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Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

ABSTRACT: Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

PROVIDER: PRJNA1159204 | ENA |

REPOSITORIES: ENA

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Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

Project description:Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

| PRJNA1160875 | ENA

Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

Project description:Tissue damage and repair are hallmarks of inflammation. Despite a wealth of information on the mechanisms that govern tissue damage, mechanistic insight on how inflammation affects repair is lacking. Here, we investigated how interferons influence tissue repair after damage to the intestinal mucosa. We found that type III, not type I or II, interferons delay epithelial cell regeneration by inducing the upregulation of Z-DNA-binding protein 1 (ZBP1). Z-nucleic acids formed following intestinal damage are sensed by ZBP1, leading to Caspase-8 activation, and cleavage of Gasdermin C (GSDMC). Cleaved GSDMC drives epithelial cell death by pyroptosis and delays repair of the large or small intestine after colitis or irradiation, respectively. The type III interferon/ZBP1/Caspase-8/GSDMC axis is also active in patients with inflammatory bowel disease (IBD). Our findings highlight the capacity of type III interferons to delay gut repair, which has important implications for IBD patients or individuals exposed to radiation therapies.

2024-11-01 | GSE277150 | GEO

Type III interferons induce pyroptosis in gut epithelial cells and impair tissue repair upon intestinal injury.

Project description:Tissue damage and repair are hallmarks of the inflammatory process. Despite a wealth of information on the mechanisms that govern tissue damage, mechanistic insight on how inflammatory mediators affect repair is lacking. Here, we investigated how interferons influence tissue repair after damage to the intestinal mucosa driven by inflammation or genotoxicity. We found that type III, but not type I or II, interferons delay epithelial cell regeneration by inducing the upregulation of Z-DNA-binding protein 1 (ZBP1). Z-nucleic acids formed during the damage and repair process are then sensed by ZBP-1, leading to Caspase-8 activation, and cleavage of Gasdermin C (GSDMC). Cleaved GSDMC drives epithelial cell death by pyroptosis and delays the re-epithelialization of the large or small intestine after colitis or irradiation, respectively. We also found that the type III interferon/ZBP1/Caspase-8/GSDMC pathway is activated in patients with inflammatory bowel disease (IBD). Our findings highlight a molecular signaling cascade initiated by type III interferons that delays intestinal tissue repair, which has important implications for IBD patients or individuals exposed to radiation therapies.

2024-11-01 | GSE276837 | GEO

Type III interferons induce pyroptosis in gut epithelial cells and delay tissue restitution upon acute intestinal injury.

Project description:Type III interferons induce pyroptosis in gut epithelial cells and delay tissue restitution upon acute intestinal injury.

| PRJNA1036441 | ENA

Innate immune sensing of influenza virus through IFI16 promote pyroptosis.

Project description:We report that IFI16, which was previously identified as a cytosolic DNA sensor, is essential for the activation of programmed cell death pathways in IAV infected cells. We have identified IFI16 as an innate immune sensor of the influenza A virus. We find that IFI16 recognizes viral genomic RNA upon infection. The activation of IFI16, in turn, triggers the production of type I, III interferons, and also other pro-inflammatory cytokines via the STING-TBK1 and Pro-caspase-1 signalling axis, thereby promoting cell death (apoptosis and pyroptosis in IAV infected cells).

2021-12-31 | GSE163705 | GEO

Distinct immune responses to type I and III interferons are regulated by interferon regulatory factor 1

Project description:Type I and III interferons (IFNs) are critical antiviral molecules thought to activate similar signaling cascades resulting in the induction of shared downstream IFN-stimulated genes. This study reveals an unappreciated fundamental difference in the signal transduction downstream of type I and type III IFNs that has broad implications for their functionalities during infection and inflammation.

2019-09-30 | GSE115198 | GEO

Regulation of pyroptosis in radiation induces mouse intestine cells

Project description:Pyroptosis is a recently discovered form of lytic cell death that is characterized by cell swelling and formation of pores and large bubbles on the plasma membrane. We find radiation could induce pyroptosis in human colorectal cancer HCT116 cells, and irradiation induces pyroptosis in mouse normal intestine MODEK cells only after 36 hours and over 8.0 Gy. In view of the significant pyroptosis effect of MODE-K cells, we selected 4Gy and 12Gy, 24h and 48h for experiments. After ONT full-length transcriptome sequencing, the cell pyroptosis model can screen out the differential genes related to cell pyroptosis, which is helpful to further explore the mechanism of pyroptosis of MODE-K cells.

2024-08-01 | GSE211709 | GEO

Eutherian interferons

Project description:Eutherian interferons

| PRJEB36709 | ENA

Neutrophil extracellular traps induce glomerular endothelial cell dysfunction and pyroptosis in diabetic kidney disease

Project description:Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease. Neutrophil extracellular traps (NETs) are a network structure composed of loose chromatin and embedded with multiple proteins. Here, we observed increased NETs deposition in the glomeruli of DKD patients and diabetic mice (streptozotocin-induced or db/db mice). After degrading NETs with DNase I, diabetic mice exhibited attenuated glomerulopathy and glomerular endothelial cell (GEC) injury. We also observed alleviated glomerulopathy and GEC injury in peptidylarginine deiminase 4 (PAD4)-knockout mice with streptozotocin-induced diabetes. In vitro, NET-induced GEC pyroptosis was characterized by pore formation in the cell membrane, dysregulation of multiple genes involved in cell membrane function, and high expression of pyroptosis-related proteins. Strengthening the GEC surface charge by oleylamine significantly inhibited NET-induced GEC pyroptosis. These results indicate that NET-induced alterations in GEC charge are associated with GEC pyroptosis in the pathogenesis of DKD and suggest that NETs are a potential therapeutic target for DKD.

2022-09-01 | GSE189875 | GEO

Antiviral function of type I and type III interferons in the olfactory epithelium

Project description:Antiviral function of type I and type III interferons in the olfactory epithelium

| PRJNA645461 | ENA