New Perspectives on Anticoagulation and Hyperinflammation

In this week's episode, Blood editor Dr. Laurie Sehn interviews Drs. Dan Chalothorn and David Gutstein from Regeneron Pharmaceuticals, and Dr. Ajitha Thanabalasuriar from McGill University on their latest articles published in Blood. The first half of the episode features "Anticoagulation with the mechanistically distinct FXI/FXIa antibodies amrecibart (REGN9933 A2 ) and cenvacibart (REGN7508 Cat )" during which Drs. Chalothorn and Gutstein discuss their research on anticoagulants targeting Factor XI and Factor XIa, which showed promising preclinical results in reducing thrombosis without increasing bleeding risk. They developed two distinct antibodies, targeting different domains of Factor 11, offering potential treatment options for different patient profiles. Next, while discussing "TGF-β–PDL1 signaling in neutrophils preserves the lung barrier during hyperinflammation", Dr. Thanabalasuriar underscores that dissecting neutrophil-specific TGF‑β/PD‑L1 signaling in real ICU patients is essential to translate this pathway into truly personalized therapies that both preserve lung barrier integrity and prevent fatal hyperinflammatory injury.