: 01/17/2023] Open
Abstract
Our laboratory reported the derivation of neural crest stem cell (NCSC)-like cells from the interfollicular epidermis of the neonatal and adult epidermis. These keratinocyte (KC)-derived Neural Crest (NC)-like cells (KC-NC) could differentiate into functional neurons, Schwann cells (SC), melanocytes, and smooth muscle cells in vitro. Most notably, KC-NC migrated along stereotypical pathways and gave rise to multiple NC derivatives upon transplantation into chicken embryos, corroborating their NC phenotype. Here, we present an innovative design concept for developing anisotropically aligned scaffolds with chemically immobilized biological cues to promote differentiation of the KC-NC towards the SC. Specifically, we designed electrospun nanofibers and examined the effect of bioactive cues in guiding KC-NC differentiation into SC. KC-NC attached to nanofibers and adopted a spindle-like morphology, similar to the native extracellular matrix (ECM) microarchitecture of the peripheral nerves. Immobilization of biological cues, especially Neuregulin1 (NRG1) promoted the differentiation of KC-NC into the SC lineage. This study suggests that poly-ε-caprolactone (PCL) nanofibers decorated with topographical and cell-instructive cues may be a potential platform for enhancing KC-NC differentiation toward SC.
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Affiliation(s)
- Ashis Kumar Podder
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
- School of Pharmacy, Brac University, Dhaka 1212, Bangladesh
| | - Mohamed Alaa Mohamed
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Georgios Tseropoulos
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
| | - Bita Nasiri
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
| | - Stelios T. Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
- Department of Biomedical Engineering, University at Buffalo, The State University of New York (SUNY); Buffalo, NY 14260, USA
- Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
- Center of Cell, Gene and Tissue Engineering (CGTE), University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260, USA
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Electrospun Materials for Biomedical Applications. Pharmaceutics 2022; 14:pharmaceutics14081556. [PMID: 35893812 PMCID: PMC9394412 DOI: 10.3390/pharmaceutics14081556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 12/04/2022] Open
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