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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Allergy Clin Immunol. 2013 Mar 28;132(3):584–592.e4. doi: 10.1016/j.jaci.2013.02.003

Figure 6.

Figure 6

Hypothetical model in which the Th2 milieu facilitates excessive fibrin deposition in NP tissue. Th2 inflammation leads to recruitment of M2 macrophages and subsequent production of FXIII-A that induces excessive fibrin deposition by cross-linking of fibrin and via the anti-fibrinolytic effect through binding α2PI to fibrin. In the presence of Th2 cytokines, t-PA levels are reduced, causing impaired plasmin generation, which in turn decreases fibrinolysis.