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Ascorbic Acid 2-Phosphate-Releasing Supercritical Carbon Dioxide-Foamed Poly(L-Lactide-Co-epsilon-Caprolactone) Scaffolds Support Urothelial Cell Growth and Enhance Human Adipose-Derived Stromal Cell Proliferation and Collagen Production. J Tissue Eng Regen Med 2023. [DOI: 10.1155/2023/6404468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Tissue engineering can provide a novel approach for the reconstruction of large urethral defects, which currently lacks optimal repair methods. Cell-seeded scaffolds aim to prevent urethral stricture and scarring, as effective urothelium and stromal tissue regeneration is important in urethral repair. In this study, the aim was to evaluate the effect of the novel porous ascorbic acid 2-phosphate (A2P)-releasing supercritical carbon dioxide-foamed poly(L-lactide-co-ε-caprolactone) (PLCL) scaffolds (scPLCLA2P) on the viability, proliferation, phenotype maintenance, and collagen production of human urothelial cell (hUC) and human adipose-derived stromal cell (hASC) mono- and cocultures. The scPLCLA2P scaffold supported hUC growth and phenotype both in monoculture and in coculture. In monocultures, the proliferation and collagen production of hASCs were significantly increased on the scPLCLA2P compared to scPLCL scaffolds without A2P, on which the hASCs formed nonproliferating cell clusters. Our findings suggest the A2P-releasing scPLCLA2P to be a promising material for urethral tissue engineering.
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Gerwinn T, Salemi S, Schori LJ, Planta D, Eberli D, Horst M. Improved contractile potential in detrusor microtissues from pediatric patients with end stage lower urinary tract dysfunction. Front Cell Dev Biol 2022; 10:1007265. [PMID: 36268506 PMCID: PMC9577217 DOI: 10.3389/fcell.2022.1007265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 09/20/2022] [Indexed: 11/14/2022] Open
Abstract
Autologous cell-based tissue engineering has been proposed as a treatment option for end stage lower urinary tract dysfunction (ESLUTD). However, it is generally accepted that cells isolated from patient bladders retain the pathological properties of their tissue of origin and therefore need to be improved before they can serve as a cell source for tissue engineering applications. We hypothesize that human three-dimensional (3D) microtissues of detrusor smooth muscle cells (SMCs) are valuable ex vivo disease models and potent building blocks for bladder tissue engineering. Detrusor SMCs isolated from bladder wall biopsies of pediatric ESLUTD patients and healthy controls were expanded and cultured into 3D microtissues. Gene and protein analyses were performed to explore the effect of microtissue formation on SMC viability, contractile potential, bladder wall specific extracellular matrix (ECM) composition and mediators of ECM remodeling. Through microtissue formation, remodeling and intensified cell-cell interactions, the ESLUTD SMCs lost their characteristic disease phenotype. These microtissues exhibited similar patterns of smooth muscle related contractile proteins and essential bladder wall-specific ECM components as microtissues from healthy control subjects. Thus, the presented data suggest improved contractile potential and ECM composition in detrusor SMC microtissues from pediatric ESLUTD patients. These findings are of great relevance, as 3D detrusor SMC microtissues might be an appropriate cell source for autologous cell-based bladder tissue engineering.
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Affiliation(s)
- Tim Gerwinn
- Division of Pediatric Urology, University Children’s Hospital Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
- *Correspondence: Tim Gerwinn,
| | - Souzan Salemi
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Larissa J. Schori
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Dafni Planta
- Division of Pediatric Urology, University Children’s Hospital Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Maya Horst
- Division of Pediatric Urology, University Children’s Hospital Zurich, Zurich, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
- Laboratory for Urologic Oncology and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
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Deveaud CM, Kennedy WA, Zderic SA, Howard PS. Biochemical and physiological characterization of the urinary bladder in Ehlers-Danlos syndrome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1999; 462:201-14; discussion 225-33. [PMID: 10599425 DOI: 10.1007/978-1-4615-4737-2_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- C M Deveaud
- Department of Anatomy and Histology, School of Dental Medicine, University of Pennsylvania, Philadelphia, USA
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