Single-cell transcriptomics of human-skin-equivalent organoids

Adam R. Stabell; Grace E. Lee; Yunlong Jia; Kirsten N. Wong; Shuxiong Wang; Ji Ling; Sandrine D. Nguyen; George L. Sen; Qing Nie; Scott X. Atwood

Cell Reports (May 2023)

Single-cell transcriptomics of human-skin-equivalent organoids

Adam R. Stabell,
Grace E. Lee,
Yunlong Jia,
Kirsten N. Wong,
Shuxiong Wang,
Ji Ling,
Sandrine D. Nguyen,
George L. Sen,
Qing Nie,
Scott X. Atwood

Affiliations

Adam R. Stabell: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
Grace E. Lee: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
Yunlong Jia: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
Kirsten N. Wong: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
Shuxiong Wang: Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
Ji Ling: Department of Dermatology, University of California, San Diego, La Jolla, CA 92093, USA
Sandrine D. Nguyen: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
George L. Sen: Department of Dermatology, University of California, San Diego, La Jolla, CA 92093, USA; Department of Cellular and Molecular Medicine, UCSD Stem Cell Program, University of California, San Diego, La Jolla, CA 92093, USA
Qing Nie: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA; Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA; Center for Complex Biological Systems, Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA 92697, USA
Scott X. Atwood: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA; Center for Complex Biological Systems, Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA 92697, USA; Department of Dermatology, University of California, Irvine, Irvine, CA 92697, USA; Corresponding author

Journal volume & issue: Vol. 42, no. 5
p. 112511

Abstract

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Summary: Several methods for generating human-skin-equivalent (HSE) organoid cultures are in use to study skin biology; however, few studies thoroughly characterize these systems. To fill this gap, we use single-cell transcriptomics to compare in vitro HSEs, xenograft HSEs, and in vivo epidermis. By combining differential gene expression, pseudotime analyses, and spatial localization, we reconstruct HSE keratinocyte differentiation trajectories that recapitulate known in vivo epidermal differentiation pathways and show that HSEs contain major in vivo cellular states. However, HSEs also develop unique keratinocyte states, an expanded basal stem cell program, and disrupted terminal differentiation. Cell-cell communication modeling shows aberrant epithelial-to-mesenchymal transition (EMT)-associated signaling pathways that alter upon epidermal growth factor (EGF) supplementation. Last, xenograft HSEs at early time points post transplantation significantly rescue many in vitro deficits while undergoing a hypoxic response that drives an alternative differentiation lineage. This study highlights the strengths and limitations of organoid cultures and identifies areas for potential innovation.

CP: Stem cell research

Published in Cell Reports

ISSN: 2211-1247 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Biology (General)
Website: http://www.cell.com/cell-reports/home

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