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Investigating the noncanonical Nfkb2 pathway regulation of gene expression in modulating dendritic cell function.

ABSTRACT: Investigating the noncanonical Nfkb2 pathway regulation of gene expression in modulating dendritic cell function.

PROVIDER: PRJNA1047164 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR27007280_1.fastq.gz	Fastqsanger.gz
	SRR27007280_2.fastq.gz	Fastqsanger.gz
	SRR27007281_1.fastq.gz	Fastqsanger.gz
	SRR27007281_2.fastq.gz	Fastqsanger.gz
	SRR27007282_1.fastq.gz	Fastqsanger.gz

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Investigating the noncanonical Nfkb2 pathway regulation of gene expression in modulating dendritic cell function.

Project description:Dendritic cells (DCs) orchestrate intestinal inflammation in health and diseases. We found that human IBD was associated with heightened non-canonical NF-κB signaling in intestinal DCs. The non-canonical NF-κB pathway, which induces RelB:p52-mediated immune gene expressions, has been implicated in DC functions and that genetic inactivation of RelB:p52 in DCs alleviated experimental colitis in mice. Here, we aim to investigate the regulation of gene expression by noncanonical Nfkb2 pathway in modulating DC function.

2024-06-11 | GSE249101 | GEO

TNF-induced gene-expressions in Nfkb2-/- MEFs and its derivatives

Project description:As such, TNF triggers the canonical NF-?B pathway to induce a nuclear NF-?B activity composed of the RelA:p50 dimer in WT cells. Nfkb2 encodes p100, which regulates the activity of the RelB NF-?B heterodimers during immune cell-differentiation via the noncanonical pathway. Our biochemical analyses revealed that an absence of p100 instead repositions RelB under the control of the TNF-activated canonical pathway. Indeed, chronic TNF treatment of Nfkb2-/- cells activates the RelA:p50 dimer and an additional RelB:p50 dimer. On the other hand, TNF stimulation of Relb-/-Nfkb2-/- and Rela-/-Nfkb2-/- MEFs exclusively activated the RelA:p50 dimer and the RelB:p50 dimer, respectively. We treated this panel of knockout MEFs with TNF for 6h before being subjected to microarray mRNA analysis. We also included in our analysis WT MEFs and Rela-/-Relb-/-Rel-/- MEFs, which served as a negative control. Our analyses revealed overlapping and distinct gene-expression specificities of RelA:p50 and RelB:p50 dimers activated in mutant cells in response to TNF.

2019-06-13 | GSE99980 | GEO

An epithelial Nfkb2 pathway exacerbates intestinal inflammation by supplementing latent RelA complexes to the canonical NF-kB module

Project description:The canonical NF-kB module induces nuclear translocation of RelA heterodimers from the latent cytoplasmic complexes. RelA directs inflammatory immune responses against microbial entities. However, aberrant RelA activity also triggers destructive inflammation, including those associated with inflammatory bowel disease (IBD). What provokes this pathological RelA activity remains unclear. As such, the noncanonical NF-kB pathway activates RelB heterodimers and mediates immune organogenesis. Because NF-kB-activating pathways are interlinked, we asked if noncanonical NF-kB signaling exacerbated intestinal inflammation. Our investigation revealed recurrent engagement of the noncanonical pathway in human IBD. In a mouse model of chemical colitis, the noncanonical NF-kB signaling gene Nfkb2 aggravated inflammation by amplifying the RelA activity induced in intestinal epithelial cells. Our mechanistic studies clarified that noncanonical signaling augmented the abundance of latent RelA complexes leading to hyperactive canonical NF-kB response in the colitogenic gut. In sum, latent dimer homeostasis appears to link noncanonical NF-kB signaling to RelA-driven inflammatory pathologies.

2021-07-07 | GSE148577 | GEO

NFKB1 and NFKB2 differently modulate transcriptional profile of MT-2 cells

Project description:To investigate the effects of NFKB signaling, RNA-seq analysis was performed on both Jurkat and MT-2 cells. It was observed that either NFKB1 or NFKB2 knockout could alter the gene expression profile in MT-2 cells compared to Jurkat cells. Gene expression profiles of NFKB1/NFKB2 knockout Jurkat cells were compared to the mock edited Jurkat cells. On the other hand, it was hypothesized that the gene expression profile of MT-2 cells can be more drastically altered by NFKB1 or NFKB2 knockout. NFKB2 knockout MT-2 cells exhibited a unique gene expression profile compared to those of NFKB1 knockout MT-2 cells and mock edited MT-2 cells.

2023-11-01 | E-MTAB-13408 | biostudies-arrayexpress

NFKB2 mediates colorectal cancer cell immune escape and metastasis in a STAT2/PD-L1-dependent manner

Project description:This study systematically analyzed the molecular mechanism and function of nuclear factor kappa B subunit 2 (NFKB2) in colorectal cancer (CRC) to investigate the potential of NFKB2 as a therapeutic target for CRCTo investigate the potential of NFKB2 as a therapeutic target for colorectal cancer (CRC), we conducted a systematic analysis of the molecular mechanism and function of NFKB2 in CRC. VariousA range of experimental techniques, including RNA sequencing, proteome chip assays, and small molecule analysis, were used to obtaingain a deeper understanding of the regulation of NFKB2 in CRC. TheOur results revealed that NFKB2 was upregulated in a significant proportion of patients with advanced hepatic metastasismetastases of CRC. NFKB2 played an importanta role in promoting tumor growth through CD8+ T cell exhaustion. MoreoverAdditionally, NFKB2 directly interacted with signal transducer and activator of transcription 2 (STAT2)STAT2, leading to increased phosphorylation of STAT2 and the upregulation of programmed death ligand 1 (PD-L1)PD-L1 expression. Applying aThe application of a small molecule inhibitor of NFKB2 (Rg5) led to a reduction in PD-L1 expression and improved response to programmed death-1 (PD-1)PD-1 blockade-based immunotherapy. In conclusion,These findings suggest that the facilitated NFKB2-STAT2/PD-L1 axis may suppresses immune surveillance in CRC and targeting NFKB2 maycould enhance the efficacy of immunotherapeutic strategies. Our resultsThis study provides novel insights into the molecular mechanisms underlying the contribution of NFKB2 in CRC immune escape. However, our findings requireand further validation of these findings in a clinical trial is needed to establish NFKB2 inhibition as a therapeutic strategy for CRC patients.

2023-12-21 | GSE250065 | GEO

NFKB2 in PDAC

Project description:Role of NFKB2 in pancreatic ductal adenocarcinama (PDAC)

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Noncanonical MAVS signaling restrains dendritic cell-driven antitumor immunity by inhibiting IL-12

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Nfkb2 deficiency and its impact on the murine small intestinal mucosa

Project description:The alternative (non-canonical) nuclear factor-kappa B (NF-κB) signalling pathway predominantly regulates the function of the p52/RelB heterodimer. Germline Nfkb2 deficiency in mice leads to loss of p100/p52 protein and offers protection against a variety of gastrointestinal conditions, such as azoxymethane/dextran sulfate sodium (DSS)-induced colitis-associated cancer and lipopolysaccharide (LPS)-induced small intestinal epithelial apoptosis. However, the common underlying protective mechanisms are not yet fully understood. Here we applied RNA sequencing and identified a B-lymphocyte defect as the major signature in the small intestinal mucosa of naïve adult Nfkb2-/- mice. Proteomics analysis also revealed a dramatic decrease in small intestinal immunoglobulin A levels, and this was validated by quantitative ELISA in both small intestinal lysates and serum. Moreover, the numbers of IgA-producing, CD138+ve plasma cells were also reduced in the lamina propria of the small intestinal villi of Nfkb2-/- mice. This phenotype was even more striking in the small intestinal mucosa of RelB-/- mice, although these mice were equally sensitive to LPS-induced intestinal apoptosis as their RelB+/+ wild-type counterparts. Therefore, p52 deficiency offers resistance to LPS-induced intestinal apoptosis and appears to regulate the plasma cell population within the gut.

2022-07-31 | E-MTAB-11018 | biostudies-arrayexpress

Aldolase A Accelerates Cancer Progression by Modulating mRNA Translation and Protein Biosynthesis via Noncanonical Mechanisms

Project description:Aldolase A Accelerates Cancer Progression by Modulating mRNA Translation and Protein Biosynthesis via Noncanonical Mechanisms

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Genome-wide differential binding pattern of NFKB2/p52 under prolonged culture conditions

Project description:We report the application of ChIP-Seq analysis for high-throughput profiling of NFKB2/p52 binding pattern under prolonged culture conditions. Briefly, we investigate the genome wide binding behavior of endogenous p52 in WI-38 cells. The cells was cultured with regular DMEM medium for prolonged time (7 days). Chromatin immunoprecipitated DNA was converted to libraries for sequencing with HiSeq 4000. We find that there is a distinct binding pattern of p52 under prolonged culture condtion. This study provides a preliminary but solid basis to our understanding of NFKB2/p52 binding dynamics during aging process.

2022-04-13 | GSE182248 | GEO

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