Transcriptomics

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Mapping the Spatial Dynamics of the Human Oral Mucosa in Chronic Inflammatory Disease


ABSTRACT: The interplay among different cells in a tissue is essential for maintaining homeostasis. Although, disease states have been traditionally attributed to individual cell types, increasing evidence and new therapeutic options have demonstrated the primary role of multicellular functions to understand health and disease, opening new avenues to understand pathogenesis and develop new treatment strategies. We recently described the cellular composition and dynamics of the human oral mucosa; however, the spatial arrangement of cells is needed to better understand a morphologically complex tissue. Here, we link single-cell RNA sequencing, spatial transcriptomics, and high-resolution multiplex fluorescence in situ hybridisation to characterise human oral mucosa in health and oral chronic inflammatory disease. We define highly specialised epithelial and stromal compartments and describe location-specific immune programs. Furthermore, we discovered fine regional fibroblast states, and spatially mapped a rare pathogenic population localised in a highly immunogenic region, responsible for lymphocyte recruitment through CXCL8 and CXCL10 and with a possible role in pathological angiogenesis through ALOX5AP. Collectively, our study provides a comprehensive reference for the study of oral chronic disease pathogenesis.

ORGANISM(S): Homo sapiens

PROVIDER: GSE206621 | GEO | 2023/02/01

REPOSITORIES: GEO

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