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Neuropilin-1(NRP1) is a T cell memory checkpoint limiting long-term anti-tumor immunity

ABSTRACT: Neuropilin-1(NRP1) is a T cell memory checkpoint limiting long-term anti-tumor immunity

PROVIDER: PRJNA635953 | ENA |

REPOSITORIES: ENA

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Neuropilin-1(NRP1) is a T cell memory checkpoint limiting long-term anti-tumor immunity

Project description:Transcriptomic analysis of NRP1 KO and WT donor pMel-T cells recovered from B16-gp100 tumors

2020-07-01 | GSE151494 | GEO

RNAseq of HUVECs transfected with siRNA targeting Neuropilin 1 (NRP1) (si-NRP1) or a control non-targeting sequence (si-control) and exposed to unidirectional shear stress (20dyns/cm2), oscillatory flow (5dyn/cm2) or kept in absence of flow

Project description:HUVECs transfected with siRNA targeting Neuropilin 1(NRP1) (si-NRP1) or a control non-targeting sequence (si-control) and exposed to unidirectional shear stress (20dyns/cm2), oscillatory flow (5dyn/cm2) or kept in absence of flow.

2023-05-23 | E-MTAB-12191 | biostudies-arrayexpress

Neuropilin-1 mediates lung tissue-specific control of ILC2s function in type 2 immunity

Project description:ILC2s are highly heterogeneous tissue-resident lymphocytes that regulate inflammation and tissue homeostasis in health and disease. But how they integrate to the respective tissue microenvironment to perform tissue-supportive functions remain poorly defined. Here, we identify neuropilin-1, which is induced postnatally and sustained by lung-derived TGFβ1, as a tissue signature of lung ILC2s. Genetic ablation or pharmacological inhibition of Nrp1 suppresses ILC2s function and protects mice from the development of pulmonary fibrosis. Mechanistically, TGFβ1-Nrp1 signaling enhances ILC2s function and type 2 immunity through upregulation of IL-33 receptor ST2 expression. Our findings identify Nrp1 as a tissue-specific regulator of lung-resident ILC2s activation and highlight Nrp1 as a potential therapeutic target for pulmonary fibrosis

2021-10-22 | GSE168809 | GEO

Neuropilin-1 is a T cell memory checkpoint limiting long-term antitumor immunity.

Project description: Not available

| S-EPMC7442600 | biostudies-literature

Neuropilin 1 interactome in endothelial cells

Project description:To get unbiased insights on the molecular networks through by which Neuropilin 1 (NRP1) controls endothelial cell (EC) and blood vessel functions independently from its ligands, wehave implemented a Halo Tag (HT)-based approach, which enables effective surface labeling and pull-down of proteins, and combined it with quantitative mass spectrometry (MS) analysis.

2022-06-15 | PXD019700 | Pride

Nrp1 downregulation correlates with enhanced ILC2 responses during IL-33 challenge

Project description:Group 2 innate lymphoid cells (ILC2s) play critical roles in driving the pathogenesis of allergic airway inflammation. The mechanisms underlying the regulation of ILC2s remain to be fully understood. Here, we identified neuropilin-1 (Nrp1) as a surface marker of ILC2s in response to IL-33 stimulation. Nrp1 was abundantly expressed in ILC2s from lung under steady state, which was significantly reduced upon IL-33 stimulation. ILC2s with high expression of Nrp1 (Nrp1high) displayed lower response to IL-33, as compared with Nrp1low ILC2s. Transcriptional profiling and flow cytometric analysis showed that downregulation of AKT-mTOR signaling participated in the diminished functionality of Nrp1high ILC2s. These observations revealed a potential role of Nrp1 in ILC2s responses under allergic inflammatory condition.

2023-09-30 | GSE243540 | GEO

Neuropilin-1 high monocytes protect against neonatal inflammation

Project description:Neonates are susceptible to inflammatory disorders such as necrotizing enterocolitis (NEC) due to their immature immune system. The timely appearance of regulatory immune cells in early life contributes to the control of inflammation in neonates, the underlying mechanisms of which remain poorly understood. In this study, we identified a subset of neonatal monocytes characterized with high levels of neuropilin-1 (Nrp1), termed Nrp1 high monocytes. Nrp1high monocytes displayed potent immunosuppressive activity as compared with their Nrp1low counterpart. Nrp1 deficiency in myeloid cells aggravated the severity of NEC, whereas adoptive transfer of Nrp1 highmonocytes led to remission of NEC. Mechanistic studies showed that Nrp1, via binding to its ligand Sema4a, induced intracellular p38-MAPK/mTOR signaling and activated the transcription factor KLF4. KLF4 transactivated Nos2 and enhanced the production of nitric oxide (NO), a key mediator of immunosuppression in monocytes. These observations uncover an important immunosuppressive axis in neonatal monocytes and provide a potential therapeutic strategy for inflammatory disorders in neonates.

2024-04-12 | GSE263510 | GEO

Neuropilin-1 is Required for the Suppressive Function of Human Regulatory T Cells

Project description:Regulatory T cells (Tregs), lymphocytes that suppress immunological reactions, are of great interest for our comprehension of homeostasis and regulation in the immune system and as a therapeutic target in the treatment of both immune-mediated pathologies and reactivation of the immune response in patients with cancer. Understanding the molecular mechanisms by which these cells are regulated in respone to their environment will help to inform clinical strategies targeting Tregs. We hypothesised that Neuropilin-1, a transmembrane co-receptor for ligands of the semaphorin and growth factor families, promotes the suppressive function of human Tregs. Utilising in vitro lentivirus-mediated transduction with shRNA to knock down neuropilin-1 in primary human Tregs, we demonstrated that neuropilin-1 knockdown Tregs were severely impaired in their capacity to suppress cell proliferation in vitro and in their ability to prolong allograft survival in a humanised mouse model of transplantation. While neuropilin-1-KD Tregs exhibited no defects in survival, proliferation and activation upon stimulation in vitro, we hypothesised that loss of NRP1 expression would alter the global gene expression profile of human Tregs, revealing a NRP1-dependent Treg-associated transcriptional signature.

2019-01-01 | GSE106932 | GEO

Comparison of Splenic Nrp1- and Nrp1+ Treg Populations

Project description:To compare subpopulations of Treg cells in wild type mice based upon Nrp1 Expression, differentiating nTreg and iTreg Cells were FACS sorted based upon expression of CD4, Foxp3 and expression of Nrp1.

2012-08-30 | E-GEOD-40441 | biostudies-arrayexpress

Genome-wide analysis reveals NRP1 as a critical HIF1-E2F7 target gene in the regulation of motorneuron guidance in vivo

Project description:HIF1 is essential for regulation of the transcriptional response to hypoxia. Recently we showed that the transcriptional repressors E2F7 and E2F8 interact and transcriptionally cooperate with HIF1. Here we further explored this cooperation by performing genome-wide analysis, screening for novel HIF1-E2F7 targets. We show that specifically E2F7 is induced in hypoxia by HIF1. Furthermore, chip-sequencing for E2F7 and HIF1 revealed a large number of common targets of which a subset was also regulated by the complex as examined by microarray analysis. Our data show that the HIF1-E2F7 complex can function both as a repressor or activator. Notably, we identify neuropilin 1 (NRP1) as a novel HIF1-E2F7 target, which is repressed by HIF1-E2F7 in vitro and during zebrafish development, depending on E2F-binding sites present in the NRP1 promoter. In addition we show that regulation of NRP1 by the HIF1-E2F7 complex is required for normal axon guidance of spinal motorneurons in vivo. ChIP-seq analysis of HIF1a and E2F7 binding

2015-12-11 | E-GEOD-66956 | biostudies-arrayexpress

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