Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth

Urethral healing is plagued by strictures, impacting quality of life and medical costs. Various growth factors (GFs) have shown promise as therapeutic approaches to improve healing, but there is no protocol for in vitro comparison between GFs. This study focuses the development of a biomimetic in vi...

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Main Authors: Christopher Foster, Todd Jensen, Christine Finck, Courtney K. Rowe
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Methods and Protocols
Subjects:
Online Access:https://www.mdpi.com/2409-9279/6/4/64
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author Christopher Foster
Todd Jensen
Christine Finck
Courtney K. Rowe
author_facet Christopher Foster
Todd Jensen
Christine Finck
Courtney K. Rowe
author_sort Christopher Foster
collection DOAJ
description Urethral healing is plagued by strictures, impacting quality of life and medical costs. Various growth factors (GFs) have shown promise as therapeutic approaches to improve healing, but there is no protocol for in vitro comparison between GFs. This study focuses the development of a biomimetic in vitro urothelial healing assay designed to mimic early in vivo healing, followed by an evaluation of urothelial cell growth in response to GFs. Methods: Wound-healing assays were developed with human urothelial cells and used to compared six GFs (EGF, FGF-2, IGF-1, PDGF, TGF-β1, and VEGF) at three concentrations (1 ng/mL, 10 ng/mL, and 100 ng/mL) over a 48 h period. A commercial GF-containing medium (EGF, TGF-α, KGF, and Extract P) and a GF-free medium were used as controls. Results: There was a statistically significant increase in cell growth for IGF-1 at 10 and 100 ng/mL compared to both controls (<i>p</i> < 0.05). There was a statistically significant increase in cell growth for EGF at all concentrations compared to the GF-free medium control (<i>p</i> < 0.05). Conclusion: This study shows the development of a clinically relevant wound-healing assay to evaluate urothelial cell growth. It is the first to compare GFs for future use in reconstructive techniques to improve urethral healing.
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spelling doaj.art-83eac0ffa89e47f480bb030dfa698fe92023-11-19T02:26:13ZengMDPI AGMethods and Protocols2409-92792023-07-01646410.3390/mps6040064Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell GrowthChristopher Foster0Todd Jensen1Christine Finck2Courtney K. Rowe3Department of Pediatrics, University of Connecticut School of Medicine, Farmington, CT 06032, USADepartment of Pediatrics, University of Connecticut School of Medicine, Farmington, CT 06032, USADepartment of Pediatrics, University of Connecticut School of Medicine, Farmington, CT 06032, USADepartment of Pediatrics, University of Connecticut School of Medicine, Farmington, CT 06032, USAUrethral healing is plagued by strictures, impacting quality of life and medical costs. Various growth factors (GFs) have shown promise as therapeutic approaches to improve healing, but there is no protocol for in vitro comparison between GFs. This study focuses the development of a biomimetic in vitro urothelial healing assay designed to mimic early in vivo healing, followed by an evaluation of urothelial cell growth in response to GFs. Methods: Wound-healing assays were developed with human urothelial cells and used to compared six GFs (EGF, FGF-2, IGF-1, PDGF, TGF-β1, and VEGF) at three concentrations (1 ng/mL, 10 ng/mL, and 100 ng/mL) over a 48 h period. A commercial GF-containing medium (EGF, TGF-α, KGF, and Extract P) and a GF-free medium were used as controls. Results: There was a statistically significant increase in cell growth for IGF-1 at 10 and 100 ng/mL compared to both controls (<i>p</i> < 0.05). There was a statistically significant increase in cell growth for EGF at all concentrations compared to the GF-free medium control (<i>p</i> < 0.05). Conclusion: This study shows the development of a clinically relevant wound-healing assay to evaluate urothelial cell growth. It is the first to compare GFs for future use in reconstructive techniques to improve urethral healing.https://www.mdpi.com/2409-9279/6/4/64urethrawound healinggrowth factorregenerative medicine
spellingShingle Christopher Foster
Todd Jensen
Christine Finck
Courtney K. Rowe
Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
Methods and Protocols
urethra
wound healing
growth factor
regenerative medicine
title Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
title_full Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
title_fullStr Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
title_full_unstemmed Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
title_short Development of a Wound-Healing Protocol for In Vitro Evaluation of Urothelial Cell Growth
title_sort development of a wound healing protocol for in vitro evaluation of urothelial cell growth
topic urethra
wound healing
growth factor
regenerative medicine
url https://www.mdpi.com/2409-9279/6/4/64
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AT courtneykrowe developmentofawoundhealingprotocolforinvitroevaluationofurothelialcellgrowth