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Wiener DJ, Basak O, Asra P, Boonekamp KE, Kretzschmar K, Papaspyropoulos A, Clevers H. Establishment and characterization of a canine keratinocyte organoid culture system. Vet Dermatol 2018; 29:375-e126. [PMID: 29963730 DOI: 10.1111/vde.12541] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Perturbations of epidermal and follicular homeostasis have been attributed to a variety of skin diseases affecting dogs. The availability of an in vitro system to investigate these diseases is important to understand underlying pathomechanisms. OBJECTIVES To establish an accurate and reliable in vitro 3D system of canine keratinocyte organoids to lay the basis for studying functional defects in interfollicular epidermis (IFE) and hair follicle (HF) morphogenesis, reconstitution and differentiation that lead to alopecic and epidermal diseases. ANIMALS Skin biopsies were obtained from freshly euthanized dogs of different breeds with no skin abnormalities. METHODS Cells derived from microdissected IFE and HFs were seeded in Matrigel and keratinocyte organoids were grown and characterized using immunohistochemistry, RT-qPCR and RNA sequencing. RESULTS Both organoid lines develop into a basal IFE-like cell type. Gene and protein expression analysis revealed high mRNA and protein levels of keratins 5 and 14, IFE differentiation markers and intercellular molecules. Key markers of HF stem cells were lacking. Withdrawal of growth factors resulted in upregulation of markers such as KRT16, Involucrin, KRT17 and SOX9, showing the potential of the organoids to develop towards more differentiated tissue. CONCLUSION AND CLINICAL IMPORTANCE Our 3D in vitro culture system provides the basis to explore epidermal function, to investigate the culture conditions necessary for the development of organoids with a HF signature and to address cutaneous disorders in dogs. However, for induction of HF signatures or hair growth, addition of different growth factors or co-culture with dermal papilla will be required.
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Affiliation(s)
- Dominique J Wiener
- Vetsuisse Faculty, Institute of Animal Pathology, University of Bern, Länggassstrasse 122, 3012, Bern, Switzerland.,Dermfocus, Vetsuisse Faculty, Inselspital, Bern University Hospital, Freiburgstrasse 14, 3010, Bern, Switzerland.,Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands
| | - Onur Basak
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Priyanca Asra
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Kim E Boonekamp
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Kai Kretzschmar
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Angelos Papaspyropoulos
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands
| | - Hans Clevers
- Hubrecht Institute for Developmental Biology and Stem Cell Research, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Centre (UMC) Utrecht, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands.,Cancer Genomics Netherlands, UMC Utrecht, Universiteitsweg 100, CG, 3584, Utrecht, the Netherlands.,Princess Máxima Centre for Pediatric Oncology, Uppsalalaan 8, 3584 CT, Utrecht, the Netherlands
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