An Intraepithelial ILC1-like Natural Killer Cell Subset Produces IL-13
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ABSTRACT:
PROVIDER: PRJNA1225247 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR32383947_1.fastq.gz | Fastqsanger.gz | |||
| SRR32383947_2.fastq.gz | Fastqsanger.gz | |||
| SRR32383948_1.fastq.gz | Fastqsanger.gz | |||
| SRR32383948_2.fastq.gz | Fastqsanger.gz | |||
| SRR32383949_1.fastq.gz | Fastqsanger.gz |
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Project description:Natural killer (NK) cells are innate immune effectors with considerable heterogeneity and potent antitumor capabilities. Intraepithelial ILC1 (ieILC1)-like NK cells, a population of cytotoxic tissue-resident innate lymphoid cells, have recently been documented in the microenvironment of head and neck squamous cell carcinomas (HNSCC) and other solid tumors. These cells have antitumor cytolytic potential and are potent producers of type 1 cytokines, including IFNy. Here, we identify a subpopulation of ex vivo differentiated ieILC1-like NK cells that produce IL-13 upon stimulation. Functional characterization revealed that these cells co-expressed IFNy and IL-13 while maintaining an ILC1 transcriptional signature. IL-13 was induced either upon co-culture with tumor cell lines, or in response to TGF-B and IL-15. IL-13-expressing ieILC1-like NK cells were identified among tumor infiltrating lymphocytes expanded from patient HNSCC tumors, in support of their existence in primary tumors. These data demonstrate additional heterogeneity within the ieILC1-like NK cell population than previously appreciated and highlight a unique form of ILC plasticity in which cells with clear ILC1 transcriptional profiles express a type 2 cytokine. With the known roles of IL-13 in cancer cell growth dynamics and immunoregulation, the identification of this subset within tumor microenvironments presents a potential target for therapeutic manipulation.
2025-03-06 | GSE289886 | GEO
Project description:Natural killer (NK) cells are innate immune effectors with considerable heterogeneity and potent antitumor capabilities. Intraepithelial ILC1 (ieILC1)-like NK cells, a population of cytotoxic tissue-resident innate lymphoid cells, have recently been documented in the microenvironment of head and neck squamous cell carcinomas (HNSCC) and other solid tumors. These cells have antitumor cytolytic potential and are potent producers of type 1 cytokines, including IFNγ. Here, we identify a subpopulation of ex vivo differentiated ieILC1-like NK cells that produce IL-13 upon stimulation. Functional characterization revealed that these cells co-expressed IFNγ and IL-13 while maintaining an ILC1 transcriptional signature. IL-13 was induced either upon co-culture with tumor cell lines, or in response to TGF-β and IL-15. IL-13-expressing ieILC1-like NK cells were identified among tumor infiltrating lymphocytes expanded from patient HNSCC tumors, in support of their in vivoexistence in primary tumors. These data demonstrate additional heterogeneity within the ieILC1-like NK cell population than previously appreciated and highlight a unique form of ILC plasticity in which cells with clear ILC1 transcriptional profiles express a type 2 cytokine. With the known roles of IL-13 in cancer cell growth dynamics and immunoregulation, the identification of this subset within tumor microenvironments presents a potential target for therapeutic manipulation.
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Project description:Innate lymphoid cell (ILC) subsets that mirror helper T cells in their effector cytokine profiles have recently emerged as central players in both homeostatic and inflammatory conditions. Like their Th1, Th2 and Th17/Th22 helper T cell counterparts, ILC subsets are categorized based on their expression of specific transcription factors and effector cytokines: group 1 ILC (ILC1) express T-bet and IFN-γ; group 2 ILC (ILC2) express GATA-3 and type 2 effector cytokines such as IL-13 and IL-5; and group 3 ILC (ILC3) express RORgt and the cytokines IL-22 and/or IL-17. Under this nomenclature, natural killer (NK) cells and lymphoid tissue inducers (LTi) are considered ILC1 and ILC3, respectively. ILC1 contain both CD4+ and CD4- populations, but whether this phenotypic characteristic reflects functional differences between these two populations is unknown. These studies examine the gene expression profiles of CD4+ vs CD4- ILC1 in a cohort of healthy control subjects. ILC subsets were isolated from the peripheral blood of healthy control subjects. cDNA was isolated and amplified from sorted populations, and gene expression was analyzed by RNAseq
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Project description:Innate lymphoid cell (ILC) subsets that mirror helper T cells in their effector cytokine profiles have recently emerged as central players in both homeostatic and inflammatory conditions. Like their Th1, Th2 and Th17/Th22 helper T cell counterparts, ILC subsets are categorized based on their expression of specific transcription factors and effector cytokines: group 1 ILC (ILC1) express T-bet and IFN-γ; group 2 ILC (ILC2) express GATA-3 and type 2 effector cytokines such as IL-13 and IL-5; and group 3 ILC (ILC3) express RORgt and the cytokines IL-22 and/or IL-17. Under this nomenclature, natural killer (NK) cells and lymphoid tissue inducers (LTi) are considered ILC1 and ILC3, respectively. ILC1 contain both CD4+ and CD4- populations, but whether this phenotypic characteristic reflects functional differences between these two populations is unknown. These studies examine the gene expression profiles of CD4+ vs CD4- ILC1 in a cohort of healthy control subjects.
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Project description:Natural killer (NK) cells and type 1 innate lymphoid cells (ILC1) require the transcription factor STAT4 to elicit rapid effector responses and protect against pathogens. Herein, by combining genetic and transcriptomic approaches, we revealed that STAT4 played an unexpected divergent role in regulating effector differentiation of murine ILC1 and NK cells, during intestinal inflammation. Stat4 deletion in Ncr1-expressing cells led to an increased generation of cytotoxic ILC1 in the inflamed large intestine. By contrast, Stat4-deficient NK cells showed impaired terminal differentiation, characterized by lower levels of IRF-8 and KLRG1. STAT4 expression in NCR+ innate lymphocytes restrained gut inflammation and controlled both systemic IFN-g levels and the number of type 2 adaptive T cells in the large intestine. Collectively our data shed light on shared and distinctive mechanisms of transcriptional regulation driven by STAT4 in NK cells and ILC1 required for protection during intestinal inflammation.
2023-09-28 | GSE210483 | GEO
Project description:Natural killer (NK) cells and type 1 innate lymphoid cells (ILC1) require the transcription factor STAT4 to elicit rapid effector responses and protect against pathogens. Herein, by combining genetic and transcriptomic approaches, we revealed that STAT4 played an unexpected divergent role in regulating effector differentiation of murine ILC1 and NK cells, during intestinal inflammation. Stat4 deletion in Ncr1-expressing cells led to an increased generation of cytotoxic ILC1 in the inflamed large intestine. By contrast, Stat4-deficient NK cells showed impaired terminal differentiation, characterized by lower levels of IRF-8 and KLRG1. STAT4 expression in NCR+ innate lymphocytes restrained gut inflammation and controlled both systemic IFN-g levels and the number of type 2 adaptive T cells in the large intestine. Collectively our data shed light on shared and distinctive mechanisms of transcriptional regulation driven by STAT4 in NK cells and ILC1 required for protection during intestinal inflammation.
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Project description:In the liver, group 1 innate lymphoid cells (ILCs) comprise 10–20% tissue-resident ILC1 cells and 80–90% conventional NK cells. Both cells contribute to early defense against virus infection by secreting IFN-γ. However, the distinct role of ILC1 cells in viral infections remains incompletely understood. Here, we identified that ILC1 cells outnumbered NK cells, constituting 80–90% of group 1 ILCs in the liver during undernutrition. Mechanistically, undernutrition significantly reduced NK cell numbers, while hepatic ILC1 cells entered a quiescent state that allowed them to survive in an mTORC1-dependent manner. Metabolically, quiescent ILC1 cells exhibited greater glucose uptake than NK cells and efficiently utilized it via oxidative phosphorylation, which was induced by mTORC1. Finally, ILC1-deficient mice succumbed to MCMV infection under undernourished conditions, but not when fed ad libitum. These findings suggest a non-redundant function of hepatic ILC1 cells in protecting the host against MCMV infection during undernutrition.
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Project description:The effect of PDGF-DD on the gene expression of human tonsil ILC1 is unknown. We used microarray to determine the transcriptional differences between unstimulated and PDGF-DD-stimulated human tonsil ILC1.
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Project description:Purpose: To understanding the effects of RORa deficiency on ILC1 cells, we conducted bulk mRNA-seqencing Method: Firstly, we purified liver ILC1 cells (CD45.2+CD3-CD19-NKp46+NK1.1+CD49a+CD49b-) via Fluorescence Activated Cell Sorting, then frozen in -80 °C ultra-low temperature refrigerator, followed by High-throughput sequencing, in three replicates for WT (Rorafl/fl) mice and one replicate for cKO (Ncr1Cre-Rorafl/fl) , using Illumina Hiseq 1500 platform.
2022-09-28 | GSE186193 | GEO
Project description:Innate and adaptive immune cells can acquire “memory” of encounters with a diverse range of activating signals to tune their response to secondary stimuli. Group 1 innate lymphoid cells (ILC1) are recently discovered tissue-resident sentinels that are essential for early host protection from intracellular pathogens at initial sites of infection. However, whether ILC1 function as short-lived effectors or persist and refine their responsiveness following pathogen challenge is not well understood. Furthermore, whether pathogen-derived antigens directly modulate tissue-resident ILC responses remains unclear. Here, we found that liver-resident ILC1 expand locally and persist following the resolution of mouse cytomegalovirus (MCMV) infection. MCMVexperienced ILC1 acquired stable transcriptional, epigenetic, and phenotypic changes, with an enhanced protective effector response to secondary MCMV challenge. Protective memory ILC1 responses were dependent on the MCMV-encoded glycoprotein m12, but not formed during bystander cytokine activation following heterologous infection. Thus, liver ILC1 acquire adaptive features in a MCMV-specific manner.
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