HBP activates M1 macrophages during the initial inflammation response, and suppression of HBP expression by heparin injection in septic mice results in a reduction in renal injury severity.
HBP levels dramatically increase and exhibit significant correlation with lung wet/dry ratio and BALF total proteins. Additionally, HBP plays an important role in the alteration of lung vascular permeability in ARDS.
M protein induces HBP release during skin infection, and this directly and indirectly contributes to a number of profound pathophysiological effects such as endothelial hyperpermeability and neutrophil recruitment.
HBP is induced by leptospires and their secreted products through a controlled degranulation mechanism that is not mediated by fibrinogen and β2 integrins.
HBP plays a vital role in the attachment and invasion process of a variety of intracellular pathogens, and HBP even participates in the life cycle of certain parasites.