摘要
The homeostatic mechanisms that fail to restrain chronic tissue inflammation in diseases, such as psoriasis vulgaris, remain incompletely understood. We profiled transcriptomes and epitopes of single psoriatic and normal skin-resident T cells, revealing a gradated transcriptional program of coordinately regulated inflammation-suppressive genes. This program, which is sharply suppressed in lesional skin, strikingly restricts Th17/Tc17 cytokine and other inflammatory mediators on the single-cell level. CRISPR-based deactivation of two core components of this inflammation-suppressive program, ZFP36L2 and ZFP36, replicates the interleukin-17A (IL-17A), granulocyte macrophage-colony-stimulating factor (GM-CSF), and interferon gamma (IFNγ) elevation in psoriatic memory T cells deficient in these transcripts, functionally validating their influence. Combinatoric expression analysis indicates the suppression of specific inflammatory mediators by individual program members. Finally, we find that therapeutic IL-23 blockade reduces Th17/Tc17 cell frequency in lesional skin but fails to normalize this inflammatory-suppressive program, suggesting how treated lesions may be primed for recurrence after withdrawal of treatment.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 100715 |
| 期刊 | Cell Reports Medicine |
| 卷 | 3 |
| 期 | 8 |
| DOI | |
| 出版状态 | 已出版 - 16 8月 2022 |
| 已对外发布 | 是 |
学术指纹
探究 'A single-cell transcriptional gradient in human cutaneous memory T cells restricts Th17/Tc17 identity' 的科研主题。它们共同构成独一无二的指纹。引用此
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