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    Fluorescent cell tracer dye permits real-time assessment of re-epithelialization in a serum-free ex vivo human skin wound assay

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    Publication date
    2019-01
    Author
    Nasir, N.A.M.
    Paus, R.
    Ansell, David M.
    Keyword
    Preclinical wound healing research
    Intravital fluorescent dye
    Re-epithelialization
    Healing of ex vivo wounds
    Human skin repair
    Rights
    © 2018 by the Wound Healing Society. This is the peer reviewed version of the following article: Nasir NAM, Paus R and Ansell DM (2019) Fluorescent cell tracer dye permits real-time assessment of re-epithelialization in a serum-free ex vivo human skin wound assay. Wound Repair and Regeneration. 27(1): 126-133, which has been published in final form at https://doi.org/10.1111/wrr.12688. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    Peer-Reviewed
    Yes
    
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    Abstract
    Ex vivo wounded human skin organ culture is an invaluable tool for translationally relevant preclinical wound healing research. However, studies incorporating this system are still underutilized within the field because of the low throughput of histological analysis required for downstream assessment. In this study, we use intravital fluorescent dye to lineage trace epidermal cells, demonstrating that wound re‐epithelialization of human ex vivo wounds occurs consistent with an extending shield mechanism of collective migration. Moreover, we also report a relatively simple method to investigate global epithelial closure of explants in culture using daily fluorescent dye treatment and en face imaging. This study is the first to quantify healing of ex vivo wounds in a longitudinal manner, providing global assessments for re‐epithelialization and tissue contraction. We show that this approach can identify alterations to healing with a known healing promoter. This methodological study highlights the utility of human ex vivo wounds in enhancing our understanding of mechanisms of human skin repair and in evaluating novel therapies to improve healing outcome.
    URI
    http://hdl.handle.net/10454/17786
    Version
    Accepted manuscript
    Citation
    Nasir NAM, Paus R and Ansell DM (2019) Fluorescent cell tracer dye permits real-time assessment of re-epithelialization in a serum-free ex vivo human skin wound assay. Wound Repair and Regeneration. 27(1): 126-133.
    Link to publisher’s version
    https://doi.org/10.1111/wrr.12688
    Type
    Article
    Collections
    Life Sciences Publications

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