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NIK-Driven IL-23 Production by Myeloid Cells is a Key Factor in the Development of Autoimmune Inflammation [16S rRNA-seq]

ABSTRACT: This study investigates the role of NF-κB inducing kinase (NIK) in myeloid cells during the development of experimental autoimmune encephalomyelitis (EAE). While NIK expression in circulating myeloid cells was found to be crucial for EAE pathogenesis, influencing T cell priming and IL-23 production, we sought to determine if these effects were mediated by alterations in the gut microbiota. To test this, we performed 16S rRNA gene sequencing on faecal samples from NIKfl/fl and NIK^CX3CR1 mice. Our results showed no significant differences in microbial composition between genotypes, indicating that the observed immune phenotype is independent of steady-state changes in the gut microbiome.

ORGANISM(S): feces metagenome

PROVIDER: GSE318004 | GEO | 2026/02/16

REPOSITORIES: GEO

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NIK-Driven IL-23 Production by Myeloid Cells is a Key Factor in the Development of Autoimmune Inflammation [scRNA-seq]

Project description:We have employed a single cell sequencing approach with BD Rhapsody to study the differences within myeloid cells in the draining lymph nodes four days after MOG immunisation between NIKfl/fl control mice and NIK^CX3CR1 mice

2026-02-16 | GSE285714 | GEO

NIK expression stimulated G6PD phosphorylation

Project description:Our findings establish NIK as a pivotal regulator of T cell metabolism in anti-tumor immunity and highlight a posttranslational mechanism of metabolic regulation involving the G6PD-NADPH redox system. CoIP assays revealed a strong physical interaction between NIK and G6PD in both T cells and transiently transfected 293 cells, suggesting G6PD to be a direct target of NIK. Using a phosphoprotein gel analysis approach, we demonstrated that NIK expression stimulated G6PD phosphorylation. To further study the mechanism, we performed mass spectrometry identify phosphorylation sites of G6PD stimulated by NIK

2020-10-05 | PXD020943 | Pride

Microbiota configuration dictates nutritional immune optimization [16s rRNA-seq]

Project description:Mild or transient dietary restriction (DR) improves many aspects of health and aging. Emerging evidence from us and others has demonstrated that DR also optimizes the development and quality of immune responses. However, the factors and mechanisms involved remain to be elucidated. Here, we demonstrate that DR-induced optimization of immunological memory requires co-operation between memory T cells, the intestinal microbiota, and myeloid cells. Our data indicate that DR enhances the ability of memory T cells to recruit and activate myeloid cells in the context of a secondary infection. Concomitantly, DR promotes expansion of the commensal Bifidobacteria within the large intestine, which supplies the short-chain fatty acid acetate to myeloid cells. Acetate conditioning of the myeloid compartment during DR enhances their capacity to kill pathogens. Enhanced host protection during DR is abolished when Bifidobacteria expansion is prevented, indicating that microbiota configuration and function critically dictates immune responsiveness to this dietary intervention. Altogether, DR induces both memory T cells and the gut microbiota to produce essential, distinct factors that converge on myeloid cells to promote optimal pathogen control. These findings reveal how nutritional cues promote adaptation and co-operation between multiple immune cells and the gut microbiota, which synergize to optimize immunity and protect the collective metaorganism.

2023-12-13 | GSE242696 | GEO

16S rDNA sequencing of BALB/c and C57BL/7 mouse gut microbiomes

Project description:Age-dependent changes of the gut-associated microbiome have been linked to increased frailty and systemic inflammation. This study found that age-associated changes of the gut microbiome of BALB/c and C57BL/6 mice could be reverted by co-housing of aged (22 months old) and adult (3 months old) mice for 30-40 days or faecal microbiota transplantation (FMT) from adult into aged mice. This was demonstrated using high-throughput sequencing of the V3-V4 hypervariable region of bacterial 16S rRNA gene isolated from faecal pellets collected from 3-4 months old adult and 22-23 months old aged mice before and after co-housing or FMT.

2019-05-08 | E-MTAB-7750 | biostudies-arrayexpress

NF-κB-Inducing Kinase (NIK) Governs the Mitochondrial Respiratory Capacity, Differentiation, and Inflammatory Status of Innate Immune Cells

Project description:NF-κB-Inducing Kinase (NIK), which is essential for the activation of the noncanonical NF-κB pathway, regulates diverse processes in immunity, development, and disease. While recent studies have elucidated important functions of NIK in adaptive immune cells and cancer cell metabolism, the role of NIK in metabolic-driven inflammatory responses in innate immune cells remains unclear. Here we demonstrate that NIK-deficient bone marrow-derived macrophages exhibit defects in mitochondrial-dependent metabolism and oxidative phosphorylation (OXPHOS) functions that impair acquisition of a pro-repair, anti-inflammatory phenotype. Subsequently, NIK-deficient mice exhibit skewing of myeloid cells characterized by aberrant eosinophil, monocyte, and macrophage cell populations in the blood, bone marrow, and adipose tissue. Furthermore, NIK-deficient blood monocytes display hyperresponsiveness to bacterial lipopolysaccharide and elevated TNFα production ex vivo, indicative of systemic inflammation. These findings suggest that NIK is required for the metabolic rewiring of mitochondrial respiration that is critical for balancing pro- and anti-inflammatory myeloid immune cell functions. Overall, our work highlights a previously unrecognized role for NIK as a molecular rheostat that fine-tunes immunometabolism in innate immunity and suggests that metabolic dysfunction may be an important driver of inflammatory diseases caused by aberrant NIK expression or activity.

2023-01-20 | GSE223040 | GEO

Comparasion between MCF7-NIK overexpressing cells, MCF7-control cells and MCF7-NIK depleted cells

Project description:Analysis of differentially expressed genes in MCF7 cancer cells transfected with an expression vector containing the ORF of NIK, a shRNA of NIK and a control shRNA. Transient transfections were performed in triplicates . We use micorarrays to elucidate the machanisms by which NIK regulates stem cells biology

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RNA-seq Analysis of Transcriptomes in β-Gal-overexpressing, NIK-overexpressing, and NIK(KA)-overexpressing αTC1-6 cells

Project description:Purpose: The goal of this study is to determine the molecular mechanisms involved in the NIK regulation of α cell function. Methods: mRNA profiles of β-Gal control, NIK, and NIK(KA) overexpressed αTC1-6 cells were generated by deep sequencing using an Illumina Hiseq platform. Paired-end clean reads were aligned to the mouse reference genome(Ensemble_GRCm38.89) with TopHat (version 2.0.12), and the aligned reads were used to quantify mRNA expression by using HTSeq-count (version 0.6.1). Conclusion: Our study represents the first detailed analysis of NIK-overexpressing aTC1-6 cell transcriptomes, generated by RNA-seq technology. Our results show that 328 genes were upregulated and 48 genes were downregulated following NIK overexpression. GO analysis indicated that the upregulated genes were primarily related to the immune response. KEGG pathway enrichment analysis showed that immune signaling pathways, including the TNF, NF-κB, and chemokine signaling pathways, were significantly activated by NIK overexpression in aTC1-6 cells, while genes related to metabolism-associated signal pathways were significantly decreased. NIK(KA), the dominant-negative mutant of NIK, does not affect gene expression in aTC1-6 cells.

2018-12-30 | GSE112511 | GEO

NIK/NF-kappaB2 regulated gene products.

Project description:This study aims at identifying genes that are NIK/NF-kappaB2 responsive in murine dendritic cells matured in vivo. Keywords: NIK/NF-kappaB2 responsive genes in dendritic cells after TLR/CD40 signaling

2008-03-05 | GSE7219 | GEO

RNA-seq analysis of mRNA profiles in β-Gal-overexpressing, NIK-overexpressing, and NIK(KA)-overexpressing INS-1 832/13 cells

Project description:Purpose: The goal of this study is to investigate how NIK regulates islet β-cell function. Methods: mRNA profiles of β-Gal-overexpressing, NIK-overexpressing, and NIK(KA)-overexpressing INS-1 832/13 cells were generated by deep sequencing using an Illumina Hiseq platform. Paired-end clean reads were aligned to the rat reference genome (ftp://ftp.ensembl.org/pub/release-90/fasta/rattus_norvegicus/dna/) with TopHat (version 2.0.12), and the aligned reads were used to quantify mRNA expression by using HTSeq-count (version 0.6.1). Conclusion: Our study represents the first detailed analysis of mRNA profiles in NIK-overexpressing and NIK(KA)-overexpressing INS-1 832/13 cells, generated by RNA-seq technology. Our results show that 471 genes were upregulated and 249 genes were downregulated following NIK overexpression. GO analysis indicated that the upregulated genes were primarily related to the immune response. KEGG pathway enrichment analysis showed that immune signaling pathways, including the TNF, NF-κB, antigen processing and presentation signaling pathways, were significantly activated by NIK overexpression in INS-1 832/13 cells, whereas genes related to insulin secretion and regulation of secretion were significantly decreased. NIK(KA), the dominant-negative mutant of NIK, does not induce the expression of genes related to immune response in INS-1 832/13 cells.

2020-07-28 | GSE130121 | GEO

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Project description:To explore the bacterial community profile of the gut of the African palm weevil and to identify the abundance and diversity of lignin degradation-associated bacteria in each gut segment.

2025-01-01 | E-MTAB-13719 | biostudies-arrayexpress

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