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Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease

ABSTRACT: Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease

PROVIDER: PRJNA766689 | ENA |

REPOSITORIES: ENA

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Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [T cells]

Project description:We report a pleiotropic disease due to loss-of-function mutations in RHBDF2, the gene encoding iRHOM2, in 2 kindreds with recurrent infections in different organs. One patient had recurrent pneumonia but no colon involvement, another had recurrent infectious hemorrhagic colitis but no lung involvement, and the other two experienced recurrent respiratory infections. Loss of iRHOM2, a rhomboid superfamily member that regulates the ADAM17 metalloproteinase, caused defective ADAM17-dependent cleavage and release of cytokines, including TNF and amphiregulin. To understand the diverse clinical phenotypes, we challenged Rhbdf2-/- mice with Pseudomonas aeruginosa by nasal gavage and observed more severe pneumonia whereas infection with Citrobacter rodentium caused worse inflammatory colitis than wild-type mice. The fecal microbiota in the colitis patient had characteristic oral species that can predispose to colitis. Thus, a new human immunodeficiency arising from iRHOM2 deficiency causes divergent disease phenotypes that can involve the local microbial environment.

2021-11-03 | GSE184875 | GEO

Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [whole blood]

2021-11-03 | GSE184876 | GEO

Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [T cells]

Project description:Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [T cells]

| PRJNA766691 | ENA

Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [whole blood]

Project description:Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease [whole blood]

| PRJNA766692 | ENA

iRHOM2 deficiency causes environmentally directed immunodysregulatory disease

Project description:iRHOM2 deficiency causes environmentally directed immunodysregulatory disease

| PRJNA741290 | ENA

iRHOM2 deficiency causes environmentally directed immunodysregulatory disease

Project description:iRHOM2 deficiency causes environmentally directed immunodysregulatory disease

| PRJNA741289 | ENA

Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease

Project description:This SuperSeries is composed of the SubSeries listed below.

2021-11-03 | GSE184877 | GEO

iRhom2 Promotes Lupus Nephritis through ADAM17-Dependent TNF-α and EGFR Signaling

Project description:Lupus nephritis (LN) often results in progressive renal dysfunction. The inactive Rhomboid 2 (iRhom2) is a newly identified key regulator of A disintegrin and metalloprotease 17 (ADAM17), whose substrates, such as TNF-α and heparin-binding EGF (HB-EGF), have been implicated in the pathogenesis of chronic kidney disease. Here we demonstrate that deficiency of iRhom2 protects the lupus-prone Fcgr2b-/- mice from developing severe kidney damage without altering anti-double stranded (ds) DNA Ab production, by simultaneously blocking the HB-EGF/EGFR and the TNF-α signaling in the kidney tissues. Unbiased transcriptome profiling of kidneys and kidney macrophages revealed that TNF-α and HB-EGF/EGFR signaling pathways are highly upregulated in Fcgr2b-/- mice; alterations that were diminished in the absence of iRhom2. Pharmacological blockade of either TNF-α or EGFR signaling protected Fcgr2b-/- mice from severe renal damage. Finally, kidneys from LN patients showed increased iRhom2 and HB-EGF expression, with interstitial HB-EGF expression significantly associated with chronicity indices. Our data suggest that activation of iRhom2/ADAM17-dependent TNF-α and EGFR signaling plays a crucial role in mediating irreversible kidney damage in LN, thereby uncovering a novel target for selective and simultaneous dual inhibition of two major pathological pathways in the effector arm of the disease.

2019-01-01 | GSE107705 | GEO

iRhom2 Promotes Lupus Nephritis through ADAM17-Dependent TNF-α and EGFR Signaling

Project description:iRhom2 Promotes Lupus Nephritis through ADAM17-Dependent TNF-α and EGFR Signaling

| PRJNA421160 | ENA

Phosphorylation of iRhom2 controls stimulated proteolytic shedding by the metalloprotease ADAM17/TACE

Project description:TACE (TNFa Converting Enzyme), is responsible for cleavage (‘shedding’) of membrane-tethered signaling molecules such as TNF of EGFR ligands. TACE interacts with iRhom2, which mediates the exit of TACE from the endoplasmic reticulum. In this study we analyze a new role for iRHOM2, where a fraction of the protein remains in the membrane and the phosphorylation of different residues in its cytoplasmatic tail is necessary for TACE shedding function.

2021-11-03 | PXD007763 | Pride

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