Saliva-Induced Clotting Captures Streptococci: Novel Roles for Coagulation and Fibrinolysis in Host Defense and Immune Evasion

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Abstract

Streptococcal pharyngitis is among the most common bacterial infections, but the molecular mechanisms involved remain poorly understood. Here we investigate the interactions among three major players in streptococcal pharyngitis: streptococci, plasma, and saliva. We find that saliva activates the plasma coagulation system through both the extrinsic and the intrinsic pathways, entrapping the bacteria in fibrin clots. The bacteria escape the clots by activating host plasminogen. Our results identify a potential function for the intrinsic pathway of coagulation in host defense and a corresponding role for fibrinolysis in streptococcal immune evasion.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Georgia Institute of Technology
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Infektionsmedicin

Nyckelord

Originalspråkengelska
Sidor (från-till)2813-23
Antal sidor11
TidskriftInfection and Immunity
Volym84
Utgåva nummer10
StatusPublished - 2016 okt
PublikationskategoriForskning
Peer review utfördJa