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IL-33 signaling alters regulatory T cell diversity in support of tumor development

ABSTRACT: IL-33 signaling alters regulatory T cell diversity in support of tumor development

PROVIDER: PRJNA578851 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR10322330_1.fastq.gz	Fastqsanger.gz
	SRR10322330_2.fastq.gz	Fastqsanger.gz
	SRR10322331_1.fastq.gz	Fastqsanger.gz
	SRR10322331_2.fastq.gz	Fastqsanger.gz

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IL-33 signaling alters regulatory T cell diversity in support of tumor development

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IL-33 signaling alters regulatory T cell diversity in support of tumor development [2018]

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IL-33 signaling alters regulatory T cell diversity in support of tumor development

Project description:Regulatory T cells (Tregs) can impair anti-tumor immune responses and are associated with poor prognosis in multiple cancer types. Tregs in human tumors span diverse transcriptional states distinct from those of peripheral Tregs, but their contribution to tumor development remains unknown. Here, we use single cell RNA-Seq to longitudinally profile dynamic shifts in the distribution of Tregs in a genetically-engineered mouse model of lung adenocarcinoma. In this model, interferon-responsive Tregs are more prevalent early in tumor development, while a specialized effector phenotype characterized by enhanced expression of the interleukin 33 receptor ST2 is predominant in advanced disease. Treg-specific deletion of ST2 alters the evolution of effector Treg diversity, increases infiltration of CD8+ T cells into tumors, and decreases tumor burden. Our study shows that ST2 plays a critical role in Treg-mediated immunosuppression in cancer, highlighting potential paths for therapeutic intervention.

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IL-33 signaling alters regulatory T cell diversity in support of tumor development [2014]

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IL-33 signaling alters regulatory T cell diversity in support of tumor development [2018]

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IL-33 Signaling Alters Regulatory T Cell Diversity in Support of Tumor Development.

Project description:Regulatory T cells (Tregs) can impair anti-tumor immune responses and are associated with poor prognosis in multiple cancer types. Tregs in human tumors span diverse transcriptional states distinct from those of peripheral Tregs, but their contribution to tumor development remains unknown. Here, we use single-cell RNA sequencing (RNA-seq) to longitudinally profile dynamic shifts in the distribution of Tregs in a genetically engineered mouse model of lung adenocarcinoma. In this model, interferon-responsive Tregs are more prevalent early in tumor development, whereas a specialized effector phenotype characterized by enhanced expression of the interleukin-33 receptor ST2 is predominant in advanced disease. Treg-specific deletion of ST2 alters the evolution of effector Treg diversity, increases infiltration of CD8+ T cells into tumors, and decreases tumor burden. Our study shows that ST2 plays a critical role in Treg-mediated immunosuppression in cancer, highlighting potential paths for therapeutic intervention.

| S-EPMC6990979 | biostudies-literature

Characterization of long-term IL-33 administration as an animal model of pulmonary arterial hypertension

Project description:Pulmonary arterial hypertension (PAH) is characterized by severe obstruction of small pulmonary arteries and concomitant high pulmonary arterial pressure, resulting in progressive right ventricular failure. Previously, we demonstrated that long-term interleukin (IL)-33 administration in mice induced severe occlusive arterial hypertrophy in the lung, which was mediated by group 2 innate lymphoid cells (ILC2s). In response to IL-33, ILC2s accumulated around blood vessels and produced IL-5, leading to perivascular eosinophil recruitment. In this study, we further characterized IL-33-induced pulmonary arterial hypertrophy. We first demonstrated that long-term IL-33 administration caused an increase in the right ventricular pressure. In IL-33 deficient mice, pulmonary arterial hypertrophy mediated by eggs of Schistosoma mansoni (S. mansoni) was attenuated, accompanied with partial reduction in ILC2s, eosinophils and CD4+ T cells. In addition, proteomic analysis revealed dramatic changes in urine samples from mice treated with IL-33 or S. mansoni eggs. Resistin like alpha (RELM), a pulmonary hypertension-related molecule, in the urine was commonly detected in both treatments. Large amounts of RELM were observed in the lung from IL-33-treated mice. These observations support that IL-33-induced pulmonary arterial hypertrophy is a useful model to study the mechanism underlying development of PAH and expolar biomarkers to indicate the onset of PAH.

2024-09-27 | PXD055773 | JPOST Repository

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