ZC3H12C expression in DCs is necessary to prevent lymphadenopathy of skin-draining lymph nodes
Journal Title
Immunology and Cell Biology
Publication Type
epub ahead of print
Abstract
The role of RNA-binding proteins of the CCCH-containing family in regulating pro-inflammatory cytokine production and inflammation is increasingly recognized. We have identified ZC3H12C (Regnase-3) as a potential post-transcriptional regulator of Tumor necrosis factor expression and have investigated its role in vivo by generating Zc3h12c-deficient mice that express GFP instead of ZC3H12C. Zc3h12c-deficient mice develop hypertrophic lymph nodes. In the immune system, ZC3H12C expression is mostly restricted to the dendritic cell (DC) populations, and we show that DC-restricted ZC3H12C depletion is sufficient to cause lymphadenopathy. ZC3H12C can regulate Tnf mRNA stability via its RNAse activity in vitro, and we confirmed the role of Tnf in the development of lymphadenopathy. Finally, we found that loss of ZC3H12C did not impact the outcome of skin inflammation in the imiquimod-induced murine model of psoriasis, despite Zc3h12c being identified as a risk factor for psoriasis susceptibility in several GWAS studies. Our data suggest a role for ZC3H12C in DC-driven skin homeostasis.
Publisher
Wiley
Keywords
RNA-binding protein; Regnase 3; Tumour necrosis factor; dendritic cells; lymphadenopathy
Research Division(s)
Inflammation; Blood Cells And Blood Cancer; Immunology; Ubiquitin Signalling
PubMed ID
35048402
Open Access at Publisher's Site
https://doi.org/10.1111/imcb.12521
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2022-02-18 11:34:17
Last Modified: 2022-02-18 03:09:39
An error has occurred. This application may no longer respond until reloaded. Reload 🗙