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Estrogen alleviates acute and chronic itch in mice [exp2]

ABSTRACT: Estrogen alleviates acute and chronic itch in mice [exp2]

PROVIDER: PRJNA917537 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22955376_1.fastq.gz	Fastqsanger.gz
	SRR22955376_2.fastq.gz	Fastqsanger.gz
	SRR22955377_1.fastq.gz	Fastqsanger.gz
	SRR22955377_2.fastq.gz	Fastqsanger.gz
	SRR22955378_1.fastq.gz	Fastqsanger.gz

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Estrogen alleviates acute and chronic itch in mice [exp2]

Project description:RNAseq analysis showed that estrogen-treatment caused significantly reduced expression level of itch-related molecules

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Estrogen alleviates acute and chronic itch in mice

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Estrogen alleviates acute and chronic itch in mice

Project description:RNAseq analysis showed that estrogen-treatment caused significantly reduced expression level of itch-related molecules

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PLAUR-TLR2 Axis Promotes Chronic Itch

Project description:PLAUR-TLR2 Axis Promotes Chronic Itch

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Estrogen alleviates acute and chronic itch in mice.

Project description:Itching is associated with various skin diseases, including atopic dermatitis and allergic dermatitis, and leads to repeated scratching behavior and unpleasant sensation. Although clinical and laboratory research data have shown that estrogen is involved in regulating itch, the molecular and cellular basis of estrogen in itch sensation remains elusive. In the present study, it was found that estrogen-treated mice exhibited reduced scratching bouts when challenged with histamine, chloroquine, the proteinase-activated receptor-2 activating peptide SLIGRL-NH2 (SLIGRL), compound 48/80, and 5-hydroxytryptamine when compared with mice in the placebo group. Moreover, estrogen also suppressed scratching bouts in the mouse model of chronic itch induced by acetone-ether-water treatment. Notably, consistent with the behavioral tests, the present RNA-seq analysis showed that estrogen treatment caused significantly reduced expression levels of itch-related molecules such as Mas-related G-protein coupled receptor member A3, neuromedin B and natriuretic polypeptide b. In addition, estradiol attenuated histamine-induced and chloroquine-induced calcium influx in dorsal root ganglion neurons. Collectively, the data of the present study suggested that estrogen modulates the expression of itch-related molecules and suppresses both acute and chronic itch in mice.

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Sensory neurons co-opt classical immune signaling pathways to mediate chronic itch

Project description:Mammals have evolved neurophysiologic reflexes such as coughing and scratching to expel invading pathogens and noxious environmental factors. It is well established that these responses are also associated with chronic inflammatory diseases such as asthma and atopic dermatitis. However, the mechanisms by which inflammatory pathways promote sensations such as itch remain poorly understood. Here, we show that the type 2 cytokines IL-4 and IL-13 directly stimulate sensory neurons and that chronic itch is dependent on neuronal IL-4Rα and JAK1 signaling. In proof-of-concept clinical studies, we further show that patients with recalcitrant chronic itch markedly improve when treated with JAK inhibitors. Thus, signaling mechanisms previously ascribed to the immune system may represent novel therapeutic targets within the nervous system. Collectively, these studies reveal an evolutionarily conserved paradigm in which the sensory nervous system employs classical immune signaling pathways to influence mammalian behavior.

2017-09-18 | GSE90883 | GEO

PLAUR-TLR2 Axis Promotes Chronic Itch

Project description:In the present study, RNA-seq were performed To identify clinical relevance of PLAUR, a putative Serpin E1 receptor, in cutaneous itch signaling and crosstalk pathways with other critical itch modulators.mRNA profiles were generated by deep sequencing, in triplicate, using MGISEQ-2000. Our experiment showed Serpin E1-treatment further led to a marked upregulation of TLR2 transcript in mDRG neurons, along with enhanced transcription of cosignaling proteins belonging to pro-inflammatory signaling pathways including NF-κB signaling proteins. We next investigated the consequence of TLR2 activation in mTGNs using the TLR agonists, Pam3CSK4 (TLR1/2 agonist), FSL-1 (TLR2/6 agonist), or vehicle. Among these transcripts, TLR2 was found upregulated strongest by both TLR2 agonists suggesting a selfenhancing feedback loop of TLR2 activation.The PLAUR-TLR2 axis promotes cutaneous inflammation and itch, both feeding into an aggravation of AD. This finding might help us to better understand the skin-nerve communication in itch circuits.

2022-08-03 | GSE189333 | GEO

Urotensin II/GPR14 Pathway Regulates Chronic Itch in Mice

Project description:In order to analyze the regulatory effects of UII and GPR14 on gene transcription in Mc903-induced atopic dermatitis skin, ear skin collected from MC903 chronic itch mouse model on day 13 was used for in-depth analysis and sequencing of skin gene expression. The effect of GSK1562590 on the expression of pruritus and inflammatory factors in dermatitis was detected by RNA-seq.

2023-06-16 | GSE226669 | GEO

Urotensin II/GPR14 Pathway Regulates Chronic Itch in Mice

Project description:Urotensin II/GPR14 Pathway Regulates Chronic Itch in Mice

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Sensory neurons co-opt classical immune signaling pathways to mediate chronic itch [6 NaV1.8+ Il4raF/F mice treated with MC903 compared to skin from 4 littermates]

Project description:Mammals have evolved neurophysiologic reflexes such as coughing and scratching to expel invading pathogens and noxious environmental factors. It is well established that these responses are also associated with chronic inflammatory diseases such as asthma and atopic dermatitis. However, the mechanisms by which inflammatory pathways promote sensations such as itch remain poorly understood. Here, we show that type 2 cytokines directly stimulate sensory neurons in both mice and humans. Further, we demonstrate that chronic itch is dependent on neuronal IL-4Rα and JAK1 signaling. Based on these observations, we show that patients with recalcitrant chronic itch markedly improve when treated with JAK inhibitors in proof-of-concept clinical studies. Thus, signaling mechanisms previously ascribed to the immune system may represent novel therapeutic targets within the nervous system. Collectively, these studies reveal an evolutionarily conserved paradigm in which the sensory nervous system employs classical immune signaling pathways to influence mammalian behavior.

2017-09-18 | GSE100397 | GEO

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