Lipid-mediated activation of BLT2 promotes membrane repair to prevent cell death.

Lipid mediator 12-HHT activates BLT2 to promote membrane repair and prevent cell death during bacterial toxin exposure.

• Why it matters: Understanding how epithelial cells resist membrane damage is crucial for developing therapies against bacterial infections that compromise host barriers.
• What they did: The study examined BLT2's role in alveolar epithelial cells using lipid mediators, genetic models, and pharmacological inhibitors, focusing on membrane repair mechanisms.
• The result: Activation of BLT2 by 12-HHT enhances membrane repair via extracellular vesicle release and actin polymerization, offering potential therapeutic targets to bolster host defenses.