Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/37055
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Transcriptomic characterization of transitioning cell types in the skin of Atlantic salmon
Author(s): Ruiz Daniels, R.
Salisbury, S. J.
Sveen, L.
Villamayor, P. R.
Taylor, R. S.
Vaadal, M.
Tengs, T.
Krasnov, A.
Monaghan, S. J.
Penaloza, C.
Fast, M. D.
Bron, J. E.
Houston, R.
Robinson, N.
Robledo, D
Contact Email: rose.ruizdaniels@stir.ac.uk
Keywords: Salmo salar
Skin
Mesenchymal stromal cells
Single-cell sequencing
Spatial transcriptomics
Wound healing
Spatial niche
Issue Date: 28-Apr-2025
Date Deposited: 7-May-2025
Citation: Ruiz Daniels R, Salisbury SJ, Sveen L, Villamayor PR, Taylor RS, Vaadal M, Tengs T, Krasnov A, Monaghan SJ, Penaloza C, Fast MD, Bron JE, Houston R, Robinson N & Robledo D (2025) Transcriptomic characterization of transitioning cell types in the skin of Atlantic salmon. <i>BMC Biology</i>, 23 (1). https://doi.org/10.1186/s12915-025-02196-w
Abstract: Background The skin maintains the body’s integrity and serves as the first line of defence against pathogens, stressors and mechanical injuries. Despite the global signcance of salmon in aquaculture, how the transcriptomic profile of cells varies during wound healing remains unexplored. Teleost’s skin contains adult pluripotent cells that differentiate into various tissues, including bone, cartilage, tendon, ligament, adipose, dermis, muscle and connective tissue within the skin. These cells are pivotal for preserving the integrity of skin tissue throughout an organism’s lifespan and actively participate in the wound healing processes. In this study, we characterize the transcriptomic profiles of putative mesenchymal stromal cells (fibroblast-like adult stem cells) in healthy Atlantic salmon tissue and during the wound healing process. Results Single-nucleus sequencing and spatial transcriptomics were used to detect transcriptomic changes occurring during wound healing that are commonly associated with mesenchymal stromal cells. We followed the transcriptomic activity of these cells during an in vivo wound healing time course study showing that these cells become more transcriptionally active during the remodelling stage of wound healing. The changes detected give insights into the potential differentiation pathways leading to osteogenic and fibroblast lineages in the skin of Atlantic salmon. Conclusions We chart the transcriptomic activity of subclusters of putative differentiating stromal cells during the process of wound healing for the first time, revealing different spatial niches of the various putative MSC subclusters, and setting the stage for further investigation of the manipulation of transitioning cell types to improve fish health.
DOI Link: 10.1186/s12915-025-02196-w
Rights: © The Author(s) 2025. Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modifed the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
Licence URL(s): http://creativecommons.org/licenses/by-nc-nd/4.0/

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