TARGETING THE CAPSULE OF KLEBSIELLA PNEUMONIAE WITH A CATIONIC CR3-BINDING PROTEIN ENHANCES PHAGOCYTOSIS AND PROMOTES BACTERIAL CLEARANCE AND SURVIVAL IN A MOUSE SEPSIS MODEL
This study demonstrates that recombinant dimeric Platelet Factor 4 (rdPF4) acts as a cationic opsonin that binds to the negatively charged capsule of *Klebsiella pneumoniae*, thereby enhancing CR3-mediated phagocytosis and significantly improving bacterial clearance and survival in a mouse sepsis model.