Pyroptosis-related proteins

Pyroptosis-related proteins constitute a specialized group of molecules that orchestrate pyroptosis, a lytic and highly pro-inflammatory form of programmed cell death. The central executioners of this process are the gasdermin family proteins, particularly Gasdermin D (GSDMD), which form transmembrane pores that disrupt cellular homeostasis and lead to cell rupture [1, 4, 6]. This pathway is typically initiated by the activation of inflammatory caspases, such as Caspase-1, through upstream sensors like the NLRP3 inflammasome in response to various danger signals [13, 14, 19]. The resulting pore formation facilitates the rapid release of mature pro-inflammatory cytokines, including Interleukin-1 beta (IL-1 beta) and Interleukin-18 (IL-18), which propagate the inflammatory response [1, 13]. Dysregulated activity of these proteins is a hallmark of numerous conditions, including acute respiratory distress syndrome, Alzheimer's disease, and myocardial infarction [1, 2, 7]. In oncology, pyroptosis-related proteins play a complex role, where they can either promote anti-tumor immunity or contribute to a pro-tumorigenic inflammatory microenvironment [4, 12, 15]. Therapeutic interventions currently under investigation include small molecule inhibitors of GSDMD pore formation, such as disulfiram, and NLRP3 inflammasome antagonists like MCC950 [1, 5, 11]. Targeting this pathway offers a promising approach to managing sterile inflammation and cytokine storm syndromes without broadly suppressing the entire immune system [1, 3].

Other names

Pyroptosis pathway proteinsInflammasome-related proteinsGasdermin family proteinsPro-inflammatory cell death proteins

Inhibition of Gasdermin D pore formation, inhibition of NLRP3 inflammasome assembly, inhibition of inflammatory caspases (e.g., Caspase-1), or neutralization of downstream pro-inflammatory cytokines (IL-1 beta and IL-18)