Acetylation-ubiquitination crosstalk in NLRP3-gasdermin pyroptosis: a substrate-state framework with relevance to ulcerative colitis.

What To Know

This paper synthesises published studies (through 10 Aug 2026) on acetylation–ubiquitination crosstalk affecting NLRP3 and GSDMD.

The authors propose a substrate-state framework (abundance, activation competence, localisation, persistence) to organise evidence from non-intestinal and intestinal models, including experimental colitis, but emphasize that full coupling of the modifications has not been demonstrated in human UC.

The review highlights examples where acetylation or ubiquitination individually alters NLRP3 assembly/activation or GSDMD activity/abundance, and notes some non-intestinal studies supporting direct coupling at specific proteins.

However, site-level competition between modifications at the same lysine and definitive intestinal-cell evidence are largely lacking. The take-away is mechanistic: this is a synthesis and conceptual framework pointing to areas for targeted laboratory and translational work rather than a source of clinical recommendations.