Transcriptomics

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Cell atlas of the human ocular anterior segment: Tissue-specific and shared cell types


ABSTRACT: The anterior segment of the eye consists of the cornea, iris, ciliary body, crystalline lens and aqueous humor outflow pathways. Together, these tissues are essential for the proper functioning of the eye. Disorders of vision have been ascribed to defects in all of them; some, including glaucoma and cataract, are among the most prevalent causes of blindness. To characterize the cell types that comprise these tissues, we generated an anterior segment cell atlas of the human eye using high throughput single-nucleus RNA sequencing (snRNAseq). We profiled 191,992 single nuclei from non-diseased anterior segment tissues from 6 human donors, identifying >60 cell types. Many are discrete, whereas others in lens and cornea form continua, corresponding to known developmental transitions that persist in adulthood. Having profiled each tissue separately, we performed an integrated analysis of the entire anterior segment revealing that some cell types are unique to single structure whereas others are shared across tissues. This integrated cell atlas was then used to investigate cell type-specific expression patterns of more than >900 human ocular disease genes identified either through Mendelian inheritance patterns or genome-wide association studies (GWAS).

ORGANISM(S): Homo sapiens

PROVIDER: GSE199013 | GEO | 2022/07/11

REPOSITORIES: GEO

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