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Group-2 Innate Lymphoid Cells Promote Hepatocellular Carcinoma Progression via CXCL2-Neutrophil Induced Immunosuppression

ABSTRACT: Group-2 Innate Lymphoid Cells Promote Hepatocellular Carcinoma Progression via CXCL2-Neutrophil Induced Immunosuppression

PROVIDER: PRJNA637600 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11935256_1.fastq.gz	Fastqsanger.gz
	SRR11935256_2.fastq.gz	Fastqsanger.gz
	SRR11935257_1.fastq.gz	Fastqsanger.gz
	SRR11935257_2.fastq.gz	Fastqsanger.gz
	SRR11935258_1.fastq.gz	Fastqsanger.gz

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Group-2 Innate Lymphoid Cells Promote Hepatocellular Carcinoma Progression via CXCL2-Neutrophil Induced Immunosuppression

Project description:We report a tissue-derived KLRG1-ILC2s highly expressing CD69 in HCC, which are distinguished from circulating ones from portal vein and peripheral blood. Relief of KLRG1 inhibitory signaling, the HCC-induced ILC2s tend to shape an immunosuppressive tumor microenvironment through CXCL2/neutrophil axis. Furthermore, the abundance of ILC2s in HCC correlated with the recurrence and progression free survival (PFS) of HCC patients indicated ILC2s being an emerging target for HCC immunotherapy.

2021-11-24 | GSE151895 | GEO

Group-2 Innate Lymphoid Cells Promote HCC Progression Through CXCL2-Neutrophil-Induced Immunosuppression.

Project description:Background and aimsDue to their inherent characteristics, the function of group-2 innate lymphoid cells (ILC2s) varies in a context-dependent manner. ILC2s are involved in certain liver diseases; however, their involvement in HCC is unknown. In the present study, we assessed the role of an HCC-derived ILC2 population in tumor progression.Approach and resultsThrough FACS and single-cell RNA sequencing, we discovered that ILC2s were highly enriched in human HCC and correlated significantly with tumor recurrence and worse progression-free survival as well as overall survival in patients. Mass cytometry identified a subset of HCC-derived ILC2s that had lost the expression of killer cell lectin-like receptor subfamily G, member 1 (KLRG1). Distinct from their circulating counterparts, these hepatic ILC2s highly expressed CD69 and an array of tissue resident-related genes. Furthermore, reduction of E-cadherin in tumor cells caused the loss of KLRG1 expression in ILC2s, leading to their increased proliferation and subsequent accumulation in HCC sites. The KLRG1- ILC2 subset showed elevated production of chemotaxis factors, including C-X-C motif chemokine (C-X-C motif) ligand (CXCL)-2 and CXCL8, which in turn recruited neutrophils to form an immunosuppressive microenvironment, leading to tumor progression. Accordingly, restoring KLRG1 in ILC2s, inhibiting CXCL2 in ILC2s, or depleting neutrophils inhibited tumor progression in a murine HCC model.ConclusionsWe identified HCC-associated ILC2s as an immune regulatory cell type that promotes tumor development, suggesting that targeting these ILC2s might lead to new treatments for HCC.

| S-EPMC8597094 | biostudies-literature

Marked alterations of neutrophil functions during sepsis-induced immunosuppression

Project description:Background: Severe septic syndromes deeply impair innate and adaptive immunity. While neutrophils represent the first line of defense against infection, little is known about their phenotype and functions during sepsis-induced immunosuppression. The objective of this study was thus to perform for the first time a global evaluation of neutrophil alterations in immunosuppressed septic patients based on phenotypic, functional and transcriptomic studies. In addition, the potential association of these parameters and deleterious outcomes was assessed. Methods: Peripheral blood was collected from 9 septic shock patients at D3-4 and D6-8 presenting with features of sepsis-induced immunosuppression and compared to 8 healthy controls. Results: In order to get on overview of potential neutrophil alterations after sepsis, we performed transcriptomic analyses on purified neutrophils from 9 septic shock patients and 8 healthy volunteers. For each time point, comparisons were made between patients and controls. Venn diagrams indicated that 364 up-regulated genes and 328 down-regulated genes were common between the two analyses (Supplementary Tables 1 and 2). Interestingly, most of the differentially expressed genes are involved in cell maturation (CD177), apoptosis (STK4, Caspase 8), cell recruitment and chemotaxis (CD44, TPST, MMP9, CREB1), and antimicrobial properties (ARG1, STOM, ADAM9, CD63, YKL40) of neutrophils. Conclusions: The aim of the current study was to perform an extensive investigation of neutrophil alterations during sepsis-induced immunosuppression through phenotypic, functional and transcriptomic studies. Notably, transcriptomic study on purified neutrophils revealed differentially expressed genes between septic patients and healthy volunteers.

2015-12-28 | GSE64457 | GEO

IRF-8 extinguishes neutrophil production and promotes dendritic cell lineage commitment in both myeloid and lymphoid progenitors

Project description:This SuperSeries is composed of the following subset Series: GSE34892: IRF-8 extinguishes neutrophil production and promotes dendritic cell lineage commitment in both myeloid and lymphoid progenitors (Affymetrix). GSE34915: IRF-8 extinguishes neutrophil production and promotes dendritic cell lineage commitment in both myeloid and lymphoid progenitors (Illumina). Refer to individual Series

2012-01-07 | E-GEOD-34917 | biostudies-arrayexpress

Staphylococcus aureus infection induces the production of the neutrophil chemoattractants CXCL1, CXCL2, CXCL3, CXCL5, CCL3, and CCL7 by osteoblasts

Project description:Staphylococcus aureus is the principal causative agent of osteomyelitis, a serious bacterial infection of bone that is associated with progressive inflammatory damage. Bone-forming osteoblasts have increasingly been recognized to play an important role in the initiation and progression of detrimental inflammation at sites of infection, and have been demonstrated to release an array of inflammatory mediators and factors that promote osteoclastogenesis and leukocyte recruitment following bacterial challenge. In the present study, we describe elevated bone tissue levels of the potent neutrophil-attracting chemokines, CXCL1, CXCL2, CXCL3, CXCL5, CCL3, and CCL7, in a murine model of post-traumatic staphylococcal osteomyelitis. RNA-Seq gene ontology analysis of isolated primary murine osteoblasts showed enrichment in differentially expressed genes involved in cell migration and chemokine receptor binding and chemokine activity following S. aureus infection, and a rapid increase in the expression of mRNA encoding CXCL1, CXCL2, CXCL3, CXCL5, CCL3, and CCL7, in these cells. Importantly, we have confirmed that such upregulated gene expression results in protein production with the demonstration that S. aureus challenge elicits the rapid and robust release of these chemokines by osteoblasts and does so in a bacterial dose-dependent manner. Furthermore, we have confirmed the ability of soluble osteoblast-derived chemoattractants to elicit the migration of a neutrophil-like cell line. As such, these studies demonstrate the robust production of CXCL1, CXCL2, CXCL3, CXCL5, CCL3, and CCL7, by osteoblasts in response to S. aureus infection, and the release of such neutrophil-attracting chemokines provides an additional mechanism by which osteoblasts could drive the inflammatory bone loss associated with staphylococcal osteomyelitis.

2022-11-12 | GSE217455 | GEO

Hypoxia-reprogrammed regulatory group 2 innate lymphoid cells promote immunosuppression in pancreatic cancer

Project description:Hypoxia-reprogrammed regulatory group 2 innate lymphoid cells promote immunosuppression in pancreatic cancer

| PRJNA807345 | ENA

lnc-Cxcl2 suppressed Cxcl2 expression in mouse lung epithelial cells

Project description:In this study, we performed RNA-seq in GFP-VSV infected mouse lung epithelial cell lines (MLE-12 cells) and found that the expression of a non-coding RNA was increased upon VSV infection in Cxcl2 locus, which we termed it as lnc-Cxcl2. We further detected the function of lnc-Cxcl2 by performing transcriptome analysis in lnc-Cxcl2-deficient MLE-12 cells with and without VSV infection, and found that lnc-Cxcl2 suppressed Cxcl2 expression in MLE-12 cells with and without VSV infection.

2021-09-26 | GSE156949 | GEO

Hypoxia-reprogrammed regulatory group 2 innate lymphoid cells promote immunosuppression in pancreatic cancer [ILC2]

Project description:Hypoxia-reprogrammed regulatory group 2 innate lymphoid cells promote immunosuppression in pancreatic cancer [ILC2]

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lnc-Cxcl2 suppressed Cxcl2 expression in mouse lung epithelial cells

Project description:lnc-Cxcl2 suppressed Cxcl2 expression in mouse lung epithelial cells

| PRJNA659645 | ENA

KDM4C silencing inhibits cell migration and enhances radiosensitivity by upregulating CXCL2 in hepatocellular carcinoma

Project description:KDM4C, a histone lysine demethylase, has been proposed to participate in malignant transformation and progression in several types of cancer. However, its roles in hepatocellular carcinoma (HCC) remain poorly understood. In this study, we report that KDM4C protein level is upregulated and KDM4C silencing inhibits cell growth, proliferation and migration in HCC. Furthermore, we provide evidence that depletion of KDM4C leads to defective G2/M checkpoint, increases radiation-induced DNA damage and impairs DNA repair, and enhances radiosensitivity in HCC cells. Using RNA sequencing, we uncover that chemokine CXCL2 is a downstream effector of KDM4C. KDM4C knockdown upregulates the expression of CXCL2 and promotes the secretion of CXCL2 in HCC cells. Importantly, the observed effects caused by KDM4C depletion in HCC cells can be partially rescued by CXCL2 silencing. Thus, our findings demonstrate that KDM4C is involved in the cell migration and radiosensitivity via modulating CXCL2, indicating that KDM4C may be a potential therapeutic target in HCC.

2023-05-03 | GSE189941 | GEO

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