Sepsis may progress into lethal septic shock, but the cellular mechanisms are still unclear. Here the authors show that, in septic mice, platelets activate perivascular mast cells to cause systemic hypotension and vascular pathology, while inhibiting platelets or mast cell activation suppresses septic shock induction, thereby implicating potential therapy targets.
- Hae Woong Choi
- Joo Hwan Noh
- Jörn Karhausen