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Spatial transcriptomics reveals altered lipid metabolism and inflammation-related gene expression of sebaceous glands in psoriasis and atopic dermatitis.
Front. Immunol. 15:1334844 (2024)
Sebaceous glands drive acne, however, their role in other inflammatory skin diseases remains unclear. To shed light on their potential contribution to disease development, we investigated the spatial transcriptome of sebaceous glands in psoriasis and atopic dermatitis patients across lesional and non-lesional human skin samples. Both atopic dermatitis and psoriasis sebaceous glands expressed genes encoding key proteins for lipid metabolism and transport such as ALOX15B, APOC1, FABP7, FADS1/2, FASN, PPARG, and RARRES1. Also, inflammation-related SAA1 was identified as a common spatially variable gene. In atopic dermatitis, genes mainly related to lipid metabolism (e.g. ACAD8, FADS6, or EBP) as well as disease-specific genes, i.e., Th2 inflammation-related lipid-regulating HSD3B1 were differentially expressed. On the contrary, in psoriasis, more inflammation-related spatially variable genes (e.g. SERPINF1, FKBP5, IFIT1/3, DDX58) were identified. Other psoriasis-specific enriched pathways included lipid metabolism (e.g. ACOT4, S1PR3), keratinization (e.g. LCE5A, KRT5/7/16), neutrophil degranulation, and antimicrobial peptides (e.g. LTF, DEFB4A, S100A7-9). In conclusion, our results show that sebaceous glands contribute to skin homeostasis with a cell type-specific lipid metabolism, which is influenced by the inflammatory microenvironment. These findings further support that sebaceous glands are not bystanders in inflammatory skin diseases, but can actively and differentially modulate inflammation in a disease-specific manner.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Atopic Dermatitis (ad) ; Inflammatory Skin Diseases ; Lipid Metabolism ; Psoriasis ; Sebaceous Glands ; Spatial Transcriptomics; Proliferator-activated Receptor; Growth-factor-i; Antimicrobial Peptides; Linoleic-acid; Human Skin; Sebum; Pathway; Identification; Individuals; Desaturase
ISSN (print) / ISBN
1664-3224
e-ISSN
1664-3224
Zeitschrift
Frontiers in Immunology
Quellenangaben
Band: 15,
Artikelnummer: 1334844
Verlag
Frontiers
Verlagsort
Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Förderungen
Hungarian National Research, Development and Innovation Office
Hans und Klementia Langmatz Stiftung
Federal Ministry for Digital and Economic Affairs of Austria
National Foundation for Research, Technology, and Development of Austria to the Christian Doppler Laboratory for Skin Multimodal Imaging of Aging
Deutsche Forschungsgemeinschaft (DFG) through TUM International Graduate School of Science and Engineering (IGSSE)
Hans und Klementia Langmatz Stiftung
Federal Ministry for Digital and Economic Affairs of Austria
National Foundation for Research, Technology, and Development of Austria to the Christian Doppler Laboratory for Skin Multimodal Imaging of Aging
Deutsche Forschungsgemeinschaft (DFG) through TUM International Graduate School of Science and Engineering (IGSSE)