Pyroptosis in health and disease

Area of Science:

• Cellular Biology
• Immunology
• Molecular Medicine

Background:

• Apoptosis was discovered in the 1970s, paving the way for understanding programmed cell death.
• Pyroptosis is a recently identified inflammatory form of regulated cell death.
• Gasdermin proteins are key effectors in pyroptosis, forming membrane pores.

Purpose of the Study:

• To review the mechanisms of pyroptosis and its effector molecules.
• To explore the relevance of pyroptosis in various diseases.
• To highlight the role of gasdermin family proteins in cell death.

Main Methods:

• Literature review focusing on pyroptosis mechanisms and gasdermin family proteins.
• Analysis of the role of caspases in cleaving gasdermins.
• Discussion of GSDMD-N's lipid-binding and pore-forming properties.

Main Results:

• Pyroptosis is characterized by proinflammatory cytokine release via gasdermin-mediated pores.
• Caspase-1 and caspase-4/5 cleave gasdermins, initiating pyroptosis.
• Gasdermin-D (GSDMD) is crucial, forming pores after caspase cleavage.
• Other gasdermins have distinct functions, and genetic variations link them to diseases.
• Interactions with effectors like ninjurin-1 add complexity to pyroptosis regulation.

Conclusions:

• Pyroptosis is a critical inflammatory cell death pathway regulated by gasdermins.
• Understanding pyroptosis mechanisms is vital for addressing diseases.
• Gasdermin family proteins are key targets for therapeutic interventions.