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Innate type 2 immunity controls hair follicle commensalism by Demodex mites [IL-4, IL-13]

ABSTRACT: Innate type 2 immunity controls hair follicle commensalism by Demodex mites [IL-4, IL-13]

PROVIDER: PRJNA816363 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18331142.fastq.gz	Fastqsanger.gz
	SRR18331143.fastq.gz	Fastqsanger.gz
	SRR18331144.fastq.gz	Fastqsanger.gz
	SRR18331145.fastq.gz	Fastqsanger.gz
	SRR18331146.fastq.gz	Fastqsanger.gz

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Innate type 2 immunity controls hair follicle commensalism by Demodex mites [IL-4, IL-13]

Project description:Demodex mites are obligate commensal parasites of hair follicles (HF) in mammals. Normally asymptomatic, inflammatory outgrowth of mites can accompany malnutrition, immune dysfunction and aging, but mechanisms restricting Demodex outgrowth and pathogenesis are not defined. Here, we show that control over mite HF colonization of mice requires ILC2s, IL-13, and its receptor IL-4Ra, but not IL-4 or the adaptive immune system. Epithelial HF-associated ILC2s elaborate IL-13 that attenuates HF and epithelial cell proliferation at anagen onset; in their absence, Demodex colonization leads to increased epithelial proliferation and replacement of gene programs for repair by aberrant inflammatory programs leading to loss of barrier function and premature HF exhaustion over time. Humans with rhinophymatous acne rosacea, a nasal inflammatory condition associated with a high burden of Demodex, had increased HF inflammatory cells with decreased type 2 cytokines, consistent with the inverse relationship seen in mice. Our studies uncover a critical role for skin ILC2s and IL-13, which comprise an immune checkpoint necessary to sustain cutaneous integrity and restrict pathologic infestation by colonizing HF mites.

2022-11-29 | GSE198657 | GEO

Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2021]

2022-08-29 | GSE197982 | GEO

Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2019]

2022-08-29 | GSE197981 | GEO

Innate type 2 immunity controls hair follicle commensalism by Demodex mites

Project description:Innate type 2 immunity controls hair follicle commensalism by Demodex mites

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Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2021]

Project description:Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2021]

| PRJNA813233 | ENA

Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2019]

Project description:Innate type 2 immunity controls hair follicle commensalism by Demodex mites [2019]

| PRJNA813234 | ENA

Innate type 2 immunity controls hair follicle commensalism by Demodex mites.

Project description:Demodex mites are commensal parasites of hair follicles (HFs). Normally asymptomatic, inflammatory outgrowth of mites can accompany malnutrition, immune dysfunction, and aging, but mechanisms restricting Demodex outgrowth are not defined. Here, we show that control of mite HF colonization in mice required group 2 innate lymphoid cells (ILC2s), interleukin-13 (IL-13), and its receptor, IL-4Ra-IL-13Ra1. HF-associated ILC2s elaborated IL-13 that attenuated HFs and epithelial proliferation at anagen onset; in their absence, Demodex colonization led to increased epithelial proliferation and replacement of gene programs for repair by aberrant inflammation, leading to the loss of barrier function and HF exhaustion. Humans with rhinophymatous acne rosacea, an inflammatory condition associated with Demodex, had increased HF inflammation with decreased type 2 cytokines, consistent with the inverse relationship seen in mice. Our studies uncover a key role for skin ILC2s and IL-13, which comprise an immune checkpoint that sustains cutaneous integrity and restricts pathologic infestation by colonizing HF mites.

| S-EPMC9561030 | biostudies-literature

Innate type 2 immunity controls hair follicle commensalism by Demodex mites

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-08-29 | GSE197983 | GEO

human Demodex

Project description:Demodex folliculorum and Demodex brevis Raw sequence reads

| PRJNA510298 | ENA

Demodex folliculorum

Project description:Demodex folliculorum overview

| PRJNA1371032 | ENA