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Functional Roles of Epithelial and Endothelial Cells

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Biochemistry".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 801

Special Issue Editors


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Guest Editor
1. Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada
2. Regenerative Medicine Division, CHU de Québec—Université Laval Research Centre, Québec, QC G1J 1Z4, Canada
3. Université Laval Research Center on Experimental Organogenesis/LOEX, Québec, QC G1J 1Z4, Canada
Interests: regenerative medicine; tissue engineering; cell biology; cell therapy; gene therapy; cornea; skin
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
1. Regenerative Medicine Division of the Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1J 1Z4, Canada
2. Département d’Ophtalmologie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
3. Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Hôpital Enfant-Jésus, 1401 18e Rue, Québec, QC G1V 0A6, Canada
Interests: cornea; tissue engineering

Special Issue Information

Dear Colleagues

Epithelial cells cover the surfaces of the body. For those that come into contact with the outside world, such as the skin and cornea, the epithelium protects the inner layers from external injuries that can arise from chemical, biological or physical insults. The importance of the epithelium is reinforced by the fact that the failed rapid closure of a wound can result in complications, such as scars, ulcers and infections. On the other hand, endothelial cells cover the inner surface of blood vessels (or the inner surface of the cornea for this specific tissue), forming a barrier that regulates exchanges between two structures. Apart from blood flow, the endothelium also plays key roles in immunology, inflammation, and angiogenesis. In the case of the corneal endothelium, endothelial dysfunctions result in excess fluid entering the stroma, causing vision loss.

In this Special Issue, reviews and articles will demonstrate the importance of epithelial and endothelial functionality in tissue homeostasis, mainly but not restricted to the skin and cornea, using 2D (cell cultured) and 3D (tissue-engineered) models. Topics related to the regulation of cellular processes, intercellular communication, signaling pathways, pump-leak balance, and barrier functionality are welcomed. 

Prof. Dr. Lucie Germain
Prof. Dr. Stéphanie Proulx
Guest Editors

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Keywords

  • epithelial cells
  • wound healing
  • endothelial cells
  • skin
  • cornea
  • functionality
  • barrier

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Published Papers (1 paper)

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Research

14 pages, 4738 KiB  
Article
Hepatocyte Growth Factor Modulates Corneal Endothelial Wound Healing In Vitro
by Merle Tratnig-Frankl, Nikolaus Luft, Guiseppe Magistro, Siegfried Priglinger, Andreas Ohlmann and Stefan Kassumeh
Int. J. Mol. Sci. 2024, 25(17), 9382; https://doi.org/10.3390/ijms25179382 - 29 Aug 2024
Viewed by 310
Abstract
In this study, we assessed the impact of hepatocyte growth factor (HGF) on corneal endothelial cells (CECs), finding that HGF concentrations of 100–250 ng/mL significantly increased CEC proliferation by 30%, migration by 32% and improved survival under oxidative stress by 28% compared to [...] Read more.
In this study, we assessed the impact of hepatocyte growth factor (HGF) on corneal endothelial cells (CECs), finding that HGF concentrations of 100–250 ng/mL significantly increased CEC proliferation by 30%, migration by 32% and improved survival under oxidative stress by 28% compared to untreated controls (p < 0.05). The primary objective was to identify non-fibrotic pharmacological strategies to enhance corneal endothelial regeneration, addressing a critical need in conditions like Fuchs’ endothelial dystrophy (FED), where donor tissue is scarce. To confirm the endothelial nature of the cultured CECs, Na+/K+-ATPase immunohistochemistry was performed. Proliferation rates were determined through BrdU incorporation assays, while cell migration was assessed via scratch assays. Cell viability was evaluated under normal and oxidative stress conditions using WST-1 assays. To ensure that HGF treatment did not trigger epithelial-mesenchymal transition, which could lead to undesirable fibrotic changes, α-SMA staining was conducted. These comprehensive methodologies provided robust data on the effects of HGF, confirming its potential as a therapeutic agent for corneal endothelial repair without inducing harmful EMT, as indicated by the absence of α-SMA expression. These findings suggest that HGF holds therapeutic promise for enhancing corneal endothelial repair, warranting further investigation in in vivo models to confirm its clinical applicability. Full article
(This article belongs to the Special Issue Functional Roles of Epithelial and Endothelial Cells)
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