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Programmed cell death-1 receptor mediated regulation of Tbet+NK1.1- Innate Lymphoid Cells Within the Tumor Microenvironment

ABSTRACT: Programmed cell death-1 receptor mediated regulation of Tbet+NK1.1- Innate Lymphoid Cells Within the Tumor Microenvironment

PROVIDER: PRJNA953967 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24116613_1.fastq.gz	Fastqsanger.gz
	SRR24116613_2.fastq.gz	Fastqsanger.gz

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Programmed cell death-1 receptor mediated regulation of Tbet+NK1.1- Innate Lymphoid Cells Within the Tumor Microenvironment

Project description:Innate Lymphoid Cells (ILCs) play a key role in tissue mediated immunity and can be controlled by co-receptor signaling. Here we define a subset of ILCs that are Tbet+NK1.1- and are present within the tumor microenvironment (TME). We show programmed death-1 receptor (PD-1) expression on ILCs within TME is found in Tbet+NK1.1-ILCs. PD-1 significantly controlled the proliferation and function of Tbet+NK1.1-ILCs in multiple murine and human tumors. We found tumor derived lactate enhanced PD-1 expression on Tbet+NK1.1-ILCs within the TME, which resulted in dampened mTOR signaling along with increased fatty acid uptake. In line with these metabolic changes, PD-1 deficient Tbet+NK1.1-ILCs expressed significantly increased IFNg, granzyme B and K. Furthermore, PD-1 deficient Tbet+NK1.1- ILCs contributed towards diminished tumor growth in an experimental murine model of melanoma. These data demonstrate that PD-1 can regulate anti-tumor responses of Tbet+NK1.1-ILCs within the tumor microenvironment.

2023-04-11 | GSE229288 | GEO

Programmed cell death-1 receptor-mediated regulation of Tbet<sup>+</sup>NK1.1<sup>-</sup> innate lymphoid cells within the tumor microenvironment.

Project description:Innate lymphoid cells (ILCs) play a key role in tissue-mediated immunity and can be controlled by coreceptor signaling. Here, we define a subset of ILCs that are Tbet+NK1.1- and are present within the tumor microenvironment (TME). We show programmed death-1 receptor (PD-1) expression on ILCs within TME is found in Tbet+NK1.1- ILCs. PD-1 significantly controlled the proliferation and function of Tbet+NK1.1- ILCs in multiple murine and human tumors. We found tumor-derived lactate enhanced PD-1 expression on Tbet+NK1.1- ILCs within the TME, which resulted in dampened the mammalian target of rapamycin (mTOR) signaling along with increased fatty acid uptake. In line with these metabolic changes, PD-1-deficient Tbet+NK1.1- ILCs expressed significantly increased IFNγ and granzyme B and K. Furthermore, PD-1-deficient Tbet+NK1.1- ILCs contributed toward diminished tumor growth in an experimental murine model of melanoma. These data demonstrate that PD-1 can regulate antitumor responses of Tbet+NK1.1- ILCs within the TME.

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Microbiome Modulation Uncouples Efficacy and Toxicity Induced by Programmed Death-1/Programmed Death-Ligand1 Blockade in multiple myeloma

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Tbet-Eomes

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Expression data from Tbet+ and Tbet- Memory B cells

Project description:The role of antibody and B cells in preventing infection is established. In contrast, the role of B cell responses in containing chronic infections remains poorly understood. IgG2a (IgG1 in humans) can prevent acute infections and T-bet promotes IgG2a isotype switching. However, whether IgG2a and B cell-expressed T-bet influence the host-pathogen balance during persisting infections is unclear. Here we demonstrate that B cell specific loss of T-bet prevents control of persisting viral infection. T-bet in B cells not only controlled IgG2a production, but also mucosal localization, proliferation, glycosylation, and a broad transcriptional program. T-bet controlled a broad antiviral program in addition to IgG2a since T-bet in B cells was imÂportant even in the presence of virus-specific IgG2a. Our data supports a model in which T-bet is a universal controller of antiviral immunity across multiple immune lineages. NaÃ¯ve, Tbet+, and Tbet- Memory B cells were assayed for gene expression Tbet GFP reporter mice were infected with LCMV clone 13, and target B cell populations were sorted from splenocytes at day 10 post-infection

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CD5−NK1.1+ γδ T cells that develop in a Bcl11b-independent manner participate in early protection against infection

Project description:We recently found that a unique subset of innate-like γδ T cells develop from the DN2a-stage of the fetal thymus independent of the zinc-finger transcription factor B-cell leukemia/lymphoma 11b (Bcl11b). Herein we characterized these Bcl11b-independent γδ T cells in the periphery as CD5−NK1.1+ and Granzyme B+, and show that they are capable of producing interferon (IFN)-γ upon T cell receptor stimulation without Ca2+ influx. In wild-type mice, these cells were sparse in lymphoid tissues but abundant in non-lymphoid tissues such as the liver. Bcl11b-independent CD5−NK1.1+ γδ T cells appeared and contributed to early protection before Bcl11b-dependent CD5+NK1.1− γδT cells following Listeria monocytogenes infection, recapitulating their appearance during thymic development.

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Extraembryonic gut endoderm cells undergo programmed cell death during development

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Extraembryonic gut endoderm cells undergo programmed cell death during development (RRBS)

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Extraembryonic gut endoderm cells undergo programmed cell death during development (WGBS)

Project description:Extraembryonic gut endoderm cells undergo programmed cell death during development (WGBS)