RIP3 and MLKL regulate ER stress in alcohol-associated liver disease and pharmacological ER stress models: Insights beyond necroptosis

This study provides new mechanistic insight into how RIP3 and MLKL regulate hepatic ER stress responses, extending their roles beyond necroptosis. By demonstrating that genetic or pharmacological inhibition of <i>Rip3</i>, RIP3 kinase activity and <i>Mlkl</i> attenuates ER stress signaling, reduces cell death, and promotes adaptive ER remodeling, our findings identify these proteins as key modulators of hepatocyte survival under stress. These results are important for researchers and clinicians focused on alcohol-associated liver disease and other ER stress-driven liver disorders, as they highlight novel therapeutic targets. In practical terms, modulation of the RIP3-MLKL axis could inform the development of interventions aimed at enhancing ER stress resilience, with potential applications in drug development for ER stress-associated liver injury.